TREX/Head question
11-27-2006, 04:48 PM
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TREX/Head question i'm thinking about running the T.R. TREX cam in my SS...i'll have the necessary supporting mods when the install time comes, but i plan on leaving the bottom end and heads stock for now...
i was thinking about taking my stock heads to a local racing engine shop and having some port work done while i was putting the cam in. would this be a worthwhile venture, or should i just save up for some aftermarket heads? obviously the more airflow the better, but i want to waste as little time and money as possible.
if it's too cold to ride my R6, i'll be driving this car. i know a TREX isn't exactly the best DD cam choice, but i don't really givashit. i'm trying to get a 11 second car with a stock bottom end...at least until it breaks. i just want to know if i can get away with this using my stock heads and maybe some porting....or if i have to splurge on some LS6's or AFR's or whatever i decide to go with....?
thoughts?
i was thinking about taking my stock heads to a local racing engine shop and having some port work done while i was putting the cam in. would this be a worthwhile venture, or should i just save up for some aftermarket heads? obviously the more airflow the better, but i want to waste as little time and money as possible.
if it's too cold to ride my R6, i'll be driving this car. i know a TREX isn't exactly the best DD cam choice, but i don't really givashit. i'm trying to get a 11 second car with a stock bottom end...at least until it breaks. i just want to know if i can get away with this using my stock heads and maybe some porting....or if i have to splurge on some LS6's or AFR's or whatever i decide to go with....?
thoughts?
11-28-2006, 03:55 PM
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i've never been a fan of nitrous, if i'm gonna use a power adder, it'll be boost. for some reason N20 seems kinda like cheating to me...no offense to those who use it. it DOES make you go fast, but there were a lot of street races i lost by a couple fenders due to the squeeze back in the day....i'd rather have the same horsepower all the time. besides, nitrous is just a quick fix, it'll end up costing way more than a blower in the long run just due to bottle refills. plus i wanna keep my stock bottom end IN this motor, not ON the track...i know a small shot wouldn't be that bad, but i'm just morally against nitrous...sorry 
i could go on and on why i don't want nitrous... 
...but it doesn't matter. N20 has it's place, but that place is not in my particular car.
as for the cam, i flat out just WANT a T-Rex. i think it's about the best sounding cam out there. i know that's a bad reason for cam selection, but i don't care. my car, my money
...if it ends up being too much, i'll put the stocker back in and build a 408 around the T-Rex 
...or something...
i just wondered if anyone knew from experience how well it went with stock heads or stock heads with a mild port job....
i could go on and on why i don't want nitrous... ...but it doesn't matter. N20 has it's place, but that place is not in my particular car.as for the cam, i flat out just WANT a T-Rex. i think it's about the best sounding cam out there. i know that's a bad reason for cam selection, but i don't care. my car, my money
...if it ends up being too much, i'll put the stocker back in and build a 408 around the T-Rex ...or something...i just wondered if anyone knew from experience how well it went with stock heads or stock heads with a mild port job....
11-28-2006, 03:59 PM
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You are only supposed to use stock heads with the TRex. Also, with an M6, 11's are going to be a challange even with a TRex and the supporting mods...they won't come easy just to let you know.
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11-28-2006, 08:41 PM
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Originally Posted by Cyborg
You are only supposed to use stock heads with the TRex. Also, with an M6, 11's are going to be a challange even with a TRex and the supporting mods...they won't come easy just to let you know.
What do you mean only stock heads?
11-28-2006, 10:28 PM
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Originally Posted by Cyborg
You are only supposed to use stock heads with the TRex. Also, with an M6, 11's are going to be a challange even with a TRex and the supporting mods...they won't come easy just to let you know.
11-28-2006, 11:25 PM
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Originally Posted by mwill15
I've seen 11's out of MUCH less than a Trex in a M6. You can use a much more streetable cam and achieve that N/A.
11-29-2006, 02:07 AM
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if the porting is $400 and lower for both the intake and exhaust it`s not a bad idea for a 15-25 hp atleast (not counting the lower rpms wich they call under the curve) increase and better torque and getting an advantage of the +600 lift. of course cnc`d 243 heads what is called budget heads or even aftermarket heads are better it depends how much you have now and when you`ll buy heads and if you`re willing to wait!
remember don`t mill the heads if not flycutting pistons.
remember don`t mill the heads if not flycutting pistons.
11-29-2006, 07:09 AM
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...don't even clean them up either. As for the porting, I wouldn't agree to it unless you see their flow bench and they've done several sets of LS1 heads previously.
Ben T.
Ben T.
11-29-2006, 08:55 AM
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Originally Posted by mwill15
I've seen 11's out of MUCH less than a Trex in a M6. You can use a much more streetable cam and achieve that N/A.
11-29-2006, 09:44 AM
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Originally Posted by Cyborg
I completely agree. I've seen consistent 11.6's out of a 224/224 M6 & ET Streets & excellent driving. I never recommeded the TRex, I was just stating that the cam 2000_SS wants to use, a TRex, is supposed to use stock heads, and IMO 11's are not easy for most cam-only M6's no matter what cam you use.
Ben T.
11-29-2006, 10:50 AM
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Originally Posted by Studytime
That's only because most M6 cars don't have the luxury of running drag radials/slicks and leaving the line at 5500 RPM with a tough rear end. A good launch is paramount to getting in the 11s.
Ben T.
Ben T.
