Re: Corky Bell's "rules of thumb"...exhaust size

[MHLIGGINS@aol.com]

Frederic Breitwieser  wrote:
>Basically, its a tailpipe inside a
>tail pipe, with the inner one connecting to your engine.  The outside
>tailpipe, or sheath, has a (wild guess here) 1/2" gap between it's inside
>wall and the outer wall of the regular tailpipe.  This sheath then attaches
>to a funnel or air pump (they are testing and playing with it) and
>hopefully by increasing the velocity outside of the tailpipe in a
>controlled manner, the venturi effect will take affect and suck the exhaust
>gas out.

     This sounds very similar to the exhaust system on an '86 Subaru we once
owned.  Pipe within a pipe.  It needed some exhaust work done, so I traded it
so I wouldn't have to try to fix it.  (I'm still trying to forget all the
problems I had to fix on it's replacement........)

     --ml