R&D T1 Turbo kit for Yamaha FX SVHO – World Exclusive
Klipper’s Offshore weapon
R&D Performance offers up an all new Turbo Charger Kit that is a proven class winner in Offshore competition. R&D has mastered the concept of Turbocharging for watercraft and with their perfectly tuned kit for the Yamaha 1.8 liter engine which also offers for recreational use and the weekend warriors.
Test rider:Vasilis Moraitis
Photos:www.jetskiworld.gr, Glenn Dickinson (action)
It was six years ago when R&D had first introduced its turbo charger kit for the Kawasaki Ultra 250X at the World Finals in 2007 and attracted people’s attention. Now the American company decided to introduce another kit specifically designed for the Yamaha 1.8 SHO and SVHO engine. This is the ultimate Turbo Charger Kit geared to do away with clutch and supercharger issues in endurance/offshore racing. In fact, Mike Klippenstien dominated in all the offshore events he entered in 2014 by running up front consistently and pulling down 2 out of 3 main event wins, one of which was two back to back 70 minute moto’s at Lake Perris in which he lapped the field 3 times.
This particular offshore T1 turbo kit operates with stock injectors, stock fuel system, stock conrods, stock cams, stock compression (O.E.M.) pistons, and an O.E.M. R&D reprogrammed ECU! The latter will save you a lot of money compared to a sophisticated (and complicated) high tech ECU. No need for that! R&D has been reprogramming ECUs for many years for 100+mph turbo applications for individuals that compete in to I.J.S.B.A. Hydrodrag racing, with great success. The Kit tested here in Mike’s boat had the R&D “Super Single” valve spring kit and R&D titanium retainers to keep the valve train perfectly stable in offshore ocean type racing!
The particular kit for the 2014 FX SVHO works also well with the O.E.M. pump and reduction nozzle assembly with addition an R&D Pro Pitch 14/20 Impeller, and R&D Adjustable Pump Cone Kit.
The Turbo System R&D decided to use for this particular kit started life as a Borg Warner EFR Turbo Charger being disassembled, modified, turbine housing ceramic coated, and precision calibrated waste gate actuator. Chapin tested extensively many turbine charger housings on the Super Flow bench, before arriving with a turbine core for a starting point, then the modifications begin. Bill uses his Super Flow testing bench to monitor, evaluate and document modifications using a Garret Speed counter to evaluate the response time and speed of the turbo on a flow bench test.
R&D also utilizes a Turbo Smart Boost Controller that enables the rider to switch (on the fly) between two predetermined (user defined) boost settings. The T1 kit boost actuator is adjustable between 10-16 pounds. For this test it was set at 10 pounds (low boost) and 16 pounds (high boost) of boost and it could be changed via a switch. There is also a manual boost control option that is available.
Another important aspect is the location of the Intercooler. Taking a closer look at the pictures you will notice that the intercooler is mounted as close to the turbo charger as possible. This maximizes the efficiency of the charged air. The Intercooler is strategically modified with an internal vein in order to promote laminar air flow across the intercooler core to maximize intercooler efficiency by 25%. Close attention to detail has been taken with every aspect.
This turbo kit has been designed to work along with the R&D reprogrammed ECU. The T1 Turbo Tune is rpm/boost referenced and perfectly calibrated to provide an ideal 12-12.5 AFR (Air Fuel Ratio) at any throttle position or boost level. The process of manipulating the algorisms in the oem ECU is a difficult process. But the mad scientist Mr. Bill Chapin has mastered the process to a level of perfection you must ride and experience for sure. This ECU is amazing. This ECU tune works as good as any aftermarket high end ECU that we have tested.
This kit is designed to be reliable with the stock engine internals up to 8600 rpm. For increased reliability, R&D recommends upgrading to the R&D Super Single Valve Spring kit, Carrillo Rods, and CP forged pistons.
The actual test
Testing the Klipper T1 Turbo kit was really something to appreciate! The first thing I noticed was the awesome acceleration from low rpm. It was a turbo lag free acceleration that I have never felt before on any other turbo kit I have tested in the past, including Craig Warner’s GP Runabout Factory Kawasaki race boat (read the complete story published in the Race Tests section). As soon as I was on the gas the R&D turbo kitted FX SVHO was accelerating superbly with no hesitation, no hiccups, and with zero cavitation. And if you think that I was just doing all these in drag style format you are wrong. It was pulling hard round the closed course buoy or even a hairpin turn without dropping its pace. Seriously this turbo kit put a smile on my face as if I was testing a very good race prepared offshore race boat. I had initially tested the recreational version of this turbo kit which operated on 10 pounds of boost.
Then by clicking a hidden switch the boost pressure was set at 16 pounds. I hit the water again and this time I admit that I reconsider taking those gym classes back home. The arm stretching top end acceleration was phenomenal and the stock Yamaha FX hull was ready to fly. I could barely feel the hull touching the water surface. The boat was going ballistic and I needed more effort to keep myself on board. It is really amazing what this turbo kit can do on pump gas. It out performs the previous a state-of-the-art light weight turbo Open Race boats I have tested in past years. The top speed of this version with the 18 pounds of boost can be up to 85 mph depending on the set up of the ride plate and the steering nozzle! 85 MPH on pump gas at 8400-8500 RPM’s. Seriously? YES. All day long.
Test data of FX SVHO T1 Turbo Kit
10 lbs of boost, 6600 rpm, AFR:11.2-11.9, Top speed=77-78mph with ¾ of fuel on tank
16 lbs of boost, 8150 rpm, AFR:11.8-11.9, Top speed=82mph with ¾ of fuel on tank
18 lbs of boost, 8450 rpm, AFR:11.8-11.9, Top speed=85mph with ¾ of fuel on tank
Many people out there should initially think that this particular turbo set up was designed for Off-Shore and Recreational use only. Well, I tested the same kit on the R&D T1 Turbo FZR in the past in Bady Beach and I tell you one thing, the boat was going phenomenal around the buoys. It accelerated from buoy to buoy like a rocket and all of a sudden I realized that the buoy course got shorter. You will be amazed of how this boat performs in a close course.
This turbo kit is capable of up to 20-22 pounds of boost by changing the actuator to the optional actuator. The 20-22 pound actuator requires larger injectors, bigger fuel pump, different ECU mapping, recommended internal engine components, bigger impeller, R&D cams and high octane race gas. Imagine how all this would perform in a light weight racing hull. I believe that Bill Chapin still has inside his premises the latest edition of a Lee Manvell lightweight Chapin spec FZR hull. R&D has informed me that I will soon be testing the race edition of this turbo FZR kit.
Handling wise the FX hull became far more stable in the straight-aways due to the new R&D sponsons. The boat does not hope at all and feels steady as a rock even at top speed. I tested the same boat after the Mark Hahn race and its stability was not the same. There is no doubt about it that those new R&D sponsons is “must have tool” for those who plan to go Offshore racing, since the rider will feel far more safe and he will be able to ride at a full throttle mode most of the time.
The kit is ready for sale therefore, for price and availability contact R&D. Rumors say that many R&D T1 Turbo kits will be on several race boats –Kawasaki and Yamaha- at the 2015 Mark Hahn 300 race next year. It will be fun to watch…
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R&D Racing Products USA Inc.
12983 Los Nietos Rd.
Santa Fe Springs. CA. 90670