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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,551
Brett - no offense was taken.
EFI is very popular and well understood by the tuners. CIS is old technology and not many are willing to tinker with it. What I have found, both through my own experiences and by working with many others, is that CIS is much more tunable than most are aware. The combination of CIS tuning and ignition tuning can dramatically increase power and fuel mileage while reducing lag. You can honestly tune CIS and the stock ignition to produce a perfect A/F ratio throughout the rpm range to redline. Bear in mind that these components are no longer stock when you get finished. The WUR and dizzy are both modified.

These modifications are beyond the information being requested by the poster. Bob simply needs to tune what he has with the help of an LM-1. He will then see where the shortcomings of the stock system are and decide if it is good enough for his application.
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 02-28-2007, 01:32 PM
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