Goatman455

I know the cam shrank in 01 to give the car more low-end torque.


I was curious to hear from anyone with personal experience as to how pronounced that is, and if changing the cam would be worth it. I am interested in low-end but I certainly wouldn't want to sacrifice too much high RPM power.


Thanks

redbird555

iTrader: (14)

dont waste your time with it the difference is tiny. If anything the 01-02 car maybe a tad bit faster although theres no hard proof for this. If you are going to change a cam do something worth while even an ls6 cam is better than any ls1 cam and even that is debatable on whether or not its worth it. Imo the smallest cam for these cars should be a 220/220 ideally a 224/224 or 228/228 are the most street friendly.

redbird555

iTrader: (14)

if its any help my 02 car would beat my friends 98 car stock for stock every time but we're talking by a fender by the time we both hit 80

garygnu

EPS cam or comp LSr truck cam 54-455-11,112LSA,107*ICL

bene

iTrader: (16)

It's because of your intake manifold mostly.

mikey67

Didn't GM use a different cam grind as part of the elimination of EGR? Thought I read that somewhere...

Goatman455

Interesting responses so far, anyone have any more info, anyone ever felt both cars? What kind of powerband differences do the cams do.


I do know the 01-02 got the LS6 intake as well, the cam should actually hurt performance slightly because it is milder, but the LS6 intake more than made up for it, and the 01-02 cars are the fastest stock ones generally.

The question is how is below 2.5k, below 2k, below 1.5k etc different on the two?

Thanks

jrob56

iTrader: (39)

From my understanding the cam change was for emissions after the elimination of EGR and the ls6 intake made up for it.

This would be mostly your ls6 intake like was already said and slightly better exhaust manifolds.

01ssreda4

iTrader: (96)

This

Goatman455

So then how different does the CAM make the powerband in this case?

ramairroughneck

iTrader: (35)

Your probly not looking to go this route but consider gears. They make an unbeleavable difference. You'll get so much more low end thrust than you could ever get from a cam. You'll be amazed how your car can spring to life at low rpms.

BAD2000TA

iTrader: (6)

MY first Trans Am was a 2000 and I will tell you it was much stronger than my 2001 - stock for stock. The funny thing is, the 2000 was a non-WS6 and the 2001 is a WS6. For whatever reason, the 2000 was just clearly stronger, and had more torque down low. The 2001 seemed to be better up top, which makes sense considering the intake advantages.

But, as mentioned, if you are seeking a kick in low-end torque, you will need to consider an aftermarket cam over any factory cam. The LS6 is a top-end cam, the pre-01 cam will not yield any noticeble gains.

ramairroughneck

iTrader: (35)

I dont understand how an aftermarket cam can give more low end torque than a factory cam. Cams trade low end torque for upper rpm horsepower. Can you elaborate on a cam that will show such gains? That would be a great street cam although you would be dissappointed when you dynod less.

garygnu

the stock gm cams don't allow the heads to reach their flow potential.after market cams have more intense lobes,better lobe quailities.talk to Pat-G he will spec you great cam.

Goatman455

Right now just to let you know, I do have 4.10 gears, intake, pulleys, pro-5.0 shifter, Borla on my 98 T/A. I basically have basic bolt ons and some freebie ones (like the EGR mod, etc).



BTW, does the "Performance Tuning" on a hypertech power programmer worth using?

redbird555

iTrader: (14)

Ya thats what I was trying to get at was that if there is any difference between the two cars its negligible and not really due to a cam difference. That being said Ive driven BOTH cars countless times even a 2000 also and can say the other years may have felt a tad faster down low but I think it was entirely in my head because as stated a straight up race never lies. Point being is if your doing a cam do it right lol.

libertyforall1776

iTrader: (2)

Sorry I don't have a good answer, but my '01 SS sure feels good.

http://en.wikipedia.org/wiki/Chevrol...neration)#2001

"The Z28 and SS models received the intake manifold from the LS6, the engine used in the fifth generation Corvette Z06 from 2001-2004. This change also resulted in a revised camshaft profile and removal of the EGR system."

Goatman455

Thanks for the responses?

Anyone else driven or felt the difference?


Also, what cam would be good to give me a nice wide torque band in my LS1 w/ 4.10s?

I don't mind sacrificing some top-end for low-end torque (I want a daily driver) but I don't want the thing to be a dog up high.

The way I look at it, 12 years later, cam tech. should be able to give me more low-end and maintain or increase top end. I just don't know which grind/brand to get.


BTW, 98 LS1 T/A 4.10, Full exhaust+borla catback (mid headers btw), EGR mod, Ram Air Mod, Pro-5.0 Shifter, dual friction clutch, k&n, underdrive pulleys w/ alternator overdrive.

odarabla

iTrader: (1)

Just put an after market cam in it and be done with it already.

slt200mph

iTrader: (42)

My after market cam makes 375 ft lbs of torque at 3000 rpms which quite a bit more that the stock cam makes at peak torque ... nuff said ..