I'm looking at building a custom frame and putting a beasty 2-stroke engine in it. Something that will ideally get me in the range of 15-20 hp, while still being twist-and-go. I know I have seen this question kicked around a few times before, and that the KT100 engine has been suggested, but I just called Comet Kart Racing and they pretty thoroughly shut down the idea - I guess the KT100 engine uses a clutch that is meant for super high RPM, so it will burn out like crazy with regular riding, AND it won't work with a torque converter.
SO it's back to the drawing board for engine ideas. I'd really love something that can also utilize a CTV - ideally dual variated.
I was thinking at one point of doing an AV10 engine (and MAYBE figuring out how to dual-variate it), but would love something that can generate even more horsepower. I'd also love to keep the budget SOMEWHAT low - under $800 for the engine / ignition / carb if at all possible - though that is a lower priority than just getting ideas.
Thanks all! I know it's an off-the-wall question, but I feel like somebody has to have done this before - the key challenge at this point has been finding an engine that doesn't already have a transmission (so I can make it CTV).