Idle curiosity.....cq into S2?

[hah at srv.net]

>The definitive source on this conversion would be Brandon Hull's site.  He 
>did it with a 3B, and was kind enough to put together an excellent site 
>documenting his conversion, including parts numbers, etc. The early S2's 
>used the 3b, the later ones used the AAN.  As far as the drivetrain goes 
its 
>up to you.  Thus far Brandon has retained the 5spd gearbox of the coupe, 
and 
>originally had the 4 bolt hubs, etc.  I think he either upgraded or is in 
>the process of the 5 bolt conversion.  3B is definitely more economical, 
but 
>then again, the AAN just has more potential.  The block, etc. are the same 
>as the RS2 which I beleive was engine code ABY.  This leaves the door open 
>for RS2 Turbo, intercooler, EM, etc.  Plus the AAN is motronic.  Downside 
is 
>higher initial cost, parts scarcity, and parts prices....ex. I think just 
>the cylinder head for a AAN is around 3500.  As far as sheet metal goes 
its 
>basically a bolt on affair.  Hope this helps, and please feel free to 
>correct any errors I may have made.

One error: the 3B is Motronic as well, the main difference between 3B and 
AAN is the "programmed overboost" feature and distributorless ignition of 
the AAN (early AANs reported to have distributors). The main difference in 
the modification potential for 3B and AAN is that as boost increases to 
insane levels the distributor in the 3B is thought to possibly misfire, 
especially if it has a [wider] MC rotor.

HTH
Henry Harper
http://www.srv.net/~hah
1991 200 quattro, 111k, 3B chipped 
1988 GTI 16v, 216k, PL what's a chip?