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FG-84 R3 gas engine with electronic ignition

FG-84 R3


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Deliverytime: Week

Product Description


 Saito FG-84R3D 84cc 3-Cylinder Radial Gas Engine with Muffler

Gasoline version of the 450 3-cylinder radial

Larger displacement than the glow version

2S Li-Po battery compatible ignition without a regulator provides easy starts and reliable performance

Engine heat sink for better cooling and performance through an aerobatic routine

4-stroke sound Saito™ engines are famous for

Complete with electronic ignition, mufflers and engine standoffs

The Saito™ FG-84R3 engine is the gas/petrol version of the existing FA-450R3 glow engine. This engine is designed specifically for large models and performance airframes. Above and beyond the advantages of a 4-stroke gas engine, this is the engine for those who like to run clean and efficient engines. Accompanied by the Saito power and precision craftsmanship, the distinguished look and sweet sound, this is the engine many of you have been waiting for. This engine delivers a larger displacement than the older 450 3-cylinder radial engine, and provides easy starts and reliable performance due to the 2S LiPo-compatible electronic ignition. The designed Walbro carburetor features a rotating barrel specially made for 4-stroke engines, ensuring reliable fuel feed and outstanding performance at any attitude. Engine heat sink provides better cooling and performance through an aerobatic routine. Complete with mufflers, engine mount, and electronic ignition.


As an expert in reliable 4-stroke engines, Saito engineers spent years developing the best-built 4-stroke gas engine. The power-to-weight ratio of a Saito engine creates a one-of-a-kind flying experience. For serious modelers, the long awaited arrival of the 450R3 gas version is here with the same quality, sound and precision craftsmanship Saito is known for.


Benchmark Prop: 24 x 10 6,300 rpm

Bore: 36.0mm (1.42 in.) X 3

Carb Type: Walbro

Crankshaft Threads: M10 x 1.25

Crankshaft Type: Threaded

Cylinder Type: Ringed

Displacement: 84.3cc (5.14 cu. in.)

Engine (Only) Weight: 6.7 lbs (3.1kg)

Ignition Weight: 8.8 oz (250g)

Muffler Threads: M14

Muffler Type: Flex tube

Muffler Weight: 5.5 oz. (157g)

Oil Type & Content: 20:1 gas/oil ratio

Plug Type: CM-6

Prop Range: 23 x 10 - 24 x 10

RPM Range: 1,400 - 6,500 on ground

Recommended Fuel: 87-92 octane gasoline

Stroke: 27.6mm (1.09 in.) x 3

Total Weight: 7.8 lbs. (3.5kg) (includes engine, muffler, and ignition where appropriate)

Type: 4-stroke Airplane

Cylinders: Radial


Fuel Type: Gas

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Additional Information

Additional Information

Rating filter No
Brand Saito
Cellnumber No
cilinder 62-120cc
crate No
helisize No
multirotortype No
planetype No
spanwidth No
color No
deliverytime Week