tachometer question

gsxr141

Active Member
Oct 24, 2010
1,158
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38
rochester
this question is for those running a cop setup on their 7m.
how do you get the tach to work after the swap?
should i buy an msd adapter, or is there another way?
btw, i'm running subaru sti coils...... and, yes they work. lol
 

hvyman

Dang Dude! No Way Man.
Staff member
Apr 17, 2007
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0
Fullerton,CA
If your still using the stock igniter then it doesn't matter which coils. The tach signal comes from the igniter not the coils.
 

gsxr141

Active Member
Oct 24, 2010
1,158
9
38
rochester
follow up question......
will the aem tach output send a signal that the tach can use? or will i need some kind of adapter, like an msd box?