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Re: MD & PA Region Sound Requirements

To: "Burns, James B." <BurnsJB1@central.SSD.JHUAPL.edu>,
Subject: Re: MD & PA Region Sound Requirements
From: "Phil Ethier" <pethier@isd.net>
Date: Thu, 27 May 1999 22:18:37 -0500
From: Burns, James B. <BurnsJB1@central.SSD.JHUAPL.edu>


>It has a muffler, but I still don't think most autocrossers
>would call it quiet.  It registers about 101dB at Summit Point, which is
>under the SCCA Club Racing limit of 103dB, but it is still pretty loud.


Since most autocrosses require all cars to have noise levels of roughly
"street legal" levels, I think you are beyond the pale.  Club-racing limits
are considerably higher than "street legal", and many tracks are at 101, I
think.

I know this is a real problem for a NA RX7.  They are notoriously difficult
to quiet down without losing power.

The way to make them quiet and powerful is to use the muffler with the
moving parts, but that's hardly legal in ITS...

Phil Ethier    Saint Paul  Minnesota  USA
Lotus Europa, VW Quantum Syncro, Chev Suburban
LOON, TCVWC, MAC
pethier@isd.net     http://www.visi.com/mac/




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