Can I create more power with the exaust system?

HPaddict · 11-16-2007

Good eve everyone.
Some one told me today that i can increase horse power with the exaust system by pointing the tip straight to the ground. I heard something similar in the past but it was about the sound that it creates by doing that. The person that i heard this from builds racing engines, I have personally seeing his work and he does very good work(track tested). Could that be true, and how can i test it??

marshall_series · 11-16-2007

I haven't ever heard of that but it sounds interesting..

vicma762004 · 11-16-2007

ugh dont think you would creat any more power dumping the ends of your mufflers, i had that, got my wife annoyed till i she made me buy shiney new tail pipes

Veronica · 11-16-2007

Hello.

That would work if the rest of the exhaust system was so unrestricted that lack of back-pressure was a problem, which, odds are, lack of back-pressure is not a problem.

A very simple way to ballpark that would be to look at the air/fuel flow system that's on the car, from top of the carb to end of the tailpipe and figure that every 90 degrees of bend in the path reduces the hp by about 10%. From the top of the carb to the intake port is pretty much 90 degrees, from the intake port to the first bend in the exhaust manifold/header is another, and then all of the twists and turns to get to the back of the car, etc.... Different mufflers have different levels of restriction. On a 71-73 car that's basically in stock configuration as far as air/fuel flow path goes, removing restrictions would be the way to go, not creating more. Hope that helps.