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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
Adjusting Values:
Europe. R.o.W.
29 before TDC at 4000 rpm
Mark, you may see in the notes I sent you that I lock my distributor, which is the same as yours, down at 26* @4000rpm. The reason for this and not 29* is so I can safely use poor grade gasoline in the hot summer. I made the assumption that the specification of 29* in my 1978 manual was for European grade fuel available to the public in 1978. I have never had an issue with detonation and my engine is very healthy after 10 years of flogging the crap out of it.
Just follow what it sais in the manual and you will be good to go.
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 04-01-2010, 07:21 PM
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