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Thread: 2006 C6 Idle Question

  1. #1
    Advanced Tuner TheDastardlyDuo's Avatar
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    2006 C6 Idle Question

    In my research on this site, I think I need a hole drilled in the throttle body. I get a nice idle at about 950rpm, with the ETC @ 11%. There is a slight hesitation when the throttle is cracked, I assume it is due to the ETC position being greater than 9%. If that is the case what size hole will need to be drilled?
    Car is a 2006 Auto C6 with Cam, full exhuast, ProCharger, and 3600rpm converter. I have posted a log of the of the car idling if needed, as well as the tune file.


    Mike
    Have a few thousand files I can share. I'm not on here often so please email me. [email protected]

  2. #2
    Tuning Addict WS6FirebirdTA00's Avatar
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    If it is that high I am sure that can cause some issues. Most of the hesitation I have seen is due to fueling though. Get the TPS strait and then make sure the fueling is ok. I am not too sure on the ETC details but I would imagine you would want to get it to about 5-6%
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  3. #3
    Advanced Tuner TheDastardlyDuo's Avatar
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    The ETC is set to allow a min of 8%, so it is already less than the 11%. So how do I lower it through the computer more than that?
    Have a few thousand files I can share. I'm not on here often so please email me. [email protected]

  4. #4
    Tuning Addict WS6FirebirdTA00's Avatar
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    I may have confused you, but I was agreeing with your haivng to drill the blade out. I would start out with a small bit and work your way up just so you dont go too big.
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB

  5. #5
    Advanced Tuner TheDastardlyDuo's Avatar
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    There lies the problem, should the first hole be something like a 3/64 or bigger like a 1/8?
    Have a few thousand files I can share. I'm not on here often so please email me. [email protected]

  6. #6
    Tuning Addict WS6FirebirdTA00's Avatar
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    I would go with like 1/16 just to see what it does, if it barely moves it or doesnt at all (which I doubt) go to 1/8. May take longer that way but saves you from going too far. Do it when the car is hot so you can start it up, let it idle 5 min, and check the tps
    Sulski Performance Tuning
    2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
    2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB