Crazy Idea, but why not?
 

Howdy,

I own an 06 Audi TT and am thinking of getting another one(hopefully one in good shape with a bad engine) Since I may be investing in a Biodiesel Plant, I thought it would be an interesting project.
Does anyone know which VW TDI engine would match up the best to an Audi TT as far as transmission and other connections and any help would be appreciated.

Eric