Hey everyone. I know there was a thread on this once but just wanted to start this new one to see if anyone has pics of oval piping on their car. Also any pros & cons on doing so. If there is more info on this then sorry, I'll search again after.

Hmmmm.. Anyone

my guess would be that it would allow for running of larger pipe with less ground clearance loss. might sound pretty sick too. me and a friend are thinking of putting square exhaust on his truck to see what it sounds like.

pro:

bigger pipe, more ground clearance.


con:

price.. the tubing is PRICY.










noone here knows jack **** about it.
and if they do, they dont talk.

because if you do a search you'll find like 5 threads ive made over the last 4 or 5 years.... noone replies or says anything useful.


i would be running it now, but its cost prohibitive.

yeah I did a search & found all your threads MrDude. Seems like a lost cause unless you have a lot of money huh Thanks for the help though.

if i ever get the chance, i wouldnt mind taking 2 rollers, and spacing them apart, then carefully compressing some 3.5 -4" pipe and make a nice wide thin tube...... but thats alot of work for somthign so minor...

if i ever have a shop and i can do it economicly, i might just sell cheap oval exhaust tube.. lol.

It is very valuable stuff but only if you are looking at a true dual set-up for our cars. There is plenty of room for 3 and 4" systems right down the length of the stock location. Because of that it doesn't make much sense to go with anything fancy. The stock exhaust on LS1's come with some small oval piping off of the exahust manifolds. You may want to check out another board to get some ideas there. Do you want to run duals, or where you just asking in general.

yea I was thinking of a true dual setup that's why I asked about any peoples experience with these pipes. But like you said Shifty, the stock running route is more than adequate for 3 or 4 inch single setups. Might have to just go that route

Yea oval stuff is awesome for true duals. Spintech makes some cool oval stuff. I think there is a few others but I cannot remember off hand.

Woooooooow I checked out the spintech website & I see what everyone means about pricing for oval piping, transitions, & elbows!!! It would be a really trick setup but the price kinda hurts

Now for some artwork......watch out Picasso.
A design like this would allow you to keep the two sides separated (dual exhaust with one pipe), but I've never seen anyone make it. Probably because it would not help flow any, probably hurt it, since the same pipe without the divider would flow better.

If you thought oval pipe was expensive there's no way you'd want to pay for that divider down the middle.

I priced that system out last year when somebody brought it up, just to the front of the axle was around a grand...maybe someday BUT...what about, now bear with me cause I'm gonna get ******* and make some work too. taking some 3" pipe since it's cheap enough, run it through a band saw cutting it down the middle, squishing each side, then welding back together? Alright, dumb idea, but if that was done it'd be really cheap if you were'nt running true duals out to the bumper. Just alot of neck cramps and welding wire.

I'm going to run duals dumps with an x-pipe from my hooker longtubes when I get to that bridge. I have thought about transitioning and doing the x in oval and then transitioning back to round before my bullet mufflers....but we'll see. I'd like to be able to fit a mccord or QTP electric cutout on each side behind the collector also. But with a T56 and a global west traclink arm and alston sfc's, even with a custom double hump crossmember it's gonna be a big challenge.....like I said we'll see.

You can buy lengths of 1 7/8" aluminized pipe, cut it down the middle, and weld sections of similar gauge sheet metal in to make your own. I dont know how the hell you would do bends tho...

hey, that isn't a bad idea with cutting and making your own pipes like that. imo, bends could be done with mandrel bend pieces, then cut them down the middle, then take your flat stock, cut it to size in like a "J" shape and weld it up. good thinking unknown-host. just my .02.

thanks, pat

Neat idea, but I think by the time your said and done sectioning everything out, fitting, tacking, welding how many feet of weld for all the pipes, I wonder what the time cost factor would be over just buying it and installing it. My necks hurting already just thinking about it

What we should all do since these boards & all its members are awesome, is start like a request to certain companies for mass producing an oval exhaust setup. Something different & exciting for a change.....Then again I'm only dreaming cause with this comes supply & demand. And I know there isn't a demand for this. Just wishful thinking

Would it be possible to buy larger regular round tubing and bend (squeeze) it down to as close to an oval shape as possible for ground clearance?

I don't know jack about metal bending or equipment involved, but there has got to be something you could use to bend sections at a time.

I know some factory exhaust systems have flattened sections. My tips are 'D' shaped with the flat part facing down, but that's because I didn't see that 6" curb behind me one night....

A more important question that would be great to have answered is the flow capabilities/characteristics of oval vs round pipes. Anyone wanna make scientific comparison for us?

Laters,
Scott

A circle is the optimum shape to maximize area and minimize perimeter. An oval pipe will have a larger perimeter than a round pipe of the same cross sectional area, and will therefore flow less due to friction.

http://www.drgas.com/product.asp?id=24

Befor I desided to take the dive into Twin Turbos I prices a setup from Dr Gas for Dual oval Exh. 2 spintech muffs custom sized for better ground clearance since My car is lowered with sided exits right befor the rear tires.

So Oval Tube coming off mY hooker SC Lt's into a oval X pipe Into 2 spin tech muffs and side exits with slash cut oval tips. was $750 to my door

Hey TPI383,

did you end up buying that setup & installing it, or did you just price it & that was it. Also, who did you talk to at the company to get your setup. I might be interested in doing something new like that. thanks.

cool, what is you all's idea on routing, this is kinda what i would like to do

The only pheasable way to do it in my opinion knowing the underside of a thirdgen like I do is to route it all down the passenger side, crossing the driver's side pipe to the passenger side the way the stock y pipe does. You will have to do some clearancing to get 2 pipes by a few places under neath the car, one way or another. Basically, if you go underneath the transmission crossmember, oval exhaust or not its going to be LOW. My exhaust is 2 1/2", basically bolted to the underside of the car and i would guess I have at most 2 1/2" of ground clearance.

Great! Keep the ideas rolling everyone. Then maybe when this thread dies I'll finally have enough money to fab something up that I like. Money toward the car isn't first priority for me anymore. Just had a baby daughter Maybe I should wait till she's old enough to help then I'll tackle this

not mine

i agree about the ground clearence, but how could you get both pipes over to the pass. side with long tubes? good idea, don't get me wrong, but you would still have to cross the crossmember to get it to the rightside. just my .02. thanks, pat