R4 compressor propeller for SVHO (14+)

Compressor propeller model R4, from Riva Racing for Yamaha SVHO jet ski

Reference: RY17080-SCI-R4

The next generation “R4” supercharger turbine for the Yamaha SVHO engine delivers incredible power and torque across the entire rpm range. The all-new blade design produces increased boost pressure and airflow, resulting in excellent acceleration and top speed.

Precision machined from billet aluminum to exact tolerances and anodized to prevent corrosion. Installs quickly and easily into the stock compressor housing. Includes detailed installation instructions.

Main features:
More acceleration and top speed
Constructed with 2618 US forged aluminum
Precision machining does not require “old school” post-production balancing
Anodized to prevent corrosion
Made in North America
NOTE: For use with Level 3 and above modifications. Requires use of aftermarket engine management system and supercharger shaft upgrade kit.

Boost performance:
8.5 psi at 6,000 rpm
11.75 psi at 7,000 rpm
16 psi at 8,000 rpm
19.5 psi at 8,500 rpm
22 psi at 9,000 rpm
25 psi at 9,500 rpm