mallory 685 to activate shift light

ron b · 03-22-2013, 02:42 PM

i want to add a shift light to my 428 cj mustang. is anyone using there mallory 685 box to activate there shift light? thanks ron b

Kegracing · 03-22-2013, 07:17 PM

I did at one time. Worked fine. I used the "rpm switch output". Light would come on, I would shift, then rpm's dropped below the shift point. Light just stayed on at finish line.
Changed to a tach with multiple shift points.

03-22-2013, 02:42 PM	#1
ron b Member Join Date: Mar 2008 Posts: 134 Likes: 0 Liked 4 Times in 4 Posts	mallory 685 to activate shift light i want to add a shift light to my 428 cj mustang. is anyone using there mallory 685 box to activate there shift light? thanks ron b

03-22-2013, 07:17 PM	#2
Kegracing Member Join Date: Jun 2002 Location: Red Oak, TX Posts: 441 Likes: 0 Liked 0 Times in 0 Posts	Re: mallory 685 to activate shift light I did at one time. Worked fine. I used the "rpm switch output". Light would come on, I would shift, then rpm's dropped below the shift point. Light just stayed on at finish line. Changed to a tach with multiple shift points.