At 06:12 PM 03/07/2004, W S Potter wrote:
>We have a local guy, specializes in exhaust systems, "Doc Gas",
Boyd Butler. I have one of his X pipes on my El Camino. My son dated his
daughter for years. Very interesting man. Very heavy into the scientific
analysis of fluid dynamics.
Ray
>He changed
>the sound of Daytona for NASCAR with his crossover pipe. Interesting how
>many now use it. He takes a very scientific approach to exhausts and is one
>of the top people in the field. He describes the exhaust going through the
>tubing as a series of "eggs" being forced through the pipes. That gives
>something to think about. I have not been able to contact a couple of the
>local racers who have worked for and with him on exhausts but I'll be
>interested in their responses when I do. I'll pass along anything
>interesting on the subject.
>
>Wes
>
>on 3/7/04 11:23 AM, Dave Dahlgren at ddahlgren@snet.net wrote:
>
> > I have never bought into the back pressure theory making things better. I
> > will buy into having too much exhaust cam though or the wrong lobe
> > separation for the cylinder head. It is the reason many new cars have
> > variable cam timing as standard equiptment.
> > I do believe though that when talking about torque whoever has the greatest
> > area under the curve in the rpm range that the gearbox is set up for, has
> > the fastest car.
> > Dave
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