LOSR2800
MSRP: $379.99
Available for*: $249.99
*at participating retailers

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Losi Nitrotec R21 Race Engine

Developed with the racer in mind, the Italian-made Nitrotec 3.5cc/.21C.I Race Engine 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.

Engine Call-Outs

  1. State of the art ABC (Aluminum piston-Brass sleeve-with Chrome plating) construction
  2. Optimized hi-velocity extra efficient 4-port sleeve design
  3. Lightened aluminum and silicone alloy piston with a dome/dish design for improved combustion
  4. Lightened & knife-edged machined aluminum connecting rod with pressurized oiling feature
  5. Vacuum cast aluminum alloy case with large cooling and reinforcement fins
  6. Stuffer type back plate with o-ring seal and machined piston relief
  7. Oversized cooling heat sink head
  8. Turbo head insert/combustion chamber
  9. Hardened steel turbo ported crankshaft with machined reliefs to prevent windage
  10. Specially constructed precision ball bearings supporting the crankshaft
  11. Composite double 0-ringed slide type carburetor with molded restrictors
  12. Easy tune high and low speed needle valves

Engine Specs

Displacement: .21 cu inches (3.5 cc)
Bore: .6402 inches (16.26mm)
Stroke: .6614 inches (16.8mm)
Practical RPM: 5,000-35,000
Weight (w/o Muffler): 13.5oz (383 g)
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