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RE: Found a way to Quiet My Loud Exhaust

To: "'Larry Miller'" <millerls@ado13.com>, Spridgets <spridgets@autox.team.net>
Subject: RE: Found a way to Quiet My Loud Exhaust
Date: Fri, 17 Nov 2000 11:13:30 -0800
Any kind of noticable performance decrease? Arent stock rockers only 1.25? I
am just considering going to the extra lift roller rockers, but not sure
yet.

Thanks

Toby


>
>I found a way to tone down my loud exhaust without touching 
>the exhaust.
>Switch from 1.5 roller rockers to stock rockers.
>
>Some time ago I blew out a rocker arm on the roller rockers. 
>The rocker came
>loose from the bushing. Until I can get around to fixing it I 
>just installed
>a set of stock rockers.
>
>4 to 1 header, 1.5" pipe, and 15" glasspack.
>
>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.
>
>Larry Miller

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