Re: 9000CS 3-inch stainless exhaust drone; suggestions? - Saab Performance Bulletin Board - Saabnet.com
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Re: 9000CS 3-inch stainless exhaust drone; suggestions?
Posted by SWEDISH DYNAMICS [Email] (more from SWEDISH DYNAMICS) on Sun, 6 May 2007 15:06:20
In Reply to: 9000CS 3-inch stainless exhaust drone; suggestions?, geoguy [Profile/Gallery]
, Sun, 6 May 2007 11:00:22
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GeoGuy,
Best regards!
3" exhaust plumbing is fairly large for any engine project under 450 BHP. On paper, a 3" system can support over 550 BHP of exhaust flow but for most engine projects under this BHP range, the exhaust flow through the plumbing is less directional. Backdraw (exhaust back-fire) and a "drone" exhaust vocal are common symptoms of an oversized exhaust system. You will need a method of resonating this exhaust flow with a resonated rear tip, or a baffle type muffler. Stainless steel exhaust systems and mufflers typically have a tendancy to change vocals over time so you might give your system a month or two to "break in" before deciding on what route to take in addressing the vocal issue.
Best of luck and regards,
GaryK at SWEDISH DYNAMICS,INC.
http://swedishdynamics.saabnet.com
Posts in this Thread:
- 9000CS 3-inch stainless exhaust drone; suggestions?, geoguy , Sun, 6 May 2007 11:00:22
- Swedish Dynamics 2.5 inch stainless exhaust, 97Aero, Thu, 10 May 2007 12:02:55
- Re: 9000CS 3-inch stainless exhaust drone; suggestions?, SWEDISH DYNAMICS, Sun, 6 May 2007 15:06:20 <-- Viewing This Message
- SS409 is the alloy (n/m), Bill Davies, Sun, 6 May 2007 14:46:27
- I have the same problem, AdamB , Sun, 6 May 2007 13:47:11
- Re: 9000CS 3-inch stainless exhaust drone; suggestions?, John '96 Aero, Sun, 6 May 2007 13:37:39
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