Porsche 924 rev counter help
 

Hi guys, I have a Porsche 924 rev counter that I would like to wire into a Beetle/Type 3

The one that I have is from a '77 924 and has 3 terminals at the back.

One that says +12
One that says 1
One that says - (minus)

What goes where? Can anyone help?

Thanks

A guess?

+12 is to the +ve on the ignition switch circuit
- is earth
1 Is the feed from the coil

???????

Does the unit have a separate circuit for the internal lamp?

Clive

Yes, it has two plug on connectors for the lights. I guess that you could pull current for those lights from the speedo lights.

Can anyone confirm that it is indeed the correct way of wiring up?

That is how I would wire it.
12 to key on power +
- to gnd
1 to neg side of coil or tach out of CDI box
daisy chain the lights to the speedo lights so they will be on the dimmer with the speedo.

Good stuff, thanks :)