I want a motor like this.

I've played with 2-strokes and 4-strokes for close to 50 years. Dirt bikes, street bikes, sleds, and cars. Separate case reeds for each cylinder, direct injection, power valves to control exhaust port heights to get back some bottom end power from a wild upper end output, and an unlimited budget. Two stroke torque (except for diesels) has never been much to write home about, but the RPM's make up for it.

I'd stay with a built 4-stroke with NOS and settle for 1500 HP. How to hook up that power is a whole other challenge. I like my 2.3L (140 cubic inches) Saab Viggen with a mild stage 1 tune that puts 280 WHP out on a dyno and is electronically limited to 155 MPH. But, build that monster anyway. If you have big bucks, patience, and plenty of time.

Grass Drags (sleds) this weekend in Fremont NH if you want to see some wild 2-stroke (and 4-stroke) action. Open Mod classes run 125 MPH in 500 feet! Sled season is here!
http://www.bing.com/videos/search?q...&mid=2D9F51B83995C8EC721C2D9F51B83995C8EC721C