
Best OS Engine products in the RC motors category
On this page you'll find a ranking of the best OS Engine products in this category. To give you a quick overview, we've already ranked the most important information about the products for you.
1. OS Engine Built-up parts Set (C&P) OS Speed B2101
Manufacturer: OS Engines.

2. OS Engine Conversion Set 91HZ-R

3. OS Engine T-2100SC Tuned Silencer only (Off-Road)
Some technical tips on manifolds: A shorter manifold performs better at top speed, whereas a longer manifold performs better in the low to middle range. A longer manifold offers better fuel mileage because you can lean the engine more, though you sacrifice top speed. The muffler and manifold combination depends on the driver's taste.

4. OS Engine FSa-72 II (61N) W/F-5030 Silencer (# 34721)
The O.S. FSa-72 II is the latest version of the popular, high-performance four-stroke engine. Updates include a revised oil venting system that now vents from the crankcase instead of the intake, improving the engine's running behavior. The rocker cover is now black, enhancing the engine's appearance when used in a scale model.
The FSa-72 II has the same mounting dimensions as the previous generation as well as the older FL-70 and FS-70U, making it easy to swap engines. Its compact external dimensions, along with its power and torque, are ideal for most models designed for 46cc two-stroke or 70cc four-stroke engines.
Like all FS series engines, the FSa II engines feature a super-smooth carburetor with anti-spit intake and an ultra-lightweight silencer. If you've had noise issues while flying, this is the engine you need for your sport model.
The 61N carburetor provides both linear and fuel-efficient engine performance, offering you reliability and precision at all RPMs.
Revised oil venting, black head for use in scale models, ultra-quiet silencer included, 61N carburetor, 1.2 HP power, displacement: 11.79 cc, stroke: 20.6 mm, bore: 20.7 mm, power: 1.2 HP / 12,000 RPM, RPM range: 2400...12,500 RPM, weight without silencer: 530 g, glow plug: OS F-Type (included), propeller recommendation: 12 x 7, 12 x 8, or 14 x 6, 14 x 7.

5. OS Engine Crankshaft O.S.Speed B21 Ongaro
Manufacturer: OS Engines.

6. OS Engine T-2100SC silencer complete set with manifold (Off-Road)
Some technical tips on manifolds: A shorter manifold performs better at top speed, while a longer manifold excels in the low to middle range. A longer manifold offers better fuel mileage because you can lean the engine more, although this sacrifices top speed. The muffler and manifold combination depends on the driver's preference.

7. OS Engine TR03 EFRA2196 + MR04 complete set (1:8 Onroad)

8. OS Engine Powerboost Pipe 55iii
Manufacturer: OS Engines.

9. OS Engine Crankshaft O.S.Speed B2104
Manufacturer: OS Engines.

10. OS Engine R2103 Piston & Sleeve
