What does your 855cc motor run on motor is it in a oem frame or longer frame goodsound? I bet it takes a big tire to get those motors going don't it.

 

Yes, its in a OEM frame. My best in alabama on motor was 4.34. But with a little more time to do a little tweeking here and there, we're pretty confindent it will run low .20s. We were running between 18 paddle extremes 83 ro, 16 paddle staggered rippers 82 ro, and 26" Sandblasters 88 ro.

 

does the ro= 83 " worth of a circle is so that is a big tire what does the 770 run on motor is it in a oem frame as well? do you run nitrous on both of your bikes how much difference does the nos makeup for tenth or so or more do you blast like a 20 shot to it how much will they stand before they blow up in smoke., thanks i like the ds's

 

Ro means roll out. Roll out would be like if you were to be able to lay the tread area out flat on the ground and measure from one end to the other. For example, think of wrapping a string around the the tire, and then laying the string out flat. What the string would measure, would be your roll out. Does that make sence?

The 770 is also oem, and it runs 4.6-4.8 roughly. I dont run nitrous on the 770.

In Alabama, we sprayed the 855 a 20 shot, and it ran 4.06, and on motor, it ran 4.34, so roughly a 3 tenths difference. But then again, that is going to differ from bike to bike, and track to track, and what not.

I would be comfortable spraying a 30 shot on that motor, but not very often. IMO, any more than a 30, is very risky. But keep in mind, this motor is set of for nitrous, with a forged piston, little bit lower compression, and a bigger ring gap. On stock motors, I think 20 is all people are getting away with.

 

that guy must do a good job on the motors form them to run that good.
I don't know who the ds's i seen in southwest VA was but they also done a good job as well thank for all the info what does an average motor build cost like your 855cc ??

 

That guy, is Eric Oldham at OMW Racing. You can see him in that vid, he goes by Mr Horsepower, and he is riding the camo rigid bike. I cant tell you exactly how much the 855 cost me, because there were alot more extra cost involved, not concerning to motor. The best thing to do is call him personally, and get a quote from him.

BTW, thanks for the compliments.

 

is he the same guy as bom or is that someone else?

 

Nope, different person. Here is his company website, www.omwracing.com

 

Anything above a 770 doesn't he personally assemble and break those motors in?

 

Im sure he would assemble and break in any motor you would want him to. He's also done several yfz's, raptors, honda's, even a fire breathing z400. Right now, he is in the process of engineering parts for a DS450, and the ktm's.