chim@ncsu.UUCP (Bill Chimiak) (05/29/84)
I have a 1971 240Z which has a standard ignition. I am not satisfied with the spark output and would like to upgrade this system to an electronic ignition. Because the tachometer is in series with the high tension coil, I am reluctant to use an optical system ( I tried that once with very poor results). Other systems are the 1) Magnetic Induction systems 2) Standard capacitive discharge 3) MSD which is a capacitive discharge system which distributes additional sparks during the expansion phase of the cycle (they claim the additional sparks, 25 degrees worth, causes more complete combustion and increases power - this claim I have trouble believing). Has anyone had any experience with any of these systems and does anyone have any recommendations. Bill Chimiak
hakanson@orstcs.UUCP (06/08/84)
I'm not sure how well they live up to their claims, but I do know that
(according to a couple of people I've talked to) many drag racers use
the MSD ("Multi-Spark Device" ??). My limited experience has been with
helping out in the pits at a boat race, where the typical setup was a
flat-bottomed boat with a Chevrolet 454 c.i. V8. Apparently the MSD lets
them get by with less-than-perfect ignition systems, and thus allows them
to run at 10K+ RPM without missing. The MSD works *with* a normal ignition
system -- it uses the breaker points if you have them, and it can be hooked
up to a lot of stock electronic ignition systems as well.
Marion Hakanson CSnet: hakanson@oregon-state
UUCP : {hp-pcd,tektronix}!orstcs!hakanson