Thread: Ignition Timing
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930turbo 930turbo is offline
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Join Date: Jul 2006
Location: Valrico Florida
Posts: 200
The timing needs to be correct at both ends. You're checking two things during this tuning exercise, the total advance and the mechanical advance - or more importantly - mechanical retard @ idle. I just had an example this past weekend. An '83 SC that would not idle down below 2k when the total advance was set to spec. The distributor was at fault. It did not return all the way to initial due to sticky internals. I only had about 18 degrees of mechanical advance instead of 23.
'77 930 turbo Garretson I/C 1 BAR spring, (2) '82 Triumph Bonneville Royal Wedding Edition
Past rides: '74 914 1.9 liter twin plugged track car, '83 928S, '87 924S, '75 911S w '78 ROW 3.0, '72 911T, '70 911T and various other insignificant domestic examples. Happiness is a grey tailpipe! Turbo's worth the wait!
Old 02-11-2009, 05:27 AM
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