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Comp Trunnions after 12K Miles

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Old 04-11-2017, 05:45 PM   #21
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Usually true, but the Dorman manifolds seem to work, and fairly well by reports on these forums.
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Old 04-11-2017, 10:10 PM   #22
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I have a new set Brian Tooley Racing roller trunions and one had a hell of a flat spot right out of the box. They were nice enough to just send me another one but after close inspection, several of them are ****. They seem to be almost exactly like the comp kits I've installed. They say made in the USA on them. I guess there are **** products made everywhere. I decided not to install them on my motor at all and ordered the Straub kit. We'll see how they handle the riggers of the drag strip.
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Old 04-12-2017, 07:07 AM   #23
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Ordered the Straub kit yesterday !!! Anyone what to buy a Comp Cam Kit ? LOL !!!
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Old 04-12-2017, 05:42 PM   #24
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Ordered the Straub kit yesterday !!! Anyone what to buy a Comp Cam Kit ? LOL !!!
I believe, I'll pass on it.
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Old 04-12-2017, 07:45 PM   #25
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I offered to send BTR a few good machine shops that could manufacture the trunions out of good material with the proper finish, but I never heard back. I guess they like selling junk.
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Old 04-12-2017, 09:04 PM   #26
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4000 miles on my straub kit and they looked perfect. Dads set will about the same miles are getting inspected next week
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Old 04-12-2017, 09:08 PM   #27
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Got mine today. Will be replacing the Lunati/Comp/whatever Trunnions and will inspect them. Only have about 2500 miles on them.
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Old 04-16-2017, 01:01 PM   #28
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Originally Posted by joyridin' View Post
If they would spend a few more bucks and use an inner race, this problem would be non-existent. They would probably have to charge an extra $20, but they would last 120k miles instead of 12k and you wouldn't be replacing them again.

Built in obsolescence is the name of the game!
Whaaaaaat?! You don't mean just like the OEM trunnions do you? That would be crazy talk... I love seeing the Cracker Jack box engineering degrees at work at Comp.
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Old 04-16-2017, 02:20 PM   #29
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I use Jesel or TD machine adjustable rockers and never a problem only get what you pay for .

Those name brand are fully rebuild able as well TD only charge the price of the parts replaced and rebuild them themselves.
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Old 04-16-2017, 03:57 PM   #30
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Which one does TSP sell?
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Old 04-17-2017, 08:19 AM   #31
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I got her fired back up this weekend with the Straub bushings and it's great so far. Top end is definitely quieter with less sewing machine noise. Install was super easy and everything fit and felt great.
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Old 04-18-2017, 12:24 PM   #32
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I got her fired back up this weekend with the Straub bushings and it's great so far. Top end is definitely quieter with less sewing machine noise. Install was super easy and everything fit and felt great.

Thank you. What we hear the most is what the customer doesn't hear anymore. Overwhelming feedback from customers is that it is the quietest LS engine they have ever heard after the trunnion install.
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Old 04-18-2017, 10:15 PM   #33
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So happy people have been making these threads over the past year, as it motivated me to check mine after 5k on them. Needless to say, I had the same problems and mine were BTR (no hate, I like BTR a lot!).

I switched to Straub 15k miles ago and haven't heard any odd noises, but admittedly haven't had the valve covers off to really check. My cammed g8 is a true daily driver and my only car. It's also probably the first car I ever modded that was truly set and forget. You get what you pay for.

Last edited by mchicia1; 04-18-2017 at 10:28 PM.
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Old 04-19-2017, 12:41 PM   #34
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Now officially nervous. I'm reading this literally 500 miles after doing a Summit trunion install. Engine is a bone stock LS3 though, so hopefully that will be a saving grace...

Looking for wood to knock on, but only finding Formica in my immediate area.

Last edited by 1981TA; 04-19-2017 at 02:10 PM.
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Old 04-19-2017, 07:58 PM   #35
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So happy people have been making these threads over the past year, as it motivated me to check mine after 5k on them. Needless to say, I had the same problems and mine were BTR (no hate, I like BTR a lot!).

I switched to Straub 15k miles ago and haven't heard any odd noises, but admittedly haven't had the valve covers off to really check. My cammed g8 is a true daily driver and my only car. It's also probably the first car I ever modded that was truly set and forget. You get what you pay for.
Pull them and cut your losses.
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Old 04-21-2017, 12:44 PM   #36
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I don't understand why these aren't hyped more here. These are the ones I bought. You don't need a press to install them, just a pair of snap ring pliers, the bushings rotate in the bore for even wear, the bushing material used has been used in their trunions since 2006 and valve guides for 30 years so it's pretty well proven and you are supporting a LS1Tech Sponsor. If the link doesn't take you right to the post it is post #702 in this thread. https://ls1tech.com/forums/generatio...l#post19476216
I'm not saying the Straub kit is a bad product but I think the CHE kit is better. Yes I know they are priced higher but sometimes better costs more.
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Old 04-21-2017, 03:46 PM   #37
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Did your engine fail because of the damage in the photos or did you just take them out to inspect? I have some on mine about 3 years old and I want to check now
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Old 04-22-2017, 12:49 AM   #38
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Did you check the side-to-side play with a micrometer after installing them? I have the Summit ones and I am hoping that this won't be an issue down the line. I did set the clearance within spec on all 16 though.
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Old 04-22-2017, 10:32 AM   #39
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Quote:
Originally Posted by baronsmith98 View Post
Did your engine fail because of the damage in the photos or did you just take them out to inspect? I have some on mine about 3 years old and I want to check now
No, no damage that I know of but there was some visible meta around the rocker pedestals so I'm glad I removed them when I did.
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Old 04-22-2017, 02:33 PM   #40
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I just checked my BTR's and they looked like new. I have about 6k on them.
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