Topic: Tach wiring question

[Tim175]

I bought this new summit racing 4 in 1 tach for my car today and I'm trying to figure out what gauge of wire I need to run from the tach to the sending units. The wire from the tach is 18 gauge, what should I connect to the 18 gauge to the sending units?

[66GTKFB]

Offhand, I would say - 18ga. Ford used 20ga on gauge circuits, but why tempt fate. I suggest stranded because it crimps (don't use vice grips) whereas sold wire doesn't. I also suggest the same colors as Summit used. Try Home Depot or Orchard Supply.
Jim

[Tim175]

Awesome, thanks for the reply. I'll pick some up tomorrow.

[Tim175]

They didn't have any 18 so i got some 16 stranded. Will that work? I don't want to use it until i know for sure haha.

[66GTKFB]

Ha ha, you're on your own.

[TexasAxMan]

Yes, 16 gauge will be fine.  The lower the number the larger the wire.  Just don't go any smaller than the wire on the tach.

[Soaring]

You can get the entire harness that is rated at 2 gauge  collectively.  So, 16 will be just fine. 

[Tim175]

I ended up finding a 40 ft roll of 18 in my automotive cabinet in the garage that was buried so i just used that. Everything seems to work just fine. Thanks for the help guys.

[Soaring]

Glad you solved the problem.