Re: Greetings from Metro Detroit
Ludwig: in the first two years Metropolitans were equipped with an Austin 1200cc engine. The last 5 years they had a 1500cc engine, which left stock is able to generate around 55hp, according to all of the literature I have seen. The other guy was able to take that same motor and build it out to 150hp. He said one of the biggest drawbacks of the stock motor is that the cam shaft weighs approximately 30 pounds. He knows a shop that can reproduce it in billet steel for tremendous weight savings, but only at the nominal cost of around $2000!
I like your idea of just upsizing the engine itself. Lots of people have put some pretty strange stuff into a Met, including one guy locally who installed a 400 small block. That's a little too extreme for me.