View Single Post
  #9 (permalink)  
Old 12-12-2009, 04:11 PM
Dwight's Avatar
Dwight Dwight is offline
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile side pipes

I have a 302 stroked to 354 c.i. I have 1 5/8 equal length headers, 4 into one with 3" i.d. Classic Chamber side pipes. I'm making 402 rear wheel hp and 416 tq.
They told me 2 1/2" side pipe mufflers for up to 450 hp and for over 450 hp use 3" mufflers.
I think you have to consider the header size and the side pipe size. Total length is part of the equation also.

Dwight
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote