HORIZON Evolution 20GX2 20cc Gas Engine (with pumped Carb)

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HORIZON Evolution 20GX2 20cc Gas Engine (with pumped Carb)

Since the release of the Evolution® 10GX small-block engine, countless modelers have discovered the benefits of gas power in aircraft formerly dominated by the .40-size glow engines. But what about the pilots who enjoy even larger airplanes in the .91- to 1.20-size range?

Bring the fuel efficiency and easy operation of a gas engine to your sport flying experience with the Evolution 20GX engine. Its new pumped carburetor makes fuel flow uniform and consistent regardless of fuel tank location and makes needle valve adjustment easier. It’s been designed with a standard beam mount and dimensions that allow it to fit anywhere you might use a .91- to 1.20-size glow engine. The 20GX will breathe new life into models designed for glow power. It’s also remarkably lightweight, even with the ignition system and battery. But what sets the 20GX apart from its nitro-fueled counterparts is its phenomenal fuel efficiency. It takes only 30% of the gas/petrol to run the 20GX the same amount of time it would to run a comparably sized glow engine. That’s an amazing efficiency level that results in a cost per flight difference of 90% on average to you.

All of the Evolution brand gas engines are designed from the start to provide you with excellent performance at a fraction of your previous operating costs. We have painstakingly designed each engine to insure a hassle free experience without giving away anything in expected performance or durability.


    Pumped-carburetor for greater reliability and ease of installation
    Reliable fuel system-easy to tune and efficient
    Outstanding power and performance for demanding RC pilots
    Lightweight construction based on the Evolution® 1.20NX glow engine
    Standard .91 size beam mount allows for traditional mounting
    Gasoline fuel delivers low operational cost and simplicity
    Outstanding power and performance for demanding RC pilots
    2S Li-Po battery compatible ignition without a regulator provides long run times
    Lightweight electronic ignition provides easy starts and superior reliability
    Single prop nut attachment convenience
    In-cowl muffler included
    Supplied with fuel tubing and filters that handle gasoline and the high operating temperatures of a gasoline engine


    Benchmark Prop:     APC 16x6
    Bore:     1.20 in (30.5mm)
    Carb Type:     Evolution Pumped
    Crankshaft Threads:     5/16 - 24
    Crankshaft Type:     Threaded
    Cylinder Type:     Ringed/Steel Liner
    Cylinders:     Single
    Displacement:     1.20 cu. in. (20.00 cc)
    Engine (Only) Weight:     25.2 oz (714 g)
    Fuel Type:     Gas
    Ignition Weight:     3.5 oz (99 g)
    Muffler Threads:     4mm Screws
    Muffler Type:     Inverted Wraparound
    Muffler Weight:     5.2 oz (148 g)
    Oil Type & Content:     20:1 synthetic
    Plug Type:     1/4 - 32
    Prop Range:     15x6 to 17x8
    RPM Range:     1,800-10,000
    Recommended Fuel:     87-91 octane gasoline (petrol)
    Stroke:     1.10 in (27.9mm)
    Total Weight:     33.9 oz (961 g)
    Type:     2-stroke Airplane

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