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Thread: tuning 2011 mustang gt

  1. #1
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    tuning 2011 mustang gt

    so this is my first go at ford tuning with hptuners and ill be honest. im kinda lost. lol my friends mods are air intake system and exhaust. fuel trims are wayyyy off and I cant figure out which parameter to change to get them back into check. even when tuning wot on my dyno im having issues with target afr's and timing. im coming from tuning gm's so please forgive my ignorance but any help would be great to get this mustang happy again with its new mods.

  2. #2
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    What kind of intake system is it? Due to the fact that most intakes have a larger intake tube and is the actual housing for the maf, you will need to compensate for the bigger maf "housing". A good starting point is dividing the size of your old maf housing to the new size of your maf housing. Say your old one was a 90mm for example and the new one is 110. You then divide them as 110/90=1.222. You multiply that to the maf transfer. Again, this is just for a starting point and should get you close enough to start dialing in the maf.
    Last edited by Ortiz; 04-18-2014 at 05:11 PM.

  3. #3
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    Its a steeda intake system and its definitely larger. So engine----->airflow----->MAF airflow vs Volume tab is what ill be applying my multiplier to then? this is what makes sense to me. or is there an multiplier that does this without touching that tab?

  4. #4
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    I ordered the software a couple of days ago and it hasn't arrived yet so I haven't been able to see which tabs to go to. Maybe someone who has access to it at this moment like Eric can let you know exactly where to go to and make those changes.

  5. #5
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    lil offtopic, Im not a ford guy but im really impressed with the power these motors are makinging with simple boltons. 428whp with stock cam and cai is something LS guys would dream of. lol

    quick google search shows the steeda intake is a 101mm maf tube.
    Last edited by jfdmas; 04-18-2014 at 05:28 PM.

  6. #6
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    ok. modified maf/voltage scale and it did absolutely nothing to fuel trims. so far ive attempted to modify 5-6 maps and not a single change has accurred to the car. lol and to boot throwing a cel which im assuming is o2 related from fuel trims correcting +50. any help would be greatly appreciated. this has been quite the humbling experience. ha

  7. #7
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    In SCT we make the changes through the Maf Frequency Transfer Function and you multiply the #/min. Maybe this is something that is missing in HPT or named differently, I don't know. I wish I had my software here already

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    hptuners screen shot.jpg

    this is what im looking at.

  9. #9
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    my only experience with SCT is with dodge vipers unfortunately and even that was light years easier to figure out. the main problem im having is having to write entire for every change I make taking 5+ minutes. makes it difficult to try things on the fly.

    hptuners screen shot1.jpg

    none of these do anything in regards to fuel trims. :/ hmmmmmm
    Last edited by jfdmas; 04-19-2014 at 11:14 AM.

  10. #10
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    Can you go into Maf Airflow vs Period and take a screen shot for me please?

    Yup, Eric just confirmed that Maf Airflow vs Period is the inverse of Maf Frequency.
    Last edited by Ortiz; 04-19-2014 at 11:34 AM.

  11. #11
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    That's the one.
    Attached Images Attached Images

  12. #12
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    Give me your email address, I can see what I can do for you to get you going.

  13. #13
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    Quote Originally Posted by Ortiz View Post
    Give me your email address, I can see what I can do for you to get you going.
    jfdmas at yahoo dot com

    thank you Ortiz

    so I need to multiply my 1.12 by frequency vs period as well as my voltage tables?
    Last edited by jfdmas; 04-19-2014 at 04:56 PM.

  14. #14
    HPT Employee Eric@HPTuners's Avatar
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    You only need to modify the MAF Airflow vs. Period.

  15. #15
    Tuner in Training bravo685's Avatar
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    Use the MAF Airflow vs. Period table for tuning. Yes the table is upside down. Just pay attention to the right side column marked AIRFLOW. It's in #/min and on a stock vehicle ranges from 0 - 68.

    You will need a scan tool to check the short term trims but can quickly tune the MAF by holding the car on the dyno in 4 - 6 places in rpm starting with idle and getting an average trim and applying it to the whole table for starters. Then go back and set the table in specific locations. IF the trims are max'd out then you will have to do the first step again. Make sure the engine is at temp or you'll be chasing your tail. AND... change everything else back

    Steeda MAF lb/min (stock intake/throttle body)
    1485 0
    650 0.473800003528595
    635 0.501399993896484
    605 0.541649997234344
    590 0.568099975585938
    540 0.666999995708466
    500 0.770500004291534
    450 0.983250021934509
    410 1.19599997997284
    360 1.70200002193451
    330 2.16199994087219
    320 2.29999995231628
    290 3.01299977302551
    275 3.51899981498718
    259 4.08249998092651
    242 4.8299994468689
    226 5.8597674369812
    220 6.29645681381226
    215.5 6.55772542953491
    210 7.01546001434326
    207 7.2883620262146
    200 7.90578413009644
    193 8.74631977081299
    188 9.25332164764404
    183.5 9.88822269439697
    178 10.9280033111572
    173 11.9484996795654
    160.5 14.9499998092651
    150 18.8599987030029
    143.5 20.6999988555908
    139 22.5806865692139
    136 24.0044193267822
    132 26.3388404846191
    128 29.5371055603027
    123 32.9985122680664
    119.8 34.890998840332
    114 39.9280014038086
    107 47.5375518798828
    101 55.3034973144531
    83.3 78.1999969482422
    Last edited by bravo685; 04-19-2014 at 08:17 PM.

  16. #16
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    I cannot seem to find the MAF airflow vs. Period Table in this file

    Quote Originally Posted by bravo685 View Post
    Use the MAF Airflow vs. Period table for tuning. Yes the table is upside down. Just pay attention to the right side column marked AIRFLOW. It's in #/min and on a stock vehicle ranges from 0 - 68.

    You will need a scan tool to check the short term trims but can quickly tune the MAF by holding the car on the dyno in 4 - 6 places in rpm starting with idle and getting an average trim and applying it to the whole table for starters. Then go back and set the table in specific locations. IF the trims are max'd out then you will have to do the first step again. Make sure the engine is at temp or you'll be chasing your tail. AND... change everything else back

    Steeda MAF lb/min (stock intake/throttle body)
    1485 0
    650 0.473800003528595
    635 0.501399993896484
    605 0.541649997234344
    590 0.568099975585938
    540 0.666999995708466
    500 0.770500004291534
    450 0.983250021934509
    410 1.19599997997284
    360 1.70200002193451
    330 2.16199994087219
    320 2.29999995231628
    290 3.01299977302551
    275 3.51899981498718
    259 4.08249998092651
    242 4.8299994468689
    226 5.8597674369812
    220 6.29645681381226
    215.5 6.55772542953491
    210 7.01546001434326
    207 7.2883620262146
    200 7.90578413009644
    193 8.74631977081299
    188 9.25332164764404
    183.5 9.88822269439697
    178 10.9280033111572
    173 11.9484996795654
    160.5 14.9499998092651
    150 18.8599987030029
    143.5 20.6999988555908
    139 22.5806865692139
    136 24.0044193267822
    132 26.3388404846191
    128 29.5371055603027
    123 32.9985122680664
    119.8 34.890998840332
    114 39.9280014038086
    107 47.5375518798828
    101 55.3034973144531
    83.3 78.1999969482422
    Attached Files Attached Files

  17. #17
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    I dont seem to find the MAF aiflow vs. Period table on the file attached. Any help would be appreciated.





    Quote Originally Posted by bravo685 View Post
    Use the MAF Airflow vs. Period table for tuning. Yes the table is upside down. Just pay attention to the right side column marked AIRFLOW. It's in #/min and on a stock vehicle ranges from 0 - 68.

    You will need a scan tool to check the short term trims but can quickly tune the MAF by holding the car on the dyno in 4 - 6 places in rpm starting with idle and getting an average trim and applying it to the whole table for starters. Then go back and set the table in specific locations. IF the trims are max'd out then you will have to do the first step again. Make sure the engine is at temp or you'll be chasing your tail. AND... change everything else back

    Steeda MAF lb/min (stock intake/throttle body)
    1485 0
    650 0.473800003528595
    635 0.501399993896484
    605 0.541649997234344
    590 0.568099975585938
    540 0.666999995708466
    500 0.770500004291534
    450 0.983250021934509
    410 1.19599997997284
    360 1.70200002193451
    330 2.16199994087219
    320 2.29999995231628
    290 3.01299977302551
    275 3.51899981498718
    259 4.08249998092651
    242 4.8299994468689
    226 5.8597674369812
    220 6.29645681381226
    215.5 6.55772542953491
    210 7.01546001434326
    207 7.2883620262146
    200 7.90578413009644
    193 8.74631977081299
    188 9.25332164764404
    183.5 9.88822269439697
    178 10.9280033111572
    173 11.9484996795654
    160.5 14.9499998092651
    150 18.8599987030029
    143.5 20.6999988555908
    139 22.5806865692139
    136 24.0044193267822
    132 26.3388404846191
    128 29.5371055603027
    123 32.9985122680664
    119.8 34.890998840332
    114 39.9280014038086
    107 47.5375518798828
    101 55.3034973144531
    83.3 78.1999969482422
    Attached Files Attached Files

  18. #18
    What year is the Raptor? It might not have a digital MAF. If not, MAF Airflow vs Voltage is what you want to use.
    Last edited by Blazin72; 09-07-2014 at 05:07 PM.

  19. #19
    Senior Tuner SultanHassanMasTuning's Avatar
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    you need to work on your MAF transfer table that is under MAF Calibration>Airflow vs Voltage.

    Quote Originally Posted by AhmadKDaham View Post
    I dont seem to find the MAF aiflow vs. Period table on the file attached. Any help would be appreciated.
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  20. #20
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    Even after increasing the Maf scaling , it will still go back to 14.4 , Whatever increase I do . and the commanded Lamba is 0.85 .




    Quote Originally Posted by SultanHassanMasTuning View Post
    you need to work on your MAF transfer table that is under MAF Calibration>Airflow vs Voltage.