LocostBuilders - powered by XMB

Analogue rev counter on Duratec

laptoprob - 4/2/14 at 03:40 PM

Anyone help me here please?

Ive got a Tiger rev counter which i don't suppose is much different to other analogue rev counters. I wired it to the negative on the Duratec coil pack and its working but only reading around half of what it should be (i.e. 1k on counter, 2k on engine).

Any ideas what the problem could be?

loggyboy - 4/2/14 at 03:59 PM

Wasted spark?
Although that should double the reading not halve it!

[Edited on 4-2-14 by loggyboy]

Ben_Copeland - 4/2/14 at 03:59 PM

From memory the coil pack is split into 2 sides so your only getting signal from one side. I had to build a small circuit to allow it to be connected to both sides of the coil pack. That's a GM coil pack tho.

Ben_Copeland - 4/2/14 at 04:02 PM

http://www.turbosport.co.uk/showthread.php?t=166700

It's shown on this page

laptoprob - 4/2/14 at 04:33 PM

quote:
Originally posted by Ben_Copeland
http://www.turbosport.co.uk/showthread.php?t=166700

It's shown on this page

Thanks Ben, thats the fella i was looking for

big-vee-twin - 4/2/14 at 10:28 PM

This is what I used on mine works fine

[img]
tachometer diodes [/img]