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Thread: EEC tuning with Moates QH.

  1. #21
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    I guess the mac part #s are CT1 and CT6. Sorry for the mixup. http://shop.macperformance.com/MAC-F...ter-MA7386.htm
    1988 Thunderbird 5.0
    GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, 3.73 LSD, BBK 1 5/8 unequal headers, H-Pipe.

    88 Thunderbird/Cougar EVTM
    (Thanks to Trinom for hosting)

  2. #22
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    From my continuing email exchanges with Brian of Fiveology Racing:
    Mike,

    I did confirm with your original order that you should have received a 73mm housing calibrated for 30lb injectors. I only made reference to our 70mm housing to illustrate the use of the F2VF-AA in lue of the F1ZF-AA sensor. Both sensors can be used, each requiring a different calibration tube regardless of the aftermarket housing diameter, to account for the OEM calibration variations between the 55mm and 70mm housings. Therefore you should have received a "CT9" tube with your 73mm housing using F2VF-AA. If it is a "CT9" it should have a dot underneath the number to differentiate from a "CT6". If there is no dot present then the housing was labeled incorrectly. A "CT6" is a 30lb calibration for the F1ZF-AA sensor, which might explain the issues you have experienced using it with the F2VF-AA sensor. I can send you a "CT9" tube if you like. The "CT1" calibration tube you purchased from MAC is not compatible with F2VF-AA. If you want to ensure the mass air meter is set to the factory transfer function using a 19lb calibration you need to obtain a "CT3". Please let me know if I can assist you further

    And my reply:

    Thank you very much, Brian, that is the single most useful collection of information I have read since I started this last week. My calibration tube does indeed NOT have a dot anyplace near the number which appears to be 6 when oriented the same as my CT1 tube. The 1 stamping has a characteristic "base" at the bottom and "flag" at the top similar to the times new roman font, which leads me to believe I'm an viewing the other tube correctly. This answers every question. I gladly accept your offer to send me a CT9 calibration tube. Do you have my shipping info from my previous order? If so, I'm in the same place. You have been incredibly helpful.

    I'll report back when I have something to add. I should have an F1ZF-AA showing up as well, So I should be able to try it both ways.
    1988 Thunderbird 5.0
    GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, 3.73 LSD, BBK 1 5/8 unequal headers, H-Pipe.

    88 Thunderbird/Cougar EVTM
    (Thanks to Trinom for hosting)

  3. #23
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    That's what I've been saying, with C&L part numbers.

  4. #24
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    If you want the car to run correctly with 30lb injectors and the 73mm MAF you have you need to set it up as follows:

    73mm MAF
    CT6 tube
    F1VF sensor
    K&N RE0920 conical filter clamped directly to the end of the MAF

    That is how that particular setup is designed to run. A C&L MAF (or any imitation of it, IE a MAC MAF) is designed so that 30lb and larger injectors require a conical filter clamped directly to the end of the MAF ONLY. You can not use a stock airbox in that situation unless you tune for it. The 19lb calibration is for a stock airbox, there are two different 24lb calibrations depending on whether a stock airbox or conical filter is used as well. See here for more information: http://www.cnlperformance.com/MAF_info.php?section=15
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

  5. #25
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    Option 2 would be

    73mm MAF
    CT1 tube
    F1FV Sensor
    Stock Induction
    Use actual 30lb injector slopes

    Option 3

    73mm MAF
    CT9 tube
    F2VF Sensor
    Conical Filter
    Use 19 lb injector slopes, scaled to account for 30 lb differences
    Scale displacement (30/19)

  6. #26
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    My plan is to try each option 2 and 3. I really want to run the CT1 (which I have) with a F1ZF-AA (which is coming) with the 30lb slopes (which I have). Alternately, a CT9 is coming, which will allow me to try the F2VF-AA with it and the breakpoint for the 30lb injectors, but the 19lb slopes. I'd rather run the CT1 and the F1ZF-AA with the 30lb slopes, etc. Reason being is that this way, load should calculate correctly on its own and I don't have to screw with it. This setup should also bring me the best running tune, potentially better than I've had yet since getting the new build running last summer, later I can get wide-bands and fine-tune.

    Interesting side note: turns out the factory digital tach is not only inaccurate (as we all knew already), but it's REALLY FUCKING INACCURATE. at 70MPH it registers 3200RPM for me, Tunerpro RT has the EEC reporting 2100RPM I got the car with a non standard diff ratio that I always figured (based on the tach) was 3.73:1, it's not. It's 3.27:1, because the digital tach is SUPER EXTRA DREAMWORLD FUCKED UP INACCURATE.
    1988 Thunderbird 5.0
    GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, 3.73 LSD, BBK 1 5/8 unequal headers, H-Pipe.

    88 Thunderbird/Cougar EVTM
    (Thanks to Trinom for hosting)

  7. #27
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    Quote Originally Posted by TheFoeYouKnow View Post
    Interesting side note: turns out the factory digital tach is not only inaccurate (as we all knew already), but it's REALLY FUCKING INACCURATE. at 70MPH it registers 3200RPM for me, Tunerpro RT has the EEC reporting 2100RPM I got the car with a non standard diff ratio that I always figured (based on the tach) was 3.73:1, it's not. It's 3.27:1, because the digital tach is SUPER EXTRA DREAMWORLD FUCKED UP INACCURATE.
    Could have told you that: http://www.foxtbirdcougarforums.com/...ate&highlight=
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

  8. #28
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    There's got to be a way to fix it, all I'm saying. Like a pulse selection jumper, or an IC to replace, or something.
    1988 Thunderbird 5.0
    GT40P, TFS-1, KB domes, 30#, MAF conversion, Explorer GT40 Upper/Lower, Smog delete, Wide Ratio AOD Mod, Unlocked Speedo, 3G Charging System Upgrade, Hi-Torque Mini Starter, 3.73 LSD, BBK 1 5/8 unequal headers, H-Pipe.

    88 Thunderbird/Cougar EVTM
    (Thanks to Trinom for hosting)

  9. #29
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    On my cars with digi dash and 2:73 gears, they always read 1600Rpm's at 65 and 1800 at 75mph. Seems about right to me?
    Quote Originally Posted by jcassity
    I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
    Hooligans!
    1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
    1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
    1986 cougar.
    lilsammywasapunkrocker@yahoo.com

  10. #30
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    Quote Originally Posted by TheFoeYouKnow View Post
    There's got to be a way to fix it, all I'm saying. Like a pulse selection jumper, or an IC to replace, or something.
    If you figure out what it is let me know. I'd love to make the one in my car more accurate.
    '88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, Edelbrock 70mm TB, 76mm C&L MAF, 30lb injectors, 2.5" exhaust, AOD with 2800 PI converter, 8.8 with 3.73 gears, 31 spline Traction-Lok, 31 spline Moser axles, 04 Cobra front arms, Maximum Motorsports extreme duty rear arms, subframes.
    '11 Focus, '12 Mustang 3.7, '17 Accord EX-L V6

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