O.S. Engines O.S. Speed R2104 1/8 Scale Engine OSMG2025 | Engines - RC Planet

Overview: The O.S. SPEED R2104 is a factory tuned engine solely developed for 1/8 racing competition. This new engine boasts 9-port piston liner to improve torque in low-middle power range. It also produces enough power as designed even for high traction tracks. The redesigned crankshaft counter weight enables smooth power transition from low to top. Distance of each fin of the heat sink head is enhanced for better air flow for cooling and better balance. The heat sink head is anodized in both black and red for a high contrast and powerful aesthetic. : Cylinder Liner This new engine boasts a 9-port piston liner to improve torque in low-middle power range. It produces enough power as designed even for high traction tracks. Outer Head Distance between the cooling fins is enhanced for better air flow and better balance. The heat sink head is anodized in two colors: black and red. Inner Head A silicon O-ring fit to the inner head prevents dust from coming into the engine. Crankshaft The redesigned crankshaft counter weight enables smooth power transition from low to top. Carburetor The carburetor is 21M2(B), which has been proved to be consistent and reliable for generations (R2101, 2102, 2103)