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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,356
T3 vs T4 Flange

We just finished a custom T4 setup and I set it next to a standard T3 to emphasize the difference. Both of these flanges shown are split plenum. You can see how much larger the T4 is and how sizing will affect velocity and flow. You need a pretty high output engine to properly utilize the T4 flange.

This is the T4 system. Fully split system with a waste gate for each bank and 1.625" primaries will support big power.

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 11-01-2010, 05:35 PM
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