OK so I have personally installed 77 sets of Evo cams thus far and that does not leave many sets I am not familiar with.

Compcams started out with a good value and price point. The first two sets installed great, just like they came from the factory.

Soon thereafter **** hits the fan. For no rhyme or reason they start sending out odd sized bolts to use on the cam position sensor. 3rd set adds another step and their bolt fits, problem avoided.

4th set installed they again include an aftermarket bolt for the cam position sensor. This time I go to insert it in the end of the cam and it pushes freely all the way in without contacting any threads. The bolt is not the right size or thread pattern for the threads. The stock bolt does not fit either. Now were ****ed as we are into the job 45min. I have to go to two parts stores and then Lowes to find a bolt that will at least temporarily fit the cam and get the guy tuned and home where he plans to contact Compcams and get a suitable bolt to fit. After wasting another two friggin hours we recommence and finish the job. (REVMOTO)

The 5th set another guy brings me and as soon as he says "Comp cams" I am like "you're not gonna F me this time you friggin cams". So I have a spare cam position bolt laying around and proceed to see if it fits the threads. Amazingly it does. Problem avoided? I thought so.

Next thing you know all the cam caps are tight and I am inserting the cam position sensor bolt and a 1/4 inch from tight, the bolt stops in its tracks. The idiots at Compcams did not tap the threads far enough and I find myself "screwed by Compcams" once again. I did not have any cutoff wheels left so I located a spare camgear bolt and it fit. (Threads were shorter). Fortunately the threads were the right pitch and the bolt was the right size, however the head of the bolt was larger so it did not allow a socket to fit over it. I had to machine a socket down in order to make clearance to fit in the cam trigger.





The moral of the story?

If you are thinking about Compcams, think again. It just might be you screwed by them next time around. They are cheap for a reason. No quality control. I am embarassed as an american to install this american made crap in Evos.

I have been meaning to post about this for a while. Another frustrated post I read elsewhere about other Evo owners complaining about Compcams reminded me I needed to do this. BEWARE!

For the record GSC and HKS cams have NEVER given me a fitment problem. I highly recommend GSC for their quality, price point, fit, finish and AVAILABILITY.

/rant off

 

Haha you know what, when I got my comp cams I found there was still metal where they tapped the screw for the cam sensor. I had to get an air gun and spray in there. They do make power though can't deny that lol.

 

hmm.. ttp you notice a pretty big difference in these and the hks power wise due to the added lift on the comps.. im talking about the 280's

 

why didn't you use a hack saw to cut off the longer bolt. surely, you have a hack saw laying around.

 

We had a similar issue with the cam position sensor bolt.

The bolt threaded in fine but was just a bit loose. Short of the long, the bolt backed out, the cam gear spun, and the valves bent. Sweet.

I think that was the last set of Comps we installed. I still have the cam here at the shop...need to send it back to them to get a replacement....or do I....


We informed them of the issue, and they claimed to know nothing about any bolt hole issues.


Oh well. I run HKS cams.

Cory

 

Well, I'm glad I went with the HKS cams!

 

Thanks for the heads up. Last thing anyone should do is install crap internals :\

 

you're going to love this "new" feature on their site:

http://www.compcams.com/Information/...t/FeedBack.asp

 

If you want well made cams that are a good price get Brian Crower cams.

 

To be honest (since we are also a manufacturer of machines and parts) I doubt their cams are actually crap in terms of the lobe profiles and that. It's just that on a part there are a lot more dimensions that need checking than you'd imagine. The QC guy only has a certain number of minutes to check each one and so only 'critical' items are checked carefully and thoroughly. It's a practicality thing as much as anything else. I mean they have to check it anyway, but the guy probably just stuck the end of a vernier in the hole and ticked the box. It happens, unfortuantely. But really for the price of these things, they should be able to do better, specially now they know that it's a problem...

 

I have not noticed any substantial gains over other cams. They seem to put out similar numbers only they cannot take very much ignition timing at all.

 

hahahaha TTP: had the exact same problem with a set of comp cams i put in a customers car. the stock bolt threaded in, but bottomed out before getting all the way in. doh! had to take the bolt to the machine shop and grind it a little shorter. such a pain in the ***. you would think a machine shop could get something like that right.

 

I was gona get these but im gona go with the GSC ones since they seem to be getting very good results

 

So you guys are crying about a bolt that needs to be modified/replaced what does that cost like 20 cents? CompCams Makes CAMS. I dont think its fair to drag their name through the mud because of one bolt. Let me ask you this did you ever once call CompCams to inform them of your problem? And if so what did they do about it?

 

Glad you asked!

Well, after a comp cam destroyed a customers' Evo head, we called comp and they did confirm that there was some sort of issue with the tap / bolt; it was too tight before, all of a sudden it was too loose. They said they will replace the cam - great. We sell and install comp cams, but I don't think I would go out of my way to recommend them over say HKS or etc.