S10xGN

iTrader: (11)

Only COMP problem I've read about recently is the trunnion bearing upgrade quality...

senicalj4579

iTrader: (41)

Still nothing from OP.......

ds98formula

iTrader: (3)

have no problems with my si5. had it for a year and about 12k miles so far with no issues.

3rdCoastPowerSports

iTrader: (5)

I thought it was decided that it was install issues that caused the bearing failures not the product itself.

I use comp cams and trunions all the time and don't have any warranty's. Comp Rocks in my humble opinion.

Burken01

iTrader: (88)

yea up until recently I never heard of the comp trunion rockers failing, unless they werent pressed in completely straight...

Alot of companies stuff fail all the time, comp cams just have 10 times the amount of business as most companies so your bound to hear about a comp problem before any other..

roninsonic

iTrader: (3)

I think OP was just trolling...

itsslow98

iTrader: (18)

Yea theres no need to spread farumors like this with no proof.

01ssreda4

iTrader: (96)

There is plenty of proof. What I've found is some victims don't want to bash the vendor that sold the cam, or put them in the middle of it. Recently several guys lost new engines BC of comp cams. Sometimes you have to personally know the people to see the proof firsthand. However, I had one years ago and I didn't have trouble with it. I'm running a can motion now. If vendors are changing suppliers pay attention, BC they would not do that unless there was a guaranteed problem somewhere.

mac62989

iTrader: (1)

THIS. I just wish the shops and cam gurus that are no longer using comp at least share a little of the story even if it is bad press for COMP so the little guys like us steer clear or are at least informed.

Damian

iTrader: (89)

***Cracks knuckles***

The short version of the story, Comp QC has gone the way of the dinosaurs. I'm not sure if it's their way of trying to keep up with demand, using Chinese metals, who knows. I've removed over 30 Comp camshafts the last 2 years due to lobe failures. Comp continues to give the same responses, it's either "the oil" or "the installer". Well if Comp is right there isn't an oil on the shelf that's working and there isn't an installer in the entire country that knows how to install an LSX camshaft since I'm removing these things out of cars coming from all over the southeastern United states.

If you're reading this and have a Comp camshaft in your engine, your best bet is to run lots of Zinc additive to try and prolong the life of your cam. Even then, it's not a matter of "if", just a matter of "when". This is the additive I recommend.




Bottom line, almost every shop selling Comp cams has seen at least a handful of failures come back to their shop. I know because I've talked to a lot of them. This isn't something that should be kept from the public and I guess I'll take the opportunity to let you all know. A LOT of shops know about it, but of course they're not going to say anything due to it being a popular product they sell.

Give me a few minutes, I'll throw up a couple of pics of some of the dead Comp cams I have laying around....

Damian

iTrader: (89)

Here's a couple. Doesn't really do them justice as my camera sucks and the cams are covered in dust from sitting but these are a few I've got sitting on my junk parts table. My scrap metal guy took most of my other ones.

Blackpanther99

iTrader: (8)

I agree, some of the people or shops that have issues rather not bash on them and start some drama. Which to me is the right thing to do since big companies will tend to have their issues.

Damian

iTrader: (89)

Correct. It's also not the selling vendors fault that their supplier is having QC issues. Hence the reason I will not mention any vendor names nor show the backs of any of those camshafts.

Patrick G

iTrader: (14)

As moderators and admins, we have to walk a very fine line between disclosing issues that might alert forum member of things going on with performance vendors and manufacturers because those vendors are often supporting site sponsors. Nobody wants to go out and purposely hurt a sponsor's business.

Damian has taken the high road by warranty replacing cams and switching to a different cam supplier. No digs were ever directly taken at Comp.

I myself have been disappointed that many of my custom cams from Comp were not ground at the centerline I ordered, so I have quietly enlisted the help of another supplier who guarantees the valve events of my custom cams to be within 1/2 degree of what you order. Did I make a big thread about it? No. I just quietly made the change and got set up with an alternate supplier. It wasn't fair to blast Comp online. I will still use Comp and really like their people. They just won't be my exclusive cam supplier any more.

fly boy_1

iTrader: (4)

Are there specific batches that had problems or is it just luck of the draw? I got an EPS cam in December 2011 that was ground by Comp and Im a bit worried seeing all this. Is there any way of knowing if the cam is bad/going bad or is my motor just going to commit suicide one day?

pauls99z28

iTrader: (32)

Sent you a PM

JakeFusion

iTrader: (7)

The only Comp item in my car is the FAST LSXR intake manifold. Nothing else is. And that's for a reason.

Marc 85Z28

iTrader: (8)

Comp Cams IS correct. It's the oil. While the camshaft metallurgy may be part of the issue, the root cause is modern engine oil.

The failures are going well beyond just camshafts or valvetrain components, and certainly isn't limited to just one brand.

03Sssnake

iTrader: (20)

I would agree, car oil mfrs are being forced by federal law to reduce the anti-wear additives in their oils (as little as 400 ppm zddp in some brands), as they can damage emission equipment over time, i.e. the cats specifically...its being going for a decade or two with gradual reduction over the years. That is why I have switched to Rotella T6 5w-40 which has around 1200 ppm ZDDP and I still add some zddp additive. I have noticed the valve train is a bit quieter with the T6. The problem is even worse in classic cars that solid lifters etc..In any event, more aggressive spring pressures and cam lobes need a little more protection than stock valvetrain.

Rotella T6
Valvoline VR1
Amsoil
some Mobil 1 product lines have a high amount

http://www.mobiloil.com/USA-English/...duct_Guide.pdf

senicalj4579

iTrader: (41)

If its the oil then why do we not here about other cam companies with the issues that comp has? Just a real question and dont think i'm bias because there is a comp cam in my car.