Which springs to go with..........Need help.
Thread Starter
Teching In
Joined: Jul 2006
Posts: 13
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From: Geneva, Nebraska
Which springs to go with..........Need help. I'm doing a cam install on my '99 vette with 23000 miles, and i need to be pointed in the right direction. the specs on my cam are that it's a compcams custom grind, 228/230 .590/.595 lift on a 113 LSA. I know that the compcams 918 springs are rated to .600 lift, so will they be sufficient in this application, or do I need added security by installing the 921 dual springs? Some say that the 921's would be overkill, especially on stock lifters. Any help any of you members can provide would be very appreciative. Thanks.
Shaun
Shaun
i would run the patriot gold duals,,for the money you cant beat it,you get the springs,retainers,viotn seals and super 7 locks..This is what im running and they seems to be working great.
I'd go with the 918's. They used to be rated higher, but the number was lowered when the duals came out. Thunder Racing recomended I use the 918's on a .600" lift cam.
And believe me, I asked a thousand times if he was beyond sure.
Good luck!!
And believe me, I asked a thousand times if he was beyond sure.
Good luck!!
Staging Lane
Joined: Jul 2006
Posts: 78
Likes: 0
I would use CompCams 26918's cause if you use duals you will lose power
More spring tension= the more the crank has to try to get the cam to move
As long as you are not floating valves, you will be alright
And of coarse the add spring tension will put more pressure on the Plunger of the stock hydraulic lifter
More spring tension= the more the crank has to try to get the cam to move
As long as you are not floating valves, you will be alright
And of coarse the add spring tension will put more pressure on the Plunger of the stock hydraulic lifter
Originally Posted by redtail2426
i would run the patriot gold duals,,for the money you cant beat it,you get the springs,retainers,viotn seals and super 7 locks..This is what im running and they seems to be working great.
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Originally Posted by slow67
At only .595 lift I would go with 918s. They have better valve control than duals, and really can go to .610 lift safely.
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Brett Foote duals do not cost you any horsepower,there is always a spring closing at the same time one is opening,its a balanced system,doesnt matter what spring you use,it wont cost you any more power.
There are a couple of sets of PSI beehive springs in the for sale section with titanium retainers that were removed from Dart heads. They are fabulous springs and stiffer than 918's. Retainer is only 6.6 gms. Might want to consider these as well. I have been thinking of picking up an extra set.