The golf is a machine I never made mends with. (A vw rabbit diesel)
It would be a good candidate.
...
I would try one of those, with turbo..td04 brand new today is $239 delivered complete...thousands and thousands of them, thanks to modern subarus.
In fact I am putting one on my old subaru, eventually, because they are that cheap..all for 1psi of boost, let the rest blow away, to make up for a supercharger.
the golf with piggy backing, maybe a hacked extra injector...hey...you could really make something there. My only gripe aside from real cheap stuff in the body, was the lack of real air for the big bad diesel.
