forgot to mention running factory 27" bighorn tires.

 

Also rzr does not stutter off the line or anything. Very smooth power till 65 then it's at 8500 rpm all the way to 76 mph instead of 83 or 8400 till top speed what gives?

 

Well can't seem to get a definite answer so I've ordered an epi red primary spring. Maybe this will lower my full shift rpm by 2 or 300 rpm to keep off of the Rev limiter when at speed. Does this sound like it will work??

 

That won't change anything, once the belt is at top of primary you are on engine power and that is around 50mph

Also sounds normal to me

 

8300 is the max I've seen on my '14. I haven't hit the limiter in hi yet that I know of.

 

What kind of speed are you seeing the 8300 rpm? Mine holds the 8300 all the way til 65 then all the way till almost 80 it hits the Rev limiter a few times. Almost as if too much shift out or belt slip. Belt looks new so I do not believe that is my cause plus everywhere else it's just right only 65+ is it doing this. Hoping that the red primary which is 140 lbs at 1.25 instead of the 170 lbs at 1.25. Will drop engine rpm enough to keep me off rev limiter does anyone know what this will do?

 

What elevation are you running at?

 

Had same problem

 

I will report back later since I havent had mine up above 50-55 as i'm still breaking it in.
I'm hoping it will do the advertised 73 mph or so...

 

Good luck with that
It all depends on elevation

 

elevation shouldn't be an issue I'm only about 800 feet above most of the time

 

Ok if you dont think you need to clutch for your elevation

 

Call Todd at Hunterworks. I would consider a clutch kit like Highrider said, regardless of your elevation. The Polaris clutching is pretty good stock but it can be improved.

 

I agree with Dallas Above ^^^
Stock is Stock but alot left on the table..

I run @ 8,300' up to 10,000' and get 73 mph with current clutching-- Imagine at sea level or the flat land of what ever to 1,000' elevation



HR

 

BTW these were the same results I got but with no spacer removal. From my experience thus far and the four other XP 900s in our group we all achieved almost identical results following break-in. To me this was normal even the jump to 8500 rpms after the mid 60's.

 

we will see... the manual does not recommend adjustment of anything under 1k or near sea level.
Is there still a spacer that needs top be removed like the 800 models?
If it only does in the low to mid 60s i will be clutching it in the future.

thanks guys.

 

Im setting at about 600' in elevation up to about 900' so not sure if the elevation is an issue for me. Stock I ran up to 70mph and it would just sit there. After removing spacer it will run between 75 and 80 so im sure you will be running faster then 60s. The top speed wasnt really my question as much so as if my rzr was acting normal in after reaching 60+ mph jumping up to rev limiter and remaing there all the way to the top speed of 75+. I did order an epi red primary spring to try and bring my full shift out rpm down 2 or 300rpm to keep away from rev limiter until a greater speed. Any thoughts as if my theory will work?

 

Stick rev limiter is 8350 correct or am I missing something?

 

soft and hard at 8500

 

Here is from the owners manual from 2013

Engine Idle Speed 1250 ± 100 RPM
Engine Max Operating RPM 8750 RPM

 

8500 is the rev limit. May see 8550 but thats it. I understand that once full shift out is achieved "50mph" I will be going on engine alone. I am just wanting to drop the rpm from the 8300 that it holds at wot to the 50mph mark. Im hoping the red primary spring will drop wot rpm a few hundred until full shiftout is achieved. So maybe the red primary will help. Not sure but I was a brig kawi brute force guy for a while, after playing around with springs on primary I lurned that on a 10lb variation at 1.25" compression on spring will intell right around 100 rpm difference. So im hoping that going from stock spring which is 170lbs at 1.25" to red epi which is 140lbs at 1.25" will give me the 2-300 rpm drop i so desire at wot. Thanks again everyone great knowledge here!

 

red spring will be here tomorrow so hopefully i can get that in one day this week and see what happens. Is there anyway once full shiftout is reached at 50mph to keep the rzr from running on rev limiter? I have noticed if I lift my foot just a tad it will drop the rpm some but I also lose acceleration. But the videos Ive seen on youtube most are running 8300 rpm all the way to the top speed then hitting rev limiter not 8300 to 60 the running on the rev limiter all the way to top speed.

 

Not to sound like a smart butt, but if you let off the gas some rpm will go down and you will lose acceleration

Also, I can't figure out why you want to drop RPM, it sounds right already

I think the only thing you are really gonna change is engagement RPM and maybe a tad lower during shift phase

Todd

 

I understand whats happening when I let off. To me it just doesnt seem like i should be banging the revlimiter from 60-80mph. Thats what I would like to get away from is pounding the rev limiter for 20 mph its like being on a 450r at 60mph and stabbing the throttle and the clutch slipping only slightly alowing for rev limiter action all the way to top speed. I just cant see how its normal to be on the rev limiter with nothing slipping from 60-80. My brute force was never like that it only hit revlimiter at very top speed not the last 15mph on the way to top speed.

 

I must have missed the hitting limiter at 60 ish to 80

If whiter spacer is removed and you are hitting the limiter you have a mechanical issue with the clutch causing binding somewhere.

Check for flat spotted roller on secondary and clean primary

Todd

 

Well everything looks great and brand new looking. Also the rzr did this before I removed the spacer. It just didnt hit the limiter as much because it only ran 70mph. Rzr only has 21hrs on it now. How exactly or at what speed should I see the 8500 rpm? I am going to see if I cant figure something out with this thing. I def do not want to tear anything up. Also like I said the rzr acts normal from dead stop all the way to 60 or 65 then rides at 8500+ rpm to top speed and will hit the rev limiter a few times in the process. It doesnt just sit on the rev limitter the whole time but it does hit it a few times from 65 to top speed 6 or 7 times prolly. Thanks for all your help so far Todd I appreciate it. Just trying to understand these things to the best of my ability

 

Ok got an update. Installed epi red primary spring, checked over all sheaves bushings and bearings. Everything looked fine wiped what little dust there was from the little time its been rode, installed new spring put back together. Rzr running fine now?!?!?! I go wot from dead stop rpms go up to 8100-8200 until 50mph or so then goes up to 8450 max and sits there till 78mph then goes to 8500 and hits rev limit once top speed is achieved. Explination for this? It does not hit rev limit till very top speed now as should. I am wondering what was the cause of my issue?!?!?

 

You still have a issue if it is running 8450 at 50 to 78, too high. You have a mechanical limitation somewhere.

Todd

 

I miss printed that sorry. It's 8100 to 8200 up till 60 then it slowly begins to rise to the 8450 mark around 72 or 73 mph then hits a top speed of 78. I didn't mean that it went straight to that rpm at 60 mph it slowly climes the way you would think it should. It seems as if it's right now. Just can't figure what was wrong before though. The rpm holds solid till shift out then slowly rises. I really don't know what else I could look for

 

now that sounds right