View Single Post
pwd72s pwd72s is online now
Registered
 
pwd72s's Avatar
 
Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,879
Quote:
Originally posted by randywebb
" I'd have sworn you had NO muffler."

Awwwww... it's a car of moderation. Why won't anybody believe me when I say that?



Folks - I hate to tell you this - but people who have dynoed a lot of mufflers, including Steve W., Bruce A., and a machinist/engine builder for a NW race team -- all say no extra hp with dual outs -- UNLESS by dual outs you mean a sport muffler.
Aye, that's the rub...especially in the pre smog era 911's. All the easy performance gains like exhaust changes had already been done...at the factory. As they came off the line, these cars had already been "hot rodded". This applied to intake as well...
__________________
"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent."
-Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.)
Old 10-10-2006, 12:10 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)