|Valley Engineering, LLC
was formed in 1998 to manufacture and sell prop speed reductions units for VW engines.
These PSRU's have undergone ten years of research and development. The
company is a father and son partnership between Gene Smith, mechanical engineer and
retired crop duster, and his son, Larry Smith. These units were designed and developed to
meet the performance needs of their ultralights, trainers and light planes they had been
building since 1993. Testing showed these reduction units to be very strong and
lightweight, yet they yielded outstanding and unmatched performance.
We are proud to
introduce our new Series 3 poly-v reduction units specifically designed for the
high-power engines available in our Premium Engine packages. This new drive comes in wide
range of ratios, making it easy for us to custom design the drive to fit your aircraft's