On a mildly modded NA car would oval runners with oval velocity stacks such as http://www.rossmachineracing.com/ovalstack.html and http://www.rossmachineracing.com/ovaltube.html lose power?

My flange I will be connecting them to is oval so it would be alot easier for me to do this right? Or is there a trick in bending the ends of a tube into an oval?

Thanks

 

*bump*
??

 

those aren't really velocity stacks.... i think they are to be welded into the floor of the plenum so the leadin into the runner will be smooth and follow the radius. i don't think they are meant to stand inside the plenum off the floor.

as long as the volume of air in the oval runner will match that of a round runner i don't see how it would adversely effect performance. they are probably just squeezing a round pipe into an oval anyhow.

 

Thanks, but these will still help evening out the air flow right? If not can somone point me to a site with real stacks?

 

http://www.velocity-of-sound.com