Tach and Speedo Questions

[Huw Powell]

> Two simple questions:
>
> 1) How many pulses per revolution does the tachometer recieve in our 5cyl
> applications?

For the cars with good old fashioned single coil electronic ignition, it
should be 2 1/2.  The tach is connected to the coil.  (as is the fuel
pump relay and a few other things)  The coil fires 5 times in 2 revs, of
course.

> 2) How many pulses per Kilometer does the speedo recieve?

Nooo clue.  sorry.  I never counted them...

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/