TORCHD 02 TA

iTrader: (39)

i got the comp Dual springs (made by PRC) hopefully i am ok

BYE RICE

iTrader: (2)

What makes you say a Comp spring is made by PRC?
Do you have 921's?
Threre aren't too many folks that actually make springs.

Scoggin Dickey

iTrader: (34)

I've been talking to our rep at Comp Cams and just want to post to assure everyone that your 918 springs are fine to be installed! They called the original posted over there (they had his phone number and had already spoke with him and figured out the issue with him getting an old spring that was bad from a year or so ago).

You can tell by the retraction of the original thread and the tone of the new thread that he should not have been posting like that. There have been no more "bad batches" sent out from Comp and everyone can install them without worries! And just to put this into perspective....About 7500 of these springs are installed each month! If it was a widespread problem, CompCams would be on the phone with every distributor recalling these springs, paying to have them pulled off engines, and helping with labor to have them replaced!

Now onto bigger and better things: I'll go ahead and drop a teaser in here Comp will be releasing the new "918 High Lift" valve spring in about a month from now! It will still be a single beehive spring which will accept the same retainers we've been using on the 918's, no machining of the spring pockets will be needed, etc. It will be built to handle .650" lift! Again, just a teaser...MORE LATER!

trigger1

iTrader: (28)

dun dun dun.

LS1rulz

iTrader: (1)

Wow that's a lot of lift for those springs.
Pushing the springs' limit + not using your cam's powerband = strange decision

On that note, let us know how it goes. It'll be great until valve float occurs.

99FBODY

iTrader: (8)

i had the springs and had no problems with them but i got them awhile back.

silver01z06

the 918's are ok springs. i just think some people push the limits and then have problems. i have talked to several people who are doing this. the easiest thing to do is not be cheap. get 921's, prc duals or patriot golds. all are good dual springs. if your cam needs the lift its not worth risking the issues

BlueB4C

iTrader: (9)

I had bought the 918's already and was told by TSP they are good up to .625" lift and should be fine with my cam. I plan on using the cams power band with the dual springs I have when I put my heads on later this year, this car is NOT a full blown race car as I plan on putting about 15,000 miles per summer on this thing. So I know it's strange and I probably should have put the duals on in the first place but the money at the time was tight and I am the most impatient person In the world and wanted my cam in
I have pushed the thing to just before the stock rev limiter without a tune a handful of times and the cam is already making nice power I just hope all holds together until I can get the heads on.

LS1rulz

iTrader: (1)

Yeah it should still be making power long after the stock rev limiter. That's what I'm saying. You could've gotten the same results from a 224 cam. And you might've been told by a sponsor that they're good to .625, but you might want to ask around instead. They're much more commonly accepted to about .600. Any more at higher RPM with stock weight valvetrain, and you're at risk of valve float.

BlueB4C

iTrader: (9)

Had her dynoed today at newera on their dynojet and made 406RWHP corrected and 379RWTQ, took it to 6800 with ZERO valve float with the 918's I couldn't be happier

Numba1Stunna

iTrader: (4)

nice #s

LS1rulz

iTrader: (1)

Nice. Let us know how they are in 10-15k miles. If they hold up, I'll consider them too.

BlueB4C

iTrader: (9)

They probably wont be on the car for that long but if they are I will keep you posted.

bluecamaroz28

I had a broken 26918 spring on piston #6 intake valve. There was some noise from pass side valve cover.

Opened the valve cover to check and found spring snapped in the middle. Saw the broken spring but the valve stayed in place.

Now should I replace all springs or just the broken one?

shkettle

iTrader: (26)

if one was weak, they all can be. i would replace them all.

mvvette97

iTrader: (18)

I had 8 out of 16 break in the EXACT same place. That was with a max lift of 573. I posted about it earlier this last winter. I now run the patriot golds.

bluecamaroz28

Okay, I replaced all of them with new ones, 918's.

Should Comp Cams compensate customers of bad batches of 918 springs?

My cam lift is .581.

Studytime

iTrader: (15)

"First time shame on you.

Second time..."

PREDATOR-Z

Installed at proper height, they are one of the best springs for valve control.
They are rated at .625 originaly and like magic when the 921s hit the market Comp lowered their rating.
i've personally run them on .612 lifts with no issues. Most of their failures are due to improper install (not right height, wrong retainer etc...)
Also these are more brittle springs when cold, I have always let my motor warm up and always waited for full operating temp to slam them.
I've used them in 4 applications with Zero failures.
It is recommended to run titanium retainers for them, while the stock retainer fits, it is not a snug fit.