[urq] Coil-On-Plug in '84 ur-q Tachometer Feed?

[Michael Hopton]

Thanks Patrick,

If you can provide more details that would be great.

The instrument cluster is from a Swiss 20v ur-q with
the proper 7,000 rpm red line. It's the dog's bollocks
of analog ur-q instrument clusters.

cheers, Mike 

-----Original Message-----
From: Patrick Carlier [mailto:p.carlier at pandora.be] 
Sent: Thursday, July 05, 2007 5:54 PM
To: Michael Hopton; urq at audifans.com
Subject: Re: [urq] Coil-On-Plug in '84 ur-q Tachometer Feed?

A friend of mine did this . Hes' got an ur-q RS4 .

The AAN ecu has a tach out wire , only its' signal is far to weak to
drive the analog gauge .
IIRC there's a resistor and a diode to be removed in the tach , and
another resistor has to be replaced with a different value , and then
the ecu tach signal can drive the gauge directly .
I'll contact him and try to obtain some more detailled information .

Btw , have you ever considered putting in a six speed gearbox with the
3B .
It's not an easy conversion , but it can be done .


Pat




----- Original Message -----
From: "Brandon Rogers" <brogers at terrix.com>
To: "'Michael Hopton'" <Michael at siliconoptix.com>; <urq at audifans.com>
Sent: Thursday, July 05, 2007 8:01 PM
Subject: Re: [urq] Coil-On-Plug in '84 ur-q Tachometer Feed?


> Any particular reason you don't want to stick with the mechanical feed

> from the tranny?  Or have you swapped in a Torsen?
>
> Brandon
>
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On 
> Behalf Of Michael Hopton
> Sent: Tuesday, July 03, 2007 2:50 PM
> To: urq at audifans.com
> Subject: [urq] Coil-On-Plug in '84 ur-q Tachometer Feed?
>
>
> I am finally motivated to complete the coil-on-plug engine conversion 
> in my '84 ur-q. I had a 3B setup working perfectly but for some 
> depraved reason decided to convert it to coil-on-plug. During the 
> conversion an
> RS2 turbo, exhaust cam, MAF
> injectors and 944 turbo intercooler were added. So it is finally 
> coming together.
>
> Any ideas on how I get an RPM signal for my '84 ur-q analog tachometer

> from an AAN coil-on-plug engine/wiring loom? Is the tachometer signal 
> pin 40 on the ECU any good?
>
> cheers, Mike
>
>
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