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Re: Are COMP cams junk? [Re: Cab_Burge] #1662509
08/25/14 09:41 AM
08/25/14 09:41 AM
Joined: Feb 2005
Posts: 4,313
Prospect, PA
BSB67 Offline
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BSB67  Offline
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Prospect, PA
Quote:

Quote:

Quote:

Life used to be so simple.
You called Iskendarian and talked to Ed...





Commando1, that's a great statement. Where did the good ol' days go! By the way, where did Ed go?


he retired some time ago, his two sons, Ron and Richard run the business now Thay haven't done much research and develoment in a lot of years on thier cams in todays world of racing if your not going forward your going backwards




I think that is only true in the world of 50 year old Mopar stuff.

Re: Are COMP cams junk? [Re: BSB67] #1662510
08/25/14 09:59 AM
08/25/14 09:59 AM
Joined: Nov 2004
Posts: 7,274
s.w.fl
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bonefish Offline
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s.w.fl
Quote:

Quote:

Quote:

Quote:

Life used to be so simple.
You called Iskendarian and talked to Ed...





Commando1, that's a great statement. Where did the good ol' days go! By the way, where did Ed go?


he retired some time ago, his two sons, Ron and Richard run the business now Thay haven't done much research and develoment in a lot of years on thier cams in todays world of racing if your not going forward your going backwards




I think that is only true in the world of 50 year old Mopar stuff.


a lot of places still have Ed.unfortunatly its Mr.ED.

Re: Are COMP cams junk? [Re: BSB67] #1662511
08/25/14 10:43 AM
08/25/14 10:43 AM
Joined: Mar 2007
Posts: 9,336
South-Central (Sebring), FL
Commando1 Offline
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Commando1  Offline
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Posts: 9,336
South-Central (Sebring), FL
Quote:

Quote:

Quote:

Quote:

Life used to be so simple.
You called Iskendarian and talked to Ed...





Commando1, that's a great statement. Where did the good ol' days go! By the way, where did Ed go?


he retired some time ago, his two sons, Ron and Richard run the business now Thay haven't done much research and develoment in a lot of years on thier cams in todays world of racing if your not going forward your going backwards




I think that is only true in the world of 50 year old Mopar stuff.



In some ways, just some, that most people won't understand is, the 50 year ways worked best.

Re: Are COMP cams junk? [Re: 69/70 Plymies] #1662512
08/25/14 12:48 PM
08/25/14 12:48 PM
Joined: Jul 2012
Posts: 323
Endicott, NY, USA
crazyjjk Offline
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crazyjjk  Offline
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Endicott, NY, USA
Rarely is the cam ever the problem. Almost always it is the lifters not spinning in their bores. I always install the cam into the engine before final installation and install all the lifters and nothing more. With plenty of lube on the camshaft and lifters I hook up a drill to the camshaft and spin the camshaft and make sure all the lifters are spinning in there bores. If they are not that is where you are going to have a problem. Fix it before you proceed or you will wipe out a lobe.

Re: Are COMP cams junk? [Re: 69/70 Plymies] #1662513
08/25/14 02:17 PM
08/25/14 02:17 PM
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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Triggerfish Offline
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Blairsden, CA
Installed a small comp hyd cam in my 383 mag & did the break in
with recommended comp cams breakin lube, bottle of Trick Flow break
in additive with 20/50 Castrol GTX. Made sure the lifters were spinning. No problems & still runs fine.

Re: Are COMP cams junk? [Re: jlatessa] #1662514
08/25/14 05:10 PM
08/25/14 05:10 PM
Joined: Jan 2003
Posts: 8,028
The Grand State of Confusion-O...
SKR8PN Offline
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The Grand State of Confusion-O...
Quote:

Plus you need an oil with the proper chemistry for flat tappet
protection, normal car oil for modern cars cannot protect a flat tappet cam.

You'll need to add ZDDP or other additive for this.

Also you can choose to use one of the many oils advertised for that specific purpose, I use Valvoline VR-1, but there are others.

VERY IMPORTANT!!!

Joe





^^THIS!!^^ Is more important than anything else you do for camshaft break in. I use Shell Rotella T and an additive on every break in I do and I have yet to have a cam/lifter failure.


Karma has no menu. You get served what you deserve.
Re: Are COMP cams junk? [Re: Scott Carl] #1662515
08/25/14 08:52 PM
08/25/14 08:52 PM
Joined: Jan 2007
Posts: 7,664
IN
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ahy Offline
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High spring pressure and high lift are certainly factors in failures. Less risk with a stockish cam. Still, all steps mentioned above apply. Make sure lifters spin, pre-lube, use high zinc oil, fire it fast and keep at 2000+ RPM for 20-30 min.

Re: Are COMP cams junk? [Re: ahy] #1662516
08/26/14 12:31 PM
08/26/14 12:31 PM
Joined: Aug 2008
Posts: 1,568
Omaha, Nebraska
Scott Carl Offline
pro stock
Scott Carl  Offline
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Posts: 1,568
Omaha, Nebraska
Pre oiling the engine is something else my engine guru stressed. (Sorry if this has been mentioned) I understand they manufacture them but I made mine; an oil pump shaft connected to drill will pump oil through all the passages. This prevents dry spinning bearing and rings and such with the starter. It can take several seconds to get oil to all the moving parts especially if you don't get around to break-in for a couple years after build. I made mine from a couple old pump to cam shafts. Cut the gears off and welded end to end.

Re: Are COMP cams junk? [Re: Scott Carl] #1662517
08/26/14 02:17 PM
08/26/14 02:17 PM
Joined: Jan 2003
Posts: 75,005
U.S.S.A.
JohnRR Offline
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U.S.S.A.
Quote:

I need to quit reading these "cam horror story" posts until I break mine in I have the XE256H-10 for my 318 build. I bought it too long ago and due to life getting in the way still haven't fired it up. Is there any recourse for a failed cam after the warranty period has passed even if it hasn't been run? I understand that most of the cam failures are the more radical grinds than mine. True?(Its supposed to be what would be like stock for a 340 or 360(?))

Scott




I doubt you'll get any satisfaction now , check and make sure the lifters spin , break it in with old stock springs then switch to the required springs after break in.

It's not usually the cam it's the lifters , when 1 of the few remaining flat tappet lifter makers filed chapter 11 the company that cam in and sold off assets flooded the market with bad lifters was the story I heard.

Re: Are COMP cams junk? [Re: JohnRR] #1662518
08/26/14 05:48 PM
08/26/14 05:48 PM
Joined: Jun 2013
Posts: 870
Keizer, Oregon U.S.A.
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elmor353 Offline
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Keizer, Oregon U.S.A.
I have found spring pressures recommended by Comp Cams are extreme in a lot of cases. I have experienced this first hand using Comp components. Wiped a cam within 50 miles of break in. Bought another cam and set of lifters, same part numbers, but used a set of Crane springs with less pressure and spring rate. Four years now and it runs great.

Re: Are COMP cams junk? [Re: elmor353] #1662519
08/26/14 07:45 PM
08/26/14 07:45 PM
Joined: Jul 2008
Posts: 259
Khemi, Stygia
Mebsuta Offline
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Mebsuta  Offline
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Posts: 259
Khemi, Stygia
Quote:

I have found spring pressures recommended by Comp Cams are extreme in a lot of cases.




That's what I was thinking. To my knowledge, the orginial 383-440 HP valves springs are like this:

Melling VS430 (crossover Sealed Power VS675, Elgin RV891X, P4286812). That’s what the Melling catalog said to use with 383 HP cam.

Free height 2.230
OD 1.484/1.504
ID 1.070/1.09
Wire size .207
Closed pressure 100-110
Open pressure 236-256
Coils 6.25 RH


68 Roadrunner. 383 4-spd. Beat up.
Re: Are COMP cams junk? [Re: Mebsuta] #1662520
08/26/14 11:41 PM
08/26/14 11:41 PM
Joined: Aug 2005
Posts: 4,799
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MLR426 Offline
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No they don't make junk cams, I was just in Comp Cams today making a sales call on them and working with the engineers there with cam grinding wheels.
Comp Cams didn't become a leader in the cam industry by putting out junk cams. They are well advanced with superabrasive high speed CBN abrasives in CNC machining cells and offer top quality cams. They do all forms of racing and they take care of the highest quality race teams across the country and world wide. Bad lifters and the untreated shelf oils contributed to the fail cams.

MLR426

Re: Are COMP cams junk? [Re: MLR426] #1662521
08/26/14 11:52 PM
08/26/14 11:52 PM
Joined: Aug 2008
Posts: 1,568
Omaha, Nebraska
Scott Carl Offline
pro stock
Scott Carl  Offline
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Posts: 1,568
Omaha, Nebraska
Quote:

No they don't make junk cams, I was just in Comp Cams today making a sales call on them and working with the engineers there with cam grinding wheels.
Comp Cams didn't become a leader in the cam industry by putting out junk cams. They are well advanced with superabrasive high speed CBN abrasives in CNC machining cells and offer top quality cams. They do all forms of racing and they take care of the highest quality race teams across the country and world wide. Bad lifters and the untreated shelf oils contributed to the fail cams.

MLR426




What about comp lifters? Bought my cam, lifters and springs as a set from Summit but all came in "Comp" packaging.

Re: Are COMP cams junk? [Re: Scott Carl] #1662522
08/27/14 12:00 AM
08/27/14 12:00 AM
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Porter67 Offline
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Ive never had an issue with a comp solid, only issue was a Mopar purpleshaft from the 90-s where the very rough cast cam core started to flake off on the edges, worse then killing a lobe in the end.

Re: Are COMP cams junk? [Re: Porter67] #1662523
08/27/14 12:30 AM
08/27/14 12:30 AM
Joined: Nov 2007
Posts: 21,822
Kirkland, Washington
Pacnorthcuda Offline
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Kirkland, Washington
Quote:

Ive never had an issue with a comp solid, only issue was a Mopar purpleshaft from the 90-s where the very rough cast cam core started to flake off on the edges, worse then killing a lobe in the end.




So basically it 'flake off and died" ???

Re: Are COMP cams junk? [Re: Pacnorthcuda] #1662524
08/27/14 12:33 PM
08/27/14 12:33 PM
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Porter67 Offline
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Actually the debris did not come off the lobe but more off the base circle and its just a whacked cam. I just took pics if you want them I can email as I don't want to go off topic here.

Im I just getting old or what? Too much noise from a cam/lifters?

Nothing sounds sweeter then a good solid flat tappet setup, as well as some of the hydro setups.

I got to ask,are the noise complainers in there 30-s?

When you pull up to a stoplight and you know its gonna be go time on green, that noise so many complain about is one factor one would quickly process. No noise and a lope meant hydro and more then not a easy run. The rhoads? lifters had a distinct sound and that meant hydro cam owner with dream.

A real flat solid flat tappet you could listen to the exhaust and if it was a stick car id just hope he spun a little and he would be smoked.

A high lift solid roller, one of two things. If its a good setup and he hooks, im done. If it was brought on a trailer its off. If its not dialed in, c ya.

If it sounded like a gm diesel with the loose pistons, another consideration.

I get in our newer suv and start it and I have to ask myself is it running?

If your stuck with a solid lifter cam by choice or class and are that worried, it doesn't cost that much more to have the solid FT lobes ground on a roller core, gee guess who does it? Comps cams.

Ive had great results with most comp products, and not with some. I do not know who does there pushrods or at one point there lifters.

They could not a good set of pushrods to me until the 3rd try. Multiple issues with the first two sets.

The edm lifters had the edm hole vary and one had what looked like a hole but it wasn't all the way through.

Now every order I get direct from comp says re-check all parts! As I will send them back in a heartbeat. They expect to get paid so I expect good quality parts.

I actually had a guy pull in the lot with a pinto on a trailer to run my 440-6 RR. He got laughed at so much he didn't unload it and just left.

Re: Are COMP cams junk? [Re: Scott Carl] #1662525
08/27/14 01:46 PM
08/27/14 01:46 PM
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406 Offline
I Live Here
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Posts: 12,271
Overpriced Housing Central
Quote:

What about comp lifters? Bought my cam, lifters and springs as a set from Summit but all came in "Comp" packaging.




I don't believe any of the cam manufacturers make their own std hyd flat tappet lifters. Most are farmed out to places like Johnson and placed in the company boxes.

Re: Are COMP cams junk? [Re: RobX4406] #1662526
08/27/14 03:25 PM
08/27/14 03:25 PM
Joined: Aug 2003
Posts: 43,173
Bend,OR USA
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Cab_Burge Offline
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Bend,OR USA
Quote:

Quote:

What about comp lifters? Bought my cam, lifters and springs as a set from Summit but all came in "Comp" packaging.




I don't believe any of the cam manufacturers make their own std hyd flat tappet lifters. Most are farmed out to places like Johnson and placed in the company boxes.


That be true


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Are COMP cams junk? [Re: Cab_Burge] #1662527
08/27/14 04:16 PM
08/27/14 04:16 PM
Joined: Jan 2003
Posts: 12,799
East Bay, N. Cal.
calmopar Offline
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Posts: 12,799
East Bay, N. Cal.
Am I the only one here running an Erson cam?


Trying to enjoy life!
Re: Are COMP cams junk? [Re: Cab_Burge] #1662528
08/27/14 11:58 PM
08/27/14 11:58 PM
Joined: Jan 2003
Posts: 15,357
Omaha Ne
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TJP Offline
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Omaha Ne
Quote:

Quote:

Quote:

What about comp lifters? Bought my cam, lifters and springs as a set from Summit but all came in "Comp" packaging.




I don't believe any of the cam manufacturers make their own std hyd flat tappet lifters. Most are farmed out to places like Johnson and placed in the company boxes.


That be true




Could be but in all manufacturing there are different quality levels and TEST standards. Back to the OP's question yeah,
They are all junk,if you buy the low end stuff. RE: Comp cams???? They are My first choice and have been for 30+ years. One failure in 500+ motors and they promptly took care of it. NUFF SAID!
BTW do not believe everything you read on internet forums.

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