Fwd: Re: 1.8T int 4kq?

Chris Dyer chrisdyer at hotmail.com
Wed May 15 21:10:14 EDT 2002

There's also a place in Santa Barbara (?) called Kennedy Engineering that
makes adaptor plates. They also specialize in motor swaps for Vanagons.

>From: Dave Alarie <dalarie at uwsa.edu>
>To: quattro at audifans.com
>    I've been looking at the issues with that swap.  I can't say I've
>uncovered any non-starters, but that doesn't mean there aren't any out
>there.  It may be simply a measure of my ignorance.  Here's hoping we
>capture the imagination of the attending guru-scenti.
>    Here's some of what I think I know about doing this particular swap.
>    The tranny question is interesting.
>    I've seen some postings indicating the bolt patterns on the 1.8T
>enginne and the 016 bell-housing do not match.  <insert correction here
>if necessary>  An adapter plate is a straight-forward and not too pricy
>solution to that however.  Though I haven't done the detail work on that
>bit, I did come across a place (in Kansas City maybe ? . . . now where
>is that link . . . ?) that specializes in just those sorts of adapter
>    Perhaps easier would be to get a used 1.8T along with a mated
>gearbox?  That would mean working out the shift linkage (doable),
>finding or adapting port and starboard frong driveshafts to accomodate
>fit any length differences (though I suspect/would bet there are stock
>VAG driveshafts that would swap in with too much hullabaloo.)   That
>leaves mating the newer tranny to the fore/aft driveshaft and that seems
>doable as well.  Also in play is a means to get the mechanically driven
>speedo in the '85 to display the speed information provided
>electronically by the 1.8T/Tranny package.
>    I've an '85 4KQ.  I believe the change in weight distribution would
>profoundly improve the plowing tendencies of that platform.  The vehicle
>weighs in at <2900lbs.  Oh yeah, there's the issue of getting more
>horsepower . . . I figure with the weight differential, and the upside
>potential on the 1.8T, one should be able to drive the hp/weight ratio
>below 1/10.  Ahhhhhh . . . .
>    How to pay for new rubber every 12 months is a problem; mostly a
>self-control problem, but a problem nonetheless.
>    Does anyone have the 1.8T weight?  How about 1.8T plus tranny?  My
>working number for the 10v5cyl is 375 to 400 lbs.  How about the 016
>    The electrics is another interesting puzzle.
>    If I go ahead, then I'm considering sarting the conversion by
>ripping out the CIS system and putting in the Motronic ECU and fuel
>distributer appropriate for big hp implementation of the 1.8T.  It would
>mean, _I think_, mapping the CIS inputs to the appropriate Motronic
>inputs and then burning Motronic eeprom code to perform appropriate fuel
>distribution to the 10V engine.
>    That also would allow me to replace the CIS fuel/air mettering
>mechanicals with a MAF plus electronic fuel distributor.  And that, _I
>think_ goes a long way to preparing the ground - the engine bay anyway -
>for installation of the 1.8T.
>    The stumbling block here, e.g., the block on which I'm _currently_
>stumbling, is the un-availability of reasonably priced software that can
>read both the CIS and Motronic systems.  Then, there's the issue of
>finding an appropriate eeprom burner, figuring out how to modify the
>Motronic chip and then getting it back on the chip and then getting the
>car to run at all.
>    I'm going to get the Bosch fuel injection technical documenation to
>help sort out the data acquisition puzzle. The CIS ecu ought to be easy
>and the Motronic less so, but it may be an interesting learning curve to
>at least chart.  Being that disposable time is more absent than
>disposable income, this bit of the operation is starting to feel like a
>service for which I'd be happy to pay someone else.  (Is that plea for
>help veiled thinly enough?)
>    There.  That ought to be good for generating some number of on-point
>responses . . . so TIA to all.
>    Cheers.
>    Dave Alarie

from chrisdyer at hotmail.com

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