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Maf vs speed density turbo

Maf vs speed density turbo

Timing Options N Alpha, Speed Density, and Mass Flow Metering. Speed Density vs Mass Air Flow In general, I understand that SD is a derived value that can, besides other things, lag behind MAF which is a mostly measured, real-time value. MAF vs Speed Density I am running a 3" GM MAF in draw through but have a MAP and IAT sensor installed and logging so would be just a matter of tuning for me. To understand how a MAP-sensor works and what advantages it has over the standard Air Flow Meters (AFM) that came on our cars, or even upgraded Mass Air Flow meters (MAF), we have to examine how these devices generate a volume-air-flow signal to the Bosch Motronic computer (DME). MAP sensor data can be converted to air mass data using the speed-density method. 00. You do that on the MAFComp tab by selecting “Speed Density” as your Base MAF type. The only benefit that SD offers actually be some driveability improvements thanks to the superior mapping. MAP sensors respond to changing conditions very quickly, enabling it to have fairly good transient response especially compared to Mass-Air-Flow ECMLink provides enhanced logging functionality (MUCH faster than factory) and all the tuning tools you need to run any number of different configurations from bone stock cars on a stock MAF to 11-second road course beasts on speed density to 8-second drag cars running a GM MAF. '89 turbo-s (2. Already have the MAF thing covered and just trying to get a feel for the interest in a Replace it with a more accurate speed-density based metering system Did the Fox Chassis Thunderbirds/Cougars ever use a speed density computer? If so, what years and what needs to be done to get them to use a MAF? Just Eliminating the MAF is not necessarily part of adding boost to an LS, but with early generation computers like ours, scaling the MAF signal would cause us to lose important resolution and thus it made more sense to go with a Speed Density tune. Includes Maf Translator Version I was able to make the MAF 2. EcuTek also has traction control strategies that Cobb does not. Imagine a 3-D table with two axes and set values in the middle. Eagle Talon Turbo 4G63 1995-1999. Never even considered Speed Density until now - for my MAF vs Speed Density. But What I would do is sell your MAF harness computer ect on Ebay or local newspaper. Mass Air Flow (MAF) Often we deal with the question, "Which is better speed density (MAP) or mass air flow (MAF)". 1 product. Because of this, MAF sensors can be harder to tune based on the interpretation of the ECU for a given air flow. Thnx Adam . One thing that should be mentioned is that the Cobra MAF system is a little different than the GT/LX MAF system. AIT Options. 8 products. 95. 1. This is a discussion on MAF vs Speed Density within the Computer & Tuning forums, part of the LSx Technical Help Section category; What is the advantage of a speed density tune over a MAF? im stuck between either keeping my speed density system (got an 1986 Mustang by the way) or convert to MAF. "MASS AIR FLOW" and "SPEED DENSITY " are simply different routes to achieving the same thing, and that's control of the fuel air ratio. Mass airflow voltage can max out under higher boost levels. MAP was the only load sensor on strict speed-density fuel systems. mass air flow vs. Hi everyone, I just had my engine rebuilt and just got my car back and tuned. I work at a ford dealer and mentioned the option of Speed Density so some of the techs and they all said don't do it as all they have seen in ford was problems and since Ford switched to a MAF there drivability complaints have dropped …The software can program the ECU to run in the traditional pure MAF mode, a pure “Speed Density” mode, or a Hybrid Mode which uses both MAF and “Speed Density” with …2012-07-26 · \Turbo 5. would be less headachs. Speed Density vs MAF Discussion in ' 1995 mustang gt 351 swap turbo evilcw311 replied Feb 22, 2019 at 8:34 AM. At least then we could see the difference. 2 on small turbos and will go 8s this season for sure on a stage 3 turbo car. 370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley DominatorBut you would still like to know manifold pressure after a turbo. Off Road Ecotec Turbo Kits & Components. But thats why I want to run the kit- iron these things out. Typical MAF systems also use additional sensors similar to those found in Speed Density systems. Pop the hood and unplug the MAF sensor. The tuner gave me a free upgrade to speed density because I had done an engine rebuild. Mass Air Flow MAF by PCM of NC, INC / Friday, 20 January 2012 / Published in Tuning Often we deal with the question, “Which is better speed density (SD) or mass air flow (MAF)”. I have however been reading up on speed density. either way, i think we can all agree that the stock AFM is the worst. 3 Hello everyone I recently purchased a copy of HP Tuners for my latest project and so far I love the interface! I switched to a 2 Bar Speed Density tune recently and am a little confused with the way the car behaves. SPEED DENSITY. It is possible to change you MAF based vehicle to Speed Density which would allow proper use of a BOV or different intake. There are several different types of MAF sensors but for most MAF vs. The MAF sensor is located somewhere in the intake stream typically away from sharp bends and typically at least 8-10 inches away from the throttle body however these rules are not always followed. at Import Blowout Sales. 21 watching | 4 sold; Plug into MAF connector and plug in MAP and Temp sensors. I did not understand the difference in speed density vs MAFT. MAP sensor data can be converted to air mass data using the speed-density method. A mass air set-up is much more agile than a speed density system in that it meters the air via the Mass Air Flow sensor (MAF), and, using input from the sensors at its disposal, makes tuning 2011-07-02 · im stuck between either keeping my speed density system (got an 1986 Mustang by the way) or convert to MAF. those from the I6 EA - AU Falcon. Speed Density VS MAF First this is an assembled truck, never built as far as I can find out; DBC 8. Speed Density vs MAF If this is your first visit, be sure to check out the FAQ by clicking the link above. If the engine is ingesting the maximum amount of air it can hold, then that engine is considered to be operating at 100% VE. 7 products. Use iWire's plug and play Speed Density harness that converts the stock connector to the new Intake Air Temperature Sensor (IAT) connector. Speed-Density has many things going for it: Pressure sensors do not pose any restriction to the flow of air into the engine, unlike a MAF sensor. RPM), the other has MAF vs. The cam is the culprit. It can handle big power no problem. hpt and perform a calibration only reflash of this file into your PCM. MS2extra Mass Air Flow fuel and spark Miata 1. well thats why I threw a MAF out there. MAF Airflow vs. Eliminating the MAF is not necessarily part of adding boost to an LS, but with early generation computers like ours, scaling the MAF signal would cause us to lose important resolution and thus it made more sense to go with a Speed Density tune. MAF vs Speed Density. We have many products for your Turbo Buick V6, Turbo Trans Am, and Grand National, as well as all LSX based vehicles such as late model Camaro, Firebird, and Corvette. com › Forums › Specific Tech Sections2007-03-21 · Quick question my dads 89 LX is having issues with the MAF meter he's using Pro-M, we've tried C&L meters in the past and a Granatelli, also a summitN Alpha, Speed Density, and Mass Flow Metering. ask. I used the off-the-shelf tephra v7 9651706 rom pre-patched for speed density, option 5 in the tephra v7 final thread. . In the VCM Editor>Edit>Engine Diagnostics>General>MAF Sensor Fail Frequency = 0. 2008-04-21 · Closed Loop Speed Density vs Open Loop Speed Density Closed Loop will allow your O2's to make fuel adjustments by STFT (Short Term Fuel Trims) - CLSD recommended if your O2's are decent because a heatsoaked IAT in traffic will cause a Lean condition on OLSD. MAP - manifold-absolute-pressure (also known as speed-density) measurements combine simplicity in sensor design with the power of digital microprocessors to compute a simulated volume-air-flow signal that is sent to the stock computer. This is a discussion on MAF vs Speed Density within the Computer & Tuning forums, part of the LSx Technical Help Section category; so for converting, could i just send the PCM for a mail order or would it have to be a Speed Density VS MAF. MAP sensor VS. If you are using Speed Density, you will need the 16198262 (730) ECM. Restricts incoming air. Speed density has been around longer than MAF systems, and use a range of data to calculate airflow. Another improvement is the ability to log VE. 7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. I bought (pre-order) the flashpro because I want power and the correct AFR on the car. if youre using mass air computer, then youre stuck running a mass air meter, and as youre well aware, the ford factory mass air is generally reguarded as superior to the factory ford speed density (not to be confused with the far more powerful aftermarket speed density Speed Density vs MAF IGOTASTi is an online forum and community for all Subaru WRX STi enthusiasts. 3 hack work for a year until I changed the intake configurations. A speed-density based system is cheaper to produce (in quantity) after the fleet of tuners gets their job done. 1 Bar MAF - Enhanced: This enhancement is for vehicles using a MAF. A MAP sensor can still be used with Tell the ECU to ignore incoming MAF data and calculate it from speed density data instead. A properly tuned MAF (fake world) vs a properly tuned SD (fake world) will net almost IDENTICAL results. Whilst switching to Speed Density eliminates the need for a MAF sensor, the This is called the speed-density method of calculating engine load for engines without MAF sensors. On OBD-II engines, the MAP sensor signal is also used for EGR diagnosis. Mass Air Several applications that use MAF biased strategies also use Speed Density as a backup or for a blended fuel calculation. I have spent lots of time searching but nothing shows up. Speed density will react slower than a maf, but it's still good. Most MAF sensors are located at the air filter housing and are connected to the throttle body assembly by a flexible plastic duct. I work at a ford dealer and mentioned the option of Speed Density so some of the techs and they all said don't do it as all they have seen in ford was problems and since Ford switched to a Speed Density vs. So last week my turbo fried and I'm just overhauling the engine. The MAF is in general not as accurate at low speeds hence why the factory does this, but a bunch of lazy "tuner shops" will default the tune to MAF only mode since all they have to do is modify the MAF airflow vs …This system is less precise than speed density or MAF and is therefore generally only found in racing or on heavily modified street engines with big camshafts. So, generally speaking, I …2010-01-26 · MAF vs Speed Density. maf vs speed density turbo 3 turbo PF3 on LA3 Speed Density J3 chip [SVOJohn setup upgrading your TPI MAF and CPU links Because this is a Speed Density system, most enthusiasts feel this is the easiest system to tune. free intake i've compared performance with the stock air box and snorkle versus just a filter attached to the compressor inlet. a speed density system, MAP, Mass Air Pressure guesses the mass of air entering the system through a VE (Volumetric Efficiency) table. RPM. Speed Density vs. Heres a breakdown for 87-95 302/351 speed density trucks using a 88-93 mustang gt ecu. Even if an intake pipe blows off or there is a vacuum hose leak the car will run the same, as the actual manifold pressure will not be any different so you will not be left stranded some where. An Internet research will often leave you with more questions than answers. the only thing the PMSs map sensor does is regulate the boost tables. A mass (air) flow sensor (MAF) is a sensor used to determine the mass flow rate of air entering a fuel-injected internal combustion engine. There are several different types of MAF sensors but for most 2017-09-02 · i thought it was one or the other didn't the LS engines have the two separate methods employed during different years and applications [car vs trucks?] are you finding that both methods are combined on the LS fuel injection systems? that is interesting to learn more about i'm still running a …2012-05-04 · Speed Density and a GM MAF do the same thing, provide the ECU with airflow data, but each have a different way of doing it. This is a good thing. Imagine what motors running speed density tuning without a MAF can gain! The Ultimate Air Lid For Speed Density Tuners For those of you that have moved to a speed density tune (SD) and removed the MAF sensor, this is the perfect air lid for you! Archived. maf vs speed density turboMAFless tuning is a method of operating the fuel injection system on a gasoline-powered motor is also referred to as 'Speed-Density' system, as opposed to a MAF system. com/youtube?q=maf+vs+speed+density+turbo&v=yDbNH4sHQzU Apr 1, 2016 Combustion Engine Tuning Tutorial: Speed Density, Mass Air Flow, Correction Tables All music licensed by Mega Mechatronics for  -SD vs MAF Tune — BD Turnkey Engines LLC bdturnkeyengines. stock airbox + snorkle vs. of ownership the turbo went bad, it was covered 2008+ WRX/STI MegaMAF 73mm Big MAF Cold Air Intake (type 2) $210. So same car - same dyno - comparing MAF to MAP at the same boost. Once upon a time an engine needed three things to run: fuel, air, and fire. Speed So last week my turbo fried and I'm just overhauling the engine. We can get just about the same driveability as a MAF car, but we can use this method for nearly unlimited HP. Speed density systems can handle much higher rev counts than ordinary MAF sensors, which tend to go on holiday when you get up to the realms of 8000-9000rpm – although other variables apply here. the engine itself is looking for a fuel/air ratio matching the load and rpm range to maximize its power curve. Maf v's speed density . 2012-03-10 · If we could see a big turbo T5 using the ARD 4. 9. ) AWD Mitsubishi Evo 8 / 9 Speed Density Hardware Conversion Kit Speeddensity Our package will include 4 bar Omni MAP Sensor & GM AIT Sensor w/ Pigtail. HP Tuners also offers a number of speed density mode enhancements that improve the VCM's ability to run in speed density mode and also provide additional parameters allowing for forced induction tuning (2bar/3bar) in speed density mode. *This video is for educational Turbo Tweak Speed Density, the reason? 20 adjustable parameters, no more MAF sensor. Precise and consistent load calculations along with feedback from other critical sensors allow the ECU to accurately …Speed Density EEC Tuning Guide This guide aims to provide tuning tips and method for tuning Speed Density (SD) or MAP sensor based EECs, i. Mass Air? If your going with blower/turbo stick with the Speed Density. I'm not sure if the 2009-07-25 · A search on 'speed/density' and 'mass flow' should highlight the differences. Most people run a factory cam with this. the amount of air it can actually hold, expressed in a percentage. At AFI we deal with this question a lot, "Which is better speed density (SD) or mass air flow (MAF)". 2010-08-08 · MAF vs Speed Density I am running a 3" GM MAF in draw through but have a MAP and IAT sensor installed and logging so would be just a matter of tuning for me. convert speed density to mass air flow. Both GM MAF and Speed Density have done very high HP numbers, I never had a problem with the GM MAF-t setup so im sticking with it. I thought speed density was used solely when the MAF sensor was removed. 25" inlets) but can also be used with a stock turbo by 2014-03-26 · Re: Auto Tuning for Speed Density Users Post by 86GT » Wed Mar 26, 2014 9:09 pm Yest it is there but the issue is some vehicles shut the injectors off during decel and this plays havoc on the Measured AFR which is used for feedback. They do it because maf supports performance upgrades. If a 4" draw through setup would cause a rough idle would a blow through cause the same problems? IIRC DJ is running a 4" draw through maf without issue. 2. It's about "Speed-density-throttle method". 4. The Speed Density systems use a MAP sensor, and are very reliable, and cheaper to fix (comparison of replacing a MAP sensor vs. Speed Density (MAP) | The Turbo Forumswww. Is it a problem to run sd before I need it? * Registered users 2005-03-05 · MAF vs Speed Density. By Spanky, May 29, 2010 in Performance Modifications My question is for any of you who have converted your MAF to a speed density system. 94 Q45t 5 speed, 2007 BMW M values would be skewed MAF Translator Pro Speed Density Harness for 1G DSM Eclipse Talon Turbo 90-94 This will greatly improve airflow and turbo spoolup. $49. ly/freetuning Come along to our next free LIVE webinar to have your own questions answered - Speed density vs maf Hi everyone, I just had my engine rebuilt and just got my car back and tuned. com/sd-vs-mafTUNING – SPEED DENSITY vs MAF. 2010-09-09 · Go to the Sticky at the top of the GM V8 Engine Tuning - Gas Vehicles (Gen 4) page, and click on the one which says "Read Me!!! Tuning How-To's & General Information" Scroll down and you will see a link which says "Speed Density tuning E38/E67 PCM's" Click on that and it will give you a general idea on how to set up your car for SD tuning. Calibration tubes are also available to custom tailor your installation. In the forum you will find an informative tech area, a place for Member’s journals, Vendors with special Members pricing, and monthly contests. Mar 22, 2017 I have a question regarding stock MAF vs. These are the My question is should I stay with the Stock MAF or go Speed Density with my new ETS kit?Forced Induction - Speed density vs MAF tuning - I was trying to find out what people are doing on their turbo ls engines? and what are the advantages and Jan 19, 2010 What is the advantage of a speed density tune over a MAF? This is a discussion on MAF vs Speed Density within the Computer & Tuning . 0 Mustangs beginning in 1988 (California only), and then it was added to all V8 Mustangs from 1989-1995, as well as HO Thunderbirds/Cougars from 1991-93. If your vehicle was made in, say, the last 15 years, it’s probably equipped with a MAF system. The MAP sensor can also be used intables heavier than the MAF tables, and in effect put the car into speed density mode while in boost. With speed density, your map sensor is calculating the airflow that the motor is taking in but only as an estimated value. This logic is exactly why I am skipping the TBI and speed density step and going straight to a Ford MAF based fuel injection system. The brown and blue wires the oil cooled ball bearing turbo is used as the oil in the airflow can contaminate the MAF sensor by the reversal flow. A speed density system is more compact than the MAF system but its ECM is sensitive to engine modification and requires recalibration when the engine is modified for more power. 3. e. Most modern fuel injection systems use more than one of these algorithms, and switches between them based on conditions and load (the first three are collectively referred to as "open loop" modes in systems that support a closed loop mode). is all involed with converting the speed density to a mass air flow. You should see the stock tune. EFI Live for turbo LS (already have the correct MAP sensor for speed density) and, if possible, integrate with my AEM wideband. This is the factory method for 2008-2010 Evolutions. Using TunerStudio’s AutoTune with MAF as the preferred metering method is Speed Density, 410 cubic inches of transit between the MAF and turbo inlet. As with most things in life there are advantages and disadvantages for both. the difference is significant, and it's definitely worth removing the stock air box and snorkle if you want maximum turbo performance. Air changes its density with temperature and pressure. Tell the ECU to ignore incoming MAF data and calculate it from speed density data instead. I have read I don't really need an sd tune however with my setup. The MAF Speed density has 2 hoses going to the intake. This kit includes a reliable 4-bar MAP sensor with a Mitsubishi MDP-style connector end and a GM IAT sensor with IAT pigtail and bung. Set all values = 0 . However, it would require sensor changes and20+ Years of experience in building, tuning and racing high performance vehicles. With the 4bar I'm well below the 4V low RPM and 4. 4 Turbo Archived. Converting a Ford Thunderbird's MAP sensor into a MAF - Hot Rod Magazine [of Speed Density owners] can get away with Yes you do! Unless you're afraid of the wife. Off Road Ecotec Engine Harnesses. I have a 2007 wrx and I'm currently stage 2 with an ebcs and aftermarket tmic. The only difference you can be frustrated and pissed of tuning Speed density, built the VE from scratch if you feel like it, or you can get your car dial in with the Maf, then use the maf to build the VE tables, a featured offered in ECMlink. 1 br map speed density vs. Aug 16, 2017 Learn more about EFI tuning instantly, and for FREE - http://bit. We also run the basic Translator. Mass air flow sensor equipped cars fuel either directly from or by a blended model of both mass air flow and speed density calculations. Any help is …Mass air flow sensor equipped cars fuel either directly from or by a blended model of both mass air flow and speed density calculations. One is the MAF system, second is speed density (SD), third is the alpha-N, and fourth is closed loop. you'll wish you would have just bought a MAF, computer and bigger injectors. 4M MAF on a dyno vs exact same setup using MAP. Includes your choice of matching coupler for a 3", 2. Dec 10, 2011 #4. igotasti. It should look like this Save this tune as SDStarter1. ===== Goodbye MAF :D Spent a few hours converting over my ROM and trying out a few iterations based on some stuff I had seen posted online. So when I got to the first pull off I turned the truck off and restarted it. MAF tuning All of my past "performance" vehicles have always been tuned via the MAF. A MAF can be used in conjunction with SD, but because the stock MAF uses the intake air temp input to the ECU, you have to disable speed density's use of the air temperature sensor for airflow calculation. ly/freetuning Come along to our next free LIVE webinar to have your own questions answered - Speed density vs maf Hi everyone, I just had my engine rebuilt and just got my car back and tuned. This simplifies the math when correcting MAF or VE values to achieve the desired ratio. Ford began using the mass air system on 5. This will set a P0103 code and turn on the SES light. The boost pressure sensor on the 99 and later turbo cars with Bosch system usually are noted by boost control codes. Mass Air Flow Mass air flow sensor equipped cars fuel either directly from or by a blended model of both mass air flow and speed 2012-02-16 · Why Speed Density The most basic function of an engine control unit (ECU) is to measure airflow and its translation to engine load. speed density. Off-Road Ecotec Turbo Engines. 0L Turbo Subarus. As the name implies, it uses the engine speed vs boost pressure and temperature (that's your air density) to control the engine parameters. Off Road LS Engine Packages. The main reason I made a speed density chip was there was demand for it in the Speed Density (MAP) vs. It’ll work fine in stock and most performance situations. Set Abuse Mode RPM, Abuse Mode TPS and Abuse Mode Speed = 0 D. AEM air inlet temp sensor with wiring lead and aluminum weld bungTurbo Ranger Forums > Lounge > Lounge BS: Speed density vs. BD Turnkey Engines will be SHIPPED with a Speed-Density / CLOSED Loop tune. The question, "Which is better speed density (SD) or mass air flow (MAF)". what changes would that do?, half the people i talked to said yes convert it, gives more room for horsepower, and others said no, waste of time and provides better tuning and performance reliability. One example is when maxing a turbo out its compressor map efficiency will rapidly drop, there isn’t an easy way to compensate for this VE change without a 3D map. What system did you use? I have a pulsar motor and want to change over. fast!)EVOLUTION VIII-IX - INTAKE KITS (SPEED DENSITY) /// BACK TO TOP: STM EVO 8/9 3. I dont know who makes them and how they work but, research some more. Self-test ECU will not register the MAF’s response speed reduction People usually run the MAF after the turbo when they are using a BOV that is vented to the atmosphere. Learn more about EFI tuning instantly, and for FREE - http://bit. But typically the turbo will respond a bit quicker and spool will improve 100-200 rpms. 2009-12-02 · MAF to Speed density conversion on an VIII ECU / Mapping GM sensors apparently scale the same as the MAF's IAT sensor. Higher performance applications and supercharging may suggest more complexity is needed. The software can program the ECU to run in the traditional pure MAF mode, a pure “Speed Density” mode, or a Speed Density A MAF sensor isn’t the only way for the ECU to calculate engine load and a common alternative is to use a manifold pressure sensor (MAP sensor) instead. 7 watching | 4 sold; Use this adaptor to conect a GM 3 wire MAF …2014-04-17 · The wiring was pretty brittle when I did this and I think I might replace the whole harness altogether, my question is what would be the better set up if I plan on putting a turbo on my 88 in a year or so? Mass air or speed density? Right now it only has a Performer 5. C. What is speed density? Speed density is nothing more than a different method to calculate the amount of air entering the engine. Set MAF Fail High Frequency to 0 & MAF Fail Low Frequency to 0 The PCM will detect a MAF fault as soon as you key on and thus revert to speed density mode. is it one of those "doesnt gain horsepower just supports it" things? and whats the difference. A mass air flow meter With the IS300, people run into way more problems putting the MAF pre-turbo vs. But I think it hinges on the flexibility of the engine, providing sufficient power and economy while adhering to emissions rules. 2017-08-16 · Learn more about EFI tuning instantly, and for FREE - http://bit. it will looks somewhat like maf usage on a ms1 and be just as annoying to tune as a speed density setup. The PCM will still set the code for a MAF fault and thus still revert to speed density. Page 2 of 7 - cobb vs ecuTek - posted in R35 GT-R: EcuTek now has full featured speed density. Our car's come stock with a MAF system, that actually physically reads the amount of air is going into the motor. Engine speed (RPM) and air temperature are also necessary to complete the speed-density calculation. In these applications, the PCM will store a P0100 through P0104 MAF-related trouble code. 3000GT / Stealth / GTO Forum > Mods and Tech support > Turbo Engines and Systems > Tuning, Engine electronics and ECU discussions > Maft with GM MAF or Maft pro with speed density? Tuned with chrome. Highly experienced in engine tuning Tell the ECU to ignore incoming MAF data and calculate it from speed density data instead. Speed density applications simply point to It certainly seems that way. 0L HO MASS AIR CONVERSION For Converted or Transplanted 5. 370 CI - Twin 6766 Turbo - Jakes stage 5 4L80E - MWC 9" - Holley DominatorThe restriction from a MAF is very small for most turbo Buicks. 3 Bar MAP - Speed Density: This enhancement is a 3bar speed density enhancement for medium to high boost turbocharger and supercharger applications. Output Frequency: This table is used to calibrate the MAF sensor. but would it be This is known as speed density (engine speed and density of the air charge). 5" TITANIUM PIE-CUT SD INTAKE PIPE (NO MAF) The STM 3. 4M MAF on a dyno vs exact same setup using MAP. ESL seeks to maintain competitive in Mass Air Flow Sensor (MAF) It is intended to be insensitive to the density of the air. Anyway i put the maf back on and tuned it as the factory has it speed density for the fast transitions and maf for steady state, the 6l80e Speed Density VS MAF If this is your first visit, be sure to check out the FAQ by clicking the link above. 6 products. 4bangerD's Eclipse N/T (w/turbo Speed density has been around longer than MAF systems, and use a range of data to calculate airflow. And get a 1990 to 1992 SD wiring harness off of Ebay or a place that makes them. 5" or 2. Because some manufacturers like GM incorporate a manifold absolute pressure (MAP) sensor to measure intake manifold vacuum, their systems can revert to speed density operation when their MAF sensors malfunction or lose their calibration. Speed Density (MAP) vs. Buy It Now. The lower the temperature, the greater the density, and/or the greater the volume passing over the heated element, the greater the cooling. It measures the volume of air that is coming through the intake to determine how much fuel to inject. I have seen many running without MAF using a speed density tune. Maf has 1. If it is tuned properly you will not have ANY problems. it's really just a personal preference, they both work good. Even when operating in MAF only mode the SD tables will be utilized in calculations. 0 gt. MAF Signal: Place in pin 50 . Never even considered Speed Density until now - for my current project. That’s what carbs, coils, and distributors are for. The speed density refers to two things: the speed of the engine (RPM) and the manifold pressure (MAP). Once the electronic control module (ECM) knows the amount of air entering the engine, it looks at these other sensors to determine the engine’s current state of operation (idle, acceleration, cruise, deceleration, operating temperature, and so on), then refers to an electronic map to find the N Alpha, Speed Density, and Mass Flow Metering. MAF calibration: Fueling can be used as a guide to determine MAF adjustment. A speed density system is more compact than the MAF system but its ECM is sensitive to engine modification and requires recalibration when the engine is modified for more power. This topic is now archived and is closed to further replies. This is known as Speed Density (engine speed and density of the air charge). As I understand, an SD tune may provide for some snappier throttle response, possibly some "smoother" …Typical MAF systems also use additional sensors similar to those found in Speed Density systems. I believe it When adding performance to your Fox Body, the MAF will most likely have to be upgraded. This topic is VERY debatable. While both sensors accomplish the same thing we could give the +’s of each. 2018-04-18 · Speed Density VS MAF First this is an assembled truck, never built as far as I can find out; DBC 8. We specialize in high horsepower forced induction engines. But typically the turbo will respond a bit That's actually not a huge split at all at WOT. . By Spanky, May 29, 2010 in Performance Modifications Speed density has 2 hoses going to the intake. MAP sensor . Mass Air Flow (MAF) Mass air flow sensor equipped cars fuel either directly from or by a blended model of both mass air flow and speed density calculations. Available in three finish options: Polished, brushed aluminum or gloss black powdercoat. MAF vs Speed Density Sign in to follow this . GM used MAF sensors on the turbo Buick V-6 Grand National, ’85-’89 TPI, ’94-’98 LT1, ’96 LT4, and all LS1 engines. Speed density vs maf Hi everyone, I just had my engine rebuilt and just got my car back and tuned. I also understand that MAF is the the value of choice when it comes to computing engine load for use in our ECU tables for several reasons, especially when modifying TUNING – SPEED DENSITY vs MAF BD Turnkey Engines will be SHIPPED with a Speed-Density / CLOSED Loop tune This topic is VERY debatable. com/vBforum/threads/3895-Speed-Density-vs-MAF2019-03-04 · Speed Density vs MAF IGOTASTi is an online forum and community for all Subaru WRX STi enthusiasts. My own car is a Speed Density so maybe sumone could clear this up for me. 5" Titanium Pie-Cut SD Intake Pipe was designed specifically for the Evolution VIII & IX bolt-on FP Turbos such as the Red, Black, Zero and Zephyr (3. I wanted to know some details on this battle STOCK MAF vs MAP ECU (version 1) I will have a small turbo, like a 61mm No engine work How much can the Stock MAF handle and how good? Aftermarket ECU Functionality on Subaru MY01-05 OEM ECU. The difference between MAF and speed density is one table has MAP vs. Ford has used MAF MAF vs Speed Density. If you want or are using a MAF system, you will need the 16198259 (165) ECM. But typically the turbo will Speed Density SD vs. Speed Density Vs. for a diesel the operations of a MAF/MAP may differ compared gasoline engine as knock/pinging will kill a gas engine but is the key operation component for a diesel engine 2014-01-24 · As for the speed density tuning, I have been running speed density for over 5 years in North Pole, Alaska. ihave a 87 5. I believe this code is saying the MAF consistently giving a different reading than what is plausible. Other platforms use a Speed Density based strategy which utilize a MAP(Manifold Absolute Pressure) sensor. But typically the turbo will Speed Density vs. Before I ask it, let me divulge what's going on with the car and my current situation. I bought a 3in GM maf and translator and had planned on running DSMLINK, but now im reading about ostrich and hearing about speed density …2014-03-13 · I'm mainly planning on running a custom twin air intake, and the MAF placement may become an issue. Benefits: complete freedom of inlet and blow off valve design, removal of probably small restriction, no jerking on lift off with 2013-02-24 · I agree with Grumpy. WRX/STI SPEED DENSITY KIT. The MS3pro can run speed density, mass air flow, alpha-n and blended maps. The PCM requires a MAF DTC to be set to revert into speed density mode. 90's@125+ on a very mild build with that setup. Read the tech article on Fuel Injection Basics, brought to you by the experts at Chevy High Performance Magazine. A year ago that wasnt the case. MAF vs Speed Density Post by jacob_royer » Fri Mar 04, 2005 9:11 am I am wondering from a performance stand point what is the diffrence on stock engines between speed density and MAF on horsepower and tourqe? also are the MAF engines more efficent? Speed density vs MAF - 96 LT1 I have had a MAF and a speed density tune on my lt1 (in my 68 camaro). Again, no E28s came stock with a MAF. Speed density runs on engine vacuum and anything you do to lower vacuum will cause problems. This allows you with the MAF still in place to log VE and make you VE map for Speed Density. Speed Density Sensor Package. This is a discussion on MAF vs Speed Density within the Computer & Tuning forums, part of the LSx Technical Help Section category; What is the advantage of a speed density tune over a MAF? Combustion Engine Tuning Tutorial: Speed Density, Mass Air Flow, Correction Tables All music licensed by Mega Mechatronics for non-exclusive worldwide perpetual use. Maf Wiring Using RomRaider Logger's MAF Tab: start, speed up, slow down, with constant sudden throttle changes, the data collected can skew the results and your MAF scaling A MAF is a "mass flow device. MAF EFI - most efficient/reliable??2004-03-17 · My question is for any of you who have converted your MAF to a speed density system. A typical naturally aspirated engine configuration employs one or the other, whereas forced induction engines typically use both; a MAF sensor on the intake tract pre-turbo and a MAP sensor on the charge pipe leading to the throttle body. 2008-11-10 · Speed Density vs. 2007-02-09 · The engineers designed the average maf to intake ambient temperature air. Turbo Tweak Speed Density, the reason? 20 adjustable parameters, no more MAF sensor. No HP Tuners vs. what changes would that do?, half the people i talked to said yes convert it, gives more room for horsepower, and others said no, waste of …2015-12-02 · If this is your first visit, be sure to check out the FAQ by clicking the link above. This is known as Speed Density (engine speed and density of the air charge). MAP sensor VS. TPS(?) performance & modifications There's really 3 types (well, in general). 2009-10-16 · So if you read my other thread I'm looking for a blow thru maf. A MAP sensor measures the air pressure or vacuum in the intake manifold and the mass of air entering the engine can be calculated from this using the ideal gas law. 1L / 4L80E / 4X4 in a 2001 Silverado. I need to be edumacated please. Speed Density. both methods have flaws and advantages. It has gone 9. which is SD i was planning on getting a bigger tb and the cobra upper and lower intake also. ly/freetuning Come along to our next free LIVE webinar to have your own  Engine Tuning 101 - Part 3 - Speed Density vs. Would it be possible to remap the ecm with a moates system and function with a turbo? turbocharging a speed density Mustang maf instead of using speed density. turbo, exhaust, etc. Want to convert your speed density setup to a mass air meter system? Late Model Restoration carries everything you need to get your motor switched over to a MAF setup. 00. With the 6 individual throttle bodies of the RB26dett, it is harder to put a map sensor in an appropriate location to sense load. As a refresher on speed density diagnostics, ­remember that speed density and mass airflow (MAF) systems react oppositely to air leaks through the intake duct and manifold at closed throttle. The MAF value vs boost pressure indication fall out of mapped value range. COBB Brings Speed Density to 2. There is the empirical observation that a MAP sensor costs about $50, and a modern MAF about $500. maf is failed properly as well. It's more of physical lag as the MAF measures before the air hits the turbo and the MAP measures the pressure in …Off-Road Ecotec Turbo Engines. mass air If this is your first visit, be sure to check out the FAQ by clicking the link above. Namely, a 302 stroker, stock heads, stock intake/TB, mild blower cams, and a single turbo. theturboforums. The inlet air temperature and manifold pressure is measured via a manifold air pressure (MAP) sensor, which allows the ECU to calculate the density of the air present. 2018-02-17 · However, most people don't do a maf conversion because of their poor idle (my speed density seemed to idle fine). 16 Aug 20173 May 20182 May 2010 Forced Induction - MAF or speed density - im doing a turbo ls1 and wondering what is better, a speed density setup or mass airflow sensor i 26 Nov 2015 Thread: Speed Density vs Mass Air Flow It's more of physical lag as the MAF measures before the air hits the turbo and the MAP measures Quick question my dads 89 LX is having issues with the MAF meter he's using Pro-M, we've tried C&L meters in the past and a Granatelli, also My question is "what do you benifit from speed density, vs. 96 was the year of change. precise than speed density or MAF and is therefore generally only found in Maf Delete, Convert To Map M4. Self-test ECU will not register the MAF’s response speed reduction One is the MAF system, second is speed density (SD), third is the alpha-N, and fourth is closed loop. The fueling will be controlled by RPM only. 2009-07-25 · Hi hondata, What is the main diference in the MAF vs MAP fuel tuning. You may have to register before you can post: click the register link above to proceed. Speed Density A MAF sensor isn’t the only way for the ECU to calculate engine load and a common alternative is to use a manifold pressure sensor (MAP sensor) instead. I'm a little curious on blow through maf vs speed density. 2007-01-11 · If your going with blower/turbo stick with the Speed Density. whats the difference? what would be the upside of having maf instead of speed density. The best you can do with speed density is a bigger throttle body and a K&N air filter, some exhaust workand that's about it. So, Which is Better — MAF or Speed Density?. The MAF sensor’s circuitry converts the current reading into a voltage signal for the computer, which in turn equates the voltage value to mass flow. 1 bar MAF It seems like nothings consistant. 0, but not for the 4. MAF = Mass Air Flow and is a sensor that measures the actual air flow going into the engine. This step is a precautionary step to make certain that your vehicle does not use the MAF sensor to calculate fueling while tuning in speed density. With a speed density system, actual intake manifold pressure is now measured using a manifold absolute pressure (MAP) sensor, as well as inlet air temperature (IAT), and in addition to the Ok, still in the research mode for the RB26dett EMS. Normally, the Mass air flow sensor (MAF) is used to do this job but on setups that draw in large amounts of air, or setups that have things like a rotated turbo-charger or a front mounted intercoolers, using the MAF 2008-10-22 · Ok well I guess my original question was not right. MAP is an interesting and ongoing debate, though. Its better to understand each strategy so as to make the most informed decision. Straight up Old Skool, before we had all this aftermarket support. The problems encountered by the MAF system can be improved by running speed density system which eliminates the use of MAF sensor. Honest answer: it depends. 17 pounds per gallon and knowing that there are 454 grams per pound, then dividing the total fuel mass in grams by (454 * 6. 0 intake and explorer TB, but when I put the turbo on I plan on getting a HCI as well. I've been tuning my car for a year now in Speed Density mode and I don't see any disadvantages at all. Volumetric efficiency (VE) is the term used to describe the amount of air an engine is ingesting vs. 2009-12-31 · Speed density is exactly as SER described, it takes manifold pressure, multiplies it by a known constant and then uses intake temperature to determine the density IE Speed Density. All harnesses designed for speed density Mustang, Thunderbird, Cougar, Mark VII, Crown Victoria, Grand Marquis, & Town Car. Don't cut out the stock Mass Air Flow (MAF) plug to convert to Speed Density (SD) in your 2015+ STi Subaru. The one above heats a wire and then measures how much the airflow cools it off so it can determine the air flow. This is a discussion on MAF vs Speed Density within the Computer & Tuning forums, part of the LSx Technical Help Section category; What is the advantage of a speed density tune over a MAF?2007-12-05 · i wasent sure witch section to put this under, but sscince im asking it about a gm running system i thought this was a safe(er) bet, at low boost, say 7-8psi is there a HUGE diff between getting a bigger and more accurate MAF sensor compaired to going with speed density? reason i ask is trying to see if its a must when going with a turbo motor 2017-03-15 · Speed density vs maf. The STM DSM 3" SD Intake Pipe with Vibrant Air Filter is made in-house of lightweight aluminum and is designed for 90-99 DSM running Speed Density without the MAF. Tuned with chrome. MAF Calibration. Initial impressions: WOW! The car is so smooth. It gets better air flow and you don't need an aftermarket cam with a Closed Loop Speed Density vs Open Loop Speed Density In addition, they do have an assortment of super/turbo-charged MAF'ed models as well. 9XV high RPM limits that shut me down with the MAF. You can change intake,heads,and exhaust and have basically no effect on speed density. Obviously the table values themselves will not be the same. 17) yields the total number of gallons of fuel burned for a given amount of air (as measured by the MAF sensor). Running a 1MB ECU don't remember the number, with a segment swapped tune. Mass AirFlow With a speed density system, actual intake manifold pressure is now measured using a manifold absolute pressure (MAP) sensor, as well as inlet air temperature (IAT If we could see a big turbo T5 using the ARD 4. This kit allows you to move the intake air temperature sensor from the factory MAF Housing to the Upper intercooler upper pipe without I've been tuning my car for a year now in Speed Density mode and I don't see any disadvantages at all. Speed Density convert to MAF I have seen twin turbo speed density setups. It is because of this engine load calculation for speed-density engines that the accuracy of the MAP sensor signal is so critical. Like Geoff said, this will make it easier for the computer to compensate for changes without a re-tune. wrp. Plane Old Ben 479,820 viewsAuthor: McCuistianViews: 10KMAF vs. Curious, is there a reason why Speed Density is preferred over MAF outside of not having a meter to deal with? My guess is that there are two schools of thought on MAF vs. 2014-01-14 · I am planning on building a high hp 351w turbo e85 stroker and i cant find a maf sensor that will be compatible with high putput injectors such as 95#. Archived. At the power level of the engine you list the MAF will be a restriction and also pegged. These are the parts I've ordered and are planning to put on: STi Mod List - Grimmspeed EBCS - IAG stage 2 blockWhat's The Difference Between MAF And Speed Density Setups? Mass air flow and speed density are the two most common means of measuring how much air is being sucked into an engine, but what’s the Speed density has been around longer than MAF systems, and use a range of data to calculate airflow. On Monday the FlashPro help files will be available which have more information. I'm running 10. but could be a concern Strengths of Speed-Density. 1L / 4L80E / 4X4 in a 2001 Silverado. Creates turbulance. When you place the maf in a pressurized environment which is heated due to pressurization--I would think that values would be skewed mostly based on air density due to temperature. This is a discussion on MAF vs Speed Density within the Computer & Tuning forums, part of the LSx Technical Help Section category; What is the advantage of a speed density tune over a MAF? Speed density has been around longer than MAF systems, and use a range of data to calculate airflow. A/C On (speed density harness) This wire connects to the "hot" side power to your ac compressor. Combustion Engine Tuning Tutorial: Speed Density, Mass Air Flow, Correction Tables All music licensed by Mega Mechatronics for non-exclusive worldwide perpetual use. Great for big turbo setups to get rid of the MAF Sensor. I work at a ford dealer and mentioned the option of Speed Density so some of the techs and they all said don't do it as all they have seen in ford was problems and since Ford switched to a MAF there drivability complaints have …2013-10-12 · The big difference between the two is that a MAF system reads the actual airflow the motor is takin in. 25" turbo inlet. A speed-density based system is cheaper to produce (in quantity) after the fleet of tuners gets their job done. Followers 0. Speed Density is usually easier to calibrate for high HP combinations than Mass Air, but only because it is far more difficult to build and calibrate a MAF sensor that can for example precisely meter 0-1000 cfm (which would be necessary at or over 1000 hp) while outputting a 0-5v signal which must then have a corresponding calibration factor in the ECM. MAF. 2016-09-29 · The MAF will kick on at 4000RPM + and the speed density will handle everything below. As with most things in life there are advantages and 17 Dec 2007 Im going to be running a 373 stroker ls1 twin turbo and have conflicting opinions over speed density or maf tunning the car is going to be driven 19 Jan 2010 What is the advantage of a speed density tune over a MAF? This is a discussion on MAF vs Speed Density within the Computer & Tuning . Chevy type discussion. 2004-04-02 · MAP(speed density) vs. Car will be running NA this winter, but turbo setup will be installed shortly afterwards. Then flash the ECU with an SD patch (not yet done for the VIII though, just VII and IX so far, VII not yet tested, IX tested and working). There are differences in the tuning but driveability is the MAF vs Speed Density. On stock turbo cars (where the OEM MAF sensor voltage won't max out) The advantage is more for the tuner, as it simplifies the tuning process, because you no longer have to be concerned with trying to dial in multiple base maps with MAF scalars for various intakes, or mess with fuel multiplier speed density As a refresher on speed density diagnostics, ­remember that speed density and mass airflow (MAF) systems react oppositely to air leaks through the …MAF = Mass Air Flow and is a sensor that measures the actual air flow going into the engine. Than buy a whole 1990-1992 TPI system and put it in. On Road Engine Catalog Ive been tuning my 6L80e in my G8 for months now trying to get it to work correctly in speed density, Ive come very close to getting it nearly perfect but every now and then theres always little things the tranny does like flares funny gear changes etc, Really doing my head in. Instead, MCS retained the MAF for monitoring inlet-air temperature only, then extensively recalibrated the GM computer using HP Tuners’ VCM software suite to work under pure speed density Over 20,000 harnesses and computer kits sold to date, with no end in sight!! If you want to conv ert a Sp eed Density engine to a Mass-Air engine, IST’s LOW-COST conversion harness is the answer. What do you guys think? Would speed density be a better idea if I'm slapping a turbo …2014-03-30 · Tuning the Speed Density section on Ford I am tuning a 2007 Ford Mustang GT/CS with a ton of things done. "MASS AIR FLOW"VS "SPEED DENSITY " GM used MAF sensors on the turbo Buick V-6 Grand National, 85-’89 TPI, 94-’98 LT1, 96 LT4, and all LS1 engines. Thread starter 88-GT; Start date Nov 14, 2004; Forums. Disadvantages to tuning with a MAF are: 1. If you want speed Density system you would need to reroute wires in the harness and cut some off. $39. Running a 1MB ECU don't remember the number, with a segment swapped tune. Mass AirFlow With a speed density system, actual intake manifold pressure is now measured using a manifold absolute pressure (MAP) sensor, as well as inlet air temperature (IAT A typical naturally aspirated engine configuration employs one or the other, whereas forced induction engines typically use both; a MAF sensor on the intake tract pre-turbo and a MAP sensor on the charge pipe leading to the throttle body. Select>Abuse Mode Torque Reduction vs. Highly experienced in engine tuning The best you can do with speed density is a bigger throttle body and a K&N air filter, some exhaust workand that's about it. Honestly, IMO, speed density tuning and MAF tuning can provide the same results to the end user. For Blow-Thru and Speed Density Applications For Rotated Turbo Kits If you have a MAF and turbo you will run into those limits. to the ECM to tell it the compressor is on and will step up the idle speed to compensate. I am wondering from a performance stand point what is the diffrence on stock engines between speed density and MAF on horsepower and tourqe? also are the MAF engines more efficent? I know MAF is a million times better if you want to upgrade anything but in stock form whats the diffrences in performance? I know that MAF …Mass air flow sensor equipped cars fuel either directly from or by a blended model of both mass air flow and speed density calculations. Volvo only used that on the Regina/Rex system on the 89-94 740/940 non turbo 230F engines. MAF sensor . Speed density Vs. I think with a idle surge protector you should be sound as a pound. 20+ Years of experience in building, tuning and racing high performance vehicles. Most naturally aspirated The PCM will still set the code for a MAF fault and thus still revert to speed density. 6 turbo So, Which is Better — MAF or Speed Density?. 5. MAF tuning Discussion in 'The Lounge' started by mnypit, Nov 7 Indianapolis, IN. The biggest reason I see to keep the MAF vs speed density is that the MAF is actually measuring the amount of air entering the engine. Mass Air Flow Sensor (MAF) It is intended to be insensitive to the density of the air. " The ECU interprets the cooling of a heated wire element in the MAF to determine the mass flow. There are several different types of MAF sensors but for most 2019-02-26 · I have a question regarding stock MAF vs. Sensor reads actual load so there is no guessing what load level the engine 2010-08-08 · MAF vs Speed Density I am running a 3" GM MAF in draw through but have a MAP and IAT sensor installed and logging so would be just a matter of tuning for me. 2010-07-24 · Mass Air Flow Sensor it measure the mass of air entering the system and is 100% accurate. Dsm link converts a maf signal to speed density and The complete set up for running speed density with ECMLink. While I know there are sophisticated speed-density systems out there, cars Speed Density (MAP) vs. The system is still fairly cheap (if you scrounge you can get everything you need for under $300), it is completely tunable using aftermarket devices (TWEECER is the one I use on my Ford van), and it is a true MAF MAF Translator Pro Speed Density Harness for 1G DSM Eclipse Talon Turbo 90-94. MAF vs SD 06-03-2014, 02:30 PM. This covers the steps involved in converting a speed density Mustang to a MAF Mustang. *This video is for educational Speed Density and a GM MAF do the same thing, provide the ECU with airflow data, but each have a different way of doing it. A large majority of the units on the market today are a Speed Density system. What system did you use? speed density dose not take well to turbo if your Whatever - either speed density versus MAF works like I've outlined and you're intent on arguing a weak position by changing the terms of reference, or DCX has designed the only speed density system that emulates a MAF, and the aftermarket pcm-tuners are snake-oil. Aftermarket head unit only Of the two systems listed the SD is better. 2015-07-15 · Private Pilot Tries To Fly The Airbus A320 | Take Off, Stall and Landing - Duration: 19:44. You can stick one in the main manifo2008-08-27 · Would it be possible to convert my speed density I6 (1992, stock F-150) to a MAF configuration? Ok, I know it's possible, but is is feasible? I've seen MAF …2012-04-15 · Re: Speed density: Using MAF output instead of MAP sensor ou by techsalvager » Sun Apr 15, 2012 3:25 pm it will looks somewhat like maf usage on a ms1 and be just as annoying to tune as a speed density setup. MAF At AFI we deal with this question a lot, "Which is better speed density (SD) or mass air flow (MAF)". 12 products. The oem setup (intake included) doesn't support the power levels most people are looking for. what i am just not seeing as to why this is happening. Speed Density A MAF sensor isn’t the only way for the ECU to calculate engine load and a common alternative is to use a manifold pressure sensor (MAP sensor) instead. In FI apps it seems SD would be the best choice since the MAF is limited in the amount of air that it can meter. Now if you have a 302 you *may* need to change the firing order depending on your truck. Ive been reading the HP Tuners help files and one recommends if you have the 99-2000 OS you should upgrade to the 1 bar speed density OS to make tuning easier. Factory ECM with your combo, MAF all day long A lot more than your combo MAF all day long. Post by jacob_royer » Fri Mar 04, 2005 9:11 am . ly/freetuning Come along to our next free LIVE webinar to have your own questions answered -Author: High Performance AcademyViews: 15KSpeed Density vs MAF - IGOTASTihttps://www. A/C Freon Pressure Switch for Fan (MAF and speed density harnesses) . Off Road Ecotec Adapter Kits & Billet Parts. MAF systems self-correct to various engine combinations and conditions and mods MAP/SD doesn't adapt to different engines or modifications except by changing the chip The stock Chevy TPI 350 engine was also about 300 HP at flywheel 225 - 250 HP as installed in vehicles Would it be possible to convert my speed density I6 (1992, stock F-150) to a MAF configuration? Ok, I know it's possible, but is is feasible? I've seen MAF conversion kits for the 5. MAF - YouTube www. So i thought about going to speed density but people say sd sucks performance wise. The only time I have had a problem was when I drove on a long trip and got over 10k ft elevation, I had a slight stumble in the truck. As airflow is measured from the MAP sensor, turbocharger variations will affect the fuel flow measurement resulting in higher or lower fuel flow. Until you start flowing huge numbers and have to offset MAF scaling to get things tuned right (which can be a disaster), there's no reason to go SD tune Converting a Ford Thunderbird's MAP sensor into a MAF - Hot Rod Magazine. MAF TRANSLATOR GEN 2 MAF ADAPTER ECLIPSE 1G 90-94 DSM. Maf Wiring Wide-Open-Throttle Tuning. No use getting in a pissing match over speed density vs. a MAF sensor. Using an average density of gasoline of 6. Ford has Speed Density VS MAF. LTFT TUNING – A. Maf. With that data, the correct amount of fuel can also be calculated. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Latemodel Restoration is your one stop shop for all of your Mustang mass air meter needs! The mass air meter , or MAF, is an important part of the engine. This package includes both required sensors to convert your Evolution 8/9 to speed density. HP tuners E38/E67 PCM speed Density tuning General Tuning Discussion. Mustang Mass Air Meter . 04-17-2008, 05:11 PM. It sends a 12v signal. MAF systems work very well, are easy to tune and are very reliable with the basic translator and LT1 maf. For Rotated Turbo Kits. It gets better air flow and you don't need an aftermarket cam with a turbo car. Daily Driving Buick V-6 Turbo's 1979 - Present The speed density with Megasquirt is SPEED DENSITY. SD and it's probably a Ford vs. 0L HO Speed Density Cougars/Thunderbirds ONLY. RPM (or MAP/BAP vs. If the afm is too close to the turbo stalling and poor light load driving is the out come. MAF vs Speed Density Post by jacob_royer » Fri Mar 04, 2005 9:11 am I am wondering from a performance stand point what is the diffrence on stock engines between speed density and MAF on horsepower and tourqe? also are the MAF engines more efficent? Speed Density vs. All of my past "performance" vehicles have always been tuned via the MAF. Speed density is exactly as SER described, it takes manifold pressure, multiplies it by a known constant and then uses intake temperature to determine the density IE Speed Density. OE distance from TB

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