T-Rex Cam Question.
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Staging Lane
Joined: Nov 2004
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T-Rex Cam Question. "Thunder Racing Custom Camshaft - T-ReX v.2 - 242/248 - .608/.612 - 110 lsa 3500-6700 RPM Power Band. Violent mid-range & high RPM power. Requires computer tuning, 4000+ converter on autos, 4.10's or greater on manual trans cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended. Due to the extreme nature of this camshaft, piston to valve clearance must be verified when using modified cylinder heads."
Would 3.73s work?
Would 3.73s work?
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TECH Fanatic
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Originally Posted by Hurley_02
ah bad im assuming? I just want a BIG cam that is Daily Driver friendly then haha 
Big cams will not be daily friendly no matter how much you tune. I wouldn't daily a T-Rex b/c to make it more friendly you would not be using it to it's full potential (i.e. not using it in it's powerband).
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Staging Lane
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ohhhhhh see I learn something new everyday so how far do they go in the powerband?
P.S. Would it actually hurt the car performance wise if you didn't keep it in WOT with the T-Rex cam in it since it likes to be up there in the RPMs?
so how far do they go in the powerband?P.S. Would it actually hurt the car performance wise if you didn't keep it in WOT with the T-Rex cam in it since it likes to be up there in the RPMs?
Originally Posted by Hurley_02
ohhhhhh see I learn something new everyday so how far do they go in the powerband?
P.S. Would it actually hurt the car performance wise if you didn't keep it in WOT with the T-Rex cam in it since it likes to be up there in the RPMs?
so how far do they go in the powerband?P.S. Would it actually hurt the car performance wise if you didn't keep it in WOT with the T-Rex cam in it since it likes to be up there in the RPMs?
Thread Starter
Staging Lane
Joined: Nov 2004
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Originally Posted by jrp
it wont hurt anything but it'd just be kind of a waste because you wouldnt be taking advantage of the cams powerband. check my cam guide for basics.
i have this cam in a daily deiven car but i never have to drive it far. driveability is fine but the gas mileage is horrible personally i dont mind but if you do alot of driving and care about gas mileage i would go with something else. and i am a 6-speed and i wouldnt want to drive it without 4.10s it would be a pain in the ***. if these are things you can deal with this cam is amazing power wise.
On The Tree
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From: Park Ridge, IL (Borders Chicago)
I've seen this cam tuned into something very daily driveable. Just find someone who really knows how to tune to VE table and spark advance tables. 3.73's are fine for a automatic. Don't expect the 4l60e to last long though.
Go for it! I have a cam from MTI (close to T-rex numbers)and we pulled 441rwhp and 403rwtq with my A4. Now we sprayed it with 150 shot and got 650rwhp and 660rwtq. My Tranny is built by Century and is holding up pretty good. Granted I don`t spray all the time. Just against the big boys This is with stock bottom-end. We did fly cut the pistons.
This is with stock bottom-end. We did fly cut the pistons. TECH Fanatic
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Originally Posted by Hurley_02
4.10s are mainly track gears are they not?
When I think of track gears I think of 4:30 and 4:56 gears. But this is just an opinion, anyone disagree?
TECH Junkie
Joined: May 2003
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From: its fucking cold
If the car is an M6 i would still consider a 4.88 a street gear, but for A4's 3.73 is about as far as i would go for a daily driven street car. M6's are a whole 'nother ball game though, that .5:1 6th gear rocks.
TECH Senior Member
Joined: Apr 2004
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From: Texas
Originally Posted by 5POINT7
BIG CAM + Daily = wrong move.
Big cams will not be daily friendly no matter how much you tune. I wouldn't daily a T-Rex b/c to make it more friendly you would not be using it to it's full potential (i.e. not using it in it's powerband).
Big cams will not be daily friendly no matter how much you tune. I wouldn't daily a T-Rex b/c to make it more friendly you would not be using it to it's full potential (i.e. not using it in it's powerband).
Whatever. I street mine every day. The tune makes all the difference, but what do I know, I just drive it every day. My cam is even bigger then the trex specs. 244/249 on a 109.4 LSA
I use 3.89s in my stalled auto with M/T DRs. You can street it with less but to get the most out of it you need higher gears and a bigger stall.
Last edited by 2MuchRiceMakesMeSick; Nov 28, 2004 at 07:32 PM.