I've recently done it to an 84 Westy- pretty straightforward conversion by
keeping all of the 1.9l injecton an air stuff and putting it on the 2.1l
block.  My conversion ended up being complicated by a head that needed a
rebuild, but it still was worthwhile to me.  I had to have a shop finish up
all of the connections when I frantically moved to Hawaii, so I haven't
driven it yet but I have reports of it running strong and fine.  my $.02...
Good luck!

>    Hello folks,   I remember a while back there was some info posted
>about converting >from a  1.9L to the 2.1L wasserboxer. Does any one
>remember that? Is there some info on the net about the  conversion? Any
>help or comments would be greatly appreciated!I am about to  change the
>blown 1.9L( rod through the case) in my Single-Cab transporter to a
>recently acquired 2.1L.   thanks Glen

             Imua Camper Company, Hawaii,  http://www.imua-tour.com
         Volkswagen Westfalia camper rentals in the Hawaiian Islands
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