Nitrotec R21 3.5cc Race Engine

Nitrotec - Performance-Engineered Nitro Racing Products

At a Glance

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.

Features

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 and 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
Carburetor materials optimized to prevent thermal conduction

Product Specifications

Displacement:.21 cu in (3.5cc)

Bore:.6402 in (16.26mm)

Stroke:.6614 in (16.8mm)

Engine (Only) Weight:13.5 oz (383 g)

RPM Range:5,000–35,000

Completion Guides

Recommended by Losi

Needed to Complete

Nitro Fuel
Tuned Pipe and Manifold

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