I would agree with you Kev, that the porting will add about 2 to 3 HP.

The 700R raptors with similar setup to this XT700, except for stage 2 hotcams also make around the 56HP mark on my dyno, but you have to keep in mind that the quads pull a lot of extra weight from 2 rear wheels, with steel rims and a very heavy axle.

The stage 2 cam setup would add another 1 to 2 HP at the peak by my estimations, but the torque will not be as good as with the stage 1 cam.

I will soon be upgrading the 56HP raptor to a bigger valve configuration and also we will be changing the Hotcams stage 2 for a megacycle X2 cam.

Indications are that we will pick up 2 to 4 HP with that, maybe more.

the stock bore and stroke 686cc raptor with megacycle X2, bigger valves and around 14:1 compression run around the 75HP mark, but the downside is you need very high octane fuel to run this setup.


Lastly, my dyno reads lower than Kev's because I am at around 5000ft above sea level and they don't compensate correctly for the altitude changes.

__________________


Disclaimer: any mod undertaken, are carried out at owners risk