O.S. Engine OSMG2102 18CV-RX ABC Compact Nitro Engine  [OSMG2102]

O.S. Engine 18CV-RX ABC
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Brand:
O.S. Engine
Model:
OSMG2102
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Summary of the O.S. Engine OSMG2102 18CV-RX ABC

The O.S. Engine 18CV-RX ABC, with model designation OSMG2102, is a compact nitro unit intended for 1/10 scale RC cars and trucks. It focuses on providing controllable, repeatable power for off-road and single-speed applications. The 11G dual-needle slide-valve carburetor combined with a recoil starter supports practical tuning and dependable field starting.

Suitability and Applications

Engineered to suit a wide range of ready-to-run platforms, the O.S. Engine 18CV-RX ABC copes well with the demands of rough circuits and club tracks. Its construction aims to keep weight down while maintaining strength, offering an upgrade route for vehicles like the Tamiya TNX or TGR where fitting is compatible.

Performance Summary

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 Range: 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, and muffler or tuned pipe

Delivering 1.35 hp at 28,000 rpm from a 3.0 cc displacement, the engine provides a useful power curve for competitive and hobby use. Its lightweight package at 10.4 ounces helps preserve vehicle dynamics.

The O.S. Engine 18CV-RX ABC is a sensible nitro choice for those seeking a compact, serviceable engine for 1/10 off-road models, suitable for both race days and leisure runs.

What break-in procedure is recommended?

Carry out a standard mechanical break-in with gentle runs and progressive throttling. Monitor temperatures and avoid high-RPM full-load runs until the engine beds in.

Which glow plug should I choose?

Select a glow plug that matches your fuel nitro content and running conditions. A medium heat range is a good starting point for general use.

How often should I service the air cleaner?

Service the 203 air cleaner after each heavy session or more often in dusty conditions. Clean and re-oil the foam element to maintain airflow and engine protection.

Is a tuned pipe necessary for good performance?

A tuned pipe is not mandatory but can refine midrange and top-end characteristics. Choose an exhaust that fits your chassis and intended use.

What should I inspect after a hard run?

Check mounting bolts, fuel lines, the glow plug, and the air cleaner for wear or damage. Re-torque mounts and re-check carburetor settings if handling has changed.

Can I use this engine for both racing and casual trail use?

Yes, the O.S. Engine 18CV-RX ABC is versatile enough for competitive formats and casual off-road outings, provided you set up gearing and exhaust to suit each use.

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