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Thread: 383 hot cam

  1. #1
    Carb and Points!
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    383 hot cam

    Help! Need a good place to start on this 383. 10:1 230 @ .050" lunati cam, 2.02 heads stock tbi manifold and t-body. Just need to have idle on it's own then go from there. Set iac 255. Adjust timing back and forth. Still loads up. Even with e adjustments. Thanks.

  2. #2
    Super Moderator dave w's Avatar
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    I'm curious to learn more about the EFI System and ECM / PCM your using.

  3. #3
    Carb and Points!
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    1994 c1500 350/4l60e 16196397 ecm 15 psi fuel pressure. Thanks DaveW I've read a lot of your threads.

  4. #4
    Super Moderator dave w's Avatar
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    Quote Originally Posted by larry c View Post
    1994 c1500 350/4l60e 16196397 ecm 15 psi fuel pressure. Thanks DaveW I've read a lot of your threads.
    Something doesn't seem correct about PCM #16196397??? http://www.gearhead-efi.com/Fuel-Inj...rmation-P66-V6

    Perhaps PCM #16196395??? http://www.gearhead-efi.com/Fuel-Inj...Information-OE

  5. #5
    Carb and Points!
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    Yes 16196395 OD mask

  6. #6
    Super Moderator dave w's Avatar
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    Quote Originally Posted by larry c View Post
    Yes 16196395 OD mask
    Please post a TunerPro RT data log, and the .bin file used to record the data log.

  7. #7
    Fuel Injected! PlayingWithTBI's Avatar
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    Quote Originally Posted by larry c View Post
    Help! Need a good place to start on this 383. 10:1 230 @ .050" lunati cam, 2.02 heads stock tbi manifold and t-body. Just need to have idle on it's own then go from there. Set iac 255. Adjust timing back and forth. Still loads up. Even with e adjustments. Thanks.
    I'm gonna watch this thread - I have a Blue Print 377 (4.000" X 3.75") with a Comp Cams XR282HR (230/236 @0.050") short block we just dropped in my 88. Hopefully we'll get her running next weekend. My Edelbrock 3704 intake was bored to 48mm with the TB bored to 46mm. Previously I was running 20 PSI with 61Lb/Hr injectors. I was thinking I may have to go with bigger ones.

    One question and I'll get out of the way
    What do you mean by "loads up"?

    Good luck with your project
    Last edited by PlayingWithTBI; 03-20-2023 at 02:06 AM.

  8. #8
    Carb and Points!
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    Loads up at idle as too rich then stalls. I will work on a data log.

  9. #9
    Fuel Injected! PlayingWithTBI's Avatar
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    Quote Originally Posted by larry c View Post
    Loads up at idle as too rich then stalls
    Maybe you pinched an O-ring on one of the injectors? You can shine a flashlight down behind the injector, while running, and look for an even spray cone with no drips.

  10. #10
    Fuel Injected!
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    Going to watch this one

  11. #11
    Carb and Points!
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    No log yet. Having pc issues. When the idle drops map rises contributing to the over rich condition. When i adjust idle ve table it seems good for a minute then will hardly run. Next post I will have a data log. Thanks.

  12. #12
    Super Moderator dave w's Avatar
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    Quote Originally Posted by larry c View Post
    No log yet. Having pc issues. When the idle drops map rises contributing to the over rich condition. When i adjust idle ve table it seems good for a minute then will hardly run. Next post I will have a data log. Thanks.
    Log with Air Fuel Ratios (AFR) would be awesome.

    Post showing AFR tuning, post #26: http://www.gearhead-efi.com/Fuel-Inj...eadsheet/page2

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