RC Marine Korea (RCMK) releases an updated version of their engines for model boats, the “Evolution version”.
The main thing is that they have made new cylinders that have much better performance direct out of the box. There is no need to buy the handmade special tournament cylinder anymore, because from now on the cylinders have this tuning direct from factory. Available engines in new Evo version will be S254 Evo, SX254 Evo and R254 Evo. The RCMK factory have tested one “stock” S254 Evo in running test in one of their Deep-Vee hulls named Zenith, and the results are amazing…
Octura 1475 prop(Modified) : 94.8km/h
Prop shop  7016/3blade : 89.6km/h
Prop shop  7018/3blade : 92.7km/h
Australia prop  7040/3blade : 93.8km/h
RPM : 22,038(Max RPM)

Performance to an affordable prize. New Evo engines are available from  end of July.

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This new Rapicon Racing fuel is developed specially for boat engines. The fuel is available in 4 liters cans witch are approved for transportation. You can choose from three different blends 30% or 45% Nitro with 18% oil, And 60% Nitro with 16% oil. Rapicon use only the highest quality Nitro methane and synthetic oil. 

This fuel is produced in South Korea in a high-tech laboratory by qualified chemists. Only the best available ingredients has been used.  Rapicon fuels has been tested in many different applications for many years in airplanes, helicopters, boats and cars. 
 

The new synthetic oil has many benefits.

• Less deposit of carbon and grime inside the engine and pipe.
• In build protection against rust and corrosion. Not aggressive on aluminum.
• Much easier to adjust the fuel mix independent of environment temperature.
• Less noise.
• The engine goes cooler because of the thin oil film.
• Smoother idler rpm.
• Stable very high power.
• Longer running times comparing to other pre mixed fuels in the market.
• Rapicon is designed for high rpm.
• Rapicon´s advanced technology provides for better protect against oxidation and dissension witch can come in high temperatures.
• Low price comparing to many other leading pre mixed fuels in the market.

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