Knock sensor taking away timing?

quick35th

Registered User
This was discused a few weeks ago but I never quiet understood. I cant remember who it was but they said with a 10% pulley at 3K rpm the knock sensor started to retard timing. They found this out wile on a dyno. My question is how can you tell if the knock sensor is taking timing away? I have current dyno charts and graphs of my car and wandered if anyone could help me out so I could decide weather or not I should swap to the 5%? Also they said that an intercooler fan and a double intercooler fixed the problem. Would just the intercooler fan fix the problem?

Thanks!
Shane
 
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