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Racing Edition Stage 1 Performance Overview

This modification delivers the maximum level of performance (+3~4mph) through easily installed air intake, exhaust, and pump enhancements. No internal engine modifications are required.

RIVA Performance Power Filter is installed. Kit replaces restrictive factory intake system delivering improved throttle response and top-speed.

RIVA Intake Manifold Upgrade Kit is installed. Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold enabling engine to produce more horsepower through increased air flow and boost pressure (+1lb).

RIVA Free Flow Exhaust Kit is installed. Kit replaces restrictive sound suppression system located between water box and hull exit reducing backpressure and engine operating temperatures.

RIVA Pump Seal Kit is installed. Location specific molded inserts are siliconed in to the voids of the OE transom plate and RIVA Top-Loader Intake Grate significantly reducing cavitation.

RIVA/Solas 'R'-Series DynaFly Impeller is a special performance impeller offered exclusively by RIVA and RIVA authorized dealers. Built by Solas, this impeller delivers the ultimate in performance for the FX-SHO. Inner hub is machined allowing impeller to mount closer to vein housing for reduced cavitation and more top speed. Impeller blades are digitally calibrated to RIVA's uniform pitch specifications. Impellers are then dynamically spin-balanced at high RPM. A precision factory blueprinting process is performed far exceeding any "prop shop" services available. Includes Billet Impeller Cone for maximum performance and durability.

RIVA Top-Loader Intake Grate & Performance Ride Plate are installed. Our ride plate and intake grate combo increase top speed and significantly enhance handling characteristics. Prop spin and cavitation found with the stock grate is greatly reduced along with the modified FX-SHO's tendency to drop on its nose when the throttle is let off at high speeds.

NOTE: RIVA Performance Kits intended for competition use only.

Racing Edition Stage 2 Engine Kit (OEM ECU) Performance Overview

This Stage 2 Engine Kit produces 255 horsepower @ 7,600rpm utilizing stock ECU and fuel injectors. Kit delivers major acceleration and top speed and runs reliably on 91~93 octane pump fuel. Installs easily and requires no internal engine modifications.

RIVA Performance Power Filter is installed. Kit replaces restrictive factory intake system delivering improved throttle response and top-speed.

RIVA E1 Supercharger Impeller is installed. This high performance replacement impeller delivers more horsepower and torque throughout the entire RPM range. Investment cast from extremely strong, lightweight proprietary aluminum and CNC machined to ensure exact tolerances. Sophisticated blade design is optimized aerodynamically & precision balanced to provide smooth operation. Installs easily into stock supercharger housing with no additional modifications required. Produces 12psi of boost in our Stage 2 Engine Kit.

RIVA Performance Blow-off Valve Kit is installed. Improves performance and reliability by relieving unwanted pressure during off-throttle operation reducing supercharger clutch wear and eliminating heat soak in discharge tube.

RIVA OEM Intercooler Upgrade Kit is installed. Billet aluminum spacers increase end tank capacity & water flow making stock intercooler dramatically more efficient increasing horsepower through reduced air exit temperatures. Features billet High Flow Pump Strainer that allows additional cooling lines to be added to intercooler without tapping into stock cooling systerm.

RIVA Intake Manifold Uprade Kit is installed. Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold enabling engine to produce more horsepower through increased air flow and boost pressure (+1lb).

RIVA Fuel Pressure Regulator Kit are installed. Kit provides increased fuel pressure necessary to compliment RIVA Boost Clamp. Set at an optimal static 55psi and configured for rising rate (@ 1:1 ratio) for our Stage 2 Engine Kit, the unit can be precisely adjusted to match the needs of your riding conditions. Plugs directly into original fuel system with OEM connectors and features a large 3/8" fuel return line that is routed through supplied rubber fuel tank cap. Includes integrated liquid-filled pressure gauge and billet Fuel Pressure Regulator Block-Off necessary for removal of stock fuel pressure regulator in fuel tank.

RIVA Boost Clamp are installed. Simple plug-in device controls communication between stock MAP sensor and stock ECU allowing you to run up to 17psi of boost when used with our Fuel Pressure Regulator Kit.

RIVA Free Flow Exhaust Kit is installed. Kit replaces restrictive sound suppression system located between water box and hull exit reducing backpressure and engine operating temperatures.

RIVA Engine Cooling Upgrade Kit is installed. Kit delivers dramatically improved cooling efficiency to engine and oil cooler for increased reliability & performance. Greatly enhances water flow & pressure by replacing restrictive OEM water fittings with high-flow billet fittings and superior routing.

RIVA/Solas Engine Breather Upgrade Kit is installed. Kit eliminates power-robbing crankcase emissions from your engine's air intake. Increases horsepower by removing the engine's requirement to burn relatively non-combustible oil. Also improves intercooler efficiency by preventing the oil sludge coating that lowers thermal efficiency.

NOTE: RIVA Performance Kits intended for competition use only.

Racing Edition Stage 2 Engine Kit (RIVA ECU) Performance Overview

This Stage 2 Engine Kit produces 275 horsepower @ 8,300rpm utilizing our Athena ECU and stock fuel injectors. Kit delivers major acceleration and top speed and runs reliably on 91~93 octane pump fuel. Installs easily and requires no internal engine modifications.

RIVA Performance Power Filter is installed. Kit replaces restrictive factory intake system delivering improved throttle response and top-speed.

RIVA B1 Supercharger Impeller is installed. This high performance replacement impeller delivers more horsepower and torque throughout the entire RPM range. Investment cast from extremely strong, lightweight proprietary aluminum and CNC machined to ensure exact tolerances. Sophisticated blade design is optimized aerodynamically & precision balanced to provide smooth operation. Installs easily into stock supercharger housing with no additional modifications required. Produces 13.5psi of boost in our Stage 2 Engine Kit.

RIVA 'GEN-2' Power Cooler Kit is installed. Power Cooler is dramatically more efficient than original intercooler system delivering an increase of 20 peak horsepower with exit temperatures averaging 60°F cooler than stock. Features large, unrestricted core that exhibits minimal pressure loss compared to stock intercooler and integrated blow-off valve mount that will accept recommended RIVA/HKS Blow-Off Valve (sold separately). Blow-off Valve relieves unwanted pressure during off-throttle operation reducing supercharger clutch wear and eliminating heat soak in discharge tube.

RIVA Intake Manifold Uprade Kit is installed. Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold enabling engine to produce more horsepower through increased air flow and boost pressure (+1lb).

RIVA Fuel Pressure Regulator Kit are installed. Kit provides increased fuel pressure necessary to compliment RIVA Boost Clamp. Set at an optimal static 65psi non-rising rate for our Stage 2 Engine Kit, the unit can be precisely adjusted to match the needs of your riding conditions. Plugs directly into original fuel system with OEM connectors and features a large 3/8" fuel return line that is routed through supplied rubber fuel tank cap. Includes integrated liquid-filled pressure gauge and billet Fuel Pressure Regulator Block-Off necessary for removal of stock fuel pressure regulator in fuel tank.

RIVA/Athena Pro-Series ECU are installed. Our racing ECU is able to match the increased performance needs of modified engines. Base Maps are calibrated to provide the optimum fuel delivery, timing and rev limit to compliment Stage 3 modifications. OEM dash display, engine diagnostic & engine safety functions are retained. Includes input for optional Lambda Sensor Kit for data logging air/fuel ratios & tuning functions. Plugs into wiring harness via RIVA Power Connector and mounts directly in place of stock ECU.

NOTE: To keep you up to date with the latest maps, software and accessories visit our dedicated ECU Manager web site.

RIVA Free Flow Exhaust Kit is installed. Kit replaces restrictive sound suppression system located between water box and hull exit reducing backpressure and engine operating temperatures.

RIVA Engine Cooling Upgrade Kit is installed. Kit delivers dramatically improved cooling efficiency to engine and oil cooler for increased reliability & performance. Greatly enhances water flow & pressure by replacing restrictive OEM water fittings with high-flow billet fittings and superior routing.

RIVA/Solas Engine Breather Upgrade Kit is installed. Kit eliminates power-robbing crankcase emissions from your engine's air intake. Increases horsepower by removing the engine's requirement to burn relatively non-combustible oil. Also improves intercooler efficiency by preventing the oil sludge coating that lowers thermal efficiency.

NOTE: RIVA Performance Kits intended for competition use only.

Racing Edition Stage 3 ('10~08 models) Performance Overview

This kit delivers a huge level of performance (+13~15mph) through easy to install, bolt-on engine, exhaust, and pump enhancements. No internal engine modifications are required. Kit features our state of the art RIVA/Athena engine management system and will reliably run on 91~93 octane pump fuel.

RIVA Performance Power Filter is installed. Kit replaces restrictive factory intake system delivering improved throttle response and top-speed.

RIVA E1 Supercharger Impeller is installed. This high performance replacement impeller delivers more horsepower and torque throughout the entire RPM range. Investment cast from extremely strong, lightweight proprietary aluminum and CNC machined to ensure exact tolerances. Sophisticated blade design is optimized aerodynamically & precision balanced to provide smooth operation. Installs easily into stock supercharger housing with no additional modifications required. Produces 13psi of boost.

RIVA Supercharger Gear Dampener is installed. Dampener features innovative cushioning mechanism that insulates gears from harsh clutch engagement protecting gear teeth & sprag clutch on supercharger drive system. Directly replaces OEM intermediate gear located between clutch and supercharger shaft.

RIVA 'GEN-2' Power Cooler Kit is installed. Power Cooler is dramatically more efficient than original intercooler system delivering an increase of 20 peak horsepower with exit temperatures averaging 60°F cooler than stock. Features large, unrestricted core that exhibits minimal pressure loss compared to stock intercooler and integrated blow-off valve mount that will accept recommended RIVA/HKS Blow-Off Valve (sold separately). Blow-off Valve relieves unwanted pressure during off-throttle operation reducing supercharger clutch wear and eliminating heat soak in discharge tube.

RIVA Intake Manifold Upgrade Kit is installed. Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold enabling engine to produce more horsepower through increased air flow and boost pressure (+1lb).

RIVA Fuel Pressure Regulator Kit are installed. Kit provides increased fuel pressure necessary to compliment RIVA Boost Clamp. Set at an optimal static 65psi non-rising rate for our Stage 3 Kit, the unit can be precisely adjusted to match the needs of your riding conditions. Plugs directly into original fuel system with OEM connectors and features a large 3/8" fuel return line that is routed through supplied rubber fuel tank cap. Includes integrated liquid-filled pressure gauge and billet Fuel Pressure Regulator Block-Off necessary for removal of stock fuel pressure regulator in fuel tank.

RIVA/Athena Pro-Series ECU are installed. Our racing ECU is able to match the increased performance needs of modified engines. Base Maps are calibrated to provide the optimum fuel delivery, timing and rev limit to compliment Stage 3 modifications. OEM dash display, engine diagnostic & engine safety functions are retained. Includes input for optional Lambda Sensor Kit for data logging air/fuel ratios & tuning functions. Plugs into wiring harness via RIVA Power Connector and mounts directly in place of stock ECU.

NOTE: To keep you up to date with the latest maps, software and accessories visit our dedicated ECU Manager web site.

RIVA Free Flow Exhaust Kit is installed. Kit replaces restrictive sound suppression system located between water box and hull exit reducing backpressure and engine operating temperatures.

RIVA Engine Cooling Upgrade Kit is installed. Kit delivers dramatically improved cooling efficiency to engine and oil cooler for increased reliability & performance. Greatly enhances water flow & pressure by replacing restrictive OEM water fittings with high-flow billet fittings and superior routing.

RIVA/Solas Engine Breather Upgrade Kit is installed. Kit eliminates power-robbing crankcase emissions from your engine's air intake. Increases horsepower by removing the engine's requirement to burn relatively non-combustible oil. Also improves intercooler efficiency by preventing the oil sludge coating that lowers thermal efficiency.

RIVA Pump Seal Kit is installed. Location specific molded inserts are siliconed in to the voids of the OE transom plate and RIVA Top-Loader Intake Grate significantly reducing cavitation.

RIVA/Skat-Trak 160mm 'R'-Series Swirl Impeller is a special performance impeller offered exclusively by RIVA and RIVA authorized dealers. Built by Skat-Trak, this impeller delivers the ultimate in performance for Stage 3 FZ models. Inner hub is machined allowing impeller to mount closer to vein housing for reduced cavitation and more top speed. Oversized impeller blades are digitally calibrated to RIVA’s uniform pitch specifications. Impellers are then dynamically spin-balanced at high RPM. A precision factory blueprinting process is performed far exceeding any ‘prop shop’ services available. Includes Billet Impeller Cone for maximum performance and durability.

RIVA 160mm Stainless Steel Wear Ring is installed. Built from solid stainless steel, this wear ring perfectly compliments the RIVA/Skat-Trak 160mm impeller significantly reducing cavitation and improving acceleration in RIVA Stage 3 FZ models.

RIVA Top-Loader Intake Grate & Performance Ride Plate are installed. Our ride plate and intake grate combo increase top speed and significantly enhance handling characteristics. Prop spin and cavitation found with the stock grate is greatly reduced along with the modified FX-SHO's tendency to drop on its nose when the throttle is let off at high speeds.

RIVA Pro-Series Reductions Nozzle with 84mm Nozzle Ring are installed. Allows nozzle exit diameter to be easily changed via interchangeable ring system to maximize performance in varying conditions. Includes three stainless steel rings in graduated sizes.

NOTE: RIVA Performance Kits intended for competition use only.

 

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