Howdy,
I am looking into a power plant for a Zenith 701. I am very interested
in going the route of a diesel. Would anybody have any information on
either the:
Smart (Mercedes) 3 cyl. 95 hp Turbo Diesel (can be chipped up to 112
hp) found in the Smart ForFour or VW Lupo or Fox (euro) 3 cyl. 1.4
liter 70 hp Turbo Diesel (can be chipped up to 108 hp)
What I am most interested in is weight and the PSRU.
Thanks,
Bill

Sorry to rain on your parade, but...
That looks like a good way to turn on the "chip detector." :-(

It is really trivial for cars, which almost never run more than about 30% of
maximum power for extended periods. It is troublesome in trucks, and leads
to shorter engine life--but the only casualty is the owner's checkbook.
However in an airplane, I would take the manufacturer's power rating for
truck use, reduce it by another 10%, and then consider maximum cruising
power to be about 60 to 65% of that result.

I know that a lot of conversion advocates regard that as heresy, but I am
much more concerned that even I may still be too optomistic!

Peter