Another Exhaust Thread :)

jtbshaw · 08-03-2010, 11:09 AM

T, the RB mufflers are the best for the rotary IMO. I have been using them for years with fair success in accomplishing what you are trying to do......quiet without losing too much performance. I have had to modify a few RB pre-silencers to fit in limited areas and was able to see the internals, which is as Ted mentions...perforated and offset with a bunch of curly stainless noise suppression material.

You may want to also consider a heavier wall thickness if you purchase tubing...this takes out a good bit of the "metallic" sound in the rotary exhaust.

On a different note, I will shoot you a PM soon about seeing if you can help me with a intake plenum design for a sidedraft Weber (DCOE).

Todd B.
(formerly of No Limit Industires in Alabama)

08-03-2010, 11:09 AM	#30
jtbshaw ORD - Old Rotary Dude Join Date: Feb 2008 Location: Pelham, AL Posts: 319 Rep Power: 18	T, the RB mufflers are the best for the rotary IMO. I have been using them for years with fair success in accomplishing what you are trying to do......quiet without losing too much performance. I have had to modify a few RB pre-silencers to fit in limited areas and was able to see the internals, which is as Ted mentions...perforated and offset with a bunch of curly stainless noise suppression material. You may want to also consider a heavier wall thickness if you purchase tubing...this takes out a good bit of the "metallic" sound in the rotary exhaust. On a different note, I will shoot you a PM soon about seeing if you can help me with a intake plenum design for a sidedraft Weber (DCOE). Todd B. (formerly of No Limit Industires in Alabama)