Trex Cam question
Trex Cam question I am looking into buying a trex cam. and everyone says they have valve clearance issues, afte taking the heads off my buddies car we found his valves were kissing the pistons a lil. he has the basic trex with 110lsa..
My question is, if you had a custom grind trex with 111lsa or 112 would that help with valve clearance??
I
My question is, if you had a custom grind trex with 111lsa or 112 would that help with valve clearance??
I
i dont believe the LSA would make a difference its more the Duration/Lift setup on that cam, which is through the room as far as duration for a 346. That cam puts down some serious times/numbers though. Looking back on it i should have gone TREX v.3 not my MS4 
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Joined: Feb 2007
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From: chicago
Don't get me wrong, baby and mid sized cams get the job done well
But from the moment I heard a Trex car and saw what kind of power they were making I knew I had to have this cam.
As for the heads, I believe they are 68cc, they are not milled and I did not flycut the pistons
I don't drive it daily, if your wanting a cam for a daily driver, this is prob not the type of cam your looking for, any big cam can be tuned to drive excellent though. I would suggest something in the 228-230's range for a daily.
But from the moment I heard a Trex car and saw what kind of power they were making I knew I had to have this cam.
As for the heads, I believe they are 68cc, they are not milled and I did not flycut the pistons
I don't drive it daily, if your wanting a cam for a daily driver, this is prob not the type of cam your looking for, any big cam can be tuned to drive excellent though. I would suggest something in the 228-230's range for a daily.
I completely disagree with this statement. I have dyno tested these two camshafts side by side on the engine dyno. If you'd like your welcome to come down & compare the two side by side on my engine dyno.
Jason
Jason
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
not to thread hijack.... but will my -4cc valve reliefs be enough for a milled 36 thousandths 243 head and a .040 head gasket with my MS4 cam? obviously ill be doing a clearance check when i assemble. But im bring my heads to the machine shop tonight and wondering if i can go that low. thanks
LSA DOES reflect PtV clearance as its a relation of valve overlap.
How much it will help I have no idea.
Do they make that cam on a 112, or is it a special order type of deal.
Reason I ask is if they engineered that monster on a 110, and you change it to a 112 that throws the whole powerband off.
If it was me man, I would flycut the pistons and do it right. Someone makes a tool to cut the pistons in the motor using the valve guide. I just saw some pics last week I think of someone using it in a vette I think.
Good luck with whatever you do.
Don't get me wrong, baby and mid sized cams get the job done well
But from the moment I heard a Trex car and saw what kind of power they were making I knew I had to have this cam.
As for the heads, I believe they are 68cc, they are not milled and I did not flycut the pistons
I don't drive it daily, if your wanting a cam for a daily driver, this is prob not the type of cam your looking for, any big cam can be tuned to drive excellent though. I would suggest something in the 228-230's range for a daily.
But from the moment I heard a Trex car and saw what kind of power they were making I knew I had to have this cam.
As for the heads, I believe they are 68cc, they are not milled and I did not flycut the pistons
I don't drive it daily, if your wanting a cam for a daily driver, this is prob not the type of cam your looking for, any big cam can be tuned to drive excellent though. I would suggest something in the 228-230's range for a daily.
any videos of your car?