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While not a big concern for stock skis, If you modify the ski for more RPM and more boost then there are two issues that cause some concern.
One issue is on 2015 and newer skis the supercharger gear is pressed on the shaft and can move causing damage to the supercharger.
If you are going to modify your 2015 or newer ski to turn more RPM then it's a great idea to upgrade the supercharger shaft.
If you install a higher boost supercharger impeller then you must also upgrade the supercharger shaft.
There are two options. Either the R&D shaft, or Riva supercharger shaft upgrade. You can save 10% off either option in the GreenHulk Store, by using the discount code: greenhulk
The second issue is the 2013 & newer supercharger front housing. (2012 and older housings need not be concerned)
The front housing is 2 pieces and has the volute pressed into the outer housing. There are known cases where the volute moves back and makes contact with the supercharger impeller causing damage. It's a good idea to drill and tap the front housing and install a set screw as shown in the below pictures to prevent the front housing pieces from moving apart.
Hope this helps!
Jerry
One issue is on 2015 and newer skis the supercharger gear is pressed on the shaft and can move causing damage to the supercharger.
If you are going to modify your 2015 or newer ski to turn more RPM then it's a great idea to upgrade the supercharger shaft.
If you install a higher boost supercharger impeller then you must also upgrade the supercharger shaft.
There are two options. Either the R&D shaft, or Riva supercharger shaft upgrade. You can save 10% off either option in the GreenHulk Store, by using the discount code: greenhulk
 |
RIVA SVHO/SHO Supercharger Shaft Upgrade Kit Our Super-Duty GEN-3 Supercharger Shaft Kit provides the ultimate in reliability for high boost applications. Kit features a revolutionary hydraulic... |
RY17040-UK-6S5-3 | $494.95 |
 |
R & D Yamaha Billet Supercharger Shaft Kit R&D's new High Performance Billet Supercharger Shaft eliminates the weak design features of the OEM and aftermarket HKS supercharger shafts. After... |
612-25020 | $339.95 |
The second issue is the 2013 & newer supercharger front housing. (2012 and older housings need not be concerned)
The front housing is 2 pieces and has the volute pressed into the outer housing. There are known cases where the volute moves back and makes contact with the supercharger impeller causing damage. It's a good idea to drill and tap the front housing and install a set screw as shown in the below pictures to prevent the front housing pieces from moving apart.
Hope this helps!
Jerry
Attached Files
73.6MPH so far
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