I've cracked the porcelan before!!

 

so have u put it in yet or what

 

wow I havent visited this post in a few days, nice math work dudes, easy to see how the bigger single is as good as if not better than smaller duals.

 

just to solve this stupid argument, i actually have the instructions for the kit so i could see the diagram, the kit is 2 1/4" NON MANDREL bent. i hate single exhaust but 2 1/4" non mandrel is too small for most anything but an LG4. there were several places in the kit where it made 90* angles and so fourth. it was not a good flowing kit and i did not purchase it.

oh and duals will outflow as long as they have an X pipe or H pipe and are proper sized.

 

Wouldn't it make sense that a dual exhaust would flow better just because there's only half the amount of exhaust going through each muffler?

Trying to push 4 cylinder's exhaust through one muffler would seem to be easier than pushing all 8 through one muffler. Wouldn't it?

 

yeah you are right, however a lot of people say that up until a little over 300 horsepower the difference between pushing 8 through a large pipe and pushing 4 through a smaller pipe is unnoticable. for people who argue wiht me over the performance, i tell them to get it for the sound. nobody can argue that a nice dual setup doesnt sound awesome.

 

Nobody's arguing that two pipes will flow more than one pipe of the same size. What's being argued is how do flow rates of differing sizes compare. Dual 2.25" vs. Single 3", for instance, and is it worth all the extra trouble.

 

CamaroDriver hit the nail right on the header.

TWO 2.25" pipes into TWO 2.25" mufflers will flow more than TWO 2.25" pipes that merge into ONE 3" pipe then into ONE 3" muffler.

If you're talking straight pipes, then TWO 2.25" will flow pretty much the same a TWO 2.25" pipes into ONE 3". That's a gimme. Heck... I'd almost venture to say that IF the Y-pipe was made right, then the 3" pipe would seem to act as a "balance tube", similar to an "H" or an "X" pipe would.

But let's compare apples to apples.

Is it worth the extra trouble? Depends on how many horsies you're looking to run. If you're gonna keep it on the low side of 300, then ONE 3" would probably be fine. Obviously, if you're staying around that HP range, you intend to drive it regularly. An occasional trip to the strip MAY cost you .05-.1 seconds on your ET on an engine in that HP range.

If you're gonna push 450HP through it, then obviously you don't intend to drive it daily, and 1/4 mile ET is all that matters. (EDIT: Or lap times. Didn't wanna leave the Road Course guys out )In that case I'd look into a 4" or going with the duals.

Anyway... I'm getting bored with this. I'm gonna go see about getting duals put on my car. See ya......

AJ

 

what about 2.5 in pipes into a 4 inch pipe

 

damn.... i got some good questions

 

matching turbo header for dynomax system:

 

AJ, just curious, if I'm planning on pushing 450 hp, why wouldnt I drive it daily? not all of us are satisfied with the stock boat anchor engines and actually want to get some performance out of out cars.

and yes you are right, ET and lap times are all that matter

 

 

Obviously I wasn't talking about you!!!!!! It was a generalization.

Seriously, I wasn't born in the '80s so my priorities, as well as my financial knowledge has changed. I didn't take that into consideration when I wrote that statement. Forgot about you yung pups. :lala:

If I only had the money that I had when I was in my early 20's.

AJ

 

whoa, whoa, whoa....didn't mean it like that, I was just commenting on your post. but yeah speed is all that matters now, going fast is what its all about. if only it didnt cost so much....

 

"MMMMM turbo dog..."