Thread: Roush 427r only made 400whp :(
View Single Post
  #42 (permalink)  
Old 05-06-2015, 03:48 AM
NZCOBRA NZCOBRA is offline
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2003
Location: NZ ., nz
Cobra Make, Engine: Berry Cobra ,Tremec 5 spd . 408 windsor , double A arm 9"rear
Posts: 46
Not Ranked     
Default Exhaust
I had my car on the dyno the other day , Hub dyno 408w and only got 420 at the wheels , with a dip in the torque curve , I thought it might be the mufflers , so we removed the center core (spirals) and picked up 62hp !. Cheers .
Reply With Quote