Stock 2017 GP 1800 SVHO Avg. Speed 68-68.5 @ 7400 RPM
R&D 2017 GP 1800 SVHO Pro Stock Kit Avg. Speed 84-85+ @ 8600 RPM


Description of Parts
R&D GP 1800 SVHO Aquavein Top Loader Intake Grate
Part # 112-18005
R&D GP1800 SVHO Pro Series Ride Plate
Part # 122-18008
R&D GP1800 SVHO Grate/Shoe Seal Kit
Part # 162-00023
R&D GP1800 SVHO R5-PS Reprogrammed ECU
Part # 802-00305
R&D GP 1800 Pro Series Filter Kit
Part # 200-01807
R&D GP 1800 SVHO 13/20 or 14/18 Pro Pitch Impellor Kit
Part # 132-81418 Call for custom specifications
R&D GP 1800 SVHO Pro Series Sponson Kit
Part # 122-01805
Total: $

Parts/Kit Overview

The R&D Yamaha GP 1800 SVHO Pro Stock Kit was developed specifically to comply with the 2017 I.J.S.B.A Rules Regulations for stock class racing. The R&D kit will improve overall engine horsepower, enhance handling, and add to pump efficiency with easy to install “Race Proven” “Bolt On” parts. Each component part listed can be installed and used as a stand-alone product or in complete kit format. The R&D pro Stock Kit has been extensively tested in all water conditions for performance and reliability in true hard core racing conditions. The R&D Kit runs great top speeds all day long on ETS or VP-MS 109 racing fuels. Trust R&D! Over the past 30 years, no other aftermarket company has won more Pro Stock National, Offshore and World Championship Titles!

NOTE: Depending on Impellor pitch and running RPM choices available, the R&D kit can have higher top speeds than posted by 2 mph with impellor choice. The 14/19 will allow the engine to run at 8400-8500, therefore, 83-84 MPH is achievable while still using the R3 ECU and 91 octane pump gasoline! The R&D Pro Stock ECU and 14/18 impellor will run 84-85 MPH at 8600-8800 RPM’s using ETS Fuel. R&D offers RPM Limiter specifications of 9000, 9200, 9400, and 9600. R&D recommends periodic removal and inspection of O.E.M. Retainers. R&D suggests inspecting and changing out retainers every two races.

  • The R&D GP 1800 SVHO Aquavein Intake Grate is must have performance adder! Replacing the O.E.M. “Non Winged” grate with the R&D Race Proven Aquavein “Top Loader” will add some serious rough water hook up, and better top speed averages, GAURANTEED! The R&D Grate will significantly reduce cavitation, increase acceleration, and add 2-3 mph plus to top end performance in flat or rough water conditions! The Aquavein Grate will deliver a noticeable increase in rear end traction, and top speed stability. Low and high speed cornering stability is also significantly increased

  • The R&D GP 1800 Ride Plate has some new speed tricks added to increase overall handling performance that will also add to the GP 1800’s top speed performance! Testing has proven to add 1-2 MPH over the stock GP 1800 plate, and 2-3 MPH increased top speed averages in rough water conditions! Much Improved straight line stability, and Improved deep chop performance. The R&D Ride plate works superb to get rid of the annoying rear end wander or teeter noticed at speeds above 75. The R&D Plate is super stable at 85 MPH Plus! A must for Recreational/Offshore riding! The Plate Kit is position (Angle) adjustable with kit supplied shims which will accommodate Closed Course or Offshore conditions.

  • The R&D GP 1800 Pump Shoe/Intake Grate Sealer Kit will seal up the R&D intake grate, pump shoe and pump inlet to help reduce cavitation. Pump hook-up, and top speed performance are increased significantly!

  • The R&D GP 1800 SVHO R5-PS Re-programmed ECU has all the best racing ECU performance upgrades, such as, choice in raised rev limiter settings, raised boost limiter settings to allow maximum boost potentials, improved ignition timing advancements, re worked fuel tables that will allow 100 percent reliable power to be gained at a very reasonable price. R&D offers custom rev limiter setting packages that work specifically with R&D Pro Pitch Impellors. Rev Limiter Packages in 8800, 9000, 9200, 9400, and 9600 range. The R&D ECU upgrade is one of the best power adders for the Yamaha 1.8 platform. Call R&D for the latest updates for the GP1800 SVHO.

  • The R&D GP 1800 SVHO Pro Series Filter Kit will add a noticeable increase in throttle response and overall power by opening up and allowing unrestricted air flow volume over the super restrictive O.E.M. paper filter and air plenum box. O.E.M. paper filters are known to be over restrictive and hinder positive low-end power. The R&D Kit offers the straightest routing on the market eliminating restrictive 90 degree turns. The R&D Filter Kit is easy to install in 15 minutes, adds a great sound tone, and adds peak rpm’s and power. The R&D Air Filter element is lifetime serviceable over the restrictive non serviceable stock filter.

  • The R&D GP 1800 50mm Surge Valve Kit will eliminate the massive off throttle surge that can and will cause compressor wheel, supercharger shaft, and clutch damages and failures. Any high performance race machine with a supercharger or turbo charger installed should have a surge valve kit! The R&D Surge Valve Kit is an absolute must have part for the new GP 1800.

  • The R&D GP 1800 Pro Pitch Solas Impellors offer excellent acceleration, added mid range pull and improved top speed performance while keeping the RPM’s at a reasonably low range. R&D also offers Impellor pitch packages developed specifically to work with ECU Rev Limiter setting packages. No one has tested more impellor combinations or has more experience with impellor set ups than R&D. Trust the Pro’s at R&D for all your impellor and pump set up needs. Note: Call R&D for custom impellor services tailored for your desired RPM range and performance. NOTE: R&D recommends the addition of the R&D Dual Washer Kit (Pt. # 132-81111) to eliminate thread galling.

  • The R&D GP 1800 SVHO Pro Series Adjustable Sponson Kit offers 2 rider preferred adjustable blade positions, as well as an adjustable backing plate option that allows Axis adjustments, as well as up and down position options. The R&D Kit will accommodate custom settings for the recreational rider, offshore, or closed course racer. The R&D precision cast aluminum backing plate and Race Inspired sponson blade will significantly improve low and high speed cornering capabilities, and add unmatched straight line stability. The R&D Pro Series Sponson Kit will reduce high speed side roll and chine walking, and has also been tested 2 up.

NOTE: Call R&D for the latest tuning tips and ECU Program information and suggestions for fuel types in your area. R&D has many Pro Stock and Pro Limited Kits being used to win consistently in foreign countries around the world. R&D can offer suggestions for custom setups in your region.

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