ty_ty13

iTrader: (42)

with the T-rex cam is there any thing you can do about the heads to make it perform better.... surely some porting or some AFR heads... SURELY

im looking to make atleast 450rwhp with this cam in an A4... i know ill be close but close is not good enough... I'll prolly be around 425ish wouldn't you think?

hellbents10

iTrader: (10)

With the right tune and that 90/90 combo you could hit 400+ on the cam alone.

ty_ty13

iTrader: (42)

right.. but i am looking for over 450rwhp with the cam and whatever other modifications i have to do as long as the motor stays N/A... and as you can see i already have the 90/90 combo in my mod sig... its sitting beside me as i speak.



Tyler

White 02 WS6

Ty, you cant go by dynos...Just stop worrying about how much power its going to make on the dyno and take it to the track and see what it will do...The T-rex is a HUGE cam for any 346 car...I hope you arent going to be daily driving it with an a4 car...

Wnts2Go10O

iTrader: (12)

would it be decent ina 6spd car

White 02 WS6

You can get away with a huge cam on a 6 speed, still yet this is a HUGE cam...I personally have an X1 cam in my car from MTI (230 227 112lsa) and I wouldnt go any bigger. It cams its *** off but sounds nice... I dont drive this car daily and like i said I wouldnt go any bigger. I still have minimal surge under certain cituations...If want a good daily driver with good power I would stay in the 220's-230 max intake side range. My buddies full weight Trans am (3750 #'s with him in it) with a MTI c2 cam (224-224 114) along with some decent ported 241 casting heads went 10.7's on motor...Just shows you that a huge cam isnt the answer all the time...Its about your setup/combo that makes the car, not the best of everything that is out...

ty_ty13

iTrader: (42)

yep gonna be a DD... I've got 4.10 gears with a 4400 yank! I'll be fine...hahaha

so no one has messed with the heads on a T-rex car?
surely someone has.
some one help out a bit please



Tyler

under_construction

iTrader: (1)

More compression (11+) to beef up the low end, and probably focus on good flow in the .550-.650 range - at least that's what Absolute speed used to do (before that deal folded up) for engines using big cams like the Trex/G5X2/3.

I've hit 426rwhp unlocked on my X3 cammed C5 w/4.10s, so 440+ locked up should be doable. That was with light wheels, small and tight converter (vig 2400) and old AS 5.3 heads, LS6 intake and shaner TB. The big stall might rob a little more power.

Boostaholic

iTrader: (4)

Don't h8 forced induction

ty_ty13

iTrader: (42)

haha... i dont hate FI just dont want the extra heat and the extra wear on a stock based block... plus it cost big $ to build and tune



Tyler

pontiac

iTrader: (4)

I run a x1 cam dd and wish I had had the choice of the HUGE cams out now they did not have them when i did my cam the x1 was one of the larges then

PREDATOR-Z

That is a good cam IMO, just need a set of 2E heads and you can see 10's all day.

White 02 WS6

X1 cam is big enough as it is...I wouldn't go any bigger even for my self...I enjoy my X1

Damian

iTrader: (89)

You're not going to get 450 rwhp with stock heads. Most people see 380-420 on an LS1 head and that cam. With the 90/90 setup, good exhaust and a full tune you'll be in the 400-420 range. Expecting 450 will only be a letdown.

cyphur

iTrader: (10)

good luck on 450.....that cam was meant for stock heads and big power...you're looking at the wrong cam for huge power N/A if you want ported heads. fm13, fm14, tsp 233, mti x1, all good cams to make great power with ported heads. HUUUGE cams are HUUUUGE and that means very slim p2v clearance....not good for ported heads. keep that in mind.

DanZ28

iTrader: (5)

Possibly, you could reach yuor goal with good ported heads, right CR and quench, all the accomating mods including your 90/90 setup. You don't see to many A4's running 450 whp around. I did 430 whp without the 90/90 setup on some old AS 5.7 heads.

If I were from Texas though, I would probably have dyno'd 460 whp and ran low 10's with no problem, even with a 4000 pound car, lol! Just being sarcastic!

lilone

I did 432/382 unlocked with my A4 TREX and TEA 1.5 5.3s. I had the stock water pump, LS6 intake, and full belt. That was also through 3.73s and a TP4400. Just to let you know how accurate the dyno was I trapped 96.31 MPH in the 1/8th with the same at roughly 3500lbs and street tires.

That pass was my second and toasted my posi . The first pass I trapped 95.61

chrdij

iTrader: (1)

It is possible to DD the T-rex, but its all in the tune and what you can handle. I had my Trex on my stock block, it would surge like a **** on start-up then would be fine after a little warm-up. The bad thing about this cam..no one wants to race you at red light sounding like a promod...The Good thing about the cam..pulls really hard up top..add a little spray...and you never be late for again! lol

ty_ty13

iTrader: (42)

with your 125 shot what kinda rwhp do you have... and what is it N/A?
the T-rex with a 125 sounds like a good idea.. i just figured that with its LSA the NO2 wouldnt help it much.



Tyler

lilone

I did 582.3/486.2 on a TNT 150 with my TREX. It is a good cam on the jug. I have seen that the LG X4 is good on the jug/motor too though and it is a bit smaller...