O.S. Engine OSMG2073 21VG (P) ES Tornado Head 1/8 Engine  [OSMG2073]

O.S. Engine 21VG (P) ES Engine OS-13642
Price:
£148.51
Brand:
O.S. Engine
Model:
OSMG2073
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Built for Consistency: O.S. Engine 21VG (P) ES

The O.S. Engine 21VG (P) ES, stocked as OSMG2073, targets racers who need steady, tuneable power in 1/8 scale buggies and trucks. It focuses on repeatable performance and straightforward serviceability for busy race schedules.

Manageable Power and Starter Options

Strong midrange output makes the 21VG (P) ES easy to modulate out of corners, helping drivers hold lines with confidence. The backplate accepts common starters like the DuraTraxR Kwik Pit Super Start and HPI Roto Starter, making quick starts hassle free. Long-lasting parts including the ABL piston liner and one-piece crankshaft reduce the need for frequent rebuilds.

Heat Control and Precise Jetting

The Tornado head's larger profile aids cooling efficiency while the two-needle carburetor allows careful jetting adjustments to suit conditions. With a recommended RPM span of 3,000 to 36,000 and peak power of 2.0 hp at 30,000 RPM, the engine is versatile enough for a variety of track layouts.

Specifications

  • Displacement: 0.211 cu in (3.46 cc)
  • Bore: 0.654 in (16.6 mm)
  • Stroke: 0.63 in (16.0 mm)
  • Practical RPM Range: 3,000-36,000
  • Output: 2.0 hp @ 30,000 rpm
  • Weight: 15 oz (429 g)

The O.S. Engine 21VG (P) ES is a practical performance engine for racers who value reliable power delivery and predictable tuning across a season of events.

How should I approach jetting for different weather?

Start with baseline needle settings, then lean the mixture slightly in warm weather and richen it in cooler conditions while monitoring exhaust and throttle response.

What servicing keeps the engine race-ready?

Regularly check the glow plug, clean the carburetor, inspect the liner for wear, and run fresh fuel to maintain consistent power output.

Is this model suited to both buggy and truck use?

Yes, in 1/8 applications the engine performs well in both buggies and short-course trucks when matched with suitable gearing and chassis setup.

What benefits does the ABL piston liner provide?

The ABL liner is made to improve wear resistance and maintain tighter tolerances, which helps keep performance consistent over longer running periods.

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