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Re: Factory exh performance?
> From: "Graydon D. Stuckey" <firstname.lastname@example.org>
> On 10 May 1995 email@example.com wrote:
> > You claim that sleeving a cat makes a big enough difference in
> > flow to be worth the effort Vs an empty cat, but then you claim that
> > replacing all the stock mufflers with straight pipe has no benefit?
> > Your positions appear to be in direct conflict.....
> flow like a straight pipe. Now, in regard to the mufflers, I get the
> impression that Scott has found that the flow of the stock mufflers is
> only marginally worse than a straight pipe, so changing them would result
> in gains, but much smaller than would be found by sleeving the cat.
I don't know about the 5k cars, but both the mufflers on my 4ksq are
little more than big oval glass packs -- a baffle pipe running through a
fiberglass packed chamber. I noticed this when I cut the factory pipes
off the worn-out mufflers.
> Graydon D. Stuckey
Walter Meares Intermetrics, Inc. firstname.lastname@example.org
Information Systems 733 Concord Ave Cambridge MA 02138