[urq] Re: urq Digest, Vol 6, Issue 6

[Justin]

Yes, it is important to keep in mind that the MC and the WR/WX have
different compression ratio's....so there would need to be a modified boost
sensor or bleed valve somewhere in order for the managment conversion to
work....
Justin
----- Original Message -----
From: "Ned Ritchie" <Q at IntendedAcceleration.com>
To: "'n mko j nm'" <chapman10 at juno.com>; <urq at audifans.com>
Sent: Tuesday, April 06, 2004 11:27 PM
Subject: RE: [urq] Re: urq Digest, Vol 6, Issue 6


> The compression ratio of the MC will in SOME cases, NOT ALL, be too high
> for the MAC 02 computer to handle.  The timing of the MAC 02 is a little
> more advanced so more prone to knocking.  This especially happens when
> you use higher than stock boost.
>
> And of course the opposite will happen if you use a MC computer with the
> urQ engine.
>
> If I recall that even though the degrees before TDC for the reference
> pin is different so is the location of the sensor relative to the TDC
> point.  So this may be a moot point.  Check this out for yourselves.
>
> Ned
>
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On
> Behalf Of n mko j nm
> Sent: Tuesday, April 06, 2004 7:13 PM
> To: urq at audifans.com
> Subject: [urq] Re: urq Digest, Vol 6, Issue 6
>
> >Hi Frank,
>
>    If you're still running a MAC02, then you probably have a similar
> setup to mine, which I'm told was the quite common way to replace a
> blown
> urq motor with an MC back in the early to mid 90's. The PO had an MC
> installed in Southern Cal,after overheating the motor and the shop
> retained the MAC02 to avoid having to do the myriad wiring changes.
> Going
> that route demands that you reuse the stock urq flywheel and distributor
> as well as the original fuel system and turbo,along with reusing the
> intake and oil filter block assembly. It's not a bad trade you get the
> hydraulics, higher compression,added displacement; but lose the knock
> sensor and water cooled turbo. The PO sold me the car because he
> purchased an 84 urq that was chipped with the stock WX. According to
> him,
> mine without a chip felt quite a bit faster than his 84 did, so I'm
> inclined to think that even with a few full MC losses, if that's what
> you
> have in there you're in good shape, Drive the hell out of it. Hope this
> helped you a little. Cheers.
>
> Bill Chapman
> 83 Gobi, gotta love it
>
>
> >
> > Say.. Messing around with my urq, and leaking ECU hoses, leaking
> > fuel lines,
> > and  asorted 'mystery wiring' got me to thinking:
> >
> > How can I tell what "mystery motor" is in my urq?
> >
> > I'm thinking it's not the (original?) motor, as I think this one has
> > hydraulic lifters (The lifter noise increases, when the oil level
> > gets low).
> > Turbo is also water cooled.
> >
> > Can't read the motor number, as the 'flat area' where the numbers
> > are is too
> > heavily rusted.
> >
> > My concern is that if a MC motor made it into the car, did or did
> > not the
> > original flywheel get kept?
> >
> > It has the 'stock' ecu, but who knows what flywheel?
> >
> > If the 'wrong' flywheel is fitted, I'm assuming that the timing will
> > be off
> > by a constant offset (Equal to the offset of the 'pin'?).
> >
> > That should be easily enough figured out from checking against the
> > timing
> > information found in the IST or Bently Manuals, right?
> >
> > Does the above make sense, or am I way out to lunch?
> >
> > Regards,
> >
> >  -Frank de Kat-
>
> ________________________________________________________________
> The best thing to hit the Internet in years - Juno SpeedBand!
> Surf the Web up to FIVE TIMES FASTER!
> Only $14.95/ month - visit www.juno.com to sign up today!
> _______________________________________________
> Audifans urq mailing list
> Send posts to: mailto:urq at audifans.com
> Manage your list connection:
> http://www.audifans.com/mailman/listinfo/urq
> Have an urq question?  Check the Audifans Knowledgebase!
> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/UrQuattro
> Have an urq answer? ... Please help others by adding to the KB ... all
> contributions welcome!
>
>
> _______________________________________________
> Audifans urq mailing list
> Send posts to: mailto:urq at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/urq
> Have an urq question?  Check the Audifans Knowledgebase!
> http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/UrQuattro
> Have an urq answer? ... Please help others by adding to the KB ... all
contributions welcome!
>