I see HP figures but who's testing these bikes? Claims of very high HP between bikes make me wonder what the torque curves look like.

 

Do you mean bb utility atvs? Sport atvs are pretty common to find #s for but the ute atvs are usually done privately but reliable charts are out there as well. Just watch out for the fake charts that read crank numbers. There will always be some degree of loss to the rear wheels. Best to use a dyno as a estimate number as every dyno will read a little bit different. Here are some I could find

grizzly 700 (1st number stock, 2nd number is with exhaust,programmer,intake mods)- http://www.ehsracing.com/images/gall...mbo_b_main.jpg

Outlander 800 (stock vs mod) - Can-Am ATV Forum

Honda rincon - Nyroc's ATV info website

Incase you also wanted sport atvs, here are 2 big bore sport atvs the trx700 and the raptor

2010 Honda TRX700XX Comparison Picture 2 of 18 - Motorcycle USA