Dual exhaust on a fbody? all you have to do is take around 4 inch diameter pipe and ovalize it down.... flows the same and sounds SWEET

 

ovalize? lol

 

Why "ovalise" it yourself???? As soon as you hit the first bump in the road it will be ovalised, then it will fall off, then the sparks from all that metal dragging will burn your car up. I guess then you can get a 1 gen Camaro and put true duals and get away with it Just my thoughts..

 

I've got a true dual exhuast setup I wouldn't think of not going with it in a performance setup.

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383 86 Camaro Z28
10.5:1compression Dart Pro 1 Aluminum heads 215cc>2.05/1.60 valves,400 steel crank,cam specs:224/234 at 050 525/525 lift,2500 stall converter,shift kit,3.42 gears,770 Holley Avenger,Victor Jr. Intake,true dual exh,Hooker headers with 40 series Flowmasters,MSD Coil and Module.

 

I have a dual 3in setup, I need it. I like it. The car is mine, so I'll do what I want with it. Wait a minute...don't ricers have single exhaust??? That makes all cars with single exhaust Rice...I hate that stupid term, most of the guys who use it are probably pissed cause they got whipped by one. OK, I am done venting now. Have a nice day

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Black 89 IROC...355, Solid Crower Cam, TFS heads.
12.0 @ 120.3mph with a 1.9 60ft...all motor

 

I have dual exhaust from the manifolds back to dual tips. I haven't done ANY exhaust work but there are 4 glass pacs (two small 'resonators') and dual H-pipe. My car has an unexplained amount of power for a 305 and I'd attribute it to the exhaust and gearing.

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1985 IROC-Z, nuff said :P

 

i, too, had true duals on a 305 3rd gen. except for the hedders and a performance-rebuilt carb, everything was stock. that car flew fyi- i'm having true duals run on my current 3rd gen tomorrow AND i'm replacing my "high flowing" 3in after cat!!

 

duals sound so much better than singles. I have heard the borla catback on the 4th gens and I really think it sounds great to. Either dual it or get a borla catback.

 

Duals is the way to go! Ive got hooker 1 3/4 super comps and dual 3" flowmaster exhaust on my 87 T/A. Talk about power increase!! It picked my car up .3 in the 1/8 over 2.5" duals 1 5/8 shortys routed factory location.. Anyone who takes a little time to think about flow characteristics on the factory f-body exhaust would realize that GM really fubared our cars from the factory. put duals on a stock tpi and watch the mustang boys scatter!

 

So to run Duals, what do you do about the O2 sensor, do you use a crossover or whatever they're called, and are there bullet shaped cats?

Pretty new to this stuff, so any answers you could give me would be much appreciated.

 

I am planning on doing a true duel setup in the next couple weeks, I'd love to know your guy's different setups and how you did it.

I plan on just running hooker shorty headers and then just running the pipes (2.5") straight back and two mufflers dumped right in front of the axle...

any thoughts (other than "you cant do it") ?

 

Had Dual 2 1/4" and single 3", the car had a lot more go to it with the 2 1/4" setup. On wensday I'm getting my dual 3" with flowmasters put in not sure what kind of ground clearance I'll have but I'm willing to sacarfice it for the extra power, and the sound.

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406SBC
-DART SPORTSMAN 2 HEADS
-RPM INTAKE
-750 SPEED DEMON MECH SEC. CARB
-HEDMAN HEADERS
-COMP CAM EX .507/.510

 

Thats what I'm saying, who cares if I lose 1/2 an inch or even an inch of clearance? Not like I'm going to be driving over speed bumps or up drive-ways all day....

 

No answers? You use an equalizer and put the o2 sensor there? Oh and is there a cat?

 

on a dual exhaust setup, where on the car is clearance a problem? Behind the transmition right? how about raising the backend about 2"? hardly noticible but would make for more clearance?

what about exhaust equalization? my muffler guy when I asked him about duals said, it wont work because there is no way to connect the two pipes to equalize the exhaust backpressure which can hurt performance!?

 

The problem I have with clearance is where the headers curve back to meet the collectors. Also, where the mufflers are (just in front of the rear axle) My car sits stock height and the lowest point of my exhaust is 4". As far as an equilizer tube(h-pipe) I dont have one on my car and it seems to run just fine.

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1987 GTA 355, carbureted, TFS heads(non G2), 6-speed, McLeod clutch, 11.3:1, dual 3" flowmaster 2-chamber exhaust with NO tailpipes, 98 z-28 wheels, soon to be replacing weak 10 bolt with 12-bolt...gettin tired of breakin axles....

...Whatever turns your tires.....