Help required Preload
Thread Starter
Teching In
Joined: Jun 2010
Posts: 2
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Help required Preload Hi guys, first post on here so please be gentle :-)
I have a 2006 LS2 in my Ultima GTR, with a comp cams xer-273 cam and 54200 uprated valve train kit, push rods 7.4 inch.
Revs to 7000 and produces about 500bhp
During a recent remap one of my lifters (standard GM) collapsed and luckily we spotted it before it caused any further damage.
I was going to order the pro-magnum lifters from comp cams (after speaking to them) as the replacement set.
After browsing the web it has become apparent that i will need to set up the pre load correctly. Im an engineer by trade but not motor, so im a keen learner, I do have the assistance of a very experienced race mechanic (doesn't usually work on LS's), but I cant find a straight forward explanation of how to set the preload on an LS2 with standard rockers, they seem to mount on a bar all the way across.
Question is can any of you guys a share a link to, or know of a printable procedure that can shed some light for me.
Thanks very much
Dave
I have a 2006 LS2 in my Ultima GTR, with a comp cams xer-273 cam and 54200 uprated valve train kit, push rods 7.4 inch.
Revs to 7000 and produces about 500bhp
During a recent remap one of my lifters (standard GM) collapsed and luckily we spotted it before it caused any further damage.
I was going to order the pro-magnum lifters from comp cams (after speaking to them) as the replacement set.
After browsing the web it has become apparent that i will need to set up the pre load correctly. Im an engineer by trade but not motor, so im a keen learner, I do have the assistance of a very experienced race mechanic (doesn't usually work on LS's), but I cant find a straight forward explanation of how to set the preload on an LS2 with standard rockers, they seem to mount on a bar all the way across.
Question is can any of you guys a share a link to, or know of a printable procedure that can shed some light for me.
Thanks very much
Dave
https://ls1tech.com/forums/showpost....93&postcount=3
ask and you shall recieve, follow the link and that should be all you need.
also, I'd recommend some morel/lunati link bar lifters...
ask and you shall recieve, follow the link and that should be all you need.
also, I'd recommend some morel/lunati link bar lifters...
Thread Starter
Teching In
Joined: Jun 2010
Posts: 2
Likes: 0
Hi Tainted thanks for that, although im not sure that was what i was looking for, or do i need adjustable pushrods if i have standard GM rockers. ....
or
cant i just replace the lifters, MUST I also replace the pushrods after getting the lifters. Thia is a bit of a pain as i;m in the UK and my parts come from the States
Why would you reccomend morel lifters over the Comp Cams?
Dave
or
cant i just replace the lifters, MUST I also replace the pushrods after getting the lifters. Thia is a bit of a pain as i;m in the UK and my parts come from the States
Why would you reccomend morel lifters over the Comp Cams?
Dave
Last edited by dave4367; Nov 28, 2012 at 04:59 PM. Reason: addition
