Riva Racing 400hp Turbo Kit for the Yamaha 1.8L Engine
Riva Racing is now selling a 400hp turbo kit for the Yamaha 1.8L engine that powers the high-performance FZR, FZS, VXR, VXS as well as the luxury-performance FX models.
Riva 310 HP Kit for the Yamaha 1.8L Supercharged SHO Engine
Riva Motorsports offers an aftermarket kit that increases the horsepower of the Yamaha 1.8L Supercharged SHO Engine to 310HP. The Yamaha SHO engine is available in the Yamaha FZR, FZS, FX Cruiser SHO and FX SHO WaveRunners. Riva's Dave Bamdas explains how the kit works.
Yamaha FZR SHO 400HP+
A modified SHO stage 3 conversion 2010 model on normal pump gas (93RON) and no ecu mods done all home baked! put that in ur pipe ! I roughly measured the acceleration speed at 0 to 82 mph at 3 sec ,mods done to improve handling stock pump but new Riva Racing impeller. The 1/8th mile in about 6 seconds ! We have done a hundred hours on this ski and it still has not given any problems ,build to last!