Cheapest rev counter?

[mattsayle]

As per this thread:

http://www.pistonheads.com/xforums/topic.asp?h=0&a... a rev counter to a Corsa B 1.0 12V Envoy

I need a rev counter for my car. What cheap and cheeful one would you recmommend?

Thanks
Matt

[t11ner]

Hi Matt

You'd want to talk to someone like Demon Tweeks but it may be tricky to get one as your car is a 3 cylinder and most counters would be calibrated to accept a signal from a 4-pot engine (or 5/6/8/10/12 but possibly not 3!).

Old type (ie cheaper) rev counters use the spike from an ignition signal to give them a speed reference but later cars tend to use a square wave signal that the ecu produces, it might be possible to fit a set of second hand clocks with rev counter and get it going that way as the signal wire is probably already there at the back of the dash just waiting to be plugged into.

One way or another I would think that something would be available but I would agree with the comments on the other thread that most organisers would use common sense and you'd have no problems.

Are you off to Oulton for this outing?

Steve H

Edited by t11ner on Tuesday 14th July 16:29

Edited by t11ner on Tuesday 14th July 16:29

[GC8]

The easiest way will be to use the tachometer from a higher spec model thats mechanically similar to yours and to feed it from the appropriate ECU wire.

[darronwall]

use your ears!