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What's up with Comp Cams ?

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Old 02-25-2014, 08:08 PM
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Why are you posting all of this?
Old 02-25-2014, 08:20 PM
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Originally Posted by JakeFusion
Why are you posting all of this?
Simple answer . . . It shows what Comp Cams has "told" people, "promised" people, and "sold" people . . . Now, with the problems shown in this thread, it shows us what they actually "bought", in comparison !

Last edited by ez2cdave; 02-25-2014 at 08:43 PM.
Old 02-25-2014, 08:37 PM
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Originally Posted by ez2cdave
Martin@Tick has been working with "Billy@Comp", whom I believe to be Billy Godbold, the Engineering Group Leader at Comp Cams.

Here is a "rah-rah" article from 2011, BEFORE these problems appeared . . . Makes me wonder how much was only "HYPE", given what we see now.

http://www.practicalmachinist.com/vb...hining-237600/
Good info, thanks for sharing that.
Old 02-25-2014, 08:53 PM
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Originally Posted by ez2cdave
Simple answer . . . It shows what Comp Cams has "told" people, "promised" people, and "sold" people . . . Now, with the problems shown in this thread, it shows us what they actually "bought", in comparison !
You make it sound like everyone that is running a comp cam is having issues.
Old 02-25-2014, 08:56 PM
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Originally Posted by poltergeist 02
You make it sound like everyone that is running a comp cam is having issues.
Not really . . . I am simply basing things on what has been reported here, both by individuals and vendors, too. Read the entire thread, all 456 posts of it, so far. I did and didn't like the "pattern" of what I saw, at all.
Old 02-25-2014, 09:07 PM
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Originally Posted by ez2cdave
Not really . . . I am simply basing things on what has been reported here, both by individuals and vendors, too. Read the entire thread, all 456 posts of it, so far. I did and didn't like the "pattern" of what I saw, at all.
Who manufactured your cam?
Old 02-25-2014, 09:30 PM
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I haven't watched the videos but I'm assuming they don't follow the article you posted? I have to admit all of that looks like gobilty gook to me.
Old 02-25-2014, 09:37 PM
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Originally Posted by poltergeist 02
Who manufactured your cam?
No one, yet. I'm going to have Kip @ Cam Motion grind it for me !
Old 02-25-2014, 09:40 PM
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Originally Posted by JakeFusion
I haven't watched the videos but I'm assuming they don't follow the article you posted? I have to admit all of that looks like gobilty gook to me.
They show the "dog & pony show" that Comp promotes to sell items. The thread belies those claims by showing hard evidence of bad quality control by Comp Cams.

I'm sure that Comp will fix things, eventually, but I won't trust their cams for quite some time, until enough time has passed that the "old units" are gone from vendors. That would probably take at least 2 years, possibly longer.
Old 02-25-2014, 09:44 PM
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I don't think you can claim that from any of that. Their process is their process. It seems to work for the vast majority of cams.

Is there an issue? Possibly. Is it related to their process? Probably not. QC would be an audit of the process. QA would look at the broader problems and determine if the process, materials, surface hardening, polishing etc were the culprit. But they'd need to do a root cause analysis of failures... Which so far has not be acknowledged that there is even an issue.
Old 02-25-2014, 11:48 PM
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I was a victim of the bad run of springs Comp had for LT1 engines. Dropped a valve and it caused enough havoc to destroy the head, piston & cylinder bore. I scrapped the car to move up to an LS1 car.

Not a camshaft failure but it left me with a lasting bad taste for Comp products. My current build has a Lunati core.

Last edited by Paul Bell; 02-26-2014 at 07:34 AM.
Old 02-26-2014, 05:05 AM
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I had issues with them several years ago when they had problems with the 918 springs, I dropped a valve in tore up the motor and they paid to have it all fixed heads and all.

I am sure they will do the stand up thing once they have determined what the problem is.
Old 02-26-2014, 07:38 AM
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The Comp 918s carry quite a reputation don't they....
Old 02-26-2014, 08:18 AM
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This is a quote from an AMSOIL press release dated June 2011 discussing zinc (ZDDP) in motor oils;

The problem did not show up in newer cars because they employ a roller cam instead of the flat tappet. But street rod guys and engine builders were running into problems they’d not had experienced before.

First off, the cams themselves are somewhat soft. They need to be heat cycled which will season it, making the metal on it very hard and resilient to wear. It also needs to be broken in. That is each lobe on the camshaft is mated, so to speak, to a lifter. All the little imperfections on that lobe need to match all the imperfections on the lifter and that usually takes place within the first 15 to 20 minutes of that engine’s run time. So when you first start it, all of this is going to take place and that break in procedure produces heat. The lobes on the cam are not pressure lubricated like the bearings in the engine would be. They’re splash lubricated so they’re getting run off oil from the cam galley, getting splashed from the crank shaft when the engine is running. Because that’s all that lubricates these parts, anti-wear additives are critical in this area.
Old 02-26-2014, 08:20 AM
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^^^ Very good post and great information.
Old 02-26-2014, 08:45 AM
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Originally Posted by jim1450
I've heard the original good 918s were made by PAC in the USA, I don't know all the people that made them but pretty sure the bad ones were made by Associated Spring in Brazil.
Gotta love the imported stuff.
http://www.barnesgroupinc.com/about-bgi/locations.aspx
I have designed lots of springs which went into production at Associated Spring in their various locations. Associated Spring always supplied exactly what I specified. If my spring didn't work correctly, it was because I produced a poor design, and this actually happened a couple times, and I had to fix the problems.

You can't just blame the vendor, Comp may have cost reduced the spring in more ways than just a vendor change.

And frankly, I've designed alot of products and put them into production, and I find quality control out of lower cost geographies is really no worse than quality control out of the USA. This is first hand experience.
Old 02-26-2014, 09:01 AM
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There's a reason I run CAM2 blue blood because it has the highest concentration of zddp out there.
Old 02-26-2014, 01:15 PM
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Originally Posted by The Alchemist
There's a reason I run CAM2 blue blood because it has the highest concentration of zddp out there.
Is this an additive you add when you do an oil change, or a brand of oil?
Old 02-26-2014, 01:20 PM
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I use Rislone zddp + m1 0w-40 or m1 5w-30 high mileage.

You can get it all at local parts stores.
Old 02-26-2014, 01:29 PM
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From what I've seen, the VR1 oil I use is at the top of the list regarding zddp levels.


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