Comp Conical springs; any usage reports yet?
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Teching In
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From: Alaska
Comp Conical springs; any usage reports yet? I'm curious to hear any user/usage reports on these springs. http://www.compperformancegroupstore...t_Code=7230-16
The loads are near perfect for my application, and the reduced weight/mass at the top along with the lighter retainer makes these a very attractive spring to consider. I don't want to be the test pilot though....
I've been using the Comp 26926's with Ti retainer on this engine for the past year or so, but the valve train is not happy. All exh seals were removed by the inner spring, and then beat to crap.
I have a very strong preference to stay with the HR lifter. Using Morel 5294's. Good for 220 seat and 550 open loads.
LS7, .670 lift, Crower rockers, 85 gram exh valve, 7200 rpm fuel cut off.
I called Comp to ask about the 7230 Conicals, and must have gotten someone not familiar with their product (imagine that). He told me to use the springs I'm already using, and the Conicals would not support the lift. Waste of time.
The loads are near perfect for my application, and the reduced weight/mass at the top along with the lighter retainer makes these a very attractive spring to consider. I don't want to be the test pilot though....
I've been using the Comp 26926's with Ti retainer on this engine for the past year or so, but the valve train is not happy. All exh seals were removed by the inner spring, and then beat to crap.
I have a very strong preference to stay with the HR lifter. Using Morel 5294's. Good for 220 seat and 550 open loads.
LS7, .670 lift, Crower rockers, 85 gram exh valve, 7200 rpm fuel cut off.
I called Comp to ask about the 7230 Conicals, and must have gotten someone not familiar with their product (imagine that). He told me to use the springs I'm already using, and the Conicals would not support the lift. Waste of time.
I didn't have very good luck with them. I had one break on me while cruising the highway at around 1800RPM. I installed them with stock hardware and had well over the .060" coilbind clearance that I usually install springs to. I filled up the tank twice since installing them so maybe 500 miles on them when it failed. Never pulled it above 3500RPM, never went WOT, just cruising around.
Ya that doesnt look good. Did it drop a valve and cause major damage?
I am running PAC 1218s and have good luck with them. I have about 2500 miles on them and spin them up to 6200rpm. In the back of my head I worry about dropping a valve but have been told that the PAC 1218s are a good spring and should last with a smaller cam. I am using PAC Titanium Retainers and their machined valve locks with LS6 Valves in my 243's to keep rotating mass down.
I am running PAC 1218s and have good luck with them. I have about 2500 miles on them and spin them up to 6200rpm. In the back of my head I worry about dropping a valve but have been told that the PAC 1218s are a good spring and should last with a smaller cam. I am using PAC Titanium Retainers and their machined valve locks with LS6 Valves in my 243's to keep rotating mass down.
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From: Saskatchewan, Canada - where arguing "DA" is for the slow and weak...
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Verdad Gallardo Joined: Mar 2007
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From: Saskatchewan, Canada - where arguing "DA" is for the slow and weak...
Not really. I emailed them and got a reply asking how I set up the springs. I laid everything out, showed that I checked coilbind clearance, installed height, etc. and never heard back. I put it behind me, but I think I might so ahead and pursue it and try to find out what happened.
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Not really. I emailed them and got a reply asking how I set up the springs. I laid everything out, showed that I checked coilbind clearance, installed height, etc. and never heard back. I put it behind me, but I think I might so ahead and pursue it and try to find out what happened.
valve control.
If you find out anything you should let us know.
Not really. I emailed them and got a reply asking how I set up the springs. I laid everything out, showed that I checked coilbind clearance, installed height, etc. and never heard back. I put it behind me, but I think I might so ahead and pursue it and try to find out what happened.
This could have allowed the spring to move around a bit and/or cause coil surge even at lower RPMs.
Then again they could just be giant piles of Llama feces for a .600" lift roller
If I remember correctly; You stated that you hated the sloppy-ness of the retainer inside the top of the spring
This could have allowed the spring to move around a bit and/or cause coil surge even at lower RPMs.
Then again they could just be giant piles of Llama feces for a .600" lift roller
This could have allowed the spring to move around a bit and/or cause coil surge even at lower RPMs.
Then again they could just be giant piles of Llama feces for a .600" lift roller
If it's something with the spring, at least Comp can use the information to make a better spring. If it's something I did, well then I learn something new that I can do to avoid another issue in the future. We'll see though. I'll report back when I have new info to share.
Teching In
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I know it has been a few years now, but I am curious as to whether or not anything came about from this? I was planning on going with a smaller lsr cam in a ls6, and these springs are supposed to be fantastic, until i got on this thread... I know people who put 15k miles a year on btr dual spring setups with pretty aggressive cam profiles. I would hope people would get more than just 2k miles on these.
JMO, I would not run Comp springs at all. They used to be pretty good quality 15+ years ago, but they were buying them from an American supplier-PAC, PSI, etc- and rebranding them. Now, from what I heard and seen, it's Asian manf of some sort. Quality has been off for a long time, I certainly don't trust them. If you want a conical spring, go with the PSI's or PAC's, either is fantastic. Isky Tool Room springs are amazing, as well, but limited applications.
Teching In
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That seems to be common opinion. I spent some time researching Comp's springs, and seriously, have not found any one recommending them for any application, whether it be gm, ford, ect. It has me kinda questioning their cams now... As far as springs go though, I think I'm between Pac's 1518 springs or BTR's .660 platinums. The cams specs are 215/223, .604/.610, 112lsa. I'm not trying to reinvent the wheel here. Just want a little more out of a ctsv1 that i put about 3-4k miles a year on...
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i have comp 7230s in my 468" ls7, its a fairly new motor but its my only driver so it gets regular use. the heads were done by wcch and the motor was built by hpr so i trust the selected parts are known to be high quality.
Teching In
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Interesting. I was spec'd the 7228's when I first enquired about the cam. Maybe there are way more people out there that are running comp springs, just aren't commenting on them. People rant and rave about PSI, PAC, ect. At the same time, BTR seems to be fans of comps products.
Not all Comp stuff is bad. I actually like a lot of their cams, and those are all made in house. A lot of their rockers are good, as well. The springs have been an issue, though. If WCCH and HPR are recommending them, they are probably pretty good. Keep in mind, they are rebranded from someone else, so it's probably from PAC/PSI anyway.