View Single Post
RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
RarlyL8's Avatar
Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,612
I don't wish to muddy the waters as header theory can take up a lot of bandwidth. So here's a picture.

321 stainless, equal medium length primaries and secondaries, merge collectors, twin waste gates, divided plenum. 1.63" pimaries with 2" secondaries to preserve velocity. T4 turbo flange for a big twin scroll turbo. O2 bung for each bank. This is NOT for a stock engine. Stock engine would use 1.5" primaries and a T3 flange.

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 03-20-2014, 09:45 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #18 (permalink)