Copper or Platinum plugs for use w/MSD?
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Copper or Platinum plugs for use w/MSD?
Right now I'm trying to decide between changing my plugs to NGK Coppers or sticking with the Bosch Platinum +4's that I have in the R now. I heard platinum plugs are better for high RPM spark, is that true, and that copper plugs help throttle response, is that true? TIA
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From: Extraordinary Machine
Re: Copper or Platinum plugs for use w/MSD? (www.s4-mtm.com)
MSD ignition heats up everything - platinum plugs run hot w/o upgraded ignition, therefore go NGK, go copper. I know, I am running an MSD ignition, BTW - I likes!
As for Bosch's Platinums increasing poines at high RPM's, it's dyno'd proven, but only 1 hp or less. So who really cares, plus honda's need low-end power anyway, stay NGK...
As for Bosch's Platinums increasing poines at high RPM's, it's dyno'd proven, but only 1 hp or less. So who really cares, plus honda's need low-end power anyway, stay NGK...
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