I am wondering if oval exhaust piping have any effect in flow? What is the difference between a circle pipe as opposed to oval? Say it was on a turbo'ed car, and the pipe is 4 inches. TIA

 

http://burnsstainless.com/Oval....html

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nubcake &raquo;</TD></TR><TR><TD CLASS="quote">I am wondering if oval exhaust piping have any effect in flow? What is the difference between a circle pipe as opposed to oval? Say it was on a turbo'ed car, and the pipe is 4 inches. TIA</TD></TR></TABLE>
The main difference is one is oval and the other is circular.

regards,
captian obvious

 

Nice, Art.

I'll take a shot at this. For any given cross-sectional area, an oval tube will have more internal surface area than a round tube. That means more boundary layer drag, and more heat loss. Both would tend to increase backpressure, but probably not by enough to be measurable or to produce a meaningful difference on a dyno, unless the tubing was REALLY flat.

 

wow. great thread.. i could use some of that under my oil pan!

7/8" more clearance.

 

I was thinking about going 4" and using the Burns oval piping to go under the real lower control arm and the gas tank. Hopefully someone has tried this.....it would be nice to see some pics if someone did.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">wow. great thread.. i could use some of that under my oil pan! </TD></TR></TABLE>

 

damn $$$$$$$$$$$$$$$$

i've actually always wanted to run a nascar banana pipe on my car......haha....it'd be a hell of a lot cheaper

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NAstreetEH2 &raquo;</TD></TR><TR><TD CLASS="quote">damn $$$$$$$$$$$$$$$$

i've actually always wanted to run a nascar banana pipe on my car......haha....it'd be a hell of a lot cheaper</TD></TR></TABLE>

$135 would get you something nice to put under your oil pan, two oval to round conversions and a foot of the oval stuff.. denting $200+ down pipe would suck dick though..

does anyone make the oval stuff in mild?

woah.. look what i found!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">$135 would get you something nice to put under your oil pan, two oval to round conversions and a foot of the oval stuff.. denting $200+ down pipe would suck dick though..

does anyone make the oval stuff in mild?

woah.. look what i found! </TD></TR></TABLE>

you have a point...

 

Bump.

 

bumping this up....


does anyone have any pictures of a 3- 4 inch oval exhaust going under the gas tank? i would like to see how much ground clearance you have.

thanks

dave

 

Bump, TTT.

 

I've got the smooth oval transition under my pan now....

I got it from too many speed bumps and parking lot entrances...

Damn smooth transition though..lol

&lt;SideNote&gt; Arturbo&gt; what's your heading in Japanese under your name say? all I got out of it was giraffe and beer