[alewis]

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!

 

[mrxlh]

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.

 

[alewis]

Interesting - has anyone tried swapping these parts? I may have to dig into this and try something if I can get away from work on time in the afternoons!

 

[mrxlh]

Yes, someone is already racing this combo, and it is bad arsed.

 

[VtecGSR95]

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.....

 

[FUSE]

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.

 

[clayton74]

It's very easy to see what parts are shared by what.

Go to this page, pull up a 2015 Ranger

Browse

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.

Year Product Model Assembly 2015 RGR RGR 900 XP ALL OPTIONS ENGINE, CRANKSHAFT and PISTON - R15RTA/E87 ALL OPTIONS 2015 RGR RANGER CREW 900 ALL OPTIONS ENGINE, CRANKSHAFT and PISTON - R15RUA87/E87/YAA/ZAC ALL OPTIONS 2015 RZR RZR 900 50 INCH ALL OPTIONS ENGINE, CRANKSHAFT and PISTON - Z15VA87 ALL OPTIONS 2015 RZR RZR 900 60 INCH ALL OPTIONS ENGINE, CRANKSHAFT and PISTON - Z15VBA87AJ/E87AK/AM/AT 2015 RZR RZR XP 1000 ENGINE, CYLINDER AND PISTON - Z15VDE99AT/AL/AV/AW/AA 2015 RZR RZR XP 4 1000 ENGINE, CYLINDER AND PISTON - Z15VFE99AT/AV 2014 RGR RANGER XP 900 ALL OPTIONS ENGINE, CRANKSHAFT and PISTON - R14UH88/9E/9EAN/9EAI/9EAIC ALL OPTIONS 2014 RGR RANGER 900 CREW ALL OPTIONS ENGINE, CRANKSHAFT and PISTON - R14WH88A/9EA ALL OPTIONS 2014 RZR RZR XP 4 1000/PS ENGINE, CYLINDER AND PISTON - Z146T1EAM/EAW 2014 RZR RZR XP 1000 ENGINE, CYLINDER AND PISTON - Z14ST1EAM/EAW/EAK/EAN/EFW 2014 RZR RZR XP 1000 INTL ENGINE, CYLINDER AND PISTON - Z14ST1EFX

Using this you can determine what parts Polaris changes. This is how I determined there is ZERO mechanical differences between the 2015 900 XP HO and the 2015 900 XP engine used in the crew. The ONLY difference is programming.

 

[FUSE]

^Interesting.....IF all that is needed is to switch out throttle body, injectors, and computer to get the gains of a RZR now THAT would be a worth while investment if performance is top on the list !!!!

EDIT: I thought that the rzr's and rangers all used the same ecm just was programmed different...

 

[rocknroll]

The engine in the Ranger seems to be the same as the one in the new RZR 900 Trail and 900S, which is only 75 HP, but it will eat a RZR 900XP (88hp) up to about 50 mph. In fact it stays close to the 1000. The 75 horses they programmed into that new 900S are evidently a lot bigger than the horses in the other RZR's .

The only differences I found in the motors are the intake airbox and tubing (injection system is the same), and the exhaust system.

 

[triple c- motorsports]

Any new news on this subject?

 

[alewis]

this is all pretty interesting - ive been looking for used rzr 1k throttle bodies, intakes and ecms for a possible sway - it would be quite an undertaking to make everything work together - someone try it before me!

 

[alewis]

looking some more at parts schematics - the rzr-s 900 (2015) has the same throttle body and ecm as the 2015 ranger 900

 

[rocknroll]

The motor in the RZR 900s and the one in the Ranger 900 are the same motor. Look at the part numbers. Only differences are the air box and tubing and the exhaust system.

 

[fswan]

There's only about 135 pounds difference so the differences must be in the programming, and/or clutch, and/or trans gearing?? Both front and rear gearcases, and clutches are different.

 

[alewis]

wish i knew someone with a 900s rzr that I could swap ecms with

 

[clayton74]

looking some more at parts schematics - the rzr-s 900 (2015) has the same throttle body and ecm as the 2015 ranger 900

The part number on all the ECMs are the same, however they are programmed with vehicle specific programs by the dealer. For instance if you drop a RZR ECM into a Ranger, you will lose the turf mode since the RZR doesn't have that.

 

[clayton74]

The engine in the Ranger seems to be the same as the one in the new RZR 900 Trail and 900S, which is only 75 HP, but it will eat a RZR 900XP (88hp) up to about 50 mph. In fact it stays close to the 1000. The 75 horses they programmed into that new 900S are evidently a lot bigger than the horses in the other RZR's .

The only differences I found in the motors are the intake airbox and tubing (injection system is the same), and the exhaust system.

You really have to spend some time being very systematic going through each and every part to verify the engines are the same. Back on my 2009 Ranger 700 I used this process to develop a parts list to convert my 700 motor to a 800 RZR-S motor. It wasn't all that hard or costly.

If I find some time I'll study it, but it would be pretty sweet if we could get RZR power for under $1,500 in parts.

 

[clayton74]

Pretty surprised. I can't find any differences between our 900 ranger and the 900 RZR motor. Same cases, crank, rods, pistons, cylinder, head, cams, valves, throttle body, intake, injectors and fuel rail. The only difference lie in the exhaust, which is of course dictated by the machine. Even so, I'm sure the RZR's flows a little better but, not enough to be an issue. Very tempting to try a trail RZR 900 tune. Does anyone know, does the new 2015 RZR have the same seatbelt programming as the 2015 900 Ranger?

 

[ChrisH]

The 2015 RZR 900 and 1000 both limit vehicle speed to 15mph when unbuckled. I also know that the new 2015 RZR 900 trail has the turf mode rear differential. Interesting

 

[alewis]

im going to hunt down a rzr 900 to try and swap ecms with - I don't have turf mode anymore anyway so no worries there.