View Single Post
Old 11-25-2015, 06:06 PM   #46 (permalink)
iveyjh
EcoModding Apprentice
 
iveyjh's Avatar
 
Join Date: Apr 2011
Location: Canyon Lake, Texas
Posts: 222

none - '98 Honda Civic HX

none - '00 Chevy (Geo) Metro base

none - '00 Saturn SL1 base
Thanks: 126
Thanked 77 Times in 50 Posts
Quote:
Originally Posted by Old Tele man View Post
The best/conservative approach would be to 'tune' the headers to coincide with the engine's torque peak...ie: striving to improve it's existing torque output rather than shift or move the torque peak, which would be about 62" length header pipes before the collector.

However, *IF* you use Freebeards idea and put a small motorcycle muffler on each pipe, the 'total' length (valve to atmosphere) would now INCLUDE the muffler length, since it's now all one-continuous length (no joining of gas flows from other cylinders).
torque peak = 3300rpm or 65mph in 5th gear
  Reply With Quote