Comp R lifters

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Jan 5, 2010 | 11:03 AM

gorace

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Comp R lifters

Just wondering what preload you guys are running on these lifters I know comp says .002 to .004. What happens if I run the .060 that I normally run on ls1 lifters on these??

Jan 5, 2010 | 10:06 PM

gorace

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Jan 6, 2010 | 04:27 AM

rsz288

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Quote:

Originally Posted by gorace

Just wondering what preload you guys are running on these lifters I know comp says .002 to .004. What happens if I run the .060 that I normally run on ls1 lifters on these??

Dont think you could run 0.060 if you tried. They are designed to limit plunger travel to a total of 0.010 or so IIRC, and thereby prevent excessive leak down or "collapse" at high rpm/high lift/high spring pressures.

0.060 on a factory lifter is simply a spec for the long term so that the lifter can see out 200,000 miles without running out of "adjustment" and also cater for temperature extremes from -40 to 250F.

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