My buddy has a speciality sled 860 with a RKtech head and it's been giving him greif all winter! it wouldn't rev over 8000rpm and was slower than a stocker, Last friday we took it out testing and had good results with the changes, he went from clicker 4 to 2 and taching 8200 and the sled seems strong but we are wondering now is it better than a stocker.
Truthfully some guys are having good luck and some are not. I don't think they are worth the $$ because of the good runners and bad runners.
If forest Gump was a sledder he'd probably say this.
"Big bores are like a box of choclates, yah never know what your going to get"
Absolutely I might go buy an XP and get the Bikeman 880 kit plus a 30 shot of NOS just because this sled flat out flys.Just ask anyone at the BIS or Yamafest.
Whatta mean? like the Det sensor and Raves and such? the sled has been gone over from head to crank to carb, to clutch, has been on the computer 3 times, back to the installer of the kit twice, and to a builder in red deer. It's better than it was But I don't know if its better than stock, I havn't tried mine against it yet.HUH
The sled hasn't made power from day 1 and will rev at 8000 to 8100 all day long no fade in rpm at all, my stock 09 doesn't have the heat issue either, I looked into the engine tech stat housing for mine to try but I can go pull after pull and still have the power so kind of a waste of $$ if yah don't need it. As far as my buddies 860 we just got it working decent so it need to be tried on the hills before we try a Stat housing on his.
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
) Dont hesitate to build this sled youl luv the BB. also check Big john and trigstad, my buddy runs a 880 trigstad and it hauls balls! (byeatts) This guy knows ALOT about doo,s also. Good luck to ya !!!! were starting to accumulate alot of xp,s in our group with different combo's so dont hesetate to call and ask questions. ask for Sean 2 West coast sleds. (559)392-1182. Good luck to ya Brotha!!!
I have a question! When the sleds operating parameters are not being met, like the temps increase and the ecm retarded the timing, Isn't the check engine light supposed to come on or the temp light come on if the temp reaches 141 deg and goes into limp mode by retarding the timing. If there is two stages to the timing retard like everyone says shouldn't the computer be able to pick up a code With the BUDDS at either stage.
hey deaner, Im running a engine-tech 860 in my 09 xp 163. Heres the combo e-t 860 w/ 13.5 domes, v-force reeds, stock pipe w/HPS can 540 mains 30 thou shim under needle, timbersled air box delete kit. ecm re-flash ( engine-tech) shock wave helix. she runs 1150-1200 on a nice long pull. vp110/91 oct @50/50 We ride out west 7-10k ft Let me tell you THIS THING RAILS!!!! for 3k you can have ALOT of fun! (not like our turbo nytro's...35K
Good to hear some feedback on the different kits. How does your Engine tech big bore compare to the others like the trigstad. Are they fairly even. (sorry........my question mark isnt working. Instead I get a stupid little e with a mark above it) Have you run against many stockers. How much of a difference is there. 
