Quote:
Originally Posted by pjburges
I heard somewhere that the 968 cams had less teeth on the sprockets? I believe 13 teeth? Even if the tensioner is deflecting the chain on the return (top) side...it should still advance the intake relative to the exhaust...
But yeah Im imagining that below 3000 RPM the chain may pick up a harmonic because the load (valve springs) are pulsed on off and this may cause the chain to slap requiring the damping action of the oil tube. Drive above 3K and apparently we dont even need this tenisoner....?
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On a race car you would pretty much always be above 3000RPM on a daily driver you do have a lot more stops and starts. I dont know that this modification is good or bad but I wouldn't necessarily say that if it works on a race car it should work on the street.