O.S. Engine OS-13641 21VG-X (P) .21 VG-P Performance Engine  [OS-13641]

O.S. Engine 21VG-X (P)
Price:
AUD$302.92
Brand:
O.S. Engine
Model:
OS-13641
Please kindly input your name and email address, we will inform you once we have the restocking.
Or you may find similar product under the
category
Write a review

Race-Ready O.S. Engine 21VG-X (P) for 1/8 Scale Cars

The O.S. Engine 21VG-X (P) is aimed at serious hobbyists and club racers who need a resilient, tunable .21 engine. Its components are selected to deliver steady performance across long runs.

Bi-Metallic Sleeve for Long Life

The bi-metallic liner improves adhesion between plating and base material, resulting in a more consistent piston fit and greater resistance to wear during extended use under competitive loads.

Responsive Slide Valve Carburettor Setup

With the two-needle 21F slide valve carb, drivers get sharp throttle response and straightforward mixture control, useful for tight courses and rapid direction changes.

Key Figures and Specifications

Specifications

  • Displacement: 0.211 cu in (3.46cc)
  • Bore: 0.654" (16.6mm)
  • Stroke: 0.63" (16.0mm)
  • Practical RPM: 3,000 - 36,000 RPM
  • Power Output: 2.0 ps / 30,000 RPM
  • Weight: 13.9oz (395g)

This engine is a practical choice for 1/8 scale racers upgrading from standard kits. Its robust construction and tuning range help maintain consistent lap times under race conditions.

What RPM range should I expect on track?

In normal running the engine operates effectively from around 3,000 up to 36,000 RPM depending on gearing and load, with peak output near 30,000 RPM.

Will the engine start with a pull starter?

Yes, this model is compatible with a pull starter which makes starting easier at the track and reduces reliance on external starter gear in some setups.

How should I break in the 21VG-X (P)?

Follow a gradual break-in routine with varied throttle to seat the piston and sleeve, check plug colour regularly, and keep cooling intervals between runs to avoid overheating.

What electronics pair well with this engine?

Standard 1/8 scale radio gear and high-torque servos are appropriate; ensure your exhaust and pipe match the engine characteristics for best midrange and top end.

How often should I inspect the sleeve and piston?

Inspect after initial break-in and then periodically after heavy use; watch for scoring or odd wear patterns and address air filter and fuel cleanliness to reduce wear.

Copyright © 2008-2026 rcjaz.com.au All rights reserved