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Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3
Yamaha GP1800 Stage 3

Yamaha GP1800 Stage 3

Regular price
$8,059.00
Regular price
Sale price
$8,059.00
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Top Speed: 86 mph
RPM Limit: 8800 rpm

The MaptunerX Bundle is utilized to reflash the original ECU. MaptunerX provides ability to quickly and easily load performance tunes directly into your stock ECU eliminating downtime that results from shipping for programming. Maptun Tunes are calibrated to provide optimum fuel delivery, ignition timing and rev limits. OEM dash display, engine diagnostics & engine safety functions are retained. MaptunerX features a full color, touch screen display, ability to restore stock tune settings and access to Maptun's tune library and technical support.

Our Power Filter feeds your supercharged engine a steady diet of cool air delivering greatly improved acceleration and rpm. Replaces restrictive stock air box with a high-volume, precision-formed intake duct that attaches to the supercharger via a large 4” adapter. Cool air enters the system via an oversized K&N filter element. Includes detailed installation instructions.

This simple kit improves water flow to Yamaha SVHO engine and intercooler for improved performance & reliability. Greatly reduces loss of power due to "heat fade" on stock and Stage 1 modified craft.

Includes tools necessary to enlarge restrictive water passages in original plastic water fittings along with all necessary hardware and detailed installation instructions.

The new Solas Concord YV-CD-13/20 blows away the performance of your stock impeller! Large blade area and superior hub design deliver increased acceleration and top speed. This 13/20 variable pitch impeller works great with stock through Stage 2 modifications.

NOTE: Designed for use with Yamaha FZR/FZS SVHO & FX SVHO models (Stock - Stage 2 modifications)

Easy to install Engine Breather Upgrade 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. In forced induction applications intercooler efficiency is improved by preventing the oil sludge coating that lowers thermal efficiency. Kit includes K&N filter along with all necessary hardware & detailed installation instructions.

The All New RIVA GEN 3 Yamaha SHO/SVHO Power Cooler Kit (intercooler system) features a huge cooler element that is rated for up to 600hp! High capacity cooler core resists heat soak under the most demanding high boost/high temperature applications. Delivers an increase of 20 peak horsepower over OEM intercooler providing arm-wrenching results on the water! Quality manufacturing of cooler core delivers minimal pressure drops and excellent thermal efficiency. The cooling element is dramatically more efficient than the stock unit with exit temperatures averaging 50F cooler than stock. This delivers cooler, denser air for increased performance throughout the RPM range. Features integrated 50mm TiAL Blow-Off Valve for improved supercharger reliability and performance. Power Cooler installs securely with shock absorbing rubber mounting system & stainless steel hardware. Kit contains all necessary hardware and detailed installation instructions.

High quality HKS Blow-off Valve reduces wear and tear on clutch & drive gears of supercharger and eliminates heat soak in discharge tube. HKS SSQV (Super Sequential Blow-off Valve) features unique sequential valve structure and a differential pressure control system, allowing for a broad operation boost range. Includes vacuum line and specific fittings necessary for installation.

Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm. Includes 16 lightweight, precision-machined titanium valve retainers. A must for IJSBA & APBA Stock Class race craft.

The RIVA Yamaha 1.8L High Flow Billet Fuel Rail is an essential upgrade to your fuel system to support increased horsepower from supercharger or turbo modifications. Directly replaces restrictive factory fuel rail for improved fuel delivery and enhances the appearance of your engine bay. Precision machined billet aluminum rail features a unique bracket system that adapts to a variety of injector sizes & lengths. Large body design provides increased flow capabilities to support 500+ horsepower applications. Inlet fitting accepts OEM Yamaha fuel connector for easy plug-in installation. Includes fittings for flow-through fuel routing to eliminate injector supply fluctuation and keep fuel cooler. Can also be set up with OEM dead head routing via supplied fuel pressure gauge or plug. Constructed of 6061 billet aluminum and anodized to prevent corrosion. Includes all necessary mounting hardware and complete installation instructions.

Key Features:
High flow fuel delivery supports more power.
Fits all Yamaha OEM injectors along with RIVA 100lb Pro-Series Fuel Injectors (part# RY12040-I-KIT-100).
Accepts OEM Yamaha fuel connector fitting for easy installation.
Delivers equal fuel supply to injectors with flow-through fuel routing.
Billet aluminum construction and anodized to prevent corrosion.
Can also be used on stock engine with stock injectors for cosmetic upgrade.
Applications: All Yamaha 1.8L engines (SVHO, SHO, HO).

Replaces the restrictive sound suppression system located between the water box and hull exit on your watercraft improving engine performance by reducing back pressure and harmful detonation. Made from mandrel bent aluminum tubing, bead rolled on the ends to secure couplers, and powder coated to prevent corrosion. Includes high temp silicone replacement coupler and installation instructions

Our Super-Duty GEN-4 SHO/SVHO Supercharger Shaft Kit provides the ultimate in reliability for high boost applications. Kit features a revolutionary hydraulic shaft stabilization bearing that limits shaft deflection and wear. Bearing stabilizes end of supercharger shaft via high pressure oil film dramatically increasing the stability of the system. Hydraulic end bearing and one-piece shaft bearing are fed by a through-shaft oiling system providing superior lubrication. Oil is delivered by braided stainless line and injected into a billet end cap that houses hydraulic bearing. Shaft is precision machined from a single piece of high-strength billet steel producing shaft, collar & gear as one piece. This eliminates the common failure point on stock shafts where OEM gear is pressed onto shaft. Shaft also features larger diameter threads & nut for added strength. Kit includes new one piece bearing with increased surface area providing improved torsional stability of shaft. Bearing features superior materials & finish treatment for reduced friction & abrasion resistance. This Shaft & Bearing Kit is a direct replacement for OEM parts and requires no additional modifications for use.

Key Features Include:
Hydraulic end bearing minimizes shaft deflection.
Through-shaft oiling system maximizes lubrication.
Braided stainless steel oil line delivers additional lubrication.
One piece shaft/collar/gear construction. Stronger billet material & superior surface finish.
Larger diameter threads & nut.
One-piece bearing improves shaft stability.
Bolt-on installation (no machining required).
Manufactured exclusively for RIVA Racing by HKS.

Our high impedance fuel injector kit delivers additional fuel to modified engines for high boost applications. 100lb (1,000cc) injectors are for use with aftermarket ECU for correct calibration. Kit includes 4 injectors, plug and play adapters, fuel rail spacers and detailed installation instructions. Also sold individually. Compatible with 08 & newer 1.8L models only.

Presenting the ultimate (drop-in) supercharger impeller for the Yamaha SVHO Engine! Designed to deliver more horsepower and torque throughout the RPM range resulting in excellent acceleration and top speed. Precision machined from billet aluminum to ensure exact tolerances and anodized to prevent corrosion. All new blade design is optimized aerodynamically and high speed balanced for smooth operation. Installs easily into stock supercharger housing with no modifications required. Includes detailed installation instructions. Produces 17psi @ 8,500rpm.

NOTE: For use with Stage 2 & Up modifications. Requires use of aftermarket engine management system for proper calibration.