O.S. Engine OSMG2083 21TM with T-Maxx Manifold Upgrade  [OSMG2083]

O.S. Engine 21TM w/T-Maxx Manifold
Price:
AUD$360.66
Brand:
O.S. Engine
Model:
OSMG2083
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Practical Power Upgrade for Road and Off-Road

The O.S. Engine OSMG2083 21TM with T-Maxx manifold is built to give model drivers more usable horsepower while remaining straightforward to fit. Its gains over the 18TM are focused on displacement and throttle response, not on complex installation demands.

Designed for Straight Swap Installs

O.S. retained the mounting pattern so the 21TM can be retrofitted where earlier models sat. Manifolds are supplied to work with both pull-start and EZ-Start arrangements, making field changes easier.

Precise Needle Tuning and Dependable Glow

The 3-needle carb lets you tune low, mid and high speed mixtures for specific surfaces or gearing. The included LC3 glow plug supports repeatable starts and steady running during sessions.

Specifications

  • Displacement: 0.208 cu in (3.41 cc)
  • Bore: 0.669 in (17.0 mm)
  • Stroke: 0.590 in (15.0 mm)
  • Practical RPM: 3000-35,000
  • Output: 1.8 hp @ 29,000 rpm
  • Weight: 8.57 oz (243 g)
  • Includes: 11K-R carb (Revo)/11K carb (T-Maxx), LC3 glow plug

The O.S. Engine OSMG2083 21TM with T-Maxx manifold is a straightforward, tunable option for enthusiasts who want a dependable upgrade for both competitive runs and casual weekend use.

Will this engine run on standard 1/10 fuel blends?

Yes, the 21TM runs on common nitro fuel mixtures used in 1/10 scale racing. Use a fuel with the recommended oil content and test mixture during tuning to protect the top end.

Can I use the existing manifold from my 18TM?

O.S. supplies manifolds matched to the 21TM. While some older manifolds may fit physically, using the correct 21TM manifold ensures best flow and throttle response.

What regular maintenance does the 21TM need?

Check the glow plug, clean air filters, inspect clutch components and verify needle positions after each session. Replace worn items to keep performance consistent.

Is the LC3 glow plug the best choice for all conditions?

The LC3 provides reliable starts for a wide range of temperatures. In extreme climates you may choose a hotter or cooler plug, but the LC3 is a solid general-purpose option.

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