They do fall off if not extended correctly. How to do that, I can't
say. In our testing, extended exhaust pipes are of marginal benefit -
the valve overlap on these BS engines is rather small. I'd reccomend
focusing elsewhere.
--
Kevin Edwards
Mechanical Engineer
University of South Florida
kevindedwards@gmail.com
(813) 842-6030
On Mon, 14 Mar 2005 18:08:18 -0700, alex.durham@telusplanet.net
<alex.durham@telusplanet.net> wrote:
> Hi everyone,
>
> We are considering relocating the muffler. Has any one done this succesfully?
> I've heard of one breaking off.
>
> My main concern is what it will do to the torque/power. My understanding is
> that the back pressure might actually help give the engine more bottom end
> since we rev so low. All the karters seem to go to a header when they are
> reving in the 4000-6000 range and keep the muffler for the lower range stock
> classes.
>
> We are thinking of adding a straight run of pipe 9" long. Would this have any
> effect or is the muffler that much more restrictive?
>
> Any help or input would be greatly appreciated.
>
> Thanks,
>
> Alex Durham
> U of Calgary
> www.enme.ucalgary.ca/~minibaja
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