Thread: st5 cam

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  1. #1 st5 cam 
    GT Level Member jrb1027's Avatar
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    Anyone have a bin file for turbo st5 cam? The fuel trims wont settle down, and I also cant get it to idle cold without holding the pedal for a few seconds. I'm using a north star t/b only bc its the only tb i have that can adapt to l26 intake. I adjusted the throttle screw ( as far as a could with maintaining 30-50 warm) but the iac still maxes out and cant maintain rpm, once the engine is warm the iac sets at 30ish like normal.
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  3. #2 Re: st5 cam 
    GTP Level Member buck531's Avatar
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    Did you use the IAC for the N* or use your Lwhatever IAC? They are different. If you didn't you'll either need to swap the pig tail connectors or get the zzp iac > N* adapter.
    03 GS - SSAC, AEM wb, PT,SR rockers, Gen 3, 3.4, dynotech trans w/ 3.29's.

    87 Fiero GT. L67 Swap. XP, ported heads/sc. N* TB, FSIC, 2.8, 12.018 @ 113 1.71 60'.
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  4. #3 Re: st5 cam 
    GT Level Member jrb1027's Avatar
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    1011
    Yea its the right iac and harness. Im borrowing this tb and adapter from my fiero and it works fine for it.
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  5. #4 Re: st5 cam 
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    Have you raised the idle at all? The st5 is a pretty big cam.
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  6. #5 Re: st5 cam 
    GT Level Member jrb1027's Avatar
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    1011
    Yea its at 950-1000. Like i said before the iac maxes out but its not enof to keep it running at cold idle. I could try increasing the throttle plate screw, but iac is already sitting at 30 when warmed up.
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  7. #6 Re: st5 cam 
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    Hey neighbor,
    Have you had any luck with this? I am trying to help a friend with a st5 turbo build as well.
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  8. #7 Re: st5 cam 
    GT Level Member jrb1027's Avatar
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    Hey, its coming along but not done tuning. Ill be putting the l67 tb back on tonight since I have an adapter now. This should fix the idle.
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  9. #8 Re: st5 cam 
    GT Level Member jrb1027's Avatar
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    The tb swap fixed the issue
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