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      07-27-2009, 06:51 PM   #78

Drives: BMW
Join Date: Nov 2008
Location: hometown

Posts: 2,563
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Originally Posted by View Post
On the second issue, timing drops not being indicative of "knock retard". I haven't put together much data on it as it's a complex issue. But here are a couple examples. Here are two V3 "Stage 3" run files. One with 100% CPS, one with 50% CPS. Both indicate sudden timing drops. If this was actual knock, power output should dramatically drop, yet the accompanying dyno charts for each look impressively smooth. These sudden timing drops don't appear to indicate knock at all.

That's an interesting point.

Do you think the timing spikes might be related to climbing IAT's?

I tended to notice such a correlation in my logs.