Re: MSD or other?

Posted by buickanddeere on August 09, 2007 at 09:23:19 from (216.183.155.64):

In Reply to: MSD or other? posted by bm3501466 on August 08, 2007 at 18:18:00:

If you want to really do it right and eliminate spark scatter. That's timing variations. Caused by gear lash, bushing play and shaft windup/wind down caused by each cylinder firing.
There is a reason why auto manufactures read the engine position from crank sensors. And gone away from using distributers altogether.
Use an inductive pickup on the flywheel and and electronic unit controlling advance.
MSD fires the plug extra times at low rpms. This gives another chance for ignition should the mixture be plenty lean or rich. or if the plugs are loaded up from idling too rich & cold.
MSD can reduce the tendency of detonation/knock. Sometimes the same power can still be obtained with an MSD and a couple or a few degrees less advance.

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