The 800 h.o. was offered in the zx chassis, the 03 summits.TuGHiLLBoYs said:b/c i put an 04 800 H.O. in it this year... thats how i know... the only sleds that came with the H.O. motors are the REVs... so its pretty sweet to have an 800 H.O. in a ZX chassis!!!
All round better performance... faster in the low/mid/ and high range!!! the gas milage is slightly worse b/c of the increase in motor...freddy2 said:Well how does it run? How does that motor feel in comparison, in low/mid/top end....I presume most of the increase is in the top end? How does mileage compare?
i kept the same carbs but had to down size the jetting... the reason for this is b/c with the REV there is less of an air box than in the ZX chassis... so since i did that... it has been running BEAUTIFUL!!! i have put on 700 miles so far with this engine and haven't had one bit of problems what so ever... it also has a huge increase in power compared to my other stock motor... but it is also ported and has high performance pistons and rings and also has dome head inserts...bobber said:What carbs did you install? I put 800HO in my '02 MXZ800X a couple of years ago BUT biggest advantage was get rid of the '02 carbs. I kept the '02 magneto due to having to change the wiring system because of higher output magneto with different plug-ins. What MPEM module did you stick with? I kept the '02 after talking to Ski-Doo Race dept. about having it re-programed (no need to).