Anyone Running Solid Roller Lifters???
Club Member
Joined: Mar 2009
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From: Niles Canyon Ca.
Maybe in the automotive world, ours live or die by the rollers.
Seasoned HDF Member
Joined: Dec 2005
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From: poway
FWIW on the 2 cams shown, You likely won't see a difference in the 2 cam lobe unless you have indicator eyeballs.. I'd bet the duration between those 2 cams is quite a bit different.. The difference is going to be the ramps. The ramp is usually something larger than a hydraulic lifter to account for aluminum air cooled cylinder / case growth. Most TC cams are 0.005-8 on ramps. A solid is likely 0.015 to 0.030 (haven't run any), It's right at the beginning / ending of the lift.. What is interesting is that the solid tappet cam looks to have some mark in it.. Like maybe it was modified or lash run too loose?
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Joined: Aug 2008
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there is plenty of info on the net. i have a write up but cannot find it but is posted on another forum. forget about heat growth as the hydraulic compensates still even with the spacers. a big plus is the pump up and collapse.
it is in the ramp up and down. maybe i can find it on the other forum and transpose to here. now if you alter the timing from straight up, the effect is more pronounced. i run a slight retard to push the power band up about 500 rpm as i run the high speed end, as far as power increase, not much to be had.
it is in the ramp up and down. maybe i can find it on the other forum and transpose to here. now if you alter the timing from straight up, the effect is more pronounced. i run a slight retard to push the power band up about 500 rpm as i run the high speed end, as far as power increase, not much to be had.
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