Just wondering....

What is the jp version of the r1 2008 Kangaroo motor?

I really like this motor for the medium sized track I run at but I may want to give a jp version a try.

Super horsepower 9port motor are over kill on 210x110 track so I was looking for a hopped up version of the r1.

The 9 port stuff also seemed to get much less fuel mileage...but I could have been the way the guys had them tuned.

Thanks
Jamie