That would be engine sound not exhaust sound. Right?
This is recorded with the meter pointing toward the rear of the car.
Larry
----- Original Message -----
From "David Riker" <davriker at pacbell.net>
To: "Larry Miller" <millerls@ado13.com>; "Spridget Mail List"
<spridgets@autox.team.net>
Sent: Saturday, November 18, 2000 8:10 AM
Subject: Re: Found a way to Quiet My Loud Exhaust
> Isn't the difference in sound actually less INTAKE growl? On Honda's with
> VTEC variable valve timing there is a noticeable difference in the intake
> sound when the high lift cam lobes come into play. When you open up a
Civic
> Si it's really noticeable, and an S2000, well, change your shorts.
> David Riker
> 74 Midget
> 63 Falcon
> 70 Torino
> http://home.pacbell.net/davriker
> ----- Original Message -----
> From: "Larry Miller" <millerls@ado13.com>
> To: "Mike and Kerry Gigante" <mikeg@vicnet.net.au>; <Daniel1312@aol.com>;
> <spridgets@autox.team.net>
> Sent: Friday, November 17, 2000 3:20 PM
> Subject: Re: Found a way to Quiet My Loud Exhaust
>
>
> > Big time difference here. My wife even noticed, the first time she was
in
> > the car after the switch, she asked "What did you do to make it
quieter?"
> >
> > Larry
> >
> > ----- Original Message -----
> > From: "Mike and Kerry Gigante" <mikeg@vicnet.net.au>
> > To: <Daniel1312@aol.com>; <millerls@ado13.com>;
<spridgets@autox.team.net>
> > Sent: Friday, November 17, 2000 3:13 PM
> > Subject: Re: Found a way to Quiet My Loud Exhaust
> >
> >
> > > There is something else going on here. I switched the other way on my
> > > rally/race 1380
> > > and in my race +0.020" motor and the noise levels were not noticebly
> > > different.
> > >
> > > Mike
> > >
> > > ----- Original Message -----
> > > From: <Daniel1312@aol.com>
> > > To: <millerls@ado13.com>; <spridgets@autox.team.net>
> > > Sent: Saturday, November 18, 2000 6:56 AM
> > > Subject: Re: Found a way to Quiet My Loud Exhaust
> > >
> > >
> > > > Did you measure how much less power it was making?
> > > >
> > > > In a message dated 17/11/00 18:56:09 GMT Standard Time,
> > millerls@ado13.com
> > > > writes:
> > > >
> > > > << Using a dB meter inside the car, pointing rearward, the exhaust
> noise
> > was
> > > > 125 dB at full tilt with the rollers. With the stock rockers it's
90
> dB
> > > > under same conditions.
> > > >
> > > > I had no idea that the rockers could make that much difference in
the
> > sound
> > > > of the exhaust. This was the first time I had run this engine with
> > stock
> > > > rockers. >>
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