| Re: Interior resonance / exhaust drone... |
Subject: Re: Interior resonance / exhaust drone... by DrDyno on 2014/8/23 22:15:45 Quote:
Hi Schrade, I swapped out the stock mufflers on my '96 LT1 for a set of Allen Stainless "chambered" muffler eliminators. The exterior sound is incredible but... so, too, was the interior sound! Researching "Corvette drone" and "Corvette resonance" on the web, I learned that resonance can be cancelled out with either a "resonance canister" attached to each exhaust run (on dual exhausts) or, by attaching a pipe between the two runs to help cancel out the individual resonance. I chose the latter, as the following pics will show. The holes drilled are 1/2" (as one of the web posts had suggested) and the "H" Pipe (as the muffler folks call it) is 1-1/2" diameter. I still have some drone but now it's about 1,000 RPM higher up the scale and much "softer" than before the mod. For $50.00 at my local muffler shop, I'm very happy with the results! EDIT - Not sure why the pics didn't show up... just click on "torn" image. |
