Comp 921's
Comp 921's Hey guys, ive got an 00 Z bolt on car and im planning on putting an X3 cam or a fm 15 cam. I have a set of comp 921 and hardened pushrods just laying around and i want to install them but i wont have the cam for a couple of months (waiting to get ls6 intake and ported throttle body etc...) My question is will the car be ok running the 921's until i get my cam or is that to much spring for a stock camed car?
Originally Posted by PREDATOR-Z
What would you gain from doing that? nothing.
Originally Posted by PREDATOR-Z
What would you gain from doing that? nothing.
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iTrader: (20)
Joined: Sep 2002
Posts: 2,684
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From: Albuquerque NM - The Land of 8000ft DA
better valvetrain stability at higher RPMs
I have 918's with the stock cam and Ti retainers and hardened pushrods. This was done after launching at 6600+ rpm (about 20 passes) on the stock valvetrain and it messing up a few things.
There is nothing wrong with doing it, in fact I would personally prefer to do it before and save yourself the headache and some time from the cam install. The spring install ate up about 2-3hrs on a friends car.
I have 918's with the stock cam and Ti retainers and hardened pushrods. This was done after launching at 6600+ rpm (about 20 passes) on the stock valvetrain and it messing up a few things.
There is nothing wrong with doing it, in fact I would personally prefer to do it before and save yourself the headache and some time from the cam install. The spring install ate up about 2-3hrs on a friends car.
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Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Go ahead and swap them. If you picture what is happening, the stock cam may be smaller but it's still a solid piece of metal pushing up on the lifters. Not like the stronger springs are going to suffocate it, lol. Only question: Do you have a GOOD spring tool?
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Originally Posted by blkZ28spt
Go ahead and swap them. If you picture what is happening, the stock cam may be smaller but it's still a solid piece of metal pushing up on the lifters. Not like the stronger springs are going to suffocate it, lol. Only question: Do you have a GOOD spring tool?
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