Comp Cams 918 spring broke......
Ok guys, I just got off the phone with CompCams and they want to be involved...here's what they/we need from the members here:
If you have any of these broken springs, CompCams wants and needs to talk directly to you! They also of course will want these springs back so they can test them and look into this.
it is VERY difficult (if not impossible) for them to remedy any problems there might be with a spring by reading about it on the internet! So please, call CompCams at 800.999.0853 (that's their toll free tech line), and tell them you've got broken spring(s) and want to know what to do with them! Their customer service is second to none and they want to speak to you! Again, the only way they can fix a problem that might exist is to deal directly with the customer with the springs!!!
Thanks!
If you have any of these broken springs, CompCams wants and needs to talk directly to you! They also of course will want these springs back so they can test them and look into this.
it is VERY difficult (if not impossible) for them to remedy any problems there might be with a spring by reading about it on the internet! So please, call CompCams at 800.999.0853 (that's their toll free tech line), and tell them you've got broken spring(s) and want to know what to do with them! Their customer service is second to none and they want to speak to you! Again, the only way they can fix a problem that might exist is to deal directly with the customer with the springs!!!
Thanks!
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I can't believe this is happening guys! I ran 918s in my car with a TR230 cam for 4 years & 50k miles and never had any of them chip or crack or fail. I hope Comp can get you guys back on your feet ASAP!
Originally Posted by jimmypop13
I can't believe this is happening guys! I ran 918s in my car with a TR230 cam for 4 years & 50k miles and never had any of them chip or crack or fail. I hope Comp can get you guys back on your feet ASAP!
To echo Matt....I too talked with Comp about the issue. They recommend sending any broken parts back for inspection.
If you look at our web site, particularly our cam packages, we do not even offer that spring on the cam packages with anything over .569 lift.
After that, we offer only double springs in the packages.
IMO, this is mostly a "kneejerk" reaction to a few broken springs. I have seen every spring out there break at one time or another. It is the nature of what we are doing. We are pushing parts hard and these cars make more than any muscle car ever did from the 1960's or '70s.
Also, Thunder has had ZERO cals regarding the 918 springs, and I believe this is because we do not sell it to folks running cam lifts over .570". Not pciking on anyone else, but you can get a good deal on parts, or you can get what you need with no "ragged edge" worries required on your end.
If you look at our web site, particularly our cam packages, we do not even offer that spring on the cam packages with anything over .569 lift.
After that, we offer only double springs in the packages.
IMO, this is mostly a "kneejerk" reaction to a few broken springs. I have seen every spring out there break at one time or another. It is the nature of what we are doing. We are pushing parts hard and these cars make more than any muscle car ever did from the 1960's or '70s.
Also, Thunder has had ZERO cals regarding the 918 springs, and I believe this is because we do not sell it to folks running cam lifts over .570". Not pciking on anyone else, but you can get a good deal on parts, or you can get what you need with no "ragged edge" worries required on your end.
Couldn't have said it better myself, Todd! Thank you.
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Thread Starter
Teching In
Joined: Jan 2007
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Originally Posted by Matt @ SDPC
Ok guys, I just got off the phone with CompCams and they want to be involved...here's what they/we need from the members here:
If you have any of these broken springs, CompCams wants and needs to talk directly to you! They also of course will want these springs back so they can test them and look into this.
it is VERY difficult (if not impossible) for them to remedy any problems there might be with a spring by reading about it on the internet! So please, call CompCams at 800.999.0853 (that's their toll free tech line), and tell them you've got broken spring(s) and want to know what to do with them! Their customer service is second to none and they want to speak to you! Again, the only way they can fix a problem that might exist is to deal directly with the customer with the springs!!!
Thanks!
If you have any of these broken springs, CompCams wants and needs to talk directly to you! They also of course will want these springs back so they can test them and look into this.
it is VERY difficult (if not impossible) for them to remedy any problems there might be with a spring by reading about it on the internet! So please, call CompCams at 800.999.0853 (that's their toll free tech line), and tell them you've got broken spring(s) and want to know what to do with them! Their customer service is second to none and they want to speak to you! Again, the only way they can fix a problem that might exist is to deal directly with the customer with the springs!!!
Thanks!
I just got off of the phone with Comp and no one that I spoke to (several different people) had a clue about any of this. All but one didn't even know what a vavle spring was! I was told that they were unaware of any 918 failures but would like me to send all my springs back for them to check out. He also stated that I MAY be sent another set of springs to replace mine. I told the rep that I did not want another set as I just ordered Patriots from Thunder Racing a couple of hours ago. I'll update when I know more.
I wouldnt replace them with more 918's unless comp has detected a problem. These springs went practically for years without hardly any complaints. Now all of a sudden it almost seems like everyone who installed these within the last years is popping their valve covers only to see the spring ends broken off.
Heres a link to another couple instances local to me. (Thread title may be NSFW)
http://www.fastlsx.com/forums/showthread.php?t=14859
Snuff Pics: http://www.fastlsx.com/forums/showpo...7&postcount=29
This guy was a big topic of conversation at dyno day (since he missed it) and a few additional local instances were noted.
Heres a link to another couple instances local to me. (Thread title may be NSFW)
http://www.fastlsx.com/forums/showthread.php?t=14859
Snuff Pics: http://www.fastlsx.com/forums/showpo...7&postcount=29
This guy was a big topic of conversation at dyno day (since he missed it) and a few additional local instances were noted.
Red in warranty claims is the man to talk to! Leave him a message if he doesn't answer and he will return your call! he knows the situation and is ready for your calls!
__________________
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Originally Posted by Matt @ SDPC
Red in warranty claims is the man to talk to! Leave him a message if he doesn't answer and he will return your call! he knows the situation and is ready for your calls!
He helped me out.
The "tech" guys are mostly worthless.
It's like they went down to the rescue mission & hired Tyrone Biggums.
Originally Posted by BYE RICE
It's like they went down to the rescue mission & hired Tyrone Biggums.
Originally Posted by vettenuts
The 120# @1.800" is simply a rating. There is probably no one on this forum running springs at 1.800", not even the stock springs are set up at that height, they come it at about 1.760". 
i wonder if some shops just put them in without checking pressures,assuming if they install them at 1.800" all is well...
Originally Posted by 66deuce
really?when i had LPE go over my heads on my old Z,the springs checked out at 135lbs@1.800" installed height..they were the Patriot Gold Duals tho,not the 918s..
i wonder if some shops just put them in without checking pressures,assuming if they install them at 1.800" all is well...
i wonder if some shops just put them in without checking pressures,assuming if they install them at 1.800" all is well...
All of the 918 springs should measure the same. You should not have to shim differently to get to the target seat pressure.
Originally Posted by GuitsBoy
I think he meant that the 120# @ 1.8 is a rating. You can change your seat pressure by shimming, or effectively reducing the install height. Thats how you would run a more aggressive cam without valve float, within reason. If you shim too much, you have to worry about coil bind. You would install at the normal 1.8 unless it was a specific application that required additional pressure.
All of the 918 springs should measure the same. You should not have to shim differently to get to the target seat pressure.
All of the 918 springs should measure the same. You should not have to shim differently to get to the target seat pressure.
Originally Posted by Reckless
To echo Matt....I too talked with Comp about the issue. They recommend sending any broken parts back for inspection.
If you look at our web site, particularly our cam packages, we do not even offer that spring on the cam packages with anything over .569 lift.
After that, we offer only double springs in the packages.
IMO, this is mostly a "kneejerk" reaction to a few broken springs. I have seen every spring out there break at one time or another. It is the nature of what we are doing. We are pushing parts hard and these cars make more than any muscle car ever did from the 1960's or '70s.
Also, Thunder has had ZERO cals regarding the 918 springs, and I believe this is because we do not sell it to folks running cam lifts over .570". Not pciking on anyone else, but you can get a good deal on parts, or you can get what you need with no "ragged edge" worries required on your end.
If you look at our web site, particularly our cam packages, we do not even offer that spring on the cam packages with anything over .569 lift.
After that, we offer only double springs in the packages.
IMO, this is mostly a "kneejerk" reaction to a few broken springs. I have seen every spring out there break at one time or another. It is the nature of what we are doing. We are pushing parts hard and these cars make more than any muscle car ever did from the 1960's or '70s.
Also, Thunder has had ZERO cals regarding the 918 springs, and I believe this is because we do not sell it to folks running cam lifts over .570". Not pciking on anyone else, but you can get a good deal on parts, or you can get what you need with no "ragged edge" worries required on your end.
I will have test results on my broken spring in about a week.
Originally Posted by Reckless
Understandable Dave, but 5 broken springs out of 80,000 is a pretty good success rate 
Originally Posted by Reckless
Understandable Dave, but 5 broken springs out of 80,000 is a pretty good success rate
Got that stroker done yet?
Got that stroker done yet?
I just don't see how you guys are breaking springs 200 miles or so after installing a cam.
It says in the "cam guide" here to allow a ~300 mile or so break in for the springs so they get some heat cycles.
Are you guys installing a cam and then beating the **** out of your car and banging the redline? Comp cams has been around for a long *** time and I've never heard of this and I've had a hand in the 3 drag cars.
It says in the "cam guide" here to allow a ~300 mile or so break in for the springs so they get some heat cycles.
Are you guys installing a cam and then beating the **** out of your car and banging the redline? Comp cams has been around for a long *** time and I've never heard of this and I've had a hand in the 3 drag cars.