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RarlyL8 RarlyL8 is online now
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,357
Add some cheap compression ... just leave some shims out under the barrels, man. OLD SCHOOL TURBO RULEZ!
I missed this so went back and found it, thank you.

I stand behind my previous statement about the 993SS cams and packaging your build. Of the standard grinds available the 993SS is the largest I am aware of that can be used without relief cuts in the pistons. If off-boost torque is critical then a cam must be chosen to accommodate, such as the SC grind.
For this build HP is the first priority and off-boost torque secondary. I chose the 993SS cams to hit the HP number. This thread was created to share real world experience with big power CIS engines, how they respond off-boost, and what was done to bolster that area.
I didn't get deep into specifics of the build in order to stay on topic. 400WHP is easy, we do that every day with bolt-ons and a cam change. No milestone there. This build has higher goals.
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 07-18-2016, 09:25 AM
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