Superchargers for Yamaha Nitro

rknight111

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Im looking into a Supercharger instead of a turbo for the next sled I wish to purchace. The Supercharger because there is no lag.
Here's what I found, Mountain Performance Stage 1 Kit:
Stage I Performance:
Stage I kits are intended for a maximum of 11 PSI (slightly less at extreme altitudes over 10,000 ft). At 10 to 11 PSI we recommend all models use a 50/50 mix of Premium Gas (92+ R+M/2 Octane) and Race Gas (110+ Motor Octane) - or better yet 100% race gas. Kits can be run at 5-7lbs of boost (recommend 5psi at sea level). Each pound of boost is equal to approximately a 10HP increase, so when decreasing boost to run pump gas, you can apply that information to determine HP. Stage 1 Nytro produces 220HP at 11PSI. The Phazer kit ships at 140HP at 11pounds of boost. The Apex is shipping at 240+HP at 10 pounds of boost. The RX-1 boasts a consumer friendly 230+HP also at 10 pounds of boost. Vector Stage I is well in excess of 200HP at just over 10 pounds of boost. For those desiring more power, numbers in excess of 270 to 350+HP is coming on Stage II and Stage III.





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rmk800

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i have seen stage 2 superchargers for the nytro with about 260 hp , just can't remember which site now. i'll get back to you on that
 

catmando

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Its a Yamaha,better go Stage 2 LOL!
catmando!
 

rmk800

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find that site- it was mountain performance - stage 2 at 16 psi of boost gives you 280 hp
 

lightweight

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just remember the supercharger will not compensate for altitude. and a properly set up turbo has very little lag. Just trying to help.
 

Sledderglen

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Ron, talked to a rider on sun afternoon that has a supercharger on his Nytro. He had it done in Edson at dealership. He said it works very well but had a warranty issue that day. Seems a blower pulley on the crankshaft came loose and spun on shaft. Dealer was very interested and said easy fix. On the supercharger system you can run 2 different boost levels. 1 mild on pump gas for about 170-180 HP or full boost for 230+ HP but for that you need to premix race fuel 1/2 and 1/2. He runs at full boost and is claiming track speed around 125 KM. Has no problem going places. :twocents: with boost sounds like a great sled yes a little heavy but thet all are when stuck.
 
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dieselmech_22

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E & S motorsports in fort sask. had two in thier shop last week getting superchargers they had one nytro they did a 163" track on and they figured they would be 300+ ponies when they were done that would be interesting to see! The mechanic out there said he has done a bunch of turbo's and superchargers already this year on the nytro's he is pretty knowledgable when I have talked to him and not a bullsh*tter he might be a really good guy to talk to for info!
 
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Buster

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I agree with dieselmech_22, go with E&S for all your set-up needs-these guys rock.
 

Summitric

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Good Way To Go..... Supercharge It!!! Unfortunately I Pulled One Down Out Of Clemina On Friday, That Quit On The Guy On The Way Up--- Had Antifreeze On The Ground And He Figures He Popped The Motor???.... I Felt Sorry For The Guy, As He Was There By Himself, And Said All His Buds Were Coming Out The Next Day, And He Was Gonna Just Doo A Little Test And Tune Before They Got There. Guess It Can Happen To Anyone:(
 

glengine

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Yah. But i have also heard from a guy that has a supercharged nytro that they don't just work flawless. His runs not bad up the mountain but once in a while he likes to go tourin down here, and he can't cause it's way to lean.. It was a kit that was installed by E & S.. They seem to be good guys to deal with though.. They said that there is a fuel system upgrade for the nytro's from yam. But he said that his buddy who also has a nytro schaged got 40miles out of a tank of gas and he ran out, they had to go get more fuel.. That is some REALLY poor fuel economy...
 

rmk800

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i seen on one of the site, they said they are building a 40 liter tank for nytros. one of the turbo site, i think maybe mountain performance
 

shiznitt100

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my friend has or had (now damaged bad) a sc apex. absolutly loved it.. nothing bad to say about it, climbed hard and was excellent in trees and boon docking. he did not mention anything about a huge loss in fuel milage but he did not drive sled much before it was charged... aslo his friend had same mods (stage 1) they did not run race fuel nor a head shim, 1 of the 2 sleds started to smoke bad, burnt piston (not sure yet still at tare down).

i am looking at sc for the apex aswell,

pros as far as i can see
less heat
less cutting and bs with bolt ons
no lag at all
do not need to remove gas tank and replace with smaller one
less money by a few grand

cons
more weight in the nose
less fuel econmy(by reports)
more motor wear and tare as always on the boost
belt tension a must watch
no altitude compensators
always tinkering with fuel mapping (if i am not mistaken)
less power by 10 %


i have also seen and heard alot of turbos have been blowen up by user unfriendlyness (not turning down boost at different altitudes)

please if i am wrong in any of these items let me know as i am trying to decide myself if its a sc or turbo. i am not much into climbing just like thrashing and having fun.


hope this small research helps some
 

Modman

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..... But he said that his buddy who also has a nytro schaged got 40miles out of a tank of gas and he ran out, they had to go get more fuel.. That is some REALLY poor fuel economy...

I think its more of the small tank that creates the illusion of added fuel consumption, not that bad of fuel economy. I have ridden with a forum member on a non-boosted 08 Nytro last year, he didn't use a lot of fuel, but couldn't dump in a full jerry can at a time. He used about 1 1/2 jerry cans to my 2 1/4. I was running rich too so I probably would have only used about 2 if I had jetted down. And we weren't stopped for very long and rode for almost 6 hrs playing and climbing. His seemed comparable to about what a good running 700 would use IMO.
 

TomKat72

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Go to the Totally Yamaha 4 Stroke web site where this is covered in depth. Also look for posts by HAMMER, he has a supercharger and is very educated in the blower science. Below is a link to the TURBO/SUPERCHARGER section of that site. One thing you should keep in mind if you travel a lot to ride areas that are at extreme elevations from each other, is that the supercharger [SC] uses belts/pulleys to acheive it's boost numbers. You could have some issues with too much boost if you are running 10-12 pounds of boost at 6000' (with no engine mods= low compression pistons, stacked head-shims, "carillo" rods, etc.) and go down to 0'-4000' of elevation. You can only run approximately 5 pounds of boost at the lower elevation on a stock motor safely. You can however change pulley diameters to accommodate for this. That is one such way that a turbo is nicer as it is easier to adjust for extreme elevation changes. But, if you run at elevation that don't differentiate that much, you shouldn't have any issues or lag. There are other PROS & CONS to both of them and you should check into it so you can choose the best for you. Myself? I plan to go with the SC as it's PROS work for me and my type of riding. I hope this helps and good luck!!
 

shiznitt100

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i just buoght the 240hp sc kit from a guy on snowest was a good deal. i am looking at the head shim not the pistons as i just do not feel like the tare down and removal of the motor,two of my friends had same kit and they ran just pump gas,1 of the 2 detenoated and did some motor damage. so i think race gas and head shim, i should be ok at all elevations. any input would be great as i am new to this.. but i have blown stuff up in the past lol. i tryed to get signed into total yam but it did not work will try again later. thanks colin
 

Lashcat

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just remember the supercharger will not compensate for altitude. and a properly set up turbo has very little lag. Just trying to help.

[edit] Altitude effects

A Rolls Royce Merlin engineSuperchargers are a natural addition to aircraft engines for operation at high altitude. As an aircraft climbs to higher altitude, the pressure of the surrounding air quickly falls off. For example, at 5,486 m (18,000 ft), the air is at half the pressure of sea level. As a result, the engine produces half as much power, but the airframe only experiences half the aerodynamic drag.

A supercharger compresses the air back to sea-level pressures, or even much higher, in order to make the engine produce just as much power at cruise altitude as it does at sea level. With the reduced aerodynamic drag at high altitude and the engine still producing rated power, a supercharged airplane can fly much faster at altitude than a naturally-aspirated one. The pilot controls the output of the supercharger with the throttle and indirectly via the propeller governor control. Since the size of the supercharger is chosen to produce a given amount of pressure at high altitude, the supercharger is over-sized for low altitude. The pilot must be careful with the throttle and watch the manifold pressure gauge to avoid overboosting at low altitude. As the aircraft climbs and the air density drops, the pilot must continually open the throttle in small increments to maintain full power. The altitude at which the throttle reaches full open and the engine is still producing full rated power is known as the critical altitude.

You do not have to worry about altitude on a fuel injected machine. That is why EFI is so great. Just my $.02. Supercharge it
 
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