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Using Solid Lifters on a Hydraulic Cam???

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Old 07-30-2006, 01:01 PM
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Default Using Solid Lifters on a Hydraulic Cam???

I have a big hydraulic camshaft with durations and lifts that appear to the the same as a moderate solid roller cam. Could I use solid roller lifters on this cam? I know a smaller lash is required, so what would that be? I also know that the ramps on this cam is not as aggressive as a real solid roller cam, but atleast I won't be changing valvesprings too often. I rather have people who know what there talking about to answer this.
Old 07-30-2006, 02:37 PM
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I wouldn't recommend it, most solid roller cams are billet steel due to the extra shock of the solid lifters and the valvetrain I don't think a hyd. cam can take it.
Old 07-30-2006, 02:44 PM
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in short, no
Old 07-30-2006, 07:50 PM
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There are some cam designs that will work with both a solid or a hydr roller, but you would have to check with the company that made it.
Most companies are using the same billet steel cam core for both, so that shouldn't be a problem.
The sollid roller profiles have a clearence ramp that takes the lash out smoothly. Some Hydraulic Roller have the same type of ramp, just shorter. Some don't. If it's got a .006" clearence ramp on it, you could run a solid roller with .010" hot lash. On an all aluminum motor, that would be pretty darn tight Cold.
Old 07-31-2006, 01:00 PM
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Originally Posted by CamKing
There are some cam designs that will work with both a solid or a hydr roller, but you would have to check with the company that made it.
Most companies are using the same billet steel cam core for both, so that shouldn't be a problem.
The sollid roller profiles have a clearence ramp that takes the lash out smoothly. Some Hydraulic Roller have the same type of ramp, just shorter. Some don't. If it's got a .006" clearence ramp on it, you could run a solid roller with .010" hot lash. On an all aluminum motor, that would be pretty darn tight Cold.
Well the cam is a CompCams XE-R custom cam with 248/254 duration and .622/.612 lift. What do you think?
Old 07-31-2006, 01:33 PM
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I say call Comp
Old 07-31-2006, 01:50 PM
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Originally Posted by slow67
I say call Comp
I agree.
I don't think you can run a solid lifter on an XE-R profile, but Comp would know for sure.
Old 07-31-2006, 02:34 PM
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If you called Comp, if they said it was okay, then you had a problem, they would be more likely to give you some kind of warranty, as opposed to just saying "we told ya so"
Old 08-01-2006, 06:00 AM
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I haven't talked to anyone else about this. I will give them a try.



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