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RZR Turbo Engine Discussions for the Polaris RZR XP 4-Stroke DOHC Twin Cylinder Turbocharged Engine/Drivetrain.

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post #1 of 42 Old September 3rd, 2019, 06:49 AM Thread Starter
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AA RZR Pro XP Build

**Note: as we come out with more products/updates we'll edit this thread, so keep checking back***

The 2020 Pro XP is down on crank rated horsepower compared to the X3 RR, but to the wheels this RZR seems extremely efficient. In the snowmobile world Polaris has always been better at transferring power to the ground... its seems the same with this Pro XP. With the larger water cooled turbo & different cams this RZR is going to be a beast. We had time this weekend to do some initial testing and a little clutching. We were high 170's to the wheels with just a flash, clutching added another 5-7hp. Once we get our notes together and do more testing, we'll show other results.

These clutches are simply amazing to work on! We have seen a similar version on the new style Ranger XP 1000's so clutching these is not completely new. This is very important as making clutch changes easier means better power transfer to the wheels at all times for your terrain/tire. Everything comes apart as soon as you remove the primary bolt, so replacing the wearable buttons will be extremely easy. The entire Pro XP has that satisfying feeling that everything was well thought out. More videos/images to come.
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post #2 of 42 Old September 3rd, 2019, 06:57 AM
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Re: AA RZR Pro XP Build

Only 24 hp loss to the wheels stock? That is impressive...

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post #3 of 42 Old September 3rd, 2019, 07:58 AM
 
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Re: AA RZR Pro XP Build

Sweet
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post #4 of 42 Old September 3rd, 2019, 09:29 AM
 
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Re: AA RZR Pro XP Build

Following
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post #5 of 42 Old September 3rd, 2019, 10:04 AM
 
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Re: AA RZR Pro XP Build

Cams or head look interchangeable with past turbo models?
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post #6 of 42 Old September 3rd, 2019, 10:26 AM
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Re: AA RZR Pro XP Build

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Originally Posted by shubb1282 View Post
Cams or head look interchangeable with past turbo models?
this, and does the turbo look interchangeable too?

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post #7 of 42 Old September 3rd, 2019, 10:33 AM
 
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Re: AA RZR Pro XP Build

I'm going to guess to do one part of the top end you have to do it all. Complete top end with turbo and cooling system changes to make it work on older models. Really looking forward to getting some for sure answers on it as well... hoping we can do certain pieces and not the entire thing, but am doubting it.
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post #8 of 42 Old September 3rd, 2019, 12:03 PM
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Re: AA RZR Pro XP Build

I'm curious because I'm already planning to pull the head this winter and build for next year so if the new head is redesigned and is an improvement I might start with it instead of the what I have.
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post #9 of 42 Old September 3rd, 2019, 01:03 PM
 
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Re: AA RZR Pro XP Build

So do you think we can use our old weights and spring s in the new primary.i have one on order as soon as polaris release them.im so tired of the rattling factory 18 primary

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post #10 of 42 Old September 3rd, 2019, 01:17 PM
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Re: AA RZR Pro XP Build

Quote:
Originally Posted by homdaddy View Post
So do you think we can use our old weights and spring s in the new primary.i have one on order as soon as polaris release them.im so tired of the rattling factory 18 primary
Springs, highly doubtful....weights, no. The pro XP uses a much wider weights.

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Help me get some info in these threads: Tire Height --- Front Diff
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post #11 of 42 Old September 3rd, 2019, 01:39 PM
 
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Re: AA RZR Pro XP Build

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Originally Posted by homdaddy View Post
So do you think we can use our old weights and spring s in the new primary.i have one on order as soon as polaris release them.im so tired of the rattling factory 18 primary
I believe I read that the Pro XP Primary will not work on the older RZRs.
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post #12 of 42 Old September 3rd, 2019, 01:57 PM
 
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Re: AA RZR Pro XP Build

It should it's the same belt from what I've read.so I'll get some springs and weights ordered up .sad pard is I'll get my clutching before my clutch

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post #13 of 42 Old September 3rd, 2019, 02:16 PM
 
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Re: AA RZR Pro XP Build

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It should it's the same belt from what I've read.so I'll get some springs and weights ordered up .sad pard is I'll get my clutching before my clutch
Don't go assuming because the belt is the same it will work. The entire clutch is completely different along with a completely different housing. Assuming the crankshaft hasn't changed you should be able to upgrade. However, like the top end you'll probably have to buy everything... primary, secondary, cvt housing, cvt cover, intake and exhaust tubes. That all adds up real quick in price, I'd guess over $2k. And then obviously the body has changed, so you'll have to play around with that intake tube to make work.

As far as individual parts from the primary and secondary swapping over to the old primary/secondary, I would say nothing will swap over at all. Far too different. At best will be the spring, but again I doubt it. And the spring is the least of what I want, there are plenty of springs in many different rates available in the aftermarket that works amazingly well already.
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post #14 of 42 Old September 3rd, 2019, 02:19 PM
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Re: AA RZR Pro XP Build

Quote:
Originally Posted by homdaddy View Post
It should it's the same belt from what I've read.so I'll get some springs and weights ordered up .sad pard is I'll get my clutching before my clutch
According to Hubert Rowland, the primary clutch will retrofit to the current Turbo, and yes, does use the same belt, but it uses different weights for sure, they are much wider, the spring I don't know, but may be similar in size, spring rate is unknown, plus it'll tune differently than the current primary as well.... The secondary uses a different shaft size, so it will not directly fit.

Check this video around the 13 min mark
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post #15 of 42 Old September 3rd, 2019, 02:33 PM
 
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Re: AA RZR Pro XP Build

Great video, I love the way that primary comes apart. I'm really hoping Airdam comes out with a retrofit kit for it. However, I still have concerns. Video guy said it fits (assuming he's right), it still looks huge! I don't know if that truly means it'll fit with my current housing. Fit on the crankshaft, sure. So you still might have to buy the entire housing and cover still to truly make work on older models. Looking forward to seeing how it plays out and is adapted.
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