300lbs and 100+hp = Is it possible?

[rybo]

http://bouldermotorsports.com/showroom/F042

These bikes were over 100 HP and under 300 lbs....

[tecknojoe]

http://bouldermotorsports.com/showroom/F042

These bikes were over 100 HP and under 300 lbs....

no wonder Turpin killed it this year

[CYCLE_MONKEY]

I'm surprised this hasn't been brought up before, but, if you don't have any rules you need to follow, find something under 300lbs, and turbo it. Done. Simple.

Or, if you're more engineering minded, I remember a guy taking something like an 800cc-ish 2-stroke snowmobile engine, making a gearbox for it, and putting it in a lightweght frame. That monster was over 100hp and less than 300lbs, by good margins if I remember. Done.

Edit: I just checked, and it seems a stock KX500 puts out about 65HP. Take 2 of those barrels, make a parallel twin out of them with a new crankcase and crank, use a gearset from a 600 for the transmission, build 2 exhaust pipes, modify a lightweight chassis to fit the motor into, and you're done. Even without engine work, it's 120-130hp (probably 140-150 with), and could probably be easily under 300lbs. MotoGP bikes COULD be a lot lighter excet for the rules. Hell, an F1 car weighs what, 1,100 lbs with over 800hp????

[MattTLS]

Or, if you're more engineering minded, I remember a guy taking something like an 800cc-ish 2-stroke snowmobile engine, making a gearbox for it, and putting it in a lightweght frame. That monster was over 100hp and less than 300lbs, by good margins if I remember. Done.

Tularis

[CYCLE_MONKEY]

Tularis

Yep, that's it! EXACTLY why I want to one day build something like it, but as mentioned with the 1000cc twin KX500 motor.

http://www.youtube.com/watch?v=jQoY7ECyoN8

http://www.bikerzbay.com/index.php/n...-8700rpm-.html

It's Engineered extremely well too. Great job!

Like I said, the parallel twin might just be the best M/C enging for packaging reasons.

Or, if that ain't crazy enough for ya:
http://www.youtube.com/watch?v=Ceeyr...feature=relmfu