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Yamaha: Boosted Sleds (Turbo or Supercharged) Turbo discussion for Yamaha aftermarket Turbo or Super Charged sleds.
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Old 08-20-2016, 01:55 AM
ChargedTTq ChargedTTq is offline
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Default Max power 3 cyl builds. (Nytro/Viper)

Hi, I'm trying to do some research on what goes into the maximum horsepower builds for this Yamaha 3 cyl, and what kind of numbers people are achieving. I was hoping you guys could point me in the direction of some build threads, YouTube dyno vids, Facebook posts...

Hopefully with things like dynoed horsepower and boost psi numbers, what motor work done, cams, rods, pistons, head work, ect ect.

Also if any of you know of some really aggressive non turbo builds I'd be interested in how those are built and how much power they make too.

Thank you!
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Old 08-20-2016, 08:05 AM
Motorbreath_ Motorbreath_ is online now
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What are you hoping to achieve? Drag sled? Mountain sled?

Right off the bat there are many 270 horsepower turbo kits available that are just basically bolt on. Are you looking for more than that?
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Old 08-20-2016, 02:09 PM
icr icr is offline
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I think there was a guy racing a NA nytro claiming around 180hp but there was a lot done to that motor including removing the counter balancer.

xtreme motorworks has a built nytro motor in a quad that's around 450hp if I remember right.
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Old 08-20-2016, 03:03 PM
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Quote:
Originally Posted by Motorbreath_ View Post
What are you hoping to achieve? Drag sled? Mountain sled?

Right off the bat there are many 270 horsepower turbo kits available that are just basically bolt on. Are you looking for more than that?
It's actually for some YXZs. So while 270hp is intense, it's not nearly as crazy as a 270hp snowmobile.

The guys who are looking for this info are going to be doing drag racing and some of them (including me) doing short course racing.

So obviously sky's the limit for the drag guys, that's why I said MAX horsepower. Basically whatever the heads/block/crank can handle before the laws of physics just make things insanely expensive.
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Old 08-21-2016, 06:48 AM
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http://www.hurricaneperformance.ca

Give Dave a call. He should be able to answer all your questions.
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Old 08-22-2016, 01:13 AM
bholmlate bholmlate is offline
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This one has a little bit of power

https://youtu.be/MoiayKsssuE


Last edited by christopher; 08-28-2016 at 05:16 PM.
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Old 08-23-2016, 01:13 PM
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In theory its pretty easy to put out big numbers, putting the power to the ground and reliable are where it gets hard. Our drag Nytro is Carrillo rods, Cp pistons, ARP hardware, CNC porting, +1 valves, spring kit, Garrett 3076 and its getting a Motec ecu at the moment....
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Old 08-28-2016, 04:05 PM
BigFish BC BigFish BC is offline
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my nytro is ported & polished new cams, rods, pistons,head studs & ringed head.
have ran it at 20lbs with boost it kit 2871,to say its a bit retarded for most riding is a understatment lol.
i run it at 14lbs & it will go up anything at that & with the 174 x3 inch track tries to rip your arm off,shoulder ache after a day on it & not from the weight.
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Old 08-28-2016, 11:50 PM
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The RMSHA hillclimb guys were getting 180-190hp out of their improved stockers. That's what I was told when quizzing the guys a few years ago when they ran the Nytro chassis.


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Old 08-29-2016, 09:31 PM
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Old 08-29-2016, 11:54 PM
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Old 08-30-2016, 09:27 PM
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Old 08-31-2016, 02:19 PM
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