...with stock heads.
Trex on Stock Heads?
Trex on Stock Heads? i was on thunder racings web site and seen the were running the trex on stock heads pushing out 450rhwp! damn
but is that a legit setup? im worried about the valve to piston clearnace......wat type of springs would u guys recommend with that? as well as swappin out the rockers,seats,retainers,push rods? is it nessary to swap the seals?
is there anything else that yall would reccomend?
thanks
but is that a legit setup? im worried about the valve to piston clearnace......wat type of springs would u guys recommend with that? as well as swappin out the rockers,seats,retainers,push rods? is it nessary to swap the seals?
is there anything else that yall would reccomend?
thanks
The Comp 921s are the recommended springs. Yes, the TRex fits in a STOCK LS1 engine. It is legit. Most of the really fast cam-only cars run the TRex cam. There was a lot of R&D that went into the development of it. The objective was to produce the most powerful cam that would fit in a LS1. Many grinds were tested each with several ICLs and after months of dyno testing... the TRex was born.
This cam has hit 450RWHP several times, but not every combination is that stout. It will take a lot of fine tuning and nailing of the small details to get to the 450rwhp range. Something a little bit south of that is probably a better goal to have in mind to avoid dissapointment.
Ben T.
This cam has hit 450RWHP several times, but not every combination is that stout. It will take a lot of fine tuning and nailing of the small details to get to the 450rwhp range. Something a little bit south of that is probably a better goal to have in mind to avoid dissapointment.
Ben T.
Stick with the stock rocker arms, don't get the Harlands, but the other lighter roller rockers seem to be pretty decent, just not worth the money to me.
I run a TRex, it's a badass cam. Many people bad mouth this cam with no grounds either. Statements such as it not being drivable, or it doesn't make power with heads are just not true. Daily drove my TRex, sure, there are some sacrifices that were made. (4400 stall converter) But in a 6-speed it would be my second mod....after a rear end!
So TRex it up, and welcome to the world of a choppy idle, even at 1500-2000 you can hear it camin out!
I run a TRex, it's a badass cam. Many people bad mouth this cam with no grounds either. Statements such as it not being drivable, or it doesn't make power with heads are just not true. Daily drove my TRex, sure, there are some sacrifices that were made. (4400 stall converter) But in a 6-speed it would be my second mod....after a rear end!
So TRex it up, and welcome to the world of a choppy idle, even at 1500-2000 you can hear it camin out!
The Rex can be tight on PTV but it should clear. I checked my PTV when I put mine in and ended up milling the heads and fly cutting. Couldn't be happier and I don't even have a tune yet... I went the PRC dual springs
Originally Posted by chuckyt1
The Rex can be tight on PTV but it should clear. I checked my PTV when I put mine in and ended up milling the heads and fly cutting. Couldn't be happier and I don't even have a tune yet... I went the PRC dual springs
Also, compression is your friend!
Ben T.
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I just finished installing a T-Rex cam package from TR. It will be with the stock heads, 6 speed, and 4.10s in the rear. I think it will be relatively streetable, as long as I can figure out what I'm gonna do for a tune.
450rwhp would be niiiice, but I doubt it.
450rwhp would be niiiice, but I doubt it.
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i think i am deff gonna look forward to this cam. u just can not argue with 450rwhp on stock heads. it will be goin in an m6 with 4.10s. so you guys are sayin to cut the pistons or wat? i would hate to have any problems on down the road.
btw how does this cam respond to n20 i heard it does not like it to much any one wanna chime in on it?
btw how does this cam respond to n20 i heard it does not like it to much any one wanna chime in on it?
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doubtful that you hit 450 to the wheels, not to many T-rex owners have done this. I just replaced my T-rex with and F14 and did a heads swap, T-rex left eyebrows in all 8 pistons.
Originally Posted by LS1IMPULSE
doubtful that you hit 450 to the wheels, not to many T-rex owners have done this. I just replaced my T-rex with and F14 and did a heads swap, T-rex left eyebrows in all 8 pistons.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Originally Posted by Patrick G
It takes lots of the right bolt-ons, but I recently tuned a guys cam-only SS that hit 455 rwhp with the T-Rex. Keep in mind, he was running QTP headers with high velocity merge collectors, cutout, FAST 90 with Nick Williams 90mm TB, no MAF and excellent tuning with a WB O2 sensor. His car made more power than many heads/cam cars I've seen. The T-Rex is for real.
haha 
Originally Posted by Patrick G
It takes lots of the right bolt-ons, but I recently tuned a guys cam-only SS that hit 455 rwhp with the T-Rex. Keep in mind, he was running QTP headers with high velocity merge collectors, cutout, FAST 90 with Nick Williams 90mm TB, no MAF and excellent tuning with a WB O2 sensor. His car made more power than many heads/cam cars I've seen. The T-Rex is for real.
The cam is a monster, make sure you have the supporting mods such as the proper converter or Gears to keep the cam where it likes to be. One of the Best sounding cams i've ever heard.
Cam is definatly a monster, there is a reason why its hold down how many spots in the cam only list, BUT...for the thread started to reach 450RWHP with this cam he would have to replace pretty much every bolt on he has with the best of the best stuff and find a great tuner to put in hours and hours of work.
yeah this cam is a monster. a buddy of mine has one and his daughter gets scared when he starts it. i bet with all the supporting mods and this cam it wouldnt be to hard to hit 450rwhp but of course it will take a pretty penny to do so. oh and also what rear end did the car have when they dynoed it? maybe that could play a factor too
Originally Posted by transamfreak01
yeah this cam is a monster. a buddy of mine has one and his daughter gets scared when he starts it. i bet with all the supporting mods and this cam it wouldnt be to hard to hit 450rwhp but of course it will take a pretty penny to do so. oh and also what rear end did the car have when they dynoed it? maybe that could play a factor too
With a cam like this in a 346 it's going to be about maximizing the flow of air in and out of the motor. Just a small restriction in the intake tract can have have a huge effect on port velocity, same with a less than optimal header causing some reversion.
Take it to a competent tuner and it'll run besides if it run's the times who care what the dyno says.
Originally Posted by LightEmUpLs1
the only thing that is holding me back is comparing this cam to say a ms4 or g5x4
And oh by the way, I am partial to the Rex. Everytime I start my car it sounds like it "wants to eat"...
Originally Posted by LightEmUpLs1
the only thing that is holding me back is comparing this cam to say a ms4 or g5x4