Has anyone looked into the difference between these two motors and if there is the possibility to swap parts and get more power out of the ranger 900 motors? Just something to think about - I'm always looking for mo powa!
The Ranger 900 is far more similar to the 1K RZR that the RZR 900. The RZR 1K TBI, injectors, and ECM are bolt in on the 900 ranger. There is tuning involved, but just those parts will wake up a Ranger significantly.
I am sure its more than the ecm, injectors and throttle body. I assume compression is different, pistons, cams, and more. It would be an awesome machine if you could even get to 85hp, but at 60 it doesnt add up for me vs the old 800. Now I am looking at purely cost vs output. I realize the 900 is an all around better machine, but I picked up a nice 2010 Ranger Xp 800 LE for under 7K and I cant justify 14K for a 900 unless there is some potential for REAL HP gains.....
Coming off an 14' 850 sportsman (still have a 13' 500 and wife's 08' 300) this 900 definitely has some room for performance improvements. It IS however a torque monster, you floor it she launches with authority then just kinda casually makes it's way to 60. It's satisfactory for me, but I wouldn't want anything less than a 900 in a heavy side x side. I am currently running a QSC primary which did help pull even harder down low off the line and will be installing a full QSC clutch kit to see what kind of gains can be had.
Search out parts like the cam, pistons, etc. Scroll over to the right on each part in the parts window and you will see a link called "usage".
For instance I just pulled up a 2015 Ranger 900 Crew and searched out the piston kit. I can see the same kit is used in the following machines. SO...the 900 Crew uses the same piston as the 900 RZR and 1000 RZR. Identical part number for all machines.