T-rex Cam
Thread Starter
Staging Lane
Joined: Dec 2005
Posts: 69
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T-rex Cam I was thinking of buying a cam from Thunder Racing, the cam that i was going to get is the T-Rex. If u don't know the specs here they are,242/248-.608/.612-110LSA 
. My question is what else do yall think I need to buy my car only has 40k so I think that is should be all right in that dept. When it gets done I will put the vid on here THANKS
. My question is what else do yall think I need to buy my car only has 40k so I think that is should be all right in that dept. When it gets done I will put the vid on here THANKS Whats you current mods? Buy Thunders install kit with 921's and gaskets. Thats a good start if you have ALL the supporting mods like 4.10's, clutch, or stall, intake, headers, exhaust, and a good tuner and everything else I left out.
I am doing the same thing as you but have an A4. I am getting the TRex cam with the dual spring Thunder cam install kit, a double roller timing chain and an LS6 oil pump. I was going to do lifters as well, but I think the stockers should be fine until I do a head swap.
trex' powerband is very peaky and very late, so without MAD gearing (i'm talking 4.33+) you're going to be off the powerband for a lot of your racing. A4's are even worse, as the in-between-gears spacing is so much wider than M6. get something that makes a lot of power sooner, as lazy gearing and inability to rev past 6500rpm safely slaughters your 'area under the curve.'
if you want more details i can provide you with some calculations and graphs, but trust me, trex is NOT recommended for stockish cars.
if you want more details i can provide you with some calculations and graphs, but trust me, trex is NOT recommended for stockish cars.
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Thread Starter
Staging Lane
Joined: Dec 2005
Posts: 69
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Originally Posted by RedHardSupra
trex' powerband is very peaky and very late, so without MAD gearing (i'm talking 4.33+) you're going to be off the powerband for a lot of your racing. A4's are even worse, as the in-between-gears spacing is so much wider than M6. get something that makes a lot of power sooner, as lazy gearing and inability to rev past 6500rpm safely slaughters your 'area under the curve.'
if you want more details i can provide you with some calculations and graphs, but trust me, trex is NOT recommended for stockish cars.
if you want more details i can provide you with some calculations and graphs, but trust me, trex is NOT recommended for stockish cars.
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Thunder Racing Custom "CheaTR" Camshaft - 214/230 .601/.578 117 LSA. Off Idle-6800 RPM Power Band. Broad power range. Works well with stock exhaust manifolds and catalytic converters. Stock like idle. Minor tuning required on automatic transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended. Double valve springs and titanium retainers required for this cam.
Everyone will think your stock.
Everyone will think your stock.
I dont think it would be a good choice for you......but this is America and you have the right to choose.
Thunder Racing Custom Camshaft - 224/224 .563/.563 112 LSA 1700-6600 RPM Power Band. Excellent mid-range & high RPM power. Requires computer tuning on automatic transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended.
Thunder Racing Custom Camshaft - 224/224 .563/.563 112 LSA 1700-6600 RPM Power Band. Excellent mid-range & high RPM power. Requires computer tuning on automatic transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended.
Check out the MS3. You can get the cam and cam install package from TSP for around 600-700 bucks I think. It sounds wicked. However, I'm still going for the TREx. I have talked to many people who run this cam with a 4000 stall and 3.73 gears with no problem. With a good tune and upping the rev limiter it drives fine. If you want something with a cool sound look for anything with a 112 LSA (that's what I've been told at least). Also, check out the TRAK cam from Thunder Racing, its a little more tame than the TREx but will still require a higher stall or gearing. Good luck
Thread Starter
Staging Lane
Joined: Dec 2005
Posts: 69
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So T-REX is the way to go, I have talked to a guy at a local LS1 shop he said as well as I take care of my car and motor that it would be no problem with the T-REX. Since I have a M6 with 4.10s. Thanks for the help!!!!!!!
TECH Fanatic
Joined: Nov 2003
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From: The point of no return...
Do you have headers? I didn't see them listed. They will help out a god bit.
A lot of people don't like the t-rex but I think it's a good cam. If you want a high reving setup the t-rex will be good for you , especially since you already have 4.10's.
A lot of people don't like the t-rex but I think it's a good cam. If you want a high reving setup the t-rex will be good for you , especially since you already have 4.10's.
I've heard the t-rex is good for a lightweight car(read: tin can) with a big rear gear and a driver willing to rev the car to at least 6800.
I like the magic stick...I've seen a certain camaro around here with one and bolt-ons, and it staight moves out...Still on the 10 bolt too. I'm probably going with one now later on this summer. 600-700 for the full kit(cam, pushrods, springs, retainers). Ported ls6 pump,a good chain, and a guy who knows how to tune and you're ready to go.
I like the magic stick...I've seen a certain camaro around here with one and bolt-ons, and it staight moves out...Still on the 10 bolt too. I'm probably going with one now later on this summer. 600-700 for the full kit(cam, pushrods, springs, retainers). Ported ls6 pump,a good chain, and a guy who knows how to tune and you're ready to go.
T-Rex has plenty of area under the curve... you just have to be willing to rev the thing to at LEAST 6900rpms. And, in my opinion, rear gears are not a necessity. Shift at 7000rpms, and you drop back down to where you start making good power. Rear gears have nothing to do with this, all they would allow you to do is to get out of the RPM range where the cam is slacking (Before 4800rpms or so, if memory serves) quicker, and get into the powerband. But, like I said before, if you rev the car high enough, you circumvent this problem. 
