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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,563
Keith, my statements relate to the output of a standard stock 930 engine with bolt-on modifications, I should have made that clear.
In that application specifically you are limited in total output therefore limited in how much total torque is produced. The goal as it is presented is to achieve 180WHP at 3000rpm which equates to roughly 315 ft/lb of torque. The lower the output of the engine the closer you must be to full boost (1.0bar for street 930) before you hit the target rpm. This is due to the peak torque occurring later than peak boost.
A higher output engine would not run into this dilemma.
We have seen 1.0bar at 2600rpm on a 400WHP CIS 930 which produces more than 180WHP @ 3000rpm so I know I can reproduce those results. I cannot post that dyno because it belongs to the client and they refuse to participate in internet wars.
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 05-27-2010, 01:59 PM
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