Comp Cam XE series POll
Thread Starter
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Comp Cam XE series POll
YOU HAVE MULTIPLE CHOICES PICK ALL THAT APPLY.
heres the rules, lets just make this a factual thread, If you have an XE series cam with first hand knowledge tell your story good or bad. please note grind number and if its in a SBC, BBC, hydraulic lifters or soild lifters. Remember at the bottom of the poll you can vote on if you would get another XE series cam....in my excitement of voting i forgot to vote that i would use another XE series cam.
IF YOU POST NEGATIVE INFO PLEASE TALK ABOUT IT IN A POST...
this will "validate" the poll info
I can see the % will be meaningless so we will need to compute them on our own...
i have an XE268h with 2000 miles on it in a sbc
heres the rules, lets just make this a factual thread, If you have an XE series cam with first hand knowledge tell your story good or bad. please note grind number and if its in a SBC, BBC, hydraulic lifters or soild lifters. Remember at the bottom of the poll you can vote on if you would get another XE series cam....in my excitement of voting i forgot to vote that i would use another XE series cam.
IF YOU POST NEGATIVE INFO PLEASE TALK ABOUT IT IN A POST...
this will "validate" the poll info
I can see the % will be meaningless so we will need to compute them on our own...
i have an XE268h with 2000 miles on it in a sbc
Last edited by bobs77vet; Jul 2, 2005 at 06:24 PM.
Team Owner
Joined: Feb 2005
Posts: 32,519
Likes: 1
From: central America
St. Jude Donor '08-'09
I'm extremely pleased with my XE268.
No problems with the cam, response, tuning (especially after Lars laid hands on it
) or drivability.
So far I'm sold on them.
trw
No problems with the cam, response, tuning (especially after Lars laid hands on it
) or drivability.So far I'm sold on them.
trw
Safety Car
Joined: Jul 2002
Posts: 3,770
Likes: 3
From: St Louis MO
XS274...solid FT...no reliability issues in the ~3,000 miles I have put on it. Nice hard-pulling cam that has a good lope to it.
However, it does buck on deceleration below 1600 rpm. Can that be solved by carb tuning??
However, it does buck on deceleration below 1600 rpm. Can that be solved by carb tuning??
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Roller cams are great you don't p'off the neighbours when your revving the motor between 2 and 3000RPMs for half and hour and you don't have to worry about it over heating, springing a leak etc. interupting the break in prceedure. WIth a roller you just add oil and go and you will go faster too because of the lightr load in your wallet 
Senior Member since 1492
Joined: Aug 2000
Posts: 87,922
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
XE 282-S (BB solid) but <1,000 miles on cam. Hope I'm not gonna jinx myself. 
Last edited by Jughead; Jul 1, 2005 at 11:54 AM.
Racer
Joined: May 2001
Posts: 401
Likes: 0
From: Carlsbad CA
My XE-268 was bery bery goot to me for a couple thousand miles or so. Then I wiped one of the lobes because I went with too much lifter preload. I will say with a great deal of confidence that my problem was not CompCam's fault.
I'm using a Lunati now, but only because the numbers are a little better for a TPI conversion.
I'm using a Lunati now, but only because the numbers are a little better for a TPI conversion.
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Thread Starter
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
lunch time results:
11 responses, 9 satsified (81%) , 2 had problems (19%) attributed 100% to either break in or installation problems
11 responses, 9 satsified (81%) , 2 had problems (19%) attributed 100% to either break in or installation problems
Thread Starter
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
mid afternoon results:
16 responses, 14 satsified (87.5%) , 2 had problems (12.5%) attributed 100% to either break in or installation problems
16 responses, 14 satsified (87.5%) , 2 had problems (12.5%) attributed 100% to either break in or installation problems
Instructor
Joined: Jun 2004
Posts: 220
Likes: 0
Wiped out 5 lobes and lifters in 10 minutes using Comp Cam break in procedure exactly as written by Comp Cam, using CC cam and lifters. Single spring valve train, no second spring to remove for break in. Was told by CC tech people " BB chevy's are notorious for wiping cams during break in" I am not making this up. XE 268 H in 69 427 390hp motor.
Thread Starter
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Originally Posted by 69monzaredbigblock
Wiped out 5 lobes and lifters in 10 minutes using Comp Cam break in procedure exactly as written by Comp Cam, using CC cam and lifters. Single spring valve train, no second spring to remove for break in. Was told by CC tech people " BB chevy's are notorious for wiping cams during break in" I am not making this up. XE 268 H in 69 427 390hp motor.
thanks for posting.... heres the other guys who have had problems also
i didn't see that they posted yet. again my purpose here is put this all out on the table once and for all, and the chips fall where they may.
80texasc3...wiped two and installed a third one (he gets the brass ***** award )
73c34me..wiped one...
money pit had a failure on one XE and success with another
Last edited by bobs77vet; Jul 1, 2005 at 09:26 PM.
Melting Slicks
Joined: Jul 2002
Posts: 3,000
Likes: 22
From: Boulder Creek California
I suspect that this is a case of bad statistics. I don't know what the market shares are but it seems to me that CompCams sell a hell of a lot of cams compared to other companies. Maybe they've just got more hype? Anyhow, if more people use them, then obviously more failures are going to happen. (For instance, most people use Windows so... ok, bad example)
Good example: The authorities here in the Raleigh-Durham-Chapel Hill triangle have been targetting argressive drivers because two counties in the triangle are "among the top 5 most dangerous in the state." Well guess what, the only larger population area in the state is Charlotte and I bet it has at least 2 dangerous counties of its own.
-Chris
Good example: The authorities here in the Raleigh-Durham-Chapel Hill triangle have been targetting argressive drivers because two counties in the triangle are "among the top 5 most dangerous in the state." Well guess what, the only larger population area in the state is Charlotte and I bet it has at least 2 dangerous counties of its own.
-Chris
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by LiveandLetDrive
I suspect that this is a case of bad statistics. Anyhow, if more people use them, then obviously more failures are going to happen.
-Chris
-Chris
But as long as thread lives and people add to it, the better it will be. I would expect it to reasonable for 1 out of every 200-500 cams to wipe lobes very quickly. With a backyard do-it-yourselfer the amount that go bad should be higher versus having it put in by an experienced mechanic. In my opinion if more than 2% are having premature wear, that is signaling there is a problem somewhere. One thing the poll will show is there is a high rate of failure, but the big question is do they have a higher failure rate versus less aggresive cams.
Last edited by mandm1200; Jul 1, 2005 at 05:08 PM.