Hey guys we have had alot of threads lately regarding bad cdis and what not. Until TTP picked up another option Pro Com was our only choice for an aftermarket replacement. I know a few guys think that lower voltage affects the Pro Com negatively and I tossed out the idea of it being idle speed. Well I went and bought a multimeter and decided to check a few things out. Bear in mind that I replaced my cdi with a Pro Com last October. With my idle set at 1150 rpms I am getting 14.6 volts across the battery terminals, when I back it down to 1050 rpms I am getting 13.4 volts across the terminals, and at 1000 rpms I am getting 12.5 to 12.4 volts across the
terminals. Now my Speedmaster is a 2003 with nearly 50,000 miles on it. So it seems that the idle speed affects how many volts are being put out. Now whether or not this is due to our less than stellar rectifiers or something else is beyond me. Just wanted to share my observations with you guys.
2006 865 Neon Blue/Jet Black Speedmaster,790cams, TTP Stage 2 Firestarter, Epco Exhaust with 10.25" Samson Vrod baffles, UNI pods with 40 pilots, 150 mains,Thruxton needles, 3 turns out.
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