HP on 400ex?

[MadMan400ex]

Does anyone know what the horsepower on a stock 400ex is? And at what rpm does it maximize power? Just curious

[stupid driver]

around 24-26 stock, and you will get most of that in the mid range, so prolly around 6000 rpm,

[Cody_300ex]

ATV Performance Comparison Chart
Model cc Bore & Stroke (mm) HP Weight Price
Ketchum KR200R1 198 69 X 53 14.0 315 $3,199
Ketchum KR250RR 249 66.4 x 72 60.0 320 $6,599
Cannondale Cannibal 440 432 95 X 61 37.9 375 $6,999
Honda Sportrax 250EX 229 68.5 X 62.2 11.9 349 $3,899
Honda Sportrax 300EX 282 74 X 65.5 13.6 377 $4,799
Honda Sportrax 400EX 397 85 X 70 26.5 375 $5,699
Kawasaki Mojave 250 249 74 X 58 N/A 379 $4,099
Kawasaki Lakota Sport 300 290 76 X 64 13.8 448 $4,099
Polaris Trail Blazer 250 244 72 X 60 13.9 461 $3,399
Polaris Scrambler 400 378 83 X 70 N/A 481 $4,999
Polaris Scrambler 500 499 92 X 75 26.5 559 $6,099
Suzuki LT-Z400 398 90 X 62.6 N/A 370 N/A
Yamaha Blaster 200 185 66 X 57 13.9 320 $3,099
Yamaha Banshee 350 347 64 X 54 (2) 40.5 388 $5,999
Yamaha Warrior 350 348 83 X 64.5 18.3 397 $4,999
Yamaha Raptor 660R 660 100 X 84 34.3 398 $6,499

[RiPPiNiTuP7]

28hp stock...

heres a dyno to prove it:

http://www.imagestation.com/picture/sraid71/pdfc64622c80d27ca89b2caeb08e6144a/fb993916.jpg

the 04's prolly picked up a couple ponies with the new carb they have now.

[skemp]

ALL dyno's will give slightly different numbers, but most are between 25 and 26. I have seen a dyno chart claiming 34 HP on a BONE STOCK 400, and another claiming only 22, so you have to play the averages game with dyno charts.