"Properly muffled" is a rule, not site dependent. "Properly" may be, but
"muffled" is not. The rule doesn't say the exhaust has to have a muffler.
Turbos muffle the exhaust, whether "properly" that certainly would be open
to determination by the site. Open exhaust is not muffled and expressly not
allowed by the rules.
Charles
Charles W. Cox - Broker
Commercial Real Estate Financing
Cox & Associates
Santa Cruz, California
Telephone: (831) 466-3440
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-----Original Message-----
From: owner-ba-autox@autox.team.net [mailto:owner-ba-autox@autox.team.net]
On Behalf Of John J. Stimson-III
Sent: Tuesday, May 30, 2006 8:19 AM
To: charlescox@coastalbay.com
Cc: 'Dennis Clark'; ba-autox@autox.team.net
Subject: Re: noise at Monster
On Tue, May 30, 2006 at 08:02:52AM -0700, charlescox@coastalbay.com wrote:
> Car must be "properly muffled".
Charles, "properly muffled" is dependent on the site. Many sites do
not have sound restrictions, and an exhaust system without a muffler
can be proper. Rob's GT2 has a open exhaust muffled only by the big turbo,
and he has run at Candlestick. It comes down to just how loud the car
is, and where you're trying to run it.
Dennis, have you done any sound level measurements on the car? The
region's sound policy stated in the supplemental rules is 95dBA
measured at 100 feet from the car.
--
john@idsfa.net John Stimson
http://www.idsfa.net/~john/ HMC Physics '94
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