[NSRCA-discussion] 90 size pattern plane

[Tom Simes]

On Sat, 14 Jul 2007 19:59:50 -0500
"Fred Huber" <fhhuber at clearwire.net> wrote:

> Typiclly I end up having to plug one exhaust tube almost completely
> (just leaving a 1/16 inch drilled hole to let oil out) and the other
> hole gets partially plugged. This is due to the Pitts style not
> having much if any backpressure.  They typically have double the exit
> diameter for each tube compared to the single outlet tube of a stock
> muffler.

I've seen what Fred is describing with some manufacturer's Pitts
mufflers.  However, Slimline Pitts mufflers have restrictors in them so
they produce the needed tank pressure without having to crimp the
outlets.  They really work well - particularly their high volume
models.


Tom
 
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   "Z-80 system stack overflow.  Shut 'er down Scotty, the system's
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Tom Simes                                       simestd at netexpress.com 
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