View Single Post
RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
RarlyL8's Avatar
Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,563
Ron, one of the side effects of my free flowing mufflers is cackle on decel. This is exaggerated in the Hooligan (no sound deadening material) muffler. Some folks don't like the cackle so I put the decel valve back on my car to see what the reduction would be. It was reduced significantly. I also have it on while testing my new intercooler for all the possible vac/boost related connections.

Keith, my LM-1 is still very noisy so I have no exact data. I am still working out what I think are grounding issues. If I smooth the curves enough to get usable info the spikes are smoothed as well.
RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 04-11-2010, 06:22 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #18 (permalink)