Murnan Modified O.S. Speed B2104 Combo with TB03 03 Exhaust

Murnan Modified O.S. Speed B2104 Combo with TB03 03 Exhaust
Product Code: MMB2104C
Availability: In Stock
Price: $679.00
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The Murnan Modified OS Speed B2104. This engine makes awesome power for buggy, or Truggy. Comes with the TB03 complete Exhaust Kit. 

The Murnan Modified O.S. Speed B2104 

  • The piston/liner is a conventional 3-port type enabling more torque over the power range
  • The crankshaft has DLC coating
  • The crankshaft is tungsten balanced 
  • The backplate with steel insert embedded in the cover plate reduces friction against a connecting rod to extend its life
  • The boost port and the exhaust port of the crankcase are redesigned for optimum air flow
  • The carburetor is the 22E type, which provides very easy tuning 
  • The cooling head is conventional round-shape type with standard height
  • The crankshaft, and sleeve have been further modified to optimize power, and runtime while maintaining a very easy to tune engine. 
  • Displacement 3.49cc / 0.213
  • Bore 16.27mm / 0.641 in.
  • Stroke 16.80mm / 0.661 in.
  • Output 2.79hp / 34,000 r.p.m.
  • Practical rpm range 4,000-43,000 r.p.m.
  • Weight 351g
  • Designed to use 25-30% Nitro Fuel


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