comp 918's...(22,000 miles later)



comp cams new automatic flycutting tool results...

 

Not one of our 918s. Sorry about your engine.

 

Man dude, that sucks.

 

What sort of cam were you running?

 

man i may i have to re think the 918 for my set up what size cam where you running

 

Curious to what cam you were running and also when you got the 918's i was told they redesigned them because they had a bad batch that were poping

Im still planning to run my new 918's on my 224R

 

The "redesigned" 918's are still breaking from what I have read on here. They have had too many quality problems for me to trust them. Which is a surprise coming from comp. Go with PAC (the original/dependable 918's) or PSI if your gonna run singles.

 

230/236 .591.601...
looking back at the receipt,the comp cam kit(cam and springs,pushrods) was purchased back in oct 2006...

 

I have heard that also, but have not seen any proof yet.

I just don't understand why they can't come up with a good 918. We did all the hard work with the design and testing. Then they gave up trying to copy our original and went with a total redesign. Which I've heard from a few people at PRI they've had problems with too.

 

**** it

PRC golds

between comp cam lifter failures, springs breaking im not to impressed with anything except there cams

 

Thats the reason why my car will be FULLY warmed before beating on it.

 

I pull off in the morning with the car cold and I even run up the rpms' cold sometimes. Plus I have over 20K on my springs. Thats why i run dual springs and would suggest it to anyone thats going to go through the hassle of replacing springs in the first place. There are barely any bad stories involving dual springs.

 

dat sucks! dual springs for my set up garentee now!

 

That's not why they failed.

 

I agree, I had 8 out of 16 fail on mine in the first week. I never did even rev it up past 4k during that time and always let the engine fully warm up before even driving. That was on a max lift of 573. I went duals after that..

 

I'm running duals, I've got 15k miles on it since putting them on, had to run the car in -8F weather once, gave it 2 min before I had to drive and nothing broken. Mind you I didn't beat on it, kept the rpm under 2500 but I still drove at highway speeds.

Duals give that piece of mind that in the event it does break, you still have a chance to save the head and some headache.

 

Why do you think we recommend to check pressures after 10K and replace after 15K

You cant just drop a cam on such lift and forget about it.

 

A couple basic questions regarding the topic of this particular thread:

1. How did you know that the spring was broken? In other words, what noises did you hear or what indications were there to tell you there was a problem?

2. What other problems could occur from this spring failing?

 

listen predator-z,i ain't complaining...**** breaks...you well know regardless of recommended this or that,part failures occur...

i have no problems replacing the springs with another set of comp springs...here is another picture for you to mull over from your throne...

 

Wow! I have to wonder how many miles are on your engine.
Sorry about your misfortune, but it could have been much worse.

As long as that connecting rod is not bent, and the engine still turns,
you should still be able to run that bottom end.

Maybe clean the block deck and decarbonize the pistons ( if possible )
than blow it all out with air, to remove all debries. Maybe a slight dremel
action on the ridges.

Freshen up the heads, a new valve, new springs.



OR ???? --------> $$$


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