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LOSR2800 Nitrotec R21 3.5cc Race Engine
- Developed by Team Losi Racing, manufactured by Novarossi World S.R.L.
- State of the art ABC (Aluminum piston-Brass sleeve-with Chrome plating) construction
- Optimized hi-velocity extra efficient 4-port sleeve design
- Lightened Aluminum/Silicone alloy piston with Dome/Dish design for improved combustion
- Lightened & Knife Edged Machined Aluminum connecting rod with pressurized oiling feature
- Vacuum cast aluminum alloy case with large cooling and reinforcement fins
- Stuffer type back plate with o-ring seal and machined piston relief
- Oversized cooling heat sink head
- Turbo head insert/combustion chamber
- Hardened steel turbo ported crankshaft with machined reliefs to prevent windage
- Specially constructed precision ball bearings supporting the crankshaft
- Composite double O-ringed slide type carburetor with molded restrictors
- Easy tune high and low speed needle valves
- Includes 7, 6.5, & 6mm o-ringed carburetor restrictors
- Carburetor materials optimized to prevent thermal conduction
Developed with the racer in mind, the Italian-made Nitrotec R21 3.5cc/.21C.I. Race Engine (LOSR2800) was designed to produce a race winning power band and throttle response while delivering exceptional run time. The Nitrotec R21 is recommended for use with the 8IGHT family of vehicles, as well as any nitro vehicle that requires a .21 engine.
Displacement: .21 cu inches (3.5cc)
Bore: .6402 inches (16.26mm)
Stroke: .6614 inches (16.8mm)
Engine (Only) Weight: 13.5 oz (383g)
RPM Range: 5,000 - 35,000
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