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RE: MC conversion questions (4KQ)
Ok, I'll chime in. Just did this. (Gary, car is running, just so you
know. :-)
In the USA, the ur'q and all pre MC motors had it in the intake
Manifold. The ur-q (wx) had it mounted just behind TB and on top of
manifold. KH Intake was just behind TB and on the passenger side of
IM. Not sure about MC manifold but the KH has a flat spot where the
ur-q's Temp sensor is located. So it would be very easy to mount a second
sensor there for some reason. Not sure if MC has this flat spot.
BTW, KH/ur-q have the round TB where the MC has the Oval Egg
shaped one. THey dont appear to be swappable. Advantage to the MC unit
is the air shroud vacuum line from the head between Injectors 2&3 just
dumps right into the IM on the side, and the ISV takes its air for the
side part right form IM as well. On the KH motor, air for ISV is taken
form a port on IC (more plumbing and more work for a custom IC) and the
hose from the head has to get plumbed into the vacuum system
somewhere. Usually part of that hose that goes to ISV I believe. On UR-q
the ISV (well, whatever the ur-q uses in place of one) hose comes from the
special IC -> TB hose that it has.
Not sure if I cleared any thing up. BUt I had all three intakes
to choose from for my KH turbo conversion. So I got real familiar with
each one. Righ now I'm using KH but I may end up switching to the MC unit
depending on what I do for an IC and stuff.
BTW...KH intake uses a vastly different throttle linkage. The MC
and UR-q linkage is the same but different size stud in the middle. Not
swappable. ur-q linkage can be put on KH TB and vice versa. But MC has a
larger stud.
l8r
>Phil Payne Wrote......
> .... AFAIK unless you've got an ur-q the intake temp sender is mounted
>inside the intercooler ... do you run without it?
>Gary Erikson Wrote
>"Buchholz, Steven" wrote:
> ... AFAIK unless you've got an ur-q the intake temp sender is mounted
>inside the intercooler ... do you run without it?
I don't recall how Pat had dealt with the intake temp sensor on his car,
but when I did the conversion on my GT, I drilled a hole and mounted it
in the intake manifold similar to the ur-q.
IMO, that's the best place to be monitoring the temperature of that air
anyways. With the intake manifold sitting directly above the exhaust
manifold, turbo and downpipe, the air temp can rise again after leaving
the intercooler.
Just my $0.02,
Todd Phenneger
1983 ur-q / black / getting a MC
1984 4000 Turbo quattro (Faster than your average 4kq)
1987 4000 quattro / Saphire Metallic Blue/ Girlfriend's
1996 A6q / Volcano / Dads Car
*****1985 5kt / PARTING OUT!
* http://www.uidaho.edu/~phen9461/motorsports.htm