Will this Combination spin to 6700 RPM without Valve Float?
Thread Starter
10 Second Club
Joined: Nov 2002
Posts: 1,471
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From: Berkeley, California
Will this Combination spin to 6700 RPM without Valve Float? Comp XER 228/230 .581/.588 Cam
Stock (hollow stem) LS6 valves
Stock GM 1.7 rockers
GM 88958689 Cadillac Racing Lifters
Chromemoly pushrods
Titanium Retainers
PAC 1518 Beehive Springs
All comments will be apreciated.
Stock (hollow stem) LS6 valves
Stock GM 1.7 rockers
GM 88958689 Cadillac Racing Lifters
Chromemoly pushrods
Titanium Retainers
PAC 1518 Beehive Springs
All comments will be apreciated.
shouldn't be a problem, what are the pressures for those springs? Cam will peak way sooner than 6700k FYI.
Thread Starter
10 Second Club
Joined: Nov 2002
Posts: 1,471
Likes: 3
From: Berkeley, California
Thread Starter
10 Second Club
Joined: Nov 2002
Posts: 1,471
Likes: 3
From: Berkeley, California
Thanks JPH. I’ve been concerned because I have the PAC springs and Ti retainers but Comp literature seems to recommend dual springs for all XER lobes – I can’t find a specific recommendation.
-Gary
-Gary
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Are you sure you have the lift listed right? The Comp Cams master lobe catalog shows those lifts to go with a 224/228 XER, or is it a custom grind?
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Verdad Gallardo Thread Starter
10 Second Club
Joined: Nov 2002
Posts: 1,471
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From: Berkeley, California
My cam is a bit larger then that with chromoly retainers and PAC 1518's installed at 1.75" and have no valvefloat problems. Stock lifters, and stock GM valves(not lightweight LS6 valves) are what i use as well so I don't think you will have any problems.
Launching!
Joined: Jun 2007
Posts: 212
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From: NC
Katech uses some of our higher end stuff for their C6R program.
PSI was started by ex-PAC guys. Just a fun fact.
round wire vs. ovate wire
IMO PAC springs are lot easier to get ahold of for a competitive price too, PSI's distributor is a small arrogant group out of NC <rant off>
Last edited by Fraser@SpeedInc; Mar 27, 2008 at 11:24 PM.
Thats odd I just called em up and got em in 3 days?? Oh..... you sell pac springs and not PSI.. rofl
