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Tach signal / knock sensor power increase?
It's pretty well documented in the A2 Bentley wiring diagrams... :)
Most knock sensor swap sites document this change - all it does is switch
from the VW ignition map to the more agressive Audi map contained in the
box.
Drew
On Wed, 2 Apr 2003, Ryan H wrote:
> Brian, you sure of this? KNow anywhere I can find the source of this info?
>
> >
> > From: "Brian Honnold" <bhonnold@pac-cap.com>
> > Date: 2003/04/02 Wed PM 12:43:03 EST
> > To: <scirocco-l@scirocco.org>
> > Subject: RE: Tach signal / knock sensor power increase?
> >
> > That trick only applies to the early systems on 1985 RD motors.
> >
> > > -----Original Message-----
> > > From: scirocco-l-admin@scirocco.org
> > > [mailto:scirocco-l-admin@scirocco.org] On Behalf Of Joe Doty
> > > Sent: Wednesday, April 02, 2003 9:16 AM
> > > To: Ryan H; scirocco-l@scirocco.org
> > > Subject: RE: Tach signal / knock sensor power increase?
> > >
> > >
> > > Is this what you're talking about? This is something I saved
> > > from somewhere a while back:
> > >
> > > > The computer for the knock control has two ignition maps
> > > you can use,
> > > > Europeon (Hot) and North American (Cold). The base timing on a big
> > > > valve head, 1985 and up is 6 deg btdc and with the knock sensor and
> > > > Euro ignition map you can push your timing to 12 - 15 btdc.
> > > With these
> > > > two changes you get about 5 - 10 hp gain and when you use super
> > > > unleaded you can feel the difference. (you can also change
> > > to a Euro
> > > > ignition map in any CIS-E powered motor by cutting the
> > > jumper from pin
> > > > 3 to pin 11 on the knock sensor control unit and don't forget to
> > > > advance the ignition) This is such an easy conversion, I would
> > > > encourage everybody to do it.
> > >
> > > Joe Doty
> > > IT/Development
> > > joe@lcnetwork.com
> > >
> > > > humm i though the TAch signal (rpm) was the pin 7 of the TZH box not
> > > the
> > > > knock box.
> > > >
> > > > ATS - Patrick Bureau - txrocco@sbcglobal.net
> > > >
> > > >
> > > > =>-----Original Message-----
> > > > =>From: scirocco-l-admin@scirocco.org
> > > > =>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Ryan H
> > > > =>Sent: Tuesday, April 01, 2003 11:20 PM
> > > > =>To: scirocco-l@scirocco.org
> > > > =>Subject: Tach signal / knock sensor power increase?
> > > > =>
> > > > =>
> > > > =>OK guys, can someone tell me what wire to/from the knock box
> > > > =>(16V) is the tach signal? And also, look at this pic.... in the
> > > > =>bottom right it says something about increasing power by
> > > > =>unconnecting two grounds... um, anyone try this? Where are they
> > > > =>connected together? At the harness connection?
> > > >
> > > =>http://home.mindspring.com/~tberk/_uimages/Knock-Sensor-Diagram.JPG
> > > > =>
> > > > =>
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> > > >
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