O.S. Engine OSMG2105 18CV-RX (S) ABC Performance Nitro Unit  [OSMG2105]

O.S. Engine 18CV-RX (S) ABC
Price:
AUD$0.00
Brand:
O.S. Engine
Model:
OSMG2105
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Designed for High RPM Off-Road Use

The O.S. Engine 18CV-RX (S) ABC, model OSMG2105, is a compact nitro engine intended for 1/10 scale off-road cars and trucks. It balances responsive throttle characteristics with a form factor suited to tight engine bays.

Fuel Control and Starter Convenience

This engine uses an 11J dual-needle rotary carburetor to let you dial in idle and full throttle behavior. The short crank layout simplifies installation and the recoil starter provides reliable starts without extra equipment.

Specs That Matter

Displacement is 0.18 cu in (3.0 cc) with a bore of 0.629 in (16.0 mm) and stroke of 0.590 in (15.0 mm). The practical RPM band runs from 3,000 to 32,000 and peak output is 1.35 hp at 28,000 rpm. Weight comes in at 10.4 oz (296 g).

Specifications

  • Displacement: 0.18 cu in (3.0 cc)
  • Bore: 0.629 in (16.0 mm)
  • Stroke: 0.590 in (15.0 mm)
  • Practical RPM: 3,000-32,000
  • Output: 1.35 hp @ 28,000 rpm
  • Weight: 10.4 oz (296 g)
  • Includes: 203 air cleaner
  • Requires: glow plug, manifold, muffler or tuned pipe

Ideal for hobbyists upgrading their 1/10 off-road kit, the O.S. Engine 18CV-RX (S) ABC delivers a lightweight, rev-friendly solution for spirited driving.

How do I select a compatible manifold and muffler?

Match the manifold flange and outlet orientation to your chassis and choose a muffler or tuned pipe that fits your mounting space. Confirm clearances for shock towers and body posts.

What are good routine checks to keep the engine healthy?

Regularly inspect the air cleaner, check for fuel leaks, monitor glow plug condition and ensure cooling fins are free of debris to maintain consistent performance.

Can I use this engine in on-road and off-road setups?

The engine suits many 1/10 applications; ensure your chassis and cooling setup are appropriate for the driving style you plan to use.

Is a recoil starter better than electric start for field use?

A recoil starter offers simplicity and fewer components to fail on the field, while electric start systems add convenience at the cost of extra weight and wiring.

What should I consider for carb tuning at different elevations?

Changes in air density affect mixture. Adjust needles gradually and monitor throttle response and temperature to find the right setting for your local conditions.

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