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Thread: Tuning 90 AOD

  1. #1
    Join Date
    Dec 2002
    Location
    Omaha Nebraska
    Posts
    553

    Tuning 90 AOD

    Following the excellent guidance the on the forums for years, I finally picked up some hardware and software. Looking forward to the challenge. I absolutely welcome comments and input, will do my best to refrain from melting pistons and throwing rods.

    And if anyone is looking for some side $$$, I'm open to your advertising and assistance. I really don't want to do something stupid.

    JJ
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  2. #2
    Join Date
    Apr 2002
    Location
    Greenville, IN
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    4,220
    Congrats man!

    If you take your time and learn it, it may be the most rewarding thing you have ever bought for your SC.
    Matt Haub
    Shootouts: '09 SS 1st | '10 Mod1 2nd | '11 Bracket 3rd | '12 Bracket 1st | 2013 | '14 Bracket 3rd | 2015 | '16 Bracket 1st & Mod2 2nd | 2017 |
    Black '89 5spd - 281K miles, MPx, E85, Alky-Inj RWHP: ? RWTQ: ? Best 1/4mi:12.521, MPH:107.23mph
    35th Anniversary Auto 46k miles | Red '93 Auto 186k miles
    My Garage

  3. #3
    Join Date
    Dec 2002
    Location
    Omaha Nebraska
    Posts
    553

    Strategies

    First issue, finding the strategy. Sounds like Fturner, Sailor Bob, and Maybe XR7Dave may have them. Figured I would put this up here for anyone else getting in.

    Strategy: 90' auto= GURE
    BIN= C0S

    Among many free strategies, the GURE isn't one of them. Can any of you guys help me out? I understand these aren't free.
    Sending PM's.

    Thanks,
    JJ

  4. #4
    Join Date
    Apr 2002
    Location
    Greenville, IN
    Posts
    4,220
    Yep...need to contact David Dalke (XR7Dave)
    Matt Haub
    Shootouts: '09 SS 1st | '10 Mod1 2nd | '11 Bracket 3rd | '12 Bracket 1st | 2013 | '14 Bracket 3rd | 2015 | '16 Bracket 1st & Mod2 2nd | 2017 |
    Black '89 5spd - 281K miles, MPx, E85, Alky-Inj RWHP: ? RWTQ: ? Best 1/4mi:12.521, MPH:107.23mph
    35th Anniversary Auto 46k miles | Red '93 Auto 186k miles
    My Garage

  5. #5
    Join Date
    Dec 2002
    Location
    Omaha Nebraska
    Posts
    553
    David and the guys at PAS, and EEC analyzer.net got me up and running. Had a couple minor issues, David got me the factory tune details and then I had to install USB drivers for the QH. Did my first datalog last night, this stuff is great!!!

    Played with the idle and fan speed settings, this thing is extremely cool. For anyone getting into this, signing up for eectuning.net is an absolute must, ton of good info there. There's still excellent support for tuning between numerous websites and forum members.

    My short term goal is to give it more midrange fuel or reduce timing, engine pings under heavy midrange load. It's nice to learn something new, this has been on my bucket list since the early 2000's. Thanks to everyone that has helped!!!

    JJ

  6. #6
    Join Date
    Apr 2002
    Location
    Greenville, IN
    Posts
    4,220
    Cool! It's a great feeling.

    FEELING the changes you make is pretty awesome too.
    Matt Haub
    Shootouts: '09 SS 1st | '10 Mod1 2nd | '11 Bracket 3rd | '12 Bracket 1st | 2013 | '14 Bracket 3rd | 2015 | '16 Bracket 1st & Mod2 2nd | 2017 |
    Black '89 5spd - 281K miles, MPx, E85, Alky-Inj RWHP: ? RWTQ: ? Best 1/4mi:12.521, MPH:107.23mph
    35th Anniversary Auto 46k miles | Red '93 Auto 186k miles
    My Garage

  7. #7
    Join Date
    Dec 2002
    Location
    Omaha Nebraska
    Posts
    553
    Maybe I should start another thread. Coming along nicely. Played with idle and fan settings, starting to get an understanding. Moving on to the goal: tune to prevent detonation/pinging.

    In my research it appears that the first major steps are injector and maf settings. Starting with injectors because they are not original. Late model ford 36lb are installed. The ecu needs to know what it has to work with right???

    I found injector slopes and breakpoints for these injectors on efituning.com. When entering the values in BE many of them round to another close number. The low (which I think is the bigger number) seemed to have a max value defined, I couldn't get it to go all the way to my exact number. Is this normal? I'll plug in the change and run tomorrow, see what happens. The final slope has a very close shape to the original cal.

    Thanks,
    JJ

  8. #8
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,532
    Your EEC operates in hexidecimal but your GUI is in decimal, so every number you see is subject to conversion. They will rarely be exact.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  9. #9
    Join Date
    Dec 2002
    Location
    Omaha Nebraska
    Posts
    553
    Ok thanks, I did see some discussion on those numbers but never saw an explanation. Drove the car today, afr's were substantially better but didn't datalog. AFR down to about 15 idle from 16-17. Consistent 12-high 11's with high load. Still had a very slight ping but nowhere near as bad which is awesome. Moving on to maf curve. I've read a lot of decipha's posts on tuning with LAMBESE.

    JJ

  10. #10
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,532
    You don't tune part throttle looking at AFR, you should be looking only at fuel trims. Full throttle or anytime open loop actual AFR needs to match commanded. No excuse for accepting anything else! lol

    Consider +/- 5% on fuel trims to be goal for now, and open loop AFR within 0.2 +/- as a starting point.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  11. #11
    Join Date
    Dec 2002
    Location
    Omaha Nebraska
    Posts
    553
    Ok thanks David, I just saw your response as I came back to post a pull. Learning boat loads every day. Played with MAF transfer, I can definitely see the car respond to AFR at WOT, but this is all by recollection. Made my first pull through the first 3 gears today and wanted to post results. I downloaded the innovate software today but didn't log yet.

    1st gear is crap, no traction, as you all know she wont hit OD at WOT, so we have 2nd & 3rd. I'm mainly focusing on WOT since the engine has all of the add ons for air. Late blower, pulley, double IC, etc. Want to be sure the injectors and pump are keeping up.

    I'm thinking we want to watch LAMBSE correct? How am I doing so far?

    Moving on to trims next. Any complaints keeping this thread alive? Considering taking this over to the EEC forum if I'm posting too much junk.

    Thanks,
    JJ
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  12. #12
    Join Date
    Apr 2002
    Location
    Madison, Ohio
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    Pictures are worthless, you'd need to post the .csv file for anyone to comment.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  13. #13
    Join Date
    Feb 2013
    Location
    Custar, Ohio
    Posts
    151
    be sure you read the these if you haven't yet, first 2 decipha gives info about these SCs and on tuning them

    http://forum.efidynotuning.com/viewforum.php?f=6
    Last edited by 90tbird4.7l; 07-19-2017 at 12:42 AM.

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