On the contrary Carl. Virtually all headers (after market) produce more
noise, in fact, do not muffle the exhaust in any way, typically furthers
exhaust flow thereby promoting (typically) more power causing more noise
both in the engine compartment, exterior of the car and out the exhaust.
A muffling device must, by its very nature, make the car quieter than
without it...that is the purpose, intent and reason there is a rule for it.
No one has stated in this debate, a can filled with deadening material is
what is required.
Neon SRT-4 is a turbo car and accordingly (and in compliance with the rule)
muffles the exhaust by having the turbo in the exhaust system. Nothing and
no one has suggested ruling a similar setup or this car illegal unless of
course, it is too loud according to the interpretation of what is "adequate"
noise suppression.
When you are talking about the spirit of the rules, look to why there was
any rule mentioning the requirement to muffle the car at all...for the
obvious reasons, the more noise we make, the more impact on event sites and
negatively on our sport resulting in lost sites, inability to obtain new
sites and so forth.
Saying someone running an open exhaust is in violation of the rules is not
being too hard on them...that is the rule, and for good reason.
Charles
-----Original Message-----
From: owner-ba-autox@autox.team.net [mailto:owner-ba-autox@autox.team.net]
On Behalf Of Carl Merritt
Sent: Tuesday, May 30, 2006 10:19 AM
To: ba-autox@autox.team.net
Subject: RE: noise at Monster
> the event regulations...there still must be some device in
> the exhaust system used to muffle the exhaust.
I'm sure a set of headers or simple exhaust manifolds substantially muffles
the db level of the engine without them. The same could be said for
downpipes, or even a length of pipe out the back instead of just dumping the
exhaust out under the car. Hence every car has a 'muffling device' on the
engine, the only question is having enough 'muffling devices' on the car for
adequate sound levels.
Me thinks you are trying a bit too hard to define a "muffler" as a large
heavy can filled with sound deadening material. Many cars don't need them
to 'muffle' the exhaust sound to appropriate levels, some don't even have
them OEM (Neon SRT-4), and ruling those cars illegal strikes me as both
silly and against the spirit of the rules, at least as I interpret them.
-Carl
300ZX ITE/OSP (Obviously Silly Protest?)
|