Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Intermediate muffler/resonator replacement on an 87s4

Thread Tools
 
Search this Thread
 
Old 01-22-2007, 11:28 PM
  #1  
Tony
Addict
Lifetime Rennlist
Member
Thread Starter
 
Tony's Avatar
 
Join Date: May 2001
Location: Las Vegas
Posts: 14,676
Received 584 Likes on 305 Posts
Default Intermediate muffler/resonator replacement on an 87s4

Im just bolting my exhaust back up after smogging the car and have now discovered that my driver side resonator/muffler rattles internally when i shake it.

Im currently running a Motorsport Xpipe, stock S4 resonators and a RMB. Im tossing around the idea of getting some mufflers welded in where the current resontaors are...leaving the RMB and the X pipe as is.

Anyone done this or can recomend a size, model and part number for replacement.

Thanks
Old 01-22-2007, 11:38 PM
  #2  
ROG100
Basic Sponsor
Rennlist
Site Sponsor

 
ROG100's Avatar
 
Join Date: Jan 2003
Location: Double Oak, TX
Posts: 16,834
Received 894 Likes on 340 Posts
Default

Tony,
You made me feel guilty about the spoiler.
I have two S4 resonators for you cheap, however shipping may spoil it for you.
Roger
__________________

Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014

928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."






Old 01-23-2007, 12:35 PM
  #3  
fabric
Three Wheelin'
 
fabric's Avatar
 
Join Date: Nov 2004
Location: Evanston, IL, USA
Posts: 1,645
Likes: 0
Received 1 Like on 1 Post
Default

Ok, I decided I should do some research on what exacltly the differeince between a resonator and muffler is. This seemed reasonable. (?):

On the outside, a resonator looks the same as a muffler. But inside there are usually fewer baffles and restrictions. The muffler provides the primary means of sound control, so the resonator only has to clean up the noise that escapes the muffler.
This implies that the resonator is generally *after* the muffler, which is the opposite of the 928. The article specificially talked about this earlier.

This pretty much the deal? If so, what's up with the 928's design? This would explain why the GT resonators don't lend themselves well to having the rear muffler removed.

Last edited by fabric; 01-23-2007 at 02:34 PM.
Old 01-23-2007, 01:46 PM
  #4  
killav
Rennlist Member
 
killav's Avatar
 
Join Date: Apr 2006
Location: North Richland Hills, TX
Posts: 1,534
Received 7 Likes on 5 Posts
Default

fabric,

You have sparked my curiosity for an exhaust combination that I have not seen. Has anybody out there left the rear muffler in place, installed an x-pipe, and removed the resonators and replaced with a straight pipe? What would this sound like? What would the HP figures be?
Old 01-23-2007, 03:22 PM
  #5  
C.F.
Instructor
 
C.F.'s Avatar
 
Join Date: Apr 2006
Location: Across the BIG pond.The UK.
Posts: 170
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Tony

Im currently running a Motorsport Xpipe, stock S4 resonators and a RMB. Im tossing around the idea of getting some mufflers welded in where the current resontaors are...leaving the RMB and the X pipe as is.

Anyone done this or can recomend a size, model and part number for replacement.

Thanks
Tony
I think Carl may have just come to your rescue

SEE HERE



Quick Reply: Intermediate muffler/resonator replacement on an 87s4



All times are GMT -3. The time now is 03:28 AM.