We installed a tach tonight in my car. Hooked it directly to the MSD box. Zero's out when you turn the key and suprisingly it's pretty spot on w/the tach in the dash. HOWEVER, I had an issue tonight and wanted to bounce it off a couple of ya. Little history first.
Tach supposedly came out of Kenny Schraders race car when he drove for Hendrick (circa '88)
Have a separate shift light hooked up and it comes on when supposed to.
Now, on the way home tonight I stayed in the gas just to see what would happen. I have the 6400 chip in the MSD box. Looking at the tach I stayed in it and when I started to hit fuel cut off of stock Ford the tach was nowhere near 6250. Wanna say it was like 52-5500. I'll have a passenger ride w/me just to see if Im right. Ideas?:
Tach supposedly came out of Kenny Schraders race car when he drove for Hendrick (circa '88)
Have a separate shift light hooked up and it comes on when supposed to.
Now, on the way home tonight I stayed in the gas just to see what would happen. I have the 6400 chip in the MSD box. Looking at the tach I stayed in it and when I started to hit fuel cut off of stock Ford the tach was nowhere near 6250. Wanna say it was like 52-5500. I'll have a passenger ride w/me just to see if Im right. Ideas?: