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Legitimate questions here.
I thought Top Fuel engines (NHRA TF/D and TF/FC) were limited to MSD 44 amp magnetos?
From the 2020 rule book "The MSD 8771 is the only accepted unit for NHRA competition." and "Use of MSD 8771 mandatory. Only latest approved firmware permitted." For magnetos, "Maximum two magnetos limited to the following models: MSD Pro Mag Systems, 8130, 8140." Did NHRA approve any other boxes or mags? Or have the rules changed in 2021?
I suppose the reference in the prior post could be limited to Top Fuel Harley.
Do any current production vehicles use CD ignition systems? I know that one of the limitations with inductive ignition systems has always been the dwell time because of a single coil. COP and multiple coil ignition systems pretty much ended that problem, along with ECM controlled dwell maps. Did ALL of the manufacturers shy away from CD ignition systems because of cost, or are there other variables in play? Since we're Porsche specific here, when was the last Porsche CD ignition system used? Wasn't it in '89? Why did they quit using it?
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