[urq] MC-2 Conversion Update

[Ben Swann]

Steve,

I just sent you an abbreviated version if the wiring file.  LMK if you got it alright.
I need to puyt all this on website, but havn't had time.

If you are not using the WX intake, grind the boss behind the Throttle flat and drill
and tap holes for the sensor - this will duplicate the same way the urq has the sensor
mounted.  I recommend using the WX intake as it will facilitate plumbing the intercooler
better and fits EFI fuel rail better.

I think you will do better with the later oil cooler as it is less convoluted and fits
better - just need to find the right fittings.  I'm still working on that myself and
currently have a bypass in place.

Here is a link to intake diagram with regulator mod:
http://www.gtquattro.com/files/Vacuum5kt.jpg

All for now - difficult typing with large bandage on index finger.:0

Ben

[Date: Thu, 11 Oct 2007 10:57:59 -0700 (PDT)
From: urq <urq at pacbell.net>
Subject: [urq]  MC-2 Conversion Update
To: urq at audifans.com
Message-ID: <303052.76013.qm at web82804.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

Hopefully DA222 has the engine out ... so we know what got screwed up with the clutch
... I'll check by later today.  I have a line on a flywheel in Ohio, still hoping to
find something local.  

I think I've got the wiring interconnections to make the engine run figured out ...
there are only a handful of connections that need to be made ... and that will even make
the ISV functional.  

I have the fuel distributor plate from the MC bolted on to the WX airbox cover.  The
igloo fits right over the MC-2's airflow sensor funnel just fine.  I haven't spent much
time figuring out the fuel plumbing, but since the fuel distributor seems to have the
same fittings in the same locations, worst case I can swap the WX lines onto the MC FD.


Since I'm using the MC's intake manifold and the urq intercooler I'll need to find a
place to attach the intake air temp sensor.  Anyone have any recommendations?  I have an
intercooler that came from an urS6 which looks similar in size to the WX ... and it
appears to have a port for the temp sensor.  I think I'll take it along just to try it
out.  

I'm having secong thoughts on the oil cooler.  The MC has different attachments, so I'm
thinking it might be better to try to mount the MC cooler in the WX location.  Any BTDT
on whether or not it makes sense to try to mix and match?

Probably the biggest outstanding item is the intake plumbing.  What will I use to
connect the outlet of the intercooler to the throttle body?  How am I going to plumb all
the vacuum lines for all the functions that need them ... ISV, WGFV, Crankacse Vent,
vapor recovery, etc?  I found a drawing in the 200 manual and one in the IST and will
see what I can noodle from them.  Here again the goal is to make it look like the
drawing on the hood ... 

Steve B
San Jose, CA (USA)]