Polaris 4-stroke nice try

[DELTABOX]

Just got the scoop from the local Polaris Yamaha dealer. The new Polaris FST four stroke turbo weighs 568 lbs and has 135hp it is basically a better T660 not in the same league as Apex or Nytro Apex RTX weighs 539 Nytro 533.

The Polaris uses a 750 twin which will still vibrate with probably about 75hp without the turbo and stresses the motor to make 135 with a turbo. This will include some turbo lag plus a loss of reliability over the long haul vs normally aspirated engines.

Apex is looking good.....

 

[Musky Hunter]

Just got the scoop from the local Polaris Yamaha dealer. The new Polaris FST four stroke turbo weighs 568 lbs and has 135hp it is basically a better T660 not in the same league as Apex or Nytro Apex RTX weighs 539 Nytro 533.

The Polaris uses a 750 twin which will still vibrate with probably about 75hp without the turbo and stresses the motor to make 135 with a turbo. This will include some turbo lag plus a loss of reliability over the long haul vs normally aspirated engines.

Apex is looking good.....

I agree the apex is looking good, but I'd like to see the Polaris before I jumped to all these conclusions.
Once there is a little competition in the four strike arena, the advancements will come even faster from all the manufacturers.

 

[nhrxrider]

I can understand Polaris (because of their bikes) going with a V-twin, but I don't know about Doo. You just can't make the same power out of an equal size/weight V-twin motor as you can with an inline. The V-twins can't rev as far, so they have to rely on torque. Thats fine for a utility sled (which is where those engines belong), but not for a performance machine. Admittedly neither company has tried to classify their 4-strokes as performance sleds, but I'll be curious to see how Polaris tries to sell theirs. It sounds like it falls in with the Cat and a little below the Yamaha 120s.

I'd be interested to see the other companies mate up with bike builders to use their engines. I can't believe Cat hasn't used a Suzuki I-4 bike engine yet. I don't know who Doo would go with...I would really drool to see them mate up with Honda, but I can't see that happening. 1. I think Honda is going to go with their own sled eventually; and 2. The two companies have no other ties, so there is no reason for them to get together. Maybe they could do something with Kawasaki...how about a ZX-11 powered sled? For Polaris, their American offerings are very limited. The only American builder I can think of with anything close to a performance bike is Buell, but the engines are way too heavy, under powered, and would be far too costly. Maybe they could hook up with a Japanese bike manufacturer, but then that would bother the diehard "buy American" sledders.

I'm just waiting to see what the future holds for 4-stroke performance technology. Hey, now that Yamaha has an I-4 performance engine that doesn't use a gearbox, it would be really cool to install into a Honda Pilot or Odyssey for summer fun! I always wanted to do that with my ZRT-800 motor, but I wanted reliability. Hmmmm....maybe its time to start thinking about a new project!

Jim

 

[kenlacy]

Just got the scoop from the local Polaris Yamaha dealer. The new Polaris FST four stroke turbo weighs 568 lbs and has 135hp it is basically a better T660 not in the same league as Apex or Nytro Apex RTX weighs 539 Nytro 533.

The Polaris uses a 750 twin which will still vibrate with probably about 75hp without the turbo and stresses the motor to make 135 with a turbo. This will include some turbo lag plus a loss of reliability over the long haul vs normally aspirated engines.

Apex is looking good.....

Actually the new Pol should come in around 530-540 lbs. And without the Turbo it is est. at 100 - 110 hp.

Sounds like there will be some room to play with the boost but still highly unlikely it will be any comp for the Yamis.

 

[DELTABOX]

The non turbo version will have either 50hp or 84hp one KW hour equal 1.34 HP. The turbo version will have up to 134hp Polaris is claiming 134hp and 568lbs this model is focused on the Arctic Cat T660.


The 37 kW natural aspirated version of the MPE 750 is mainly used in automotive and industrial applications


High performance NA / Turbo version
The MPE 750 with 63 kW is perfectly suited for recreational applications. It emphasizes on high power output between 5000 rpm and 8500 rpm.

Charged with a turbo and intercooler the MPE 750 reaches a power output up to 100 kW.

 

[Bakemono]

I think the 750 turbo will be a real nice sled. As a first offering of a "real" 4-stroke (the Frontier was a joke) I think its pretty good. Id like to see how it runs next winter, lets hope that it is a better runner than the '05 Fusion was (that sled is a dud).
I will be very interested to see how Polaris will try to convince us all that their 4-stroke is better. Im sure they will try to paint the picture that its a featherweight because its a twin and that triples and 4-bangers are "bulky, heavy and slow".
I give Polaris credit, at least they are trying. Thats more than Doo can say...
Hebi

 

[Bakemono]

I think the 750 turbo will be a real nice sled. As a first offering of a "real" 4-stroke (the Frontier was a joke) I think its pretty good. Id like to see how it runs next winter, lets hope that it is a better runner than the '05 Fusion was (that sled is a dud).
I will be very interested to see how Polaris will try to convince us all that their 4-stroke is better. Im sure they will try to paint the picture that its a featherweight because its a twin and that triples and 4-bangers are "bulky, heavy and slow".
Im sure that when the magazines have the shootouts of all the new 4-strokes, after Polaris and Cat get their collective butts handed to them by Yamaha that Polaris will come out and say, "Wait, wait...our 4-stroke is only meant to be a TRAIL sled, not a racer." Sort of like what they did with the Predator. The Predator was getting it's butt handed to it by the YFZ450 and TRX450R so Polaris said, "Oh, lets put reverse on it and call it a TRAIL quad. Then we can classify it with the 660 Raptor and Kawi 700 V-Force, where we know it will clearly be considered the best." (Id like to see Hond and Yamaha put reverse on their 450s and call them trail quads, then what would Polaris say?)
I give Polaris credit, at least they are trying. Thats more than Doo can say...
Hebi

 

[Superfly]

Kinda rough doggin a sled nobody has ridden yet. Kinda like many did to the original RX-1. Rebmember that when you dog the new "guy" with no first hand experience.

BTW a V-Twin four stroke is not necessary a bad combination for a sled, just like it isn't for a bike. RC51, Superhawk, Ducati, SV1000 and the Aprilia's are made by Rotax which is owned by Bombi if I recall correctly.

 

[Bakemono]

I have faith in Yamaha, Superfly. I used to have a lot of faith in Polaris, but they pretty much killed that with too many years of BNGs and new sleds that were overhyped and underperforming....
Hebi

 

[markgyver]

the polaris 750 4 stroke is not a v-twin .its an in line twin like there pwc motor. it made 150 hp with 17-19 lbs boost, in the boat. the sled version runs 14 lbs boost.

 

[Bob Miller]

Are you sure it's a V twin? I thought it was a parallel twin? :?

 

[markgyver]

ITS NOT A V-TWIN.there im done yelling..

 

[Bob Miller]

ITS NOT A V-TWIN.there im done yelling..

That's what I thought :shock: We posted at the same exact time

 

[markgyver]

Yea Bob i figured thats what happened. :shock:

 

[nhrxrider]

ah....sorry...I thought I had read above that it was a V-twin...maybe I was just assuming. That sounds better then. That would have more HP potential with less weight than a V-twin, but it would put more strain on the crank than an I-4, for example, and also wouldn't be quite as well ballanced...but still not bad. I'd like to see pics of the motor...anyone know where there are some? Engine weight numbers would be interesting too, but thats too much to ask.

Jim