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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > ECU Tuning & Performance Electronics > Cobb Street Tuner


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Old 01-25-2007, 08:09 PM   #1
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Default street tuner says im knocking??

so st says im knocking at 3k at .07 and 3800 at .20 what am i doing wrong all i have done is installed a gruppe-s header, helix up and dp, and i am running the stage 2 st map 93oct what do i need to do??


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Old 01-25-2007, 10:39 PM   #2
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Sounds like you need to do some reading on how to tune a car!
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Old 01-26-2007, 05:16 AM   #3
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Quote:
Originally Posted by thekrazyasian
so st says im knocking at 3k at .07 and 3800 at .20 what am i doing wrong all i have done is installed a gruppe-s header, helix up and dp, and i am running the stage 2 st map 93oct what do i need to do??
Well first look at your data logs. Take the engine load write it down then the RPM and do the same. Now open your ST go to the Primary Ignition Page look for the load then the RPM and lower the ignition timing were these two meet. Go out again run the car and check the results. If you still see kncok repeat the same untill the knock is completely gone. Offcourse this is just the simple version but you should also check you Knock Correction, and Dynamic Advance tables. Be carefull about knock you could kill your engine.
I hope this helps you.


Marcos


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