Tachometer wire routing and location
Thread Starter
8th Gear
Joined: Aug 2025
Posts: 8
Likes: 0
From: Kaneohe Bay, Hawaii
Tachometer wire routing and location
I have an 81, I put in MSD ignition box, coil, and distributor. Where do I put the gray wire to read my RPM on the factory tachometer? I don't necessarily need it. It would be nice to have because anything worth doing is worth doing right. Any advice would be appreciated, thank you for your time.
Race Director
Joined: May 2006
Posts: 18,710
Likes: 2,574
I have an 81, I put in MSD ignition box, coil, and distributor. Where do I put the gray wire to read my RPM on the factory tachometer? I don't necessarily need it. It would be nice to have because anything worth doing is worth doing right. Any advice would be appreciated, thank you for your time.
Thread Starter
8th Gear
Joined: Aug 2025
Posts: 8
Likes: 0
From: Kaneohe Bay, Hawaii
I bought the car used and it had that distributor, as far as I know it doesn't have a capacitor. I'm doing my own research I need to know how to find the tachometer wire that goes directly from the RPM gauge. So it's directly connected. I feel as though this would be the best way.
Racer
Joined: Sep 2015
Posts: 277
Likes: 59
From: Haymarket, Virginia
I bought the car used and it had that distributor, as far as I know it doesn't have a capacitor. I'm doing my own research I need to know how to find the tachometer wire that goes directly from the RPM gauge. So it's directly connected. I feel as though this would be the best way.
I just had a similar issue. I have an older MSD 6AL which has a round slot on the far side which you can put a female spade connector on. This is the Tach out on the older MSDs, the newer ones have the grey wire. Hope it helps.
V/r,
Karp
(formally from Kaena Point Satellite Tracking Station)
The connector on right in pic is tach out.
Race Director
Joined: May 2006
Posts: 18,710
Likes: 2,574
I bought the car used and it had that distributor, as far as I know it doesn't have a capacitor. I'm doing my own research I need to know how to find the tachometer wire that goes directly from the RPM gauge. So it's directly connected. I feel as though this would be the best way.
