I thought this interesting....

SPORT QUAD power-TO-WEIGHT ratios… Highest to Lowest
(approximate stock rear wheel horsepower / factory claimed dry weight)

1. Suzuki Quadzilla LT500 ---------> 51srwhp / 390lbs = 0.1308 horsepower per pound
2. Polaris Predator 500---------------> 45srwhp / 415lbs = 0.1084 horsepower per pound
3. Cannondale Cannibal -------------> 38srwhp / 375lbs = 0.1013 horsepower per pound
4. Yamaha Banshee ------------------> 37srwhp / 386lbs = 0.0959 horsepower per pound
5. Suzuki QuadRacer 250R --------> 31srwhp / 327lbs = 0.0948 horsepower per pound
6. Kawasaki Tecate 4 ----------------> 33srwhp / 339lbs = 0.0944 horsepower per pound
7. Honda 250R --------------------------> 31srwhp / 329lbs = 0.0942 horsepower per pound
8. Bombardier DS650 ----------------> 42srwhp / 465lbs = 0.0903 horsepower per pound
9. Yamaha Raptor 660R -------------> 35srwhp / 399lbs = 0.0877 horsepower per pound
10. Suzuki Z400 / Kawasaki X400 -> 32srwhp / 370lbs = 0.0865 horsepower per pound
11. Honda 400EX -----------------------> 29srwhp / 374lbs = 0.0775 horsepower per pound
12. Polaris Sport 400 ------------------> 31srwhp / 481lbs = 0.0644 horsepower per pound
13. Yamaha Blaster --------------------> 19srwhp / 320lbs = 0.0594 horsepower per pound
14. Yamaha Warrior -------------------> 22srwhp / 397lbs = 0.0554 horsepower per pound
15. Polaris Scrambler 500 2WD ---> 29srwhp / 525lbs = 0.0552 horsepower per pound
16. Honda 300EX -----------------------> 17srwhp / 377lbs = 0.0451 horsepower per pound
17. Kawasaki Mojave -----------------> 17srwhp / 379lbs = 0.0449 horsepower per pound
18. Honda 250X -------------------------> 15srwhp / 351lbs = 0.0427 horsepower per pound
19. Honda 250EX -----------------------> 13srwhp / 349lbs = 0.0372 horsepower per pound
20. Suzuki QuadSport 230 ----------> 11srwhp / 309lbs = 0.0356 horsepower per pound

Inflated to say the least..

RoostKing..

Man I'm still gonna throw you in the fire!
What don't you believe? The Horsepower ratings?

Where are the wheelers at? Great power to weight ratio

Well I know the Three Wheeler weighs 291 lbs.
But I do not know what the stock horsepower rating was on them.... Anybody?

This got me thinking about my HP on the old quad. So I ck my read outs and the old girl is kicking out 36.3 HP on avg at 29.0 ft-lbs.

Same as the fourtrax 250R (mine has a little more )

Well if the list is correct and the 250R (quad) put out 31 HP I would think that the Three wheeler motor was pretty close cause they have the same motor so 31/291 = 0.1065 Which would put the R between the pred and the Cannibal
Pretty impresive for a vintage bike .....
It takes balls and skills to ride on three wheels!

My YZ125 has all those beat! 32/198=0.1616 I wander what my new 250 would be...

Now what's the hp/cc on all those in that list?

My ex (when finished) should be around 42hp with a dry weight around 360lbs.
So 42/360=0.1167... Maybe I should go with a high compression piston and race fuel.

I used the weight of the 250r which should be close to right and the power of the Tecate 4 and came up with 0.1134 for the Tecate 3........and they all laugh at me when I pull up to the line.