My current dilemma: OEM yellow '02-'04 springs or Comp 918's w/ stock cam.
08-22-2006, 09:17 AM
#1
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My current dilemma: OEM yellow '02-'04 springs or Comp 918's w/ stock cam.
Randy@DRM and Andy at AA said stock springs should fit my application... so I ordered a set along w/ new valve seals and some spare locks. I'm in the midst of a very large project!
Part I
Part II
The issue... now all my local guys are saying to use comp 918's and to upgrade the pushrods and that putting factory springs in is a waste of my labor. Randy said the yellows have about 5lbs more seat pressure than the blues and that's really all I want.
I guess the real question is are the oem springs of an inferior quality? Will the 918's provide more relaibility? I say this but I have over 63k on my stock springs w/o issue. I always let it warm up to 150 oil temp on the DIC before flogging it.
So... before I start doing all this... proceed w/ oem yellows or spend the coin on 918's and hardened pushrods?
I don't want to overspring it for no reason.
Part I
Part II
The issue... now all my local guys are saying to use comp 918's and to upgrade the pushrods and that putting factory springs in is a waste of my labor. Randy said the yellows have about 5lbs more seat pressure than the blues and that's really all I want.
I guess the real question is are the oem springs of an inferior quality? Will the 918's provide more relaibility? I say this but I have over 63k on my stock springs w/o issue. I always let it warm up to 150 oil temp on the DIC before flogging it.
So... before I start doing all this... proceed w/ oem yellows or spend the coin on 918's and hardened pushrods?
I don't want to overspring it for no reason.
08-22-2006, 11:40 AM
#3
Drifting
I think you're still using your stock cam aren't you? Since it only has
.525 of lift compared to .550 in the 02-04 Z, I think the '02+ springs would be fine. The T1 guys routinely reset their limiters to 7k but I don't think spring failure is a big issue for them. I expect they're replaced pretty frequently, though. I used 918's and Ti retainers with my small cam and they worked great.
.525 of lift compared to .550 in the 02-04 Z, I think the '02+ springs would be fine. The T1 guys routinely reset their limiters to 7k but I don't think spring failure is a big issue for them. I expect they're replaced pretty frequently, though. I used 918's and Ti retainers with my small cam and they worked great.
08-22-2006, 12:19 PM
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Originally Posted by Timz06
Stock springs. Looks like you are turning into a pimp rather than a racer anyway with all of your bling new body panels! 
