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GaryR's Avatar
Join Date: Mar 2005
Location: Valencia, Spain
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Thanks Steven. Does the MSD use all six of the wires in the CDI harness? How is the "Soft-RPM limiter" set? Did you make up a CDI->MSD wiring diagram by chance?

930-gt40r says he is the "master of MSD" and is about 30 minutes away and cheap to feed, maybe we can have an MSD party!
Gary R.
Old 04-09-2007, 04:02 PM
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930gt-40r's Avatar
Join Date: Jan 2007
Location: Boca Raton, FL
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Gary, the MSD only uses two prongs out of the cdi harness (one wire). The green wire that comes off of the distributer is what I could best describe as a coax cable which is a wire inside of a wire. This is used to stimulate the magnetic pickup of the MSD box. Actually it could use its power wires from it as well, but distributer wire is the important one (as I usually take power, ground and ignition from other sources to make diagnosis easier). On the track cars that I did the conversion on in the past, I just hacked the plug off and terminated the wires, on your aplication I would either use insulated spade terminals to go into the plug or tap into the wires for the sake of keeping the car reversable if you choose. The soft touch rev-limiter works by cutting every other ignition cycle instead of just cutting ignition totally to lower RPM. It works like a normal ignition cut rev limiter with less of the violence.
Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette

Last edited by 930gt-40r; 04-09-2007 at 04:26 PM..
Old 04-09-2007, 04:21 PM
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