Dynamo^Joe
Newbie
- Joined
- Jan 4, 2005
- Messages
- 15
- Reaction score
- 0
- Points
- 451
- Location
- Thunder Bay, Ontario
- Website
- www.mxzx-revzone.com
Hello...
I have looked here...
http://www.totallyamaha.com/snowmobiles ... /Specs.htm
but there is no information for the 2008 models.
Nytro Trail
Primary spring forces -
Flyweight mass -
Secondary spring color and its forces
Pretension -
helix angle -
-------------------------
Nytro MTX
Primary spring forces -
Flyweight mass -
Secondary spring color and its forces
Pretension -
helix angle -
------------------------
I have my hands on 2 nytros, one with a 250hp turbo - heading to revelstoke this week coming up so I want to make some helixes and bring along and go make something better than what is in the sled.
any help with stock calibration details?
thanks
Joey
I have looked here...
http://www.totallyamaha.com/snowmobiles ... /Specs.htm
but there is no information for the 2008 models.
Nytro Trail
Primary spring forces -
Flyweight mass -
Secondary spring color and its forces
Pretension -
helix angle -
-------------------------
Nytro MTX
Primary spring forces -
Flyweight mass -
Secondary spring color and its forces
Pretension -
helix angle -
------------------------
I have my hands on 2 nytros, one with a 250hp turbo - heading to revelstoke this week coming up so I want to make some helixes and bring along and go make something better than what is in the sled.
any help with stock calibration details?
thanks
Joey
Turk
Tech Advisor
nytro fx
60 something grams in the primary
primary spring preload 35kg
total force 118 kg
helix 43 degrees pink yammie secondary spring at 80 wrap
mtx
all i know is 39 degree helix
60 something grams in the primary
primary spring preload 35kg
total force 118 kg
helix 43 degrees pink yammie secondary spring at 80 wrap
mtx
all i know is 39 degree helix
Dynamo^Joe
Newbie
- Joined
- Jan 4, 2005
- Messages
- 15
- Reaction score
- 0
- Points
- 451
- Location
- Thunder Bay, Ontario
- Website
- www.mxzx-revzone.com
Someone over on dootalk asked me how I made out so far...
I posted this....
The company who makes the turbo has their own clutch setup. After one day of running with it and Brett shaking the sled down getting a good feel all day of how it presently runs....the next morning the first thing I did was take turbo company setup kit out, I don't even care what parts they use - I just stuck something in that I brewed up for the Nytro trail sled and shoved it in the MTX.
Friday
At first if the sled was on a steep hill and pointing down on off camber, Brett would need a lot of room to turn around either turn slow back up the hill or crack the throttle and take a big swing to turn and point up. If Brett had to apply throttle to roll the sled on its side and turn 90 degrees quickly, it was difficult and require a lot of body english.
Saturday
What Brett observe after running The YN2 parts (my parts), he could easily maneuver the sled around when running through the trees better than before.
With YN2 parts has better control of the throttle, could run with less throttle up hills that were tricky and technical going around trees while climbing....when stopped and taking a look at where to go next, if Brett had to turn a sharp 90 degree, he would flip the throttle and the sled basically would do more work for him, he did not have to use as much body english and put the sled right on the side either quick enough he would fall on his side or just spin the sled nearly in 180.
Friday - With turbo company setup, Brett would run up a hill at a certain track speed and maybe ratchet the drive sprocket once or twice when landing after going over a drift. Saturday - With YN2 parts, the sled would ratchet several times and had more track speed. Where we were getting 60km/h track speed on 2-stroke jokes, Brett was getting 110km/h track speed...AND ratcheting the track....HAHAHAHA
With turbo company setup kit brett would hit the rev limiter at 9000 rpms
with YN2 parts, Brett would observe the engine stay at 8750 rpms through a 30 second climb and play with the throttle.
Looks like we are planning to go test for 2 solid days in the future.
Brett said the test was good because of this kind of snow [wet heavy] except that even a short track can do good in it because its [set up]
A December/January test will be the best to find something all around or find a choice between 2 types of conditions; because of fluffy snow and cold temperatures keep the snow from [setting up] for days instead of like right now, the snow sets up in a day.
I don't know much about mountains, but am learning by asking questions and getting out there more - There seems to be several types of setup snow "rock hard" and "wet heavy" or wet-heavy with crust underneath to where both you can get super good traction on and do a long pull but the rock hard will reveal really high track speeds and the wet heavy will reveal low track speeds however if you have the power, you can maintain track speed to do a long climb but it just makes clutch temperatures soar right off the scale, you come back after a pull, take a break and open your side panel to cool clutches off.
The other important thing about early testing is "Bottomless" snow where there is no set-up snow underneath.
This YN2 parts may be good right now but maybe not the best in fluff/cold "Bottomless" snow and that is what I have to figure out. Brett is 265 and that sled weighs a TON....After explaining to the guys what job the secondary has to do [clutch theory lesson] all those guys figure that the best time to test would be in the fluff months to deal with calibration that works good from starting off to low track speeds .
IF Brett can get the sled to move with good throttle control and not trench in the early season powder
THEN I will have a home run for a clutch kit.
My goal is to learn the different types of snow and then find an overlap to which a clutch setup will work all around or can change one part if wanting to get picky with a setup for that day.
I never been on a trail sled that pulled that hard. good gawd!
I posted this....
The company who makes the turbo has their own clutch setup. After one day of running with it and Brett shaking the sled down getting a good feel all day of how it presently runs....the next morning the first thing I did was take turbo company setup kit out, I don't even care what parts they use - I just stuck something in that I brewed up for the Nytro trail sled and shoved it in the MTX.
Friday
At first if the sled was on a steep hill and pointing down on off camber, Brett would need a lot of room to turn around either turn slow back up the hill or crack the throttle and take a big swing to turn and point up. If Brett had to apply throttle to roll the sled on its side and turn 90 degrees quickly, it was difficult and require a lot of body english.
Saturday
What Brett observe after running The YN2 parts (my parts), he could easily maneuver the sled around when running through the trees better than before.
With YN2 parts has better control of the throttle, could run with less throttle up hills that were tricky and technical going around trees while climbing....when stopped and taking a look at where to go next, if Brett had to turn a sharp 90 degree, he would flip the throttle and the sled basically would do more work for him, he did not have to use as much body english and put the sled right on the side either quick enough he would fall on his side or just spin the sled nearly in 180.
Friday - With turbo company setup, Brett would run up a hill at a certain track speed and maybe ratchet the drive sprocket once or twice when landing after going over a drift. Saturday - With YN2 parts, the sled would ratchet several times and had more track speed. Where we were getting 60km/h track speed on 2-stroke jokes, Brett was getting 110km/h track speed...AND ratcheting the track....HAHAHAHA
With turbo company setup kit brett would hit the rev limiter at 9000 rpms
with YN2 parts, Brett would observe the engine stay at 8750 rpms through a 30 second climb and play with the throttle.
Looks like we are planning to go test for 2 solid days in the future.
Brett said the test was good because of this kind of snow [wet heavy] except that even a short track can do good in it because its [set up]
A December/January test will be the best to find something all around or find a choice between 2 types of conditions; because of fluffy snow and cold temperatures keep the snow from [setting up] for days instead of like right now, the snow sets up in a day.
I don't know much about mountains, but am learning by asking questions and getting out there more - There seems to be several types of setup snow "rock hard" and "wet heavy" or wet-heavy with crust underneath to where both you can get super good traction on and do a long pull but the rock hard will reveal really high track speeds and the wet heavy will reveal low track speeds however if you have the power, you can maintain track speed to do a long climb but it just makes clutch temperatures soar right off the scale, you come back after a pull, take a break and open your side panel to cool clutches off.
The other important thing about early testing is "Bottomless" snow where there is no set-up snow underneath.
This YN2 parts may be good right now but maybe not the best in fluff/cold "Bottomless" snow and that is what I have to figure out. Brett is 265 and that sled weighs a TON....After explaining to the guys what job the secondary has to do [clutch theory lesson] all those guys figure that the best time to test would be in the fluff months to deal with calibration that works good from starting off to low track speeds .
IF Brett can get the sled to move with good throttle control and not trench in the early season powder
THEN I will have a home run for a clutch kit.
My goal is to learn the different types of snow and then find an overlap to which a clutch setup will work all around or can change one part if wanting to get picky with a setup for that day.
I never been on a trail sled that pulled that hard. good gawd!
satan660
Extreme
great.. cant wait for mine lol keep up the good work 
