April 24, 2024
Novarossi Plus21-7FMS .21 Rear Exhaust 7 Port OS RB
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Plus21-7FMS] .21 Rear Exhaust 7 Port Off Road Slide Carb. SG Filled Crank Turbo Plug Ceramic Rear Bearing [PLUS21-7FMS] Cooling head: The cooling head of the PLUS 2 engines have some holes drilled in, to reduce the mass of this part . Combustion chamber: The combustion chamber is supported by an O-Ring which is placed between the combustion chamber and the crankcase to reduce the vibrations of the combustion chamber . Crankcase: The crankcase has a 3 porting system. The shapes of these portings obtain the best possible mixture flow. Crankshaft: The crankshaft has a special shape to reduce turbulences inside the crankcase. It has been filled to increase acceleration. Sleeve: The sleeve has 7 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance. Rear Cover: The rear cover presents a round shape to optimize the filling and reducing the dead spaces.
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