Comp 915s vs 918s

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Sep 28, 2007 | 11:36 PM

ZTwentyAteU

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From: Nashville, TN

Comp 915s vs 918s

I've heard that the spring pressure on 918s is a little too much on a stock cam. But the 915s are supposed be be ok. 105 vs 130lb. I'm wondering because I have many projects right now, and i've got a couple springs that are down on the T/A, and I don't have time to do a cam right now, but it will be put in in a few months.

I have a friend that did the 915s before his cam, and he is wondering if it is a limit over the 918s now on how big he can go.

any input?

Sep 29, 2007 | 12:11 AM

Grimes

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From: Northern NJ

Definitely go with the 918s, not too much for a stock cam, and good for many aftermarket grinds too

Sep 29, 2007 | 02:47 AM

PREDATOR-Z

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From: BFE

If you do not plan any cam change, ie stay stock, then just get a set of LS2 springs (otherwise known as LS6 springs 02+)
They are much cheaper and will do the job fine.

Sep 29, 2007 | 04:58 AM

orangeapeel

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From: Justin, TX

Looks like you may have a plan for a cam...Depending on what your cam is may help determine what your springs should be.

Sep 29, 2007 | 09:08 AM

BigKap94z

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I did my spring swap before the camswap, and ran shimmed 918's on the stock cam for 5k+ miles.

Sep 30, 2007 | 04:59 PM

ZTwentyAteU

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From: Nashville, TN

Quote:

Originally Posted by BigKap94z

I did my spring swap before the camswap, and ran shimmed 918's on the stock cam for 5k+ miles.

Thanks, that makes me less worried

Sep 30, 2007 | 06:29 PM

RE AND CHERYL

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From: Dover DE

I'm running 915s on my Stealth II cam and it runs great

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Oct 1, 2007 | 11:52 AM

PREDATOR-Z

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From: BFE

Yeah, Comp Cam dropping PAC was about 1 of the dumbest move they could make. At least from a quality point.

Oct 4, 2007 | 04:20 PM

#10

BigKap94z

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Quote:

Originally Posted by Yeahdoug

Well 918s arn't really an option right now since Comp has stopped selling them due to failures.

But you can get the old/good 918s and 915s from PAC. New part # is PAC-1218 and 1215.

I am running shimmed PAC 1518 springs now. Great spring. I replaced my 918's with them when with the camswap.