Re: MC Ur-q Conversion Questions

["Lawson, Dave" <dlawson@ball.com>]

>	WHat about for a ur-q.  Obviously it would easier as you'd already
>have the IC plumping.  OIl Cooler lines.  Bent Tie-Rod, etc.  It would
>basically bolt rigth in mechanically. 

Yup.

>	Problem is wiring.  The UR-q is kind of right in-between the 4kq
>and 5ktq in wiring.  I has the injector COoling fan in the harness I THINK
>already.  Does it have the 3-speed fan???

Can't remember, the radiator fan wiring is in the ur-q harness and can
be left alone. I haven't yet installed my injector cooling fan, I haven't
seen the need.

>	Also, it doesnt' have a Knock sensor so....I'd have to change the
>computer.  What about the Actual CIS Head Unit.  Can it stay?  Or is the
>5ktq unit different.  Is the 5kt KH motor ALSO a different Head unit?  KH
>has a knock sensor but it looks a little different than the 5ktq system.
>I'd look up some of this stuff on the EKTA I ordered from Dave in Canada
>but I STILL havent gotten it even after a months of waiting and paying
>LONG ago.   Grrrrr.

Both the computer and its associated engine wiring needs to be changed.
You are on the right track installing the red harness.

>	Anyhow, any info on this would be appreciated.  
>Reasons....I have one KH and one MC.  A 4kq and a wrecked ur-q that
>probably needs a new block.  I'm trying to decide which motor to put in
>which car.  :-)   I could put the KH into the ur-q which would give me
>better drivability with the higher compression but I may be limited in
>power.  But I still should be able to get a good 200hp at 1.9 bar right???
>But I'm wondering if I need to switch the CIS Head Unit/ Metering Plate
>on the ur-q to make these newer motors with OXS work.

I didn't consider the KH, so I am no help there. Here is the rundown
on the MC engine I installed in my ur-q.
-1989 MC engine with single knock sensor
-Installed both red and yellow harnesses
-Running custom 1.95 bar ECU with special timing maps
-Water cooled K26 turbo with 7 degree clip on turbine
-ur-q downpipe, sleeved kitty
-2.5 in cat back stainless steel Borla, no center muffler
-ur-q crankshaft pulley
-using ur-q flywheel with centerforce DF clutch
-using ur-q fuel system, including metering head, injector lines and
injectors
-red harness O2 frequency valve connector plugs into ur-q O2 FV on fuel head
-using 1985 KH? intake manifold w/o idle air bypass channel
-used MC air temp sensor, ur-q one won't work
-plugged air shroud inlet on MC head
-used MC rpm/index mark sensors with custom machined mounting block
-used ur-q oil cooler with custom aeroquip lines.
-Installed special led/momentary switch to download ECU trouble codes
-used ur-q oil pan with modified MC oil baffle
-haven't installed injector cooling fan
-haven't installed aux turbo cooling pump
-other misc. details I can't remember at the moment

W/o the extra cooling pumps, less than 10 wires need to be interfaced
to the stock ur-q wiring.

HTH
-
Dave Lawson
83 ur-quattro
90 200 TQ Avant