XP big bores - lets compare

[deaner]

Hey guys. Thinking about doing a big bore on my XP. Just wondering what the main differences are between the different options out there. And what your opinion of the "best" one out there. Also any real world comparisons would be great. Do they all use the same pistons? Claimed HP?

Options:

Big John 860
RKT 860
Turbo Al 888
Split Second 860
Motts machining 880
Engine Tech 860

Im thinking either Engine Tech because Ive heard good things about Art. One thing that concerns me is that he is from out east. Not sure if he does any testing in the mountains or not. Either that or Split Second. Ive never heard anything bad about Ralphy. Plus, I think he kind of caters to the mountain market doesnt he??

[trinitypowder]

Big John/SHR860. He's a Minnysoda flatlander, but he rides and developes his motor at Cooke City, MT. I went with him because of his accessibilty and great track record. I have never heard of one of his motors "popping" or burning down. He has 25+860's out there and I think he said only one went bye bye due to bad gas. Mine runs like a champ. If you have a about 3g's(that's taking her apart, trueing the crank, shockwave, clutch brace, and clutch kit) send the motor to him and turn him loose! You'll be happy I have called him about 30 times in the last 3 months and he answers about 95% of the time. The other 5% takes him half day before he'll get back to you. That IS CUSTOMER SERVICE