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Mk3 golf clocks

Posted: 14 Mar 2014, 08:22
by sciroccotune
Hi all,

Any one ever fitted mk3 golf gauges / speedo using the electronic speed sender on the end of the t25 cable?

Cheers

Re: Mk3 golf clocks

Posted: 21 Apr 2014, 21:05
by Robsey
I was wondering this myself -

Apologies for a slight thread hijack, but just wishing to expand the query...

The Golf speedo transducer appears to be almost unobtainable so with this in mind -

Looking into fitting alternative instrument heads -
Here are some assumptions and further queries.
You'd need a method to transfer speedo information to the speedo head in a useable format. (Transducer and pulse multiplier)
The rest of the input signals for the gauges are moderately straight forward.

RJES mention a vehicle speed sensor (vss) and a callibration device - but this is for the Scooby engines.

I have seen mention of an induction sensor for the t25 cruise control stuff.
(Part number 321907344).

I was even wondering if it was worth going to a very early T4 instrument cluster.

Also just to add to the mix - the early digifiz gauges used a speedo transducer on the back of the speedo head.

And a further query (yes I've checked the wiki).
What are the differences between the numbers on the speedo dials.
That is - I have a very early van running an 805 gauge.
What scope of compatibility is there across the VW ranges?

Re: Mk3 golf clocks

Posted: 21 Apr 2014, 22:02
by bigherb
805 is the number the number of revolutions the speedo cable turns in a mile
Digifiz uses a hall speed sensor @ four pulses per revolution.

Re: Mk3 golf clocks

Posted: 21 Apr 2014, 22:46
by Robsey
Thanks BigHerb.
I was aware of the rpm per mile concept on other makes, but the fact that the T25 / T3 is driven from the wheel is a bit 'random' to my way of thinking.

Any ideas on an alternative compatible set-up.?
Googling 805 speedo only pulls up the T25.

Also -
I have looked into the Golf mk3 speedo - there seems to be 3 different types of speedo transducer, dependent upon the coupling / cable end used.

Re: Mk3 golf clocks

Posted: 22 Apr 2014, 08:50
by bigherb
With amount of faulty electronic dashes I've changed I'm for keeping it simple. Most VW dashes from the mid nineties are Canbus controlled and are not suitable.
If I was to go down that route I might be thinking of the Smiths/VDO electronic speedo.