Mid throttle knock at 2500-3000
#1
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Location: Sunnyvale, CA
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Mid throttle knock at 2500-3000
Ok... I've been logging when I drive to work and I've seen knock in the 2500-3000 under the 70-90kpa load range. The knock is about 2-5. I'm one of the lucky ones that get to run 91oct gas. ": (
I've pulled a degree of timing from these cells and the surrounding cells to try to reduce/eliminate this.
Anyone else seeing this???
dWiGhT
I've pulled a degree of timing from these cells and the surrounding cells to try to reduce/eliminate this.
Anyone else seeing this???
dWiGhT
#2
Sure you don't have a valve problem? I had a similar problem before only at a certain RPM and it turned out to be a hole in the #4 exhaust valve (too hot), was a Starion Motor though
#5
I see a similar thing at partial throttle around those loads but at WOT its fine so I quit worrying about it. Try logging a couple of WOT pulls from 2.5 - Redline, that will paint a much better picture of what needs to be tweaked. BTW, I am running 92oct on a stock 9.
#7
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ya just keep taking out 1 at a time until it disapears. Or just decrease your open loop low load throttle map so you go into open loop at part throttle.
I would try decreasing timing first.
I would try decreasing timing first.
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