Solid roller lifters, rev kit, or am I O.K.?
Thread Starter
Pro
Joined: Dec 2001
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From: NYC NY
Solid roller lifters, rev kit, or am I O.K.?
Allright, the engine is coming together, but before I put on the manifold tell me what you guys think.
I have AFR 195 with upgraded springs (don't know the seat pressure off hand, but they will accept more than .6" of lift). AFR said these are good up to 7000 rpm (but what does that really mean?).
I have a tpis ZZX cam. Gross lift w/1.6 CC pro mag RR's is about .595.
I'm looking to get 6700 rpm's out of this motor. Is this feasable? I don't really want to go to a solid roller lifter, but I will if I have too. What about a rev kit? Or can I expect these numbers on springs alone?
What do you guys think? Thanks.
Jeff
I have AFR 195 with upgraded springs (don't know the seat pressure off hand, but they will accept more than .6" of lift). AFR said these are good up to 7000 rpm (but what does that really mean?).
I have a tpis ZZX cam. Gross lift w/1.6 CC pro mag RR's is about .595.
I'm looking to get 6700 rpm's out of this motor. Is this feasable? I don't really want to go to a solid roller lifter, but I will if I have too. What about a rev kit? Or can I expect these numbers on springs alone?
What do you guys think? Thanks.
Jeff
Race Director
Joined: May 2001
Posts: 14,165
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Re: Solid roller lifters, rev kit, or am I O.K.? (C4-Wolf)
Get some comp cams pro magnum lifters and you should be alright. They are supposed to do a very good job in the high RPM's compared to stock lifters. I only turn mine to 6300, but I have been very pleased with them.
My friend built his 396 and he's gonna be using the comp cams lifters to hopefully turn 7000.
My friend built his 396 and he's gonna be using the comp cams lifters to hopefully turn 7000.
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: Solid roller lifters, rev kit, or am I O.K.? (C4-Wolf)
It's not a good idea to mix solid lifters with a hydraulic cam, or vice versa. It HAS been done and can be made to work, but it's not for a daily driver.
Le Mans Master
Joined: Oct 1999
Posts: 9,713
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From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: Solid roller lifters, rev kit, or am I O.K.? (C4-Wolf)
You will probably be fine without a rev kit, but if you really plan on turning it past 6500, it is probably a good idea.
Instructor
Joined: Jun 1999
Posts: 182
Likes: 1
From: oak island NC
Re: Solid roller lifters, rev kit, or am I O.K.? (C4-Wolf)
My rev limiter comes on at 7200 and have had no problems with valve train to date, ( knock on wood). We use the comp lifters, rockers, springs, hardened pushrods and girdle. Also installed 7/16 studs. Normal shift is done at 7100 to 2nd, 3d, and 7000 to 4th.
Burning Brakes
Joined: Dec 2000
Posts: 1,023
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From: Marietta, South Carolina, USA
Re: Solid roller lifters, rev kit, or am I O.K.? (C4-Wolf)
You cant use soild lifter for a hydraulic cam, and you may want to ask how much seat pressure you have because it is not good to go over 135 on a hydraulic cam.
I dont know what intake you have but if you have the TPI then I dont think the intake can breath past 5000rpm.
Jay
I dont know what intake you have but if you have the TPI then I dont think the intake can breath past 5000rpm.
Jay
