[F500] Any road racers use mufflers?

[McAbee, Chuck]

First time I have ever heard of the rule being enforced.  I think the rule
came into being in the early 90's when the Elliott Brothers were running
some real strange pipes on their Kawasaki's that extended way beyond the
rear of the car.  I have no idea who it was that proposed the rule.

What are the db limits in autocrossing now.  With the Aaen pipe in race
conditions I generally get readings of 94-96db without the muffler.  While I
have a muffler I have never run it.


Chuck McAbee
SEDIV #16  

> -----Original Message-----
> From:	Brian Novak [SMTP:racerf500 at hotmail.com]
> Sent:	Tuesday, September 10, 2002 23:20
> To:	f500 at www.f500.org
> Subject:	Re: [F500] Any road racers use mufflers?
> 
> Wow, I have never heard of that ever happening, let alone someone actually
> making an issue that a muffler makes your exhaust illegal, especially when
> that mufflers job is to make you legal.  Most of us road race guys in the
> CenDiv don't have to contend with that except at Waterford Hills, but they
> have major noise restrictions and I don't even think they even care what
> you do as long as you make the 75 db (Perforated Coke Can anyone?).
> 
> As for anything being official and superceding the rule with mufflers to
> make sound, I believe that it is always just "overlooked" and that nothing
> would be done unless someone wanted to be evil and file a protest.
> 
> Brian Novak
> #56 NovaKar J-9
> Hoosier Tires
> <http://www.hoosiertire.com/>
>  
> ----Original Message Follows---- 
> From: John Whitling 
> Reply-To: f500 at www.f500.org 
> To: F500 at www.f500.org 
> Subject: [F500] Any road racers use mufflers? 
> Date: Tue, 10 Sep 2002 22:17:18 -0400 
> At the SCCA Solo 2 nationals we had two competitors disqualified because
> their exhaust was more than 24" past the rear axle (they were about 2 1/2"
> longer than the max). The reason they were long was because they had
> mufflers, which the protest commitee reasoned was part of the exhaust.
> Mufflers are not required, BTW. The cars involved have Rotax motors with
> Aaen pipes and mufflers. They do not have a custom exhaust. 
> If you ever have to use a muffler at a track to make the sound limits is
> the 24" rule superceeded, or are allowances made for the muffler? 
> Thanks 
> John Whitling 
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