2_point8_boy

does anyone know what year 3rd gen came with "true duals"? I know that one of them did, but I can't remember which one, it was one of the V8's and it was only a single model. Also, where was the O2 sensor? Was it in the H-pipe? Just curious if anyone knows.

2_point8_boy

Nevermind the year that it was available. I found that it was an option on 89's with the G92 option. It's RPO was N10. Now the question of finding out where the O2 sensor is...

The option was true duals with 2 cats, so there has to be an O2 sensor somewhere. If you know, please hook me up with the info.

6SPEED84Z28

iTrader: (1)

third gens never came with true duals. late model tuned port performance package cars had dual cats but single exhaust after. 1982 cars had single exhaust but split to dual mufflers

6SPEED84Z28

iTrader: (1)

o2 was in exhaust manifold.

Akshay

The 5.0L stangs came with true dual. The left & right exhaust manifolds had their own pipes, cat., & mufflers.

The 4.6L stangs exhaust setup was similar to Camaros.

Akshay

6SPEED84Z28

iTrader: (1)

4.6 mustangs have the same style setup as their 5.0 l mustangs it is not like a camaro at all.

Akshay

Does the 4.6L use the H-pipe as well?

Akshay

Gumby

A camaro and a mustang both have 4 wheels and oddly enough in a similar configuration pointing all the same way. Round too.

Kj Rockz

How in the Fu(k could an fbody have true duals.
there is no space for that.

Akshay

By saying a 4.6L Mustang exhaust having similar setup as a Camaro's exhaust, I meant both used a Y-pipe. But I guess I was wrong.

I know the 5.0L stang uses an H-pipe. But I didn't know the 4.6L used it too.

Back to 2_point8_boy questions. Depending on smog regulations, you can have the dual cat. setup installed on your car and fabricate a place for the o2 sensor on the Y-pipe. GM claims a 15-25hp gain (iroc/z28 model).

And get this, GM says that a dual exhaust setup for the Trailblazer is good for 30 extra horses.

Akshay

Kj Rockz

On what?

br()bert

My old car was a 98 mustang gt, it had dual exhaust all the way back with 4 resonators , two cats and two mufflers. NOTHING like a camaro or firebird And btw WHO CARES? this is a 3rd gen camaro and firebird site........

Kj Rockz

thats what i'm saying. thast is just messed up

bes217

They called the RPO N10 dual exhaust, but really what it was was dual catalytic converters that went into a single pipe after the cat.

2_point8_boy

I know that it was only dual cats, but since in cali you can do anything you want after the cat, then you can, in theory, have true duals. What I am looking at, is where the O2 sensor was located on the N10 option. From what I have been able to find out, there was a single O2, mounted in the pass. manifold.

What I am actually looking into is an X-Pipe before the cats, with the O2 mounted in the X, then it splits again into the duals. I have heard really good things about this "X" design.

88IROC350TPI

wrong

V6sucker

ok... the only thing "dual" was the cat converters.
On the 60's EARLY 70's yes... since? forget it from the factory.

There is room to run true duals, believe it or not. You just run oval pipes. Seen it done many times.

is there a gain? not really, unless you are a big V8, and I mean bigger than 383, or running a S/C.

For the V6? forget it. Not enough exhaust flow. Your Trq will fall through the floor pan to next to nothing. A High flow cat alone costs you Trq, but you do gain minimal Hp.

As far as I know, all but the I4, V6 mustangs from the 70's on were all true dual. But the exhaust for the most part was designed by Flowmaster since the mid 80's. They know their shiznit.

Kj Rockz

well hw is it done then?

Kj Rockz

see no asnswer, well if you speak of sumptin i expect you to be able to poove it. I mean i'm not going to just take your word for it.
I'm not that stupid

V6sucker

actually, I have seen as stated above, many 3rd gens with true duals. And how they did it I also told you.. with oval tubing to actually gain room under the car. A 3" oval pipe is only 2 1/4 tall. But it is also 2 3/4 thick.

pasky

http://home.earthlink.net/~chris255/

Tuh Duh.

Unfortunately, I just noticed that link doesn't work anymore, had about 6 thirdgens with true dual exhaust setup. here is one:

https://www.thirdgen.org/techbb2/att...postid=1611784

br()bert

tuh duh!!!! page not found lol, didnt dead bird do a dual set up?

AM91Camaro_RS

here's a pic i found somewhere a while back...this setup is for a 3rd gen, it ran UNDER the rear axle. i have some more pics somewhere, i think they're on my other computer. i know i have found a bunch though.

CamaroManBlack

I've got a buddy with an '84 Camaro (Sport Coupe) that did a V8 conversion from his blown V6. He made his own true dual exhaust using two factory-style extension pipes, though I can't remember what he did for the H-pipe. I do know that though the pipes sound good, they hang too close to the ground and scape every time him and I went for a joy ride in it. They're mounted as close to the floorpans as he was willing to go with them. I think it's his H-pipe setup that's making his system too low; the rear portion of it goes over the axle rather than under it.

According to the exhaust catalogues where I work, there was never a factory dual exhaust for a third-gen. When I asked around about why that was, I was told that a single extension (intermediate) pipe was better for torque.

I agree with V6sucker on the comment about full duals w/ a 6-cyl....

Gumby

The duals I have seen were run side by side down the stock location. Lots of cars need to be done like that cause of clearance.My Buick "needs" a new cross member to run duals or run them side by side.

AM91Camaro_RS

i know, this isn't 3rd gen, but i put true duals on my buddy's 01 stang with the 3.8 v6. it picked up torque! stock, it would just barely chirp the tires...we put full length headers on it which had 2.5" collectors but we ran 2.25" piping, through dual flowmasters and into some stock GT tailpipes, it'll spin the tire(s) a whole lot more now!

2_point8_boy

basically, here's what I am looking at. If at some point in the future, I decide to do a motor swap, I might want to have true duals. Since the N10 option was a dual cat setup, and here in California you can do whatever you want after the cat, I was doing research on how I might go about getting it "legal" for California. If it was an option for the car, then you can go on ahead and do it without having to have an E.O. number or a B.A.R. label, but since it was only an option in '89, I would have to "do a swap" of '89 motor and crap, which in theory is exactly the same as the motor and trans. options of the previous year.

I know that it would probably be a little pointless on my 2.8, but if I start planning the future now, then by the time it actually happens, I will have some up with an answer for 99% of my roadblocks.

Kj Rockz

i'd still like to see it. seeing is believing

Kj Rockz

well we know they can do it on mustangs

AM91Camaro_RS

being able to do it wasn't my point... it GAINED TORQUE. being able to do it wasn't the hard part.

Kj Rockz

and your point is...

mw66nova

iTrader: (13)

sticky on the exhaust bored...

https://www.thirdgen.org/techbb2/sho...hreadid=204351

AM91Camaro_RS

everyone says that you will lose torque, especially on a v6...a nicely tuned exhasut system will not hurt performance. my point is that making a general assumption that running duals on a v6 will cause you take lose torque, won't always be true. i was simply giving an example to show that running true duals on a v6 engine, stock one at that, can help it if the correct size pipe is used.

thanks for posting the link to that thread, mw66nova! i have seen that one before and it shows some nice dual exhaust setups on 3rd gens.

mw66nova

iTrader: (13)

one thing you have to remember is that the 60* v6 has alot of other limiting factors that exhaust alone won't help. the heads need tons of help and a bigger cam wouldn't hurt. the big bends in the intake manifold design don't help the deal either. it's pretty hard to get these thing to perform well with just bolt on parts.

AM91Camaro_RS

oh yea, i definately agree with that! i know i've got lots more inside my motor.

Gumby

I have read many times that until you get above 500hp you do not "need" dual exhaust. A proper single that lets the engine breath is enough but the problem comes when most stock single exhaust do not flow well and then dual seam to make it run better. When a proper single would of done the same thing.

But of course dual are just nice to have, just to have them.

I will do dual on my Buick this summer but wont be doing it to my 6.

88IROC350TPI

Heres the new link to the 3rd Gen Dual Exhaust page http://mysite.verizon.net/vze84hud/duals

TONS of pictures of duals on third gens

AM91Camaro_RS

thank you! i could not find that page either. i know i had saved it at some point...must have been on my other computer.
anything that has been thought of for running duals on one of these cars is probably on this site! (something close anyways)