True Dual Guys...

[blacksport]

What size pipe are you running on your duals? 2 1/2in?


I'm getting true duals/w x-pipe dumped before the axle run on my car and was wondering what the rest of you ran.


For mufflers I already ordered Borla XR-1 Bullet Mufflers [img]graemlins/rock.gif[/img]

[Red]

even with a power adder you will feel alot slower down low. That will move your curve waay up. 2" true duals would be 4" total, my 3" (granted i dont have quite as much rwhp) moved my power up quite a bit. If you must do the true duals, about 11/2 would be all you'd need.

My 3" is overkill for a stock motor and i could definately tell the difference, but i am getting gears and a power adder which will add to my volume as well as putting the power where i want it. You will have almost twice as much size and you wont be able to put out the exhaust volume needed. Plus it may sound like crap.

It's your car and you may know exactly what your doing, so i wish you the best of luck and let us know how it goes. I hope i a wrong and it works awesome [img]smile.gif[/img]

[blacksport]

I know a guy that has 2 1/2 with moroso spiral flows on his nearly stock six and sounds mean as hell and he said it opened it up alot too.


Within the next month I'm getting 3.73's my re end rebuilt. Right now it has 3.42's.


My shift points are at 6200 and the rev limiter gone. The cars power is pretty far up in the RPM range as it is so it shouldnt be much worse.


Right now with the ****ty pace setter Y pipe with is clamped together my hole exhaust rattles around everytime I drive.


I think I'm going to go with 2 1/2. 1 1/2? It'd sound like a ricer with that pipe, thats tiny.


I guess we'll find out once its done. I think it should sound pretty sweet.

[Red]

yes 11/2 is small, but if you have 2 the same size it is 3" total. Good luck man, be sure to put up a sound clip when your done. Thats a nice looking camaro [img]smile.gif[/img]

[blacksport]

Thanks, I'll post some clips of before and after once I get it. Its suppose to be 10 days before the mufflers get here though.

[Muttled]

Hate to be the one to introduce math here, but pi*r^2 puts 2 1.5" pipes at the same volume as a 2.12" pipe, or worse than stock. You would need 2.12" pipes in a true dual setup to get about the same volume as a 3" pipe. Dual 2.25" would be more practical as far as ordering, but would net you the same volume as a single pipe of 3.15" diameter. Someone check my math to make sure these quick calculations are correct before anyone tries it.

Hate to sound pedantic, but I wouldn't want this guy spending a lot of money just to end up with a system worse than stock.

For what it's worth, 2.5" duals would be the same as a 3.5" single.

[WickEdSix9838]

Originally posted by Muttled:
Hate to be the one to introduce math here, but pi*r^2 puts 2 1.5" pipes at the same volume as a 2.12" pipe, or worse than stock. You would need 2.12" pipes in a true dual setup to get about the same volume as a 3" pipe. Dual 2.25" would be more practical as far as ordering, but would net you the same volume as a single pipe of 3.15" diameter. Someone check my math to make sure these quick calculations are correct before anyone tries it.

Hate to sound pedantic, but I wouldn't want this guy spending a lot of money just to end up with a system worse than stock.

For what it's worth, 2.5" duals would be the same as a 3.5" single.

^What he said^

[Red]

damn math. I was staying at my level, you know 2+2=4. I stand corrected [img]smile.gif[/img]

[blacksport]

I didnt think it was right but I couldnt remember the math to do it, and I'm taking calculus next year.... lmao