Makin' popcorn

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Jun 23, 2010 | 09:03 AM

#21

Grendel4

Banned

Joined: Mar 2010

Posts: 5,403

Likes: 7

From: Southwest Florida

Quote:

Originally Posted by rounder

you got no baffles... essentially your running drag pipes. They're gonna pop like mad and also th lack of backpressure makes it very hard to tune the carb correctly for running at low to mid rpms

Rounder is quite correct, IMO. The term 'backpressure' is often used by professionals to keep us amateurs from pulling our hair out. It's actually 'wave reversion' that Rounder is referring to, and he almost certainly knows it. He's just being polite.

I'd start with the exhaust. Too many people just start hacking away at exhaust without giving it much thought. Sometimes you get lucky, most of the time -- Not so much.

Here's a decent article about what's going on inside your exhaust system and how it works. Sort of.

It's kind of boring to most. But technical stuff doesn't bother me all that much.

At any rate, give it a whirl and read it just so you can be as confused as the rest of us --

http://www.bigcitythunder.com/pages/...ng_exhaust.pdf

P.S. It gets interesting about 2/3 of the way down.