View Poll Results: Did you spin a bearing after a cam swap?
Yes in less than 1000 miles
8
15.09%
Yes in less than 5000 miles
2
3.77%
Just installed and working great
7
13.21%
5000+ Miles since install and no problems
36
67.92%
Voters: 53. You may not vote on this poll
Poll: For those with cammed LT1s
Registered User
Joined: Oct 2000
Posts: 1,997
From: Reading, PA
I didnt fall into any of your categories but #4 was closest. I have about 3k miles on mine since installing the hotcam kit and everythings fine. Its mainly a weekend car since I installed it but when I get to drive it it gets driven very hard. About 20 passes at the track since installing it and the motor is running excellent with 60k on it, stock bottom end.
Registered User
Joined: Jul 2000
Posts: 1,880
From: Norfolk, VA. USA
My brother did heads and cam on his 96 Trans Am and then spun every bearing in the motor in under 5K miles.
I think it may have been due to the fact that the motor had over 210K miles on it and was driven hard pretty much all the time. Oh, and I think it didn't like 7K rpms either.
I think it may have been due to the fact that the motor had over 210K miles on it and was driven hard pretty much all the time. Oh, and I think it didn't like 7K rpms either.
Last edited by Zepher; Jun 22, 2004 at 02:22 PM.
Registered User
Joined: Mar 2002
Posts: 3,634
From: Newark, Delaware
You might want to also ask how many that spun bearings mistakingly used moly lube when they installed a roller cam that doesn't need it.
CC305 has been in for 2000 miles. The bottom end has 95,000 on it now. I shift at 6200 RPM...With an automatic. It holds 60# of oil pressure while running 50 MPH...Idles at 35#/hot...AND...I can assure you that it never gets babied
Frank
CC305 has been in for 2000 miles. The bottom end has 95,000 on it now. I shift at 6200 RPM...With an automatic. It holds 60# of oil pressure while running 50 MPH...Idles at 35#/hot...AND...I can assure you that it never gets babied
Frank
Thread Starter
Registered User
Joined: May 2002
Posts: 1,025
From: Saskatchewan, Canada
So by the looks of it well over 50% of the people who swap cams get away without any troubles. Maybe its not the cam doing the damage but all the junk that gets in the motor while its torn apart? Keep em comin 
Registered User
Joined: Apr 2001
Posts: 2,195
From: Springfield, IL
Originally posted by 12SCNDZ
You might want to also ask how many that spun bearings mistakingly used moly lube when they installed a roller cam that doesn't need it.
You might want to also ask how many that spun bearings mistakingly used moly lube when they installed a roller cam that doesn't need it.
i just used good ole engine oil on cam
Registered User
Joined: Jul 2002
Posts: 292
From: Philly, PA
Someone just touched on my question - is spinning a bearing mostly due to engine contamination rather than engine modification? I mean it just seems weird that so many people mod their cars, but when it comes down to doing a cam swap, it seems to be instant engine failure?! What gives?
My car is stock bottom end @ 74k...with a TPIS ZZ9 cam in it that has been in since 40k. NO PROBLEMS...
The reason I am even concerned even though my car is in good health, is that I was considering a second cam swap to something a little larger, perhaps a CC305 or something...the TPiS is a tad bit smaller than a HOTCAM. Any input regarding either issue?
My car is stock bottom end @ 74k...with a TPIS ZZ9 cam in it that has been in since 40k. NO PROBLEMS...
The reason I am even concerned even though my car is in good health, is that I was considering a second cam swap to something a little larger, perhaps a CC305 or something...the TPiS is a tad bit smaller than a HOTCAM. Any input regarding either issue?
it's got 96,000km on it
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
Oct 31, 2016 11:09 AM
oldschool
Parts For Sale
16
Feb 9, 2016 09:21 PM