OS Engines Speed Tuned B2104

OS Engines

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The O.S. Speed B2104 Buggy Competition Engine gives you the advantage and options expected of a competition grade power plant. O.S. has created a product that will evolve to meet driver preferences and course layout.

This model has a re-designed crankcase, engraved with the O.S. Logo featuring an updated cooling fin with enough surface area for effective heat dissipation that gives the buggy engine a powerful look. The crankshaft has been updated to optimize the rotational mass and follows the O.S. SPEED tradition with a DLC coating to reduce friction, dual tungsten slugged counter-balance and a ceramic rear bearing to reduce vibration and increase RPM. The inner head has a silicon O-ring for improved vibration reduction and better dust resistance, and a five port sleeve that will perform well at medium and high speed ranges.

  • Crankcase with engraved "O.S." Logo
  • 3 ports liner
  • Silicon Inner Head O-Ring
  • 22E carburetor for quick response and smooth acceleration
  • Ball link in carburetor is new to allow changes in the position of fixing screw for easy access
  • DLC Coated Crankshaft with Tungsten weights and potted with silicone
  • Includes P3 turbo plug
  • Two Venturis (6mm & 6.5mm)
  • Dust cap set.

Technical Specifications:

Displacement: 3.49cc

Carburetor Type: 6mm Slide

Material: Aluminium

Adjustment Needles: 4

Glowplug Type: Turbo

Exhaust Position: Rear

Fuel Type: 16% or 25%

Bore: 16.27mm

Stroke: 16.80mm

Pratical RPM: 4,000-42,000

Output: 2.64hp @ 34,000 RPM

Weight: 352g

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