Re: Audi 4cyl = VW 4cyl

[ti@amb.org (Ti Kan)]

GaidosIII writes:
> There has been a thread about this so I thought I'd throw my two cents in. The
> Audi 2.0l 4 cly. is an ideal bolt in for, say, my Scirocco. As I understand it
> the main difference is the distributor. If you use your standard GTi
> distributor I think there is some clearence issues to address with the
> intermediate shaft. Otherwise it's a bolt in. Nearly all the parts are
> interchangable. If I am in error someone jump on in and correct me.

The need to change distributors when transplanting the post-1988 Audi 80
2.0 engine in whole into a VW, is because the Audi has a Motronic ECU
and may use different distributor sending unit than the accepting VW.

The intermediate shaft issue is only relevant when one is swapping in
larger than stock crankshafts, there may be some modifications needed to
the intermediate shaft to increase clearence to give the crank to
swing around..

Several things that needs to be changed on the Audi 80 2.0 engine (when
transplanting to VW transverse engine orientation):

1. Exhaust and intake manifolds,
2. Oil pan and oil pump pick up.  The Audi's pan and pickup are
   optimized for logitudinal mounting and as such, is not appropriate.
   Also, the VW pan provides an extra quart of capacity.
3. The oil filter mouting flange may need to be swapped, as the Audi
   unit comes out at an angle and *might* interfere with other bits in the
   VW engine bay.
4. The top valve cover may also need swapping, because the crankcase
   ventilation hose flange might be pointed to the wrong angle.
5. Maybe the top timing belt cover too.
6. The car should have knock-sensing ignition because the Audi 2.0 engine
   has very high compression (10.5:1).

-Ti
96 A4 2.8 quattro
84 5000S 2.1 turbo
80 4000 2.0
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