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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,527
If you look at the design of the waste gate attachment point to the exhaust system you will see the problem. On the stock 930 heat exchangers the W/G split is up steam of the turbo and branches off with a nice y joint. On the B&B headers the W/G attachment point is a T bend right at the base of the turbo mount.
It is always a good idea to check the A/F ratios and verify the pressure level when making a change in boost settings anyway so just stick your 1.0bar spring in and check everything, you may be just fine.
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 10-19-2007, 05:57 AM
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