Quote:
Originally Posted by arghx7
Most engines have some variation between cylinders on knock limit. You can see it with combustion pressure sensors. A lot of it is due to individual differences in air and coolant temperatures or flow that are basically unavoidable.
If you're on E85 or race fuel it might make sense to change those compensations because you may never knock much at those speeds and loads. But on pump gas--do you really want to run spark harder there? You might pick up power from zeroing out the compensations, but you're probably knocking the engine harder. Knock occurs at different levels of severity, rather than a "well it's knocking or it's not knocking" kind of deal. Changing components like exhaust might help reduce knock sensitivity for those cylinders on pump gas, or it might not.
And the knock control system is unreliable at that high of speed--there's too much noise. So I wouldn't go off that. The guys who made those tables probably dialed them in in a lab somewhere.
Are you really sweating those extra couple degrees of timing?
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When i saw last post arghx7 got excited knowing I was going to read and learn something new.
F*cking walking library....
