got a quick question is dual exhaust good for the 3.0 i heard it isnt unless your pushin alotta horsepower cuz the engine is releasing more air then it is sucking in. is this true? please explain if u have the answer!

 

I dont know technically but I can't imagine how thats possible...how would it exhale more than it inhales its just not possible.

 

i dunno which is why im askin about it also doesnt that give back pressure or sumthin?

 

Releasing back pressure is a good thing but if you realease too much, you'll lose some ponies.

 

Your right. Not possible. But having dual exhaust gives more air space in the exhaust for the gases to be. This causes it to be less dense and creates backpressure. I personally think that you can't loss hp from backpressure, but many would argue differently.

 

Need to alter that a lil:

The less airspace for the exhaust gases, the MORE back pressure you have. You want some backpressure, as it's good for the eingine to feel some. BUT, too much will choke the engine - usually the result of a stock exhaust. HOWEVER, little back pressure (too much flow, pipes are too large, etc) and you have the same loss of power. You must find a happy medium.

 

Wrong, Wrong, and Wrong. The more open the exhaust is, the less back pressure you will have. Normally less back pressure results in top end gain, but a loss in torque.

 

dont go dual

http://www.nissanperformancemag.com/...fthenerds2.php

 

ok heres the deal, i had duals on my 2.3 for about 6 months and definately lost alot of power. I raced cars that I had beat without the duals and it was like dead even with them (my friends accord lx with e/i/h) Now that i switched back, I pull on him pretty noticably.

But my CL is a 2.3. I can't see why you would lose power with the 3.0 considering the AV6 has the exact motor as you and has duals There is 1 3.0 i think that has duals. (forget exact name I think it's 3.0clstyle?? ask him if he lost power. Ask teamblurrycl too even though he's a 2.2 because he actually found a way to do it without cutting the spare tire well out. (Unlike me) i've gotta get that thing fixed soon, i have a fat hole in my trunk

 

Adam has the same mods as me cept he's dual. I'll race him sometime and find out who's faster.

 

But the 98+ Accord V6 have dual...i'm thinking of going dual exhuast but not go anything bigger than 2.5 inch piping.

 

must have missed my post

 

im still a little bit confused can someone with a 3.0 please help me????

 

Duals add weight. Weight Bad (even just a little). There will be little gain if any by going duals after the cat. If it were a true dual setup where each exhaust manifold (header) has its own piping all the way back, that would be a different story. However, if you are Non-aspirated, even that would be overkill. You may increase horsepower at top-end, but you would loose torque on the bottom end. We got heavy cars and need all the torque we can get. IMHO, not worth it.

 

The question was asked earlier about more "air" coming out than going in...

You have air going in and gas burning... the result is a high pressure gas, that expands as it exits the engine... the volume of the exhaust is greater that the volume of your intake air.

So, you really do have more volume coming *out* than you do going *in* to your engine. (Example: exhaust valves are *always* larger than intake valves, for this very reason.)

If you could burn a tiny drop of gas inside of a balloon, the balloon would expand as the gas burned. (Don't try this at home!)

Thomas

 

Ever wonder why the AV6 is slower than the 3.0CL? There ya go...

 

98+ av6 duals...they are a joke. it is one pipe divided at the back...as are most duals from the factory....a true dual is from each bank of cylinders to the back of your car with a x-over pipe to equal out the shit

 

what we were thinking was taking the entire piping from the cl type-s (so you guyz know we are planning on doing alot of motor work) but we are still secong guessing our plans because my knowledge on these cars is still small (i've only had the car for 6 months)

 

i doubt u 3.0s will notcie the low end loss. 2.5" piping on my 2.2 had low end loss and was very noticeable, but high end is nice. the cai didnt help either. my shit was slower off the line than stock, but after the dc header it was back to the same or better and i have way more mid-high vs. stock thanks to the cat back and cai, and pullies

personally i think our cars rear is way to small for duals and it looks very stupid. and the added weight is not a good thing for 2.2 2.3 guys

 

it will shift the torque curve and why would you wanna do that? Just slap some silly fart can on there and be set.

 

i dunno i guess i gotta look more into the whole dual thing

 

What about the 3.2CL/TL? what size piping does the 3.0 comes with stock?

 

Like 2.2 with crush bends... our stock exhaust sucks.

 

I have a Y pipe for duals, I got it cause I like the look and it sounds great, and I know me and Joe have a race comin soon, and I have a 3.0 so we'll see, and Joe, Ill be in g-ville this weekend for homecomin and the game on sat, soooo we might have to met up and see whats up so we can give this guy a good answer. but I love the sound and the look of the duals.

ohh, one thing though about if we race, I have alot more weight in my car with my trunk and other stuff, but still we'll se what happens

 

I don't think our car would look good with duals... but...



I never seen our car with duals.

 

well, I had pics up at one time, Ill see about loading them back up

 

you'd be better w/ single, a good amount of the accord v6 guys go single, esp. since it's not a true dual exhaust.

 

guys the accord v6 is not a dual exhaust system. They just make it to look like one.

 

Eh, 2+2=3... think about.

 

WTF??

 

i personally think it couldnt hurt to have duals. the whole theory of more air coming out than its taking is kind of true and complicated. see, you may suck in fresh air, but then there is fuel and ignition introduced. making the air coming out more dinse, and hot, and have alot more crap in it. so you are accually putting out more exhaust than you are taking in as fresh air. i know i sound like a nerd, sorry

 

I'm still laughing at the fact that you guys think the accord has dual exhaust


oh btw, it's been dyno proven that switching to a single on the v6 accords gives them more power then going to an aftermarket double.

 

Man's got a point.

 

I just think the terminalogy got skewed. What is know known as exhausts, I grew up calling mufflers. If you go to comptech.com and order their exhaust for the AV6 or the cl type S, you get 2 mufflers. So in that sense, yes, the AV6 does in fact have a dual exhaust.

I agree, they Type S and AV6 do not have dual exhausts..


but, for the 3.0'rs out there, could they bolt up a Type S B bipe to their stock system to get the outlets for the dual exhausts (mufflers)?

if so, you guys will be able toget them cheap as comptech is offering the type s's a larger B pipe so people will be selling their stock for cheap.

 

you'd have to cut into the gas tank to get the type S or av6 ones to fit I think

 

i honestly dont kno what to think i wuz just thinkin of doin it to get more air flow to be honest with you guyz!! what we were thinkin of doin wuz one pipe that splits up into 2 pipes for the mufflers with 2 mufflers at the end. i honestly dont see how that would hurt the engine or lose power but....

 

you'd be better w/ one pipe, you can still only flow as much air as the first pipe will allow, putting in a 2nd isn't going to change that.

 

yea but isnt there more air being released ? i had an mr2 with dual exhaust and it ran very good! im just not sure how it would go in the cl

 

hey clracer the pics of your ride was supposed to up like 2 months ago what happened? you were supposed to have a whole bunch of stuff done to it werent you? hurry up or someone is bound to throw the BS flag up....and i think it might have to be me.

 

yea i wish my car was done but it isnt but everything i said i wuz gonna do i've dont most of already just gimme some time n i m very sorry for all da waitin guys but i promise i'll have up some pics. but i m gonna do da dual exhaust thing any way even if i lose power or if i do i just want my car to look good but go fast at da same time and i am willing to do whatever it takes to achieve my goal no matter what!