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Oh. It I’d be all over it in low elevations. A couple friends of mine have low land turbo assaults. Pretty sweet. But better have a good cooling system.

Today, you can spend what, $4000+ for MAYBE 20 hp on pump gas at low altitude and gain what, 15ish lbs? Then, like you said, you also have a cooling issue. Plus it would be mass produced with a warranty? Yeah. I don’t see it happening. Factory twin pipes and a good ecm calibration tool match them, would make more $$ per HP sense but I don’t see that happening either.

I know for a fact that I certainly wouldn’t waste my time turbocharging a low altitude 2S sled and the one that I would do it to would be my RMK which is RARELY in a low snow condition so cooling is also rarely an issue. Now, if I lived out west.......
 

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my prox makes me grin on every ride as others complain about seat height and suspension and how the nut job rides that polaris once in a while maybe once or twice a year i let them experence what i encounter every ride one crew member switched to an xc 850 ill see if it is equal results soon enough :bc:
 

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I’m seeing the Pro XC as a 129 Rush only, The Indy XC goes to 137 or 144 and absorbs the assault name. A 600 Patriot would be nice..and available across the board. 800 is dropped and 850 is no longer snow check only. And the heck with the mountain guys. <img src="http://www.hardcoresledder.com/forums/images/smilies/whistle.png" border="0" alt="" title=":whistle:" class="inlineimg" />
Yeah, what he said!!!^^^???
 

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Today, you can spend what, $4000+ for MAYBE 20 hp on pump gas at low altitude and gain what, 15ish lbs? Then, like you said, you also have a cooling issue. Plus it would be mass produced with a warranty? Yeah. I don’t see it happening. Factory twin pipes and a good ecm calibration tool match them, would make more $$ per HP sense but I don’t see that happening either.

I know for a fact that I certainly wouldn’t waste my time turbocharging a low altitude 2S sled and the one that I would do it to would be my RMK which is RARELY in a low snow condition so cooling is also rarely an issue. Now, if I lived out west.......
No they are running way more power than that. On pump gas. On 800s so 155 ish to start i believe they thrall ride them on pump gas at over 200hp. So plus 45 or 50. Hp. And at that power level they haul ass. Embarrass thundercats and sidewinders. They do run warmer than a non turbo sled. Mark my words Polaris and doo are in a secret race to bring the turbo 2 stroke to market. You heard it here first. :bc:
 

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Mark my words Polaris and doo are in a secret race to bring the turbo 2 stroke to market. You heard it here first. :bc:
Okay its time to put a "LID" on it,, haha,, here is what I sent to HCS in Feb 2018,,

"Don't be surprised to see a Doo 850 2 stroke Turbo in the next few years (Summit) or similar. Patents where approved in 15/16 for Rotax 2 stroke turbo including a patent for an electric motor assist turbine (zero lag) this uses the similar SHOT system capacitor to electrically spin the turbine at low speed throttle request via capacitor. Possible liquid cooled pipe, and ECU that controls the turbo air flow rate and boost pressure; it will have full control of the compressor speed, the pipe (liquid or not) which will match these and the direct inject fuel flow rate along with the return speed of back pressure for a more complete intake, combustion, exhaust cycle."

Keep in mind they ALL apply and secure Patents for various components every year but that doesn't mean it will make it to production,, doesn't mean it won't either and it is quite possible that Polaris (or others) have similar type of patent. :frantics:
 

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No they are running way more power than that. On pump gas. On 800s so 155 ish to start i believe they thrall ride them on pump gas at over 200hp. So plus 45 or 50. Hp. And at that power level they haul ass. Embarrass thundercats and sidewinders. They do run warmer than a non turbo sled. Mark my words Polaris and doo are in a secret race to bring the turbo 2 stroke to market. You heard it here first. :bc:


Safe on a 205 tune at low altitude? On the RAGGED edge, MAYBE.

I’ll believe it when I see it.
 

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Idk. The specifics. I personally know 3 guys with turbo assaults I have rode trails with them . They said power is about 200 but can go higher but then they would have to run race fuel or a blend at least. Which I completely understand how that works. I do know they would make fuel adjustments here and there. It is fair to say if the factory delivered them this way they wouldnt crank it up that much. If I remember correctly one had a silber set up and other 2 were boonedocker set ups. They work I didn’t believe it either till I saw it first hand . We did everything from multiple back to back lake passes to regular high speed trail riding and non of them had a problem. One guy was even riding 2 up. They did seem to run hotter. Years ago my buddy had a turbo 700 ,still owns it , that we ran in the ice and set up for tar racing that was a pia. All kinds of problems. Old tech ? Idk.
 

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Eric Vohk told me 3-4 psi max on pump premium, at Michigan altitude, and that’s pushing it. He recommended 2-3 psi to stay safe. If running 3-4, 1000-1200 ft pulls only, chopping the throttle every 5-6 seconds on long wot pulls in deep snow. A splash of 108 octane was recommended at that boost level too. 108 and greater well then the boost/hp goes up. This was for an RMK.

1 psi is roughly 10 hp at the crank, iirc, so $$ per HP to me, it isn’t worth it at low altitude. If Polaris or Doo brought one with more than 2-3 psi from the factory, I’d be VERY impressed. They’d be pulling boost and adding fuel anytime the littlest thing went sideways, as well, just to make sure it didn’t get hurt.
 

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Sounds about right to me. 4psi 155/157 plus 40 195/197. Seems right. They trail rode fine and did dozens of 1000ft races on lake. 850. 170 plus 40 -210 sounds good to me. I agre factory would have them tuned down for saftey so even 200 on a 850 would be fun. Who knows time will tell. Then again if it’s turbo specific they may lower compression and crank up the boost a bit. With timing controlled, det , etc. I can see it working fine. I’m more concerned about blowing boost last the crank seals etc.
 

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I’m seeing the Pro XC as a 129 Rush only, The Indy XC goes to 137 or 144 and absorbs the assault name. A 600 Patriot would be nice..and available across the board. 800 is dropped and 850 is no longer snow check only. And the heck with the mountain guys. :whistle:
If I'm not mistaken, Indy was introduced as the "value" trail sled, the Rush was the performance trail sled, and the Assault was the "crossover/backcountry" sled. I think all of the manufacturers started overmarketing the backcountry riding style several years ago, and now everyone wants (or thinks they want) to be a backcountry rider. So trail sleds have taken a nose-dive in sales.

Considering how much unique tooling is needed for such a different platform, it would be hard to blame Polaris if they canned it since it has to be harder and harder for them to make a buck on each one as volumes go down.

Maybe if they brought out an all-new version of it they could breath new life into the chassis. But it would be a gamble for them. They would have to market it aggressively (which is costly) or price it aggressively (which is also costly) in order to generate enough sales to make it worth it.

As for the 600cc market, both Cat and Doo have brought out new 600's in the past few years. If Polaris doesn't want to lose this market share, they will also have to "keep up with the Jonses." Besides, I'd love to see them come up with a 600 that has a fresh kick of HP and class leading fuel economy. Maybe a 650? (just dreaming...)
 

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There old 600 gives up nothing to the new cat 600. Doo coming out with this new torquey 600 may give poo a lil push to move on it. But bottom line is 600 sleds just don’t sell like they used to. Even the doo guys at work were all bragging up the new 600 so I said so you guys are all gonna but one then ? They all said no way not INterested in anything but 800/850. So even though it’s nice that isn’t the scale tipper. At least I don’t think
 

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There old 600 gives up nothing to the new cat 600. Doo coming out with this new torquey 600 may give poo a lil push to move on it. But bottom line is 600 sleds just don’t sell like they used to. Even the doo guys at work were all bragging up the new 600 so I said so you guys are all gonna but one then ? They all said no way not INterested in anything but 800/850. So even though it’s nice that isn’t the scale tipper. At least I don’t think
I understand your point. They all make a lot more profit on an 800 than they do on a 600 so it makes sense for the manufacturers to push buyers to a higher power sled.

But I guess it depends on your crowd. Everyone I ride with has a 600. We just don't ride top-end like we used to, and an 800 class just doesn't have enough on a 600 in the low and mid range to make it worth the extra for the sled, belts, gas, and insurance. Why should I pay for all that if I never use the extra performance?

... but that doesn't mean that I'm ok with an outdated engine. I want continued improvements in responsiveness, smoothness, and efficiency to make it feel fresh and new when I buy a new sled. That takes development, calibration, and meaningful refinement improvements year-over-year.
 

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600s of years ago were some of the best running engines back then. my pro x 600 would hang with a lot of bigger sleds. killed my buddies pro x 700. you could tinker with a 600 and get some good power. and the bigger engines did bring issues that us 600 guys didn't see. i followed that sled with a 600ho and it too was a strong runner after some tinkering. now the 800s are pretty solid, get sometimes better economy, don't cost a lot extra when bought as a leftover. insurance reasonable. weight not a huge difference. i just like the extra power when pushing powder , or just for that feeling of an 800 pulling your arms.
 

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If I'm not mistaken, Indy was introduced as the "value" trail sled, the Rush was the performance trail sled, and the Assault was the "crossover/backcountry" sled. I think all of the manufacturers started overmarketing the backcountry riding style several years ago, and now everyone wants (or thinks they want) to be a backcountry rider. So trail sleds have taken a nose-dive in sales.

Considering how much unique tooling is needed for such a different platform, it would be hard to blame Polaris if they canned it since it has to be harder and harder for them to make a buck on each one as volumes go down.

Maybe if they brought out an all-new version of it they could breath new life into the chassis. But it would be a gamble for them. They would have to market it aggressively (which is costly) or price it aggressively (which is also costly) in order to generate enough sales to make it worth it.

As for the 600cc market, both Cat and Doo have brought out new 600's in the past few years. If Polaris doesn't want to lose this market share, they will also have to "keep up with the Jonses." Besides, I'd love to see them come up with a 600 that has a fresh kick of HP and class leading fuel economy. Maybe a 650? (just dreaming...)
I agree that the manufactures pushed hard on the off trail sleds. You hear alot of people say the assault is good on trails... But not compared to a trail sled. Ive riden an assault on trail and hated it. Marketing says its best of both worlds, but it isn't. It doesnt do anything great imo. Its not the best trail sled, its not the best off trail. It just can do both.

The 600 I dont think polaris needs to do anything. All it will do is jack the price up. Which trust me. 3/4 of people at the dealership just complain and complain about prices and how they are being robbed already. So I hope polaris does nothing with their great 600s.
 

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Ive riden an assault on trail and hated it. Marketing says its best of both worlds, but it isn't. It doesnt do anything great imo. Its not the best trail sled, its not the best off trail. It just can do both.
True. Not the best at anything....but it is better than the ProCross on trail, it is better than any non-RMK'ish Poo off trail, it is also better at whooped trail than the Indy XC or ProS. I completely agree it is not the best at anything, but also think it is the most logical sled in the Poo portfolio for riders that sometimes venture off trail and ride on trail. I'd rather have a dedicated machine for both again...but with kids don't have that much time and need a solution that covers most in one and it is GREAT for that.
 
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