Fly RC Magazine WE LIVE RC
The Evolution 20GX is a 20cc small block gasoline engine designed for .90- to 1.20-size airplanes. 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. It’s also remarkably lightweight, even with the ignition system and battery. With the included 2S LiPo ready electronic ignition and crankcase pressure type carburetor, easy starts and tuning are a breeze, allowing you to take the model to the air in no time.
Key Features
- Lightweight construction based on the Evolution® 91NX glow engine
- Outstanding power and performance for demanding RC pilots
- Gasoline fuel delivers low operational cost and simplicity
- Lightweight electronic ignition provides easy starts and superior reliability
- 2S Li-Po battery compatible ignition without a regulator provides long run times
- Standard .91 size beam mount allows for traditional mounting
- In-cowl muffler included
- Single prop nut attachment allows the use of any stock propeller and convenience while at the flying field
- Supplied with fuel tubing and filters that handle gasoline and the high operating temperatures of a gasoline engine
Specs
| Fuel Type: | Gas |
|---|---|
| Cylinders: | Single |
| Displacement: | 1.20 cu. in. (20.00 cc) |
| Type: | 2-stroke gas airplane engine |
| Bore: | 1.20 in (30.5mm) |
| Stroke: | 1.10 in (27.9mm) |
| Cylinder Type: | Ringed/Steel liner |
| Plug Type: | 1/4-32 |
| Total Weight: | 33.6 oz (958 g) |
| Engine (Only) Weight: | 24.9 oz (708 g) |
| Muffler Weight: | 5.2 oz (150 g) |
| Ignition Weight: | 3.5 oz (100 g) |
| Crankshaft Threads: | 5/16-24 |
| Muffler Threads: | M4 |
| Benchmark Prop: | 16 x 6 @ 8,850 rpm |
| Prop Range: | 15 x 6 to 17 x 8 |
| RPM Range: | 1,800-10,000 |
| Fuel: | 87-91 octane gasoline (petrol) |
| Oil Type & Content : | 20:1 synthetic |
| Muffler Type: | Wraparound in-cowl muffler |
| Carb Type: | Regulated with Muffler Pressure |
