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RarlyL8 RarlyL8 is online now
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,386
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To have a true divided twin scroll system each bank must be completely separated. The significance in affect this has on performance depends on all other parameters of the build such as turbo size and design. The purpose behind the design of my headers was to utilize the affect of tuned primaries to both increase lower RPM torque and to send coordinated pulse signals to each side of the twin scroll turbo which will increase mid range RPM torque and HP. The extent that this tuned flow is disturbed by a common waste gate manifold I do not know as both designs have not been tested back to back with the waste gate manifold design being the only change. I do know that both waste gate manifold designs will completely eliminate boost creep / overboost as the angles are very good and signals are taken from both banks.
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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 02-23-2012, 05:27 AM
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