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Thread: S/C Bypass Duty Cyle

  1. #1
    Tuner in Training
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    Jul 2008
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    S/C Bypass Duty Cyle

    Just trying to learn something I haven't been able to figure out. Why would my tuner set the S/C bypass duty cycle min to 0% and max to 200%? I'm assuming to hold the boost obviously, but is that really necessary? LT4 iwth just a 2.3 upper no lower.

  2. #2
    Tuner in Training Clutch's Avatar
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    Mar 2019
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    Not sure what he was trying to do. You need 5% min and 95% max to allow for a code to set in case it sticks open or closed.

    Some tuners have a bad habit of maxing things out.
    1997 C5 - 346ci - M6 - custom CAI, ported TB, MAF (ported & descreened), 1-7/8" Lt's, 3"X-pipe, modified stock muffs, 345rwhp before headers/x-pipe

  3. #3
    Tuning Addict
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    It used to be a requirement to get them to build max boost. Probably just carried it over...
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

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  4. #4
    Tuner in Training
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    Jul 2008
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    Makes sense. Thanks guys. My ocd was bugging me on it, lol.