Given I've never seen any real dyno sheets and based off a 131 Sudam being rated at 50, I'd say a real number for the Sudam would be 40-43 and the stock 250 with out trany at a real 55-58, same for a stock 450, torque would be higher on the 450. The Jawa being 500cc my guess would be a real 60=63 HP The Wankle stock 40 ish. Brc dyno sheet have been listed 45-50. I've heard of all kinds of bragging and big numbers but those guys never actually produce any data so I'm calling bs on those numbers.
Steve you've done dyno runs with yours but why have you never given any actually data? Are you just stirring the pot a little? These kinds of posts don't really do any thing except ask for trouble. It would be nice if facts were layed out so racers could study proven documented facts. Youll notice threads on the 2 cycle section where the guys engage in reality, science, engineering, and most of all sharing of knowledge.
I may not have my facts straight, but is a jawa not a 2 valve and the 450's are four or five, and both are overhead cam. Why would a 450 not have more power potential than a jawa if both are running the same fuel and have the same amount of cubic inch? It is easy to buy a big bore kit and stoker crank kit for the 450's but it seems like everyone's opinion is that the jawa is a superior engine to start with. What am I missing? Does the jawa weigh less?