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MSD IGN. AND CHALLENGER RALLYE DASH TACH #789613 08/31/10 09:46 PM 08/31/10 09:46 PM
Joined: Feb 2006 Posts: 652 Florida D Dennispsalm91 OP mopar
Dennispsalm91 OP mopar D Joined: Feb 2006 Posts: 652 Florida	Swaped out the stock ignition for msd. Following the msd instructions, now my tach from my rallye dash doesnt work. Anyone had this problem ? Any help would be appreciated

Re: MSD IGN. AND CHALLENGER RALLYE DASH TACH [Re: Dennispsalm91] #789614 08/31/10 09:52 PM 08/31/10 09:52 PM
Joined: Aug 2003 Posts: 4,481 Mesa, AZ P Pat_Whalen super gas
Pat_Whalen super gas P Joined: Aug 2003 Posts: 4,481 Mesa, AZ	Is it a 6a? I just installed one this weekend and used the tach output terminal on the back of the box and my tach worked fine. Potentially different technology than your stock dash tach though, but I was able to use my aftermarket (autometer) tach and also my Craftsman Tach/Dwell/Volt meter also to see RPMs.

Re: MSD IGN. AND CHALLENGER RALLYE DASH TACH [Re: Pat_Whalen] #789615 08/31/10 10:53 PM 08/31/10 10:53 PM
Joined: Feb 2006 Posts: 652 Florida D Dennispsalm91 OP mopar
Dennispsalm91 OP mopar D Joined: Feb 2006 Posts: 652 Florida	Yes is a 6 a box. the wire that goes to the tack neg is there. Im wondering about the plug in from stock distributor to the plug in on the wire harness, which is unpluged now has something to do with it not working

Re: MSD IGN. AND CHALLENGER RALLYE DASH TACH [Re: Dennispsalm91] #789616 08/31/10 11:13 PM 08/31/10 11:13 PM
Joined: Mar 2009 Posts: 2,467 Sydney,Australia tex013 top fuel
tex013 top fuel Joined: Mar 2009 Posts: 2,467 Sydney,Australia	msd do a signal converter,runs inline. i had to fit one to a 69 charger with tic toc tach Tex New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive

Re: MSD IGN. AND CHALLENGER RALLYE DASH TACH [Re: tex013] #789617 08/31/10 11:29 PM 08/31/10 11:29 PM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	You need the signal adaptor. MSD sells several. Summit lists the different types and applications. My 70 Rally tach needed one of the basic lower priced adaptors. Wired per instructions and the tach works.

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