Category Archives: NEWS (ENG)

NEWS (ENG)

R&D announces the release of the new R&D/Tial 50mm Surge/Blow off Valve Kit. R&D has been committed to on going research for any part that proves to be an aid in reducing the inherent and well known clutch issues related to running high performance boost wheels and high boost pressures in the Yamaha 1.8 Supercharged engine. R&D has noticed a significant reduction in clutch related issues in high boost ranges by “Going Big”. R&D engineers have concluded through endurance testing that the new 50mm R&D/Tial Valve with its huge 50mm lightweight billet aluminum piston, and 4 massive (bigger than any other valve) pressure relief ports, to outperform the smaller (25-35mm) HKS Sequential, and 35mm Greddy RZ Valves. The trick R&D has found with this valve is, in aggressive off throttle situations with a gear driven supercharger the big Tial 50mm piston responds quickly to allow the reduction of boost pressure which relieves back pressure that can affect the clutch. The new 50mm design also has a much larger diaphragm over HKS and Greddy, which helps the piston react quicker to relieve pressure. If you are running Boost Wheels that produce over 15 pounds of boost, R&D strongly suggests looking into a larger valve setup. It only stands to reason that with higher boost pressures, a larger valve can allow quicker discharge of air volume. Valve kit comes complete with Aluminum weld-on adaptor, o-ring seal, billet Aluminum V-clamp, and banjo style vacuum fitting. Features: Aggressive throttle response, increased horsepower from a better seal, Increased boost pressures over smaller valves that don’t seal well, Improved valve action with larger diaphragm and variable spring control, Improved clutch performance from reduced off throttle backpressures, Precision sequential valve operation, Installs easy and clean to the O.E.M. intercooler inlet/outlet, Works well on R&D Pro Series Intercoolers, R&D Shop service Optional, or exchanges available. Part Number: Pt. #613-95263 R&D/Tial 50mm BOV - Installation welding labor $74.95.

American company SBT is well known for its rebuild engine services as well as the fact that provides special parts and all kind of accessories that anable every pwc enthusiast to repbuild or services his personal watercraft at a reasonable cost. On the other hand if you already know all these or if you have experienced the company’s services you ma still log in at www.ShopSBT.com and download some of the companies nice wallpapers like the one shown.

Our reader from California, USA Kyle McLaughlin own a Kawasaki JS550 a real vintage race ski of Pro Mod level. According to his remarks it is equipped with a PJS package along with other goodies (hood, scoop, plate, etc.). Kyle was amazed by the Old School Museum that was set up in Performance Alley at the World Finals last year and he was wondering whether his Ski could be displayed. We have already contact him and arranged to speak the appropriate people who organized the Old School Museum. Good luck Kyle.

The R&D Superclutch elevates all clutch performance aspects to a higher level. The Superclutch is a supplemental clutch system that is designed “specifically” for the Yamaha to be used along with the OEM Sprag drive system. The R&D clutch design utilizes an “Oil-Loaded” Friction Disc design which will dampen constantly changing rotational mass energies, and aggressive moment of inertia shock loads that have proven to over stress the OEM Sprag clutch drive and cause failures. The new R&D Superclutch and shaft system is CNC machined from premium billet steel alloy, heat treated, and precision ground between centers to strict aircraft tolerances. This R&D system features a unique one-piece billet shaft design that utilizes a proven high pressure, through-shaft oiling technique to lubricate the billet drive gear bearing, clutch system friction discs, and the “all important” additional rear third bearing. The Superclutch shaft features (an R&D standard) oversized threads and a flanged nut proven in design to not fatigue or break under extreme conditions and allows charger impellor torque specs to be increased safely. The R&D Superclutch drive gear is machined from billet steel alloy, heat treated for proper hardness, and the tooth profile is precision CNC ground to OEM Yamaha specifications. The clutch surfaces of the R&D gear features special “oil-holding” wiper slots that provide improved oiling to increase lubrication to the clutch discs. The R&D clutch discs are precision machined, heat treated, and ground to exact tolerance utilizing only the finest materials tested and proven to be the best in these type systems. The R&D third bearing support design is integrated into a new back housing cover machined from billet aluminum with a creative precision alignment flange to insure 100% trueness and support to the third bearing. The third bearing assembly adds a tremendous amount of shaft support which will keep the shaft in line and free from the stresses of “gear climb”. The third bearing assembly will also relieve stresses on the chargers main thrust system. For Periodic clutch maintenance and adjustments, R&D has made it easy. The clutch slip can be adjusted easily, and clutch discs inspected and or changed out without removing the shaft from the supercharger with the special tool kit provided with each system. Minor machine work is required to the rear of the supercharger housing in order to achieve proper drive gear alignment (mating to the jack gear) and to true up the back cast surface so the third bearing housing cover mounts precision and true to the shaft centerline position. Machining is available from R&D (2-3 day turnaround time), or your local machine shop can follow the kit supplied blue print. Technology and performance make the Superclutch the finest and most effective clutch system available. Click on the attachment sign to view the 3D drawing and to rotate it by left click on the mouse.

As if Larry's plate wasn't full enough, he is now assisting Universal Studios Japan with the Waterworld Show. Please see this important notice: Universal Studios Japan Waterworld Show Auditions. Larry Rippenkroeger is looking for a few good men. Actually, Larry is assisting Universal Studios Japan in their search for new PWC stunt performers for the Waterworld show located in beautiful Osaka, Japan. If you are at least an expert level standup ski rider and have dreamed of breaking into the stunt world, this is your chance. Auditions will be held in the Los Angeles area on September 10, 2011. Kawasaki SXR800's will be provided and riders will be evaluated on their overall abilities, including maneuvering in a confined area, performing fakey-subs, etc. Those riders lucky enough to make the cut will be offered a contact to perform in Japan with perks that include - Net pay between USD $2850.00 and USD $3000.00 monthly*(Universal Studios Japan is required by law to tax the gross income of all performers. Therefore, compensation is listed in net figure amounts.) Bonus pay structure. Performers could earn up to an additional USD $4000.00* based on a year-long contract. (Shorter contract lengths are appropriately pro-rated) All performers receive a daily per Diem of JPY 4700* (approx $60.00) while in Japan. Each performer will receive a round-trip economy airline ticket from their homeport. Each performer is automatically enrolled in USJ's medical insurance program while under contract. Each performer will be provided their own fully furnished apartment in cast housing, which includes among other items a washer, dryer, refrigerator, microwave and television set. Each performer will receive a train pass to and from Universal Studios Japan and cast housing or a predetermined, suitable transportation allowance. Each performer will receive a bicycle. Each performer receives a mobile phone (with limited toll allowance). Each performer receives a gym membership. Qualified riders who are interested in this great opportunity should send your contact information to Larry at stuntripper@hotmail.com. You will be contacted with additional details as the September 10th Los Angeles audition date draws closer.

Our Adjustable Cam Sprocket Kit delivers a significant increase in horsepower, speed & RPM through easy cam timing adjustment. Quick-Tune design features color coded timing inserts that lock-in desired cam adjustment in minutes without removal of cam tensioner, camshaft or cam sprocket (after initial installation). Design allows fast & easy timing adjustment; saving hours of time when testing and tuning. Sprockets are precision machined from billet steel and heat treated for maximum durability. Key Features: Allows fast & easy adjustment of cam timing for maximum performance, Quick-Tune timing inserts lock-in cam timing in minutes, Designed for both SHO & HO Yamaha 1.8 liter engines, Works well with both stock and performance cams, Easy bolt-on installation, and Includes complete instructions with tuning guide. Available with part number RY19040-ACS at the price of $219.95

Team Pastorello has given two International wins to Kawasaki and the brand new 300X. Jean-Bruno Pastorello won recently the Akropolis Jet Raid and his team mate Amaury Carlier finished closed second. How good is his almost stock 300X. Read the full report under the Race Tests section.