RCU Forums - View Single Post - Any way to quiet the exhaust on a nitro engine?
Old 06-22-2010, 03:44 PM
  #16  
proanti1
Senior Member
My Feedback: (2)
 
proanti1's Avatar
 
Join Date: Dec 2004
Location: Boerne, TX
Posts: 4,299
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Any way to quiet the exhaust on a nitro engine?


ORIGINAL: TTMT

So glad to find this thread. I drive an XTM truggy and an MGT 8.0. Both are very noisy, particularly the MGT. What about stuffing the exhaust pipe with fiberglass? That's what they use in certain full scale mufflers (e.g., Cherry Bomb glass packs). Is the power loss drastic or just slight? Seems like fiberglass would be safest because it wouldn't rust and wouldn't react with the aluminum pipe. Doesn't the galvanic reaction between steel and aluminum and copper and aluminum pose a problem long-term?
RC car mufflers are designed quite differently than car mufflers. Dry gasses pass through a car muffler, so there is nothing to soak into the fiberglass. An rc car engine passes oil through the exhaust, enough oil to soak into fiberglass and make a mess.