180 hp nytro vs stock 800 class

[dmkhnr]

So, I'm not being a smart@ss, just contemplating buying a 4stroke (cat,yami) for next season and want to know how a turbo nytro compares to a stock 800.
The stock 800 class has come a long way this past season, it used to be that you had to buy a new m8, throw a pipe/fuel box, clutching, and lightweight parts at it, and you were on a pretty good machine for $12k+. Now you can buy a stock 800 be it pol,cat,doo, and right out of the box they are outperforming or right with the 2009/2010 high dollar mods. These machines are light and dialed in. So where does the yami turbo fall in when compared.
Obviously, the 180hp is going to smoke a stock 150-160hp sled, but with a 130# weight difference, I don't think it will be by more than 10-15 ft on a deep powder climb, if not dead even. How much weight can easily be taken off the nytro while being cost effective, or do it yourself? Would you trust a yami dealer who has never done a turbo to install one of these $1500 turbos? Will the sled be 180 hp at 7-10k elev? Will it still have a warranty?

 

[Turbo11T]

I think the real thing to remember is that 180 hp at elevation is going to walk all over a 2 stroke that is even rated 160hp at sea level. The weight is not so much an issue. Take a 140lb guy and a 260 lb guy on the same sled. I don't think that the weight makes a big deal. At 10000ft your going to have at least 45 hp more than the 2 stroke guys with a pipe and can. I would guess make about 20 mph more track speed as well. That alone is huge.

As for installing the kit I would think that if yamaha is warranting it then it must be hard to screw up. I think both the super and turbo look very straight forward to install. I personally wish that they weren't requiring dealers to install the kit. But i would guess it is a warranty deal.

Also you can cut 30 lbs off a nytro easily with some money.

 

[noob]

turbo'd yammi, cat or two stroke is going to flat out spank a stock 800 sled. you might be 10-15 foot up on a high mark half throttle.

 

[TRUEBLUEMAX]

First off there I not 130 lbs difference. Look at the comparison that American snowmobiles did. The poo is the lightest and it is about 65 less than the yamaha.

A 160 hp sled at 8000 feet is only making 120 hp so the yamaha with half again as much power will make a huge difference. Boost at elevation is huge!

 

[SLY]

The 180 turbo's from MCXpress on Yamaha's will embarass the stock 800's, especially at altitude. At 7000 feet an 800 that makes 160hp at sea level will only make about 125hp(3% per 1000') and the turbo will still be making 180hp (assuming it's an MCX) There is a rear suspension arm kit from Yamaha that drops 25lbs, lw battery will get you 10 and there's lots more. Get it installed and setup by someone that has some experience.

 

[dmkhnr]

O.K. I understand the turbo and altitude (my pro is a turbo). I'm worried about the weight as my turbo pro at 6# roughly 180 hp and a 125# of extra weight isn't going to himark a stock 800 sled in 4' of powder. It would be like having my wife sit on the hood.

What does a turbo yami weigh ready to ride? Do you have to fuel it to the brim like you would a 2 stroke?
65# is not a huge deal, especially if I can take 20-30# off easy. I say 130 cause the cat is supposedly 565 dry, and the pro is 439 dry.

Keep it real guys!!!

 

[dmkhnr]

Pro 163 curb weight 458#, and full of fuel ready to ride 530#

I saw something on the nytro and don't know it's accuracy Nytro MTX curb weight 565# 10 gallons of fuel make it 625# Does this sound about right?

 

[KJFarmer]

My 2010 SE 162 is 550 dry, so about 610 wet, So far Kmod rear skid dropped 19lbs and timbersled front suspension dropped 9lbs. Will get more info up when i get my turbo and tunnel installed, also will get full total weight once its all done.

 

[justinkredible56]

Pro 163 curb weight 458#, and full of fuel ready to ride 530#

I saw something on the nytro and don't know it's accuracy Nytro MTX curb weight 565# 10 gallons of fuel make it 625# Does this sound about right?

http://www.youtube.com/watch?v=9W7C54TXQLc
Shows the wet weight of a 153 at 601 along with the we weights of the other brands.
Also nytros only have a 7.5 gallon tank. Hope this helps!

 

[stuck a lot]

With my 180 supercharger, I am right at 600. I have shed about 30lbs with minor mods and next on the list is a Timbersled Skid which aparently drops another 38. That will leave me just under 570lbs wet.

Rode it double with my wife and had to throttle down on a hill climb before shooting out the top. The stock 800 dragon we were with could barley pull the hill.

 

[live2beel]

I am on the fence also to try a 4 stroke. So what does a stock 162 nytro weigh with a turbo on it? I would just like to add fuel and ride. What is the hp max for these things to keep great reliability with out having to mess with the motor( head shim, fuel system,etc.).

 

[seano700]

Stock?

A bunch of us spent the weekend in the mountains. We are a group of about 10 yami's of all different flavours and mods.. The sled that impresed us the most was the 2011 162 Nytro, not a 2008-2010 but the 2011. This was a shop demo sled clutched for high elevation, stock everything else. We met up with a bunck of other riders and they all thought he had a turbo based on where he could go. I wouldn't discount a stocker.. Again a new stocker not an original.. I have the 2008 and its like riding a grader compared to the 2011!

 

[KJFarmer]

Mines the 2010 and i really liked it when i rode it stock, heard from a lot of guys saying i would hate it but all of them rode th 08-09's. Not sure whats changed on the 2011's but im sure there just as good or better.

I think if it would of had a better track than that maverick it could of come close to climbing with the stock 800's, i would just always trench before anyone else.

Also i believe you do not have to open up the motor for the 180 kit, and heard there very reliable. I think any higher than that you may have to either run race fuel or put a head shim on, but once you try 180 your just going to want to have more!!!

 

[justinkredible56]

I am on the fence also to try a 4 stroke. So what does a stock 162 nytro weigh with a turbo on it? I would just like to add fuel and ride. What is the hp max for these things to keep great reliability with out having to mess with the motor( head shim, fuel system,etc.).

With a turbo the wet weight is about the same as stock because you get rid of the exhaust and replace it with the turbo. With the MPI supercharger I've heard that you can get 220 by just upgrading a few things (pulley, intercooler, fuel controller re-flash) all on pump gas.

 

[nytro circus]

just my 2 cents but i own a stage 2 mpi s/c and love it but was over in enterprise today and rode the 180 mpi kit and was very impressed with the responsiveness and the feel of the new chassi and i have riddin alot of alot of new sleds this year and that would be my first choice if i had to start all over again

 

[christopher]

This might be of some value in this guy's thought process about buying a boosted Nytro...


COPIED FROM PREVIOUS POST.
http://www.snowestonline.com/forum/showthread.php?t=264215


So, on Friday, while I was in Alpine Wyoming test riding a couple new suspensions for the Nytro I got a call asking if I would like to take out a pair of supercharged Nytros for a day of test riding. Obviously you never say no to this kind of opportunity.

The Yamaha rep dropped off a trailer with two new Nytros on it.

One had the new "OEM" MPI supercharger on it that puts out 5-6psi/175HP, and the other had the MPI Stage 2 Supercharger that puts out 15psi/280HP


For comparison..
Stock = 130 HP
OEM Supercharger = (+45hp) or 175HP
Stage 1 Supercharger (+90hp) or 220HP
Stage 2 Supercharger (+150hp) or 280HP



As many of you know one of the primary reasons that I choose the Nytro in the first place was my desire to be able to add forced induction to the engine down the road without worrying about grenading it in the process. Of all the mountain sleds on the market, the Nytro is hands down the most "boostable" sled out there.

I started off the day on the OEM SC sled.
From the moment that I started the engine and moved the first 10ft off the trailer I could tell there was a significant difference. One of the things I have really had to work on with my SE was throttle control, learning to place my thumb exactly in the right spot to get the Nytro to do what I want. Given time your thumb "learns" exactly where it needs to be to get the sled to creep along at 3mph in the parking lot as you come around the from one side of the trailer to the other. Placing my thumb in the same position resulted in the sled moving faster and more vigorously than I expected. In short, I was surprised.

The engine has a more robust solid sound to it. Not that the normally aspirated Nytro sounds bad, but its a lighter more hollow sound than with the supercharger on it. This one is hard to describe, but the engine sounds denser, more beefy, and this is NOT an exhaust sound, but the mechanical sounds coming from the front of the sled. In short, its a very pleasant sound!

It only took me a few minutes to make the adjustment from my aspirated sled to this supercharged one. The power is absolutely SILKY SMOOTH from minimum throttle to Wide Open. There is no place on the power band that feels lacking, and the power is always right there. No delay, no hesitation at all. You push on the throttle, and as the engine itself spins up so does the power in a really linear manner. More than anything else it feels like you have a 4th cylinder running, as though the whole engine was pulled and replaced by a bigger, stronger, harder pulling engine.

I can't say how many times I have thought that what my Nytro needs more than anything else is another 30-40hp. When I am in fresh powder I often run the engine at WOT, and wish I had a little bit more. When I hill climb, I am running at WOT and wish I had a little bit more to call on. This OEM Supercharger that Yamaha has MPI building is EXACTLY what the stock Nytro needs.

The extra 45hp is PERFECT for all normal recreational "FUN" riding.!! I don't think there is anyone who owns a stock Nytro that would be unhappy with the performance of this SuperCharger, unless your into big time hill climbing, or running in very deep powder on a regular basis. For general riding/boondocking this sled was a JOY TO RIDE. It's hard for me to convey how nicely behaved the extra power was.

Top speed was right at 90mph as well, which makes it no slouch.


Now, let me contrast that with the MPI Stage 2 Supercharger.

HOLY COW, what a HUGE difference!
The Stage 2 sled was a totally different ride.
While the two sleds were basically identical, the performance couldn't have been more different!
This thing had a visceral power to it that was begging you to let it loose.
It WANTED to take off.
It was like being on a thoroughbred horse that wanted to run, but you were pulling in the reigns and holding it back.

Pick your line on the mountain, point the nose, push the throttle and HOLD ON FOR THE RIDE, because she was going up, with or without you!! When you opened up the throttle, you HAD TO HOLD ON or the sled would take off without you. Seriously, the pull from the acceleration was awesome. It felt like the sled was going to take off out from under you and leave you behind (which it did for me once when I made the mistake of hitting the throttle at the wrong moment).

At 90mph, with both sleds side by side, I could throttle up the engine to 100% and just leave the other sled behind like it wasn't even there.

For the 4 hours or so that we rode these two sleds today in Island Park, we never found a mountain that we could open up the Stage 1 to 100% for a long climb. The hills we were playing on were just TOO small. The darn sled would be accelerating all the way up the mountain and we would have to let off on the throttle well before max boost was ever achieved. This engine has some serious legs and wants to be in the STEEP and DEEP where it can breath deeply and really run. Mostly what was happening was a long series of short blips to the throttle all the way up the hillside. This sled would be perfect for a place like Cooke City with huge open hillsides of chest deep powder!

I had never been on a sled that could pull a wheelie before, and its a heck of a sensation to hit the throttle and feel the front end of the sled come up and off the ground. With only 2 full seasons of riding behind me, I could get into some serious trouble with this!!

One more thing that was really striking between the two sleds.
FUEL CONSUMPTION.

This came as a real suprise to us today. The stage 2 sled burned a LOT more fuel than the OEM one did. For the same day's riding, the stage one burned 2-3 bars more gas than the OEM did. I have not filled up the two sleds yet to know the exact number of gallons, but we had to call the day after only a few hours because we were down to two bars on the stage one and still had to get back to the trailer. I can clearly see why guys with the big blowers upgrade to the larger fuel tanks and often carry a spare can as well. That smile that you can't wipe off your face comes at the price of an extra few gallons of gas burned on every trip.

All in all it was a terrific day.
Both sleds were incredibly fun to ride, and both behaved VERY differently.

My guess is that Yamaha is going to sell a TON of the new OEM supercharged sleds!

And for those more seasoned riders who need the extra power, you can't beat the stage 2 kit from MPI. I have new found respect for those who can pilot that rocketship!

 

[tmk50]

Mines the 2010 and i really liked it when i rode it stock, heard from a lot of guys saying i would hate it but all of them rode th 08-09's. Not sure whats changed on the 2011's but im sure there just as good or better.

2010 and 2011 MTX SEs are the exact same sled from the factory - except for the stickers.

The notable changes for 2012 are -track, seat, extroverts, and skis.

 

[stuck a lot]

Stickers can make it or brake it!

 

[Fireman35]

The more stickers the faster it goes... Haha,

 

[Fireman35]

So Chris which one you gonna have 180 or you going Big ?