question regarding header & tuned pipe

[Tomanek, Wojtek]

Is there 4-storke Greve pipe and where do I get one??
 
-----Original Message-----
From: Woodward James R Civ 412 TW/DRP (Test Ops)
[mailto:James.Woodward2 at edwards.af.mil]
Sent: Tuesday, March 25, 2003 4:20 PM
To: discussion at nsrca.org
Subject: RE: question regarding header & tuned pipe
 
The Bolly pipes/mufflers also make for good ballast if you hoping to
increase the weight of your plane.  The ES, Greve, Asano, will save you
ounces over a Bolly.  Having tried the 480, 590, 565 Bolly mufflers, ES
2C140 pipe, Greve, and some home-made multi chamber pipes, the Bollys have
always been the lowest in power output.  The Bollys do sound quiet, but that
also may be due to the decrease in performance.  The Bolly 565 is a
rectangular muffler that outperformed the 480 and 590, but weighs over 6.0
oz.  
 
Jim W.



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