Comp 918's...
I'd personally reccomend the PAC springs. PAC were the original suppliers to comp when the 918s came out, and when they left to soure them elsewhere is when comp had the problems with the 918s.
PAC makes a nitrided version of the beehive spring for our cars that is good for .650 lift.
Here's info:
http://www.pacracing.com/Street_Stri...Set_of_16.html
And here's some pricing..
https://ls1tech.com/forums/showthrea...ht=pac+springs
PAC makes a nitrided version of the beehive spring for our cars that is good for .650 lift.
Here's info:
http://www.pacracing.com/Street_Stri...Set_of_16.html
And here's some pricing..
https://ls1tech.com/forums/showthrea...ht=pac+springs
These I believe are the older design. They have the blue stripe and are black. The pics of the newer design that I've seen have a silver look to them. These came with a new cam package that I bought here on the fourm. Not sure if these will work with the cam though (the previous owner bought them to use with the cam when he purchased the cam pkg).
I have heard bad things about the older design with the stripe on them. Who knows the new ones could just be repainted ones. Like i said my combo has only about 500 miles on it but it has been to 6800 many times already.
BTW are you from springfield mo area, maybe on 417racing?
BTW are you from springfield mo area, maybe on 417racing?
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Personally...after all the issues with the 918's, I won't be putting a Comp valvespring on my car.
I went overkill when I went with a smaller cam and threw on dual valvesprings.
Now, been beating on my Patriot springs with a 629/622 lift cam.
Probably go with Manley duals when these get to 15K miles.
I went overkill when I went with a smaller cam and threw on dual valvesprings.
Now, been beating on my Patriot springs with a 629/622 lift cam.
Probably go with Manley duals when these get to 15K miles.
There's nothing wrong with comp springs. It was only those batches of 918s that went out. I'll be using a set of revised 918s in my new engine and a set of 26089s once I get some money saved up.
Personally...after all the issues with the 918's, I won't be putting a Comp valvespring on my car.
I went overkill when I went with a smaller cam and threw on dual valvesprings.
Now, been beating on my Patriot springs with a 629/622 lift cam.
Probably go with Manley duals when these get to 15K miles.
I went overkill when I went with a smaller cam and threw on dual valvesprings.
Now, been beating on my Patriot springs with a 629/622 lift cam.
Probably go with Manley duals when these get to 15K miles.
I hadn't really researched them yet, as it will be a few more years before getting to 15K on the current ones.
TECH Enthusiast
Joined: May 2005
Posts: 689
Likes: 0
From: Perth, Australia
The springs that break can break for a couple of reasons...
1) install error
2) improper breakin
3) spec'ed for the wrong cam
4) not allowing the springs to heat up before whacking it with high RPMS
I've seen Pat. Duals break, any spring can break.
1) install error
2) improper breakin
3) spec'ed for the wrong cam
4) not allowing the springs to heat up before whacking it with high RPMS
I've seen Pat. Duals break, any spring can break.
TECH Enthusiast
Joined: May 2005
Posts: 689
Likes: 0
From: Perth, Australia
Yes, it's the ones which break for NO REASON you have to worry about.
