2 1/2 or 3" exhaust??

[98GREENGLOW]

Yea dont make my mistake and go with the 2.5. I had no idea my wife was gonna actually let me go forced induction, now Im probaly loosing a lot of power by having to small of an exhaust. Im probaly gonna have to shell out another 100 bucks to have my mechanic turn it into a 3 inch system. Dont waste your money like me... Always build it like it will oneday be the baddest v6 on the planet. You never no what youll be doing to your car in the future.

[Tyler F]

3" here and no problems so to speak, I don't have an intak yet so I lost a bit of lowend but nothing to worry about.

I got the V8 Dynomax Ultra flo kit.....it sounds killer

[white96six]

low end is what gets you down the track faster. torque, not horsepower. I am glad I didnt go witht the 3". [img]graemlins/burnout.gif[/img]

[Dominic]

For what its worth, a single 3" is the way to go if you're going single at all.

And, Dual 2.25" flows BETTER than a single 3"

Area of 2.25" pipe = 3.98in^2
Area of 3" pipe = 7.07in^2

Dual 2.25" pipe = Approx 8in^2 = 15% more flow capability.

[img]smile.gif[/img]

[ September 24, 2003: Message edited by: Dominic ]</p>

[Eddie B]

<blockquote>quote:</font><hr>Originally posted by 93v6firebird:

Did you ever stop to think that maybe these 2 were related in some strange twisted way...? Maybe the extra 15lbs of weight had a lot less to do w/ it than the loss of the lbs of torque?<hr></blockquote>

Yeah he did. Didn't you see that part that said "leading to the next con"?
Stop trying to cause trouble.

[93v6firebird]

<blockquote>quote:</font><hr>Originally posted by Eddie B:


Yeah he did. Didn't you see that part that said "leading to the next con"?
Stop trying to cause trouble.<hr></blockquote>

what the **** is your problem?
get the **** off my nuts you peice of ****.

First of all... a bigger exhaust set up will not cause any slower times due to weight. That is a fact. He indicated that it would be noticeably heavier - that is false. Like it or not.
Now you need to shut the **** up.
You do nothing but reply to me and try to tell me what to do. Youve been around for not along at all.. how long do you want to stay here?

[98Silver6]

I'll go for the 3" since I'm going for the supercharger.

now which brand to go with
Flowmaster, Magnaflow,......

[darkthoughts5000]

do like me and have the best of both worlds. well, i got pacesetter headers, but nevermind those for now. starting after the headers, i have a 2.5" magnaflow cat, edelbrock cat-back piping (consists of an "i" pipe that starts at 2.5" and tapers to 3" the rest of the way to the muffler), flowmaster muffler (3"in/dual 2.5"out), 2.5" dual pipes and, 18" long; 3" dia chrome pipes. theory: confuse the hell out of your exhaust gasses to just get the fu*k out of your car :D . actually, i had the full edelbrock cat-back, but the muffler pretty much deteriorated, and then my origional catco cat went to sh*t. so needless to say, my exhaust work has been very extensive and overall, including install, has cost me over $1500 [img]graemlins/omg.gif[/img] . oh well, worth it from the sound and perfomance.

[98Camaro3.8]

<blockquote>quote:</font><hr>Originally posted by white96six:
low end is what gets you down the track faster. torque, not horsepower. I am glad I didnt go witht the 3". [img]graemlins/burnout.gif[/img] <hr></blockquote>

Do you shift at 2500 when you're racing? I tend to run mine up a little further, which is where a larger exhaust gives you even more power. [img]tongue.gif[/img]

[white96six]

it seems like everyone on here is becoming like the import racers that I dont like. hell lets put a 5" exhaust on these little 3.8's. loosing all the backpressure in a system is not always a good thing. for V8 3" is fine but on these little engines they are just big fart pipes.and horsepower doesnt move the car torque does so why would you want to loose any torque when we dont have alot of it to begin with.

[Bluebird]

<blockquote>quote:</font><hr>Originally posted by white96six:
But on these little engines they are just big fart pipes.<hr></blockquote>

[img]graemlins/rofl.gif[/img] [img]graemlins/rofl.gif[/img]

Sorry, I found that funny! [img]tongue.gif[/img]

-Derek- [img]graemlins/dunce.gif[/img]

[98Camaro3.8]

<blockquote>quote:</font><hr>Originally posted by white96six:
and horsepower doesnt move the car torque does so why would you want to loose any torque when we dont have alot of it to begin with.<hr></blockquote>

3" exhaust results in a gain in torque above 3000. You may lose some below 2000, but you gain more above 3000. When you're racing, you want more power when you're revving higher.

[ September 24, 2003: Message edited by: 98Camaro3.8 ]</p>

[darkthoughts5000]

if i had to choose between 2.5" and 3", id say 2.5" with pacesetter, rksport, or cia headers. if 3", atleast have or get some tubular manifold type headers (if your stick is collector type that is). my low end is great if you ask me. and after my headers got put on, the upper pulled very noticeably. i had the tubular headers before and so they told me it wouldnt be "much" of a gain, but i felt it. either way, there is NO WAY i would ever just go with a cat-back and then leave it. get some headers for sure. and anyone who decided to put a 3.5" or 4" exhaust on their 3.4l-3.8l should be bi*ch slapped. hell, GM made a turbocharged cavalier runnin 1200 hp, and it had a 3" exhaust. we struggle gettin to 400 hp through turbos and superchargers alone. so, be realistic with what your gonna be doin. if you just want sound and NOTHING more... 2.5". if your even have the slightest thought about getting your car blown or juced...3".

[snatch]

This is getting to be a crazy thread. I lost no low end, it definately breaths better. I cant beleive that you think that putting a full three inch exhaust on our car is being a ricer, and your commenting on something that you have never had first hand experience with(RICER IMO). Their have been proven results of gains and none for losses, and all that this individual wanted was some advice and hes probably more confused now than ever. You can do a 2.5 or a 2.75 or a 3" exhaust, anything is better than the stock pipes. Im happy with the my 3 incher!!! go for it you wont be disappointed

I just wanted to comment on something that was stated earlier "torque gets you down the track" well thats not true, torque gets you off the line faster HP keeps you hauling A$$. If it was only torque than F-350 would be wooping up on us at the track. TQ gets you moving and HP keeps you going is the way I have always understood it.

Also darkthoughts brought up a good point, tubular manifolds. That is probably a bottle neck for the pre 2000 or was it 99 year camaros that I overlooked.

[ September 24, 2003: Message edited by: snatch ]</p>

[white96six]

ok, I just was saying that I think 3" is too big for our engines. especially if you loose low end torque.I would rather have the torque below 3000rpm because at 3000 rpm you are already moving. and a F-150 engine in our car would probably be faster than our 3.8 is. although I believe you would go to hell for putting a ford engine in a GM car.i am not trying to make anyone mad I was just giving my opinion. [img]graemlins/burnout.gif[/img]