Evolution Gas Engines

Big scale pilots can now experience the ease and efficiency of Evolution with this new line of reliable gas engines. Each engine is purpose-built for model airplanes with superior porting technology and a proven new electronic ignition system that provides the same no-fuss flying that Evolution's glow engines are famous for.

Features:

• Same no-fuss reliability as Evolution's glow engines
• Compatible with existing motor mounts
• Easy-to-start electronic ignition systems
• Superior porting
• Factory-set Walbro carburetors for quick first starts
• Ball bearing supported crankshafts

Evolution 26GX (1.6) Gas Engine

Part #	26GX
Displacement:	1.55 cu in (25.5 cc)
Bore:	1.20 in (33.0mm)
Stroke:	1.17 in (30.1mm)
Weight:	33 oz (936g)
Prop Range:	16x8-18x8
RPM Range:	1,400-9,500

• Lower profile design for more clearance and easier installation in smaller cowls
• Redesigned carburetor with quick release choke
• Ready for 2-cell Li-Po ignition packs

Gas pilots looking to power their 1.20 or 1.80 sport or scale airplane will find the Evolution® 26GX to be the engine of choice. Its attractive, low-profile head design lets the 26GX squeeze into smaller cowls. Plus, the advanced ignition system allows 2-cell Li-Po packs.  It also features an updated carburetor with a spring-loaded choke design for easier operation.

This purpose-built engine brings the clean and economical operation of gas to any 1.20- or 1.80-size sport or scale airplane.

The Evolution 26GX is part of Evolution’s outstanding line of gasoline powerplants. Every Evolution engine is purpose-built for model airplanes. Superiority porting technology, Walbro carburetors, ball-bearing supported crankshafts and modern electronic ignition systems are all hallmarks of the line. As with all Evolution engines, the 26GX engine is backed by Horizon Hobby’s unmatched customer service and quality assurance.

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Evolution 35GT2 (2.15) Gas Engine GT

Bisson Mufflers for the 35GT2

Part #	35GT2
Displacement:	2.15 cu in (34cc)
Bore:	1.39 in (35.5mm)
Stroke:	1.38 in (35.2mm)
Weight:	52.0 oz (1474g)
Prop Range:	18x8-21x10
RPM Range:	1,400-9,000

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Evolution 40GX (2.4) Gas Engine

Part #	40GX
Displacement:	2.40 cu in (40cc)
Bore:	1.5 in (38.0mm)
Stroke:	1.38 in (35.0mm)
Weight:	51.2 oz (1451g)
Prop Range:	20x8-22x10
RPM Range:	1,500-9,500

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Evolution 45GX2 (2.6) Gas Engine GX

Bisson Mufflers for the 45GX2

Standoffs

Part #	45GX2
Displacement:	45cc/ 2.6 cu in
Bore:	38mm
Stroke:	38mm
Weight:	1290g / 45.5 oz
Prop Range:	Two blade: 22x10, 22x12, 22x14, 23x8, 23x10, 23x12, 24x8, 24x10, 24x12 Three Blade: 21x10, 21x12, 22x8, 22x10
RPM Range:	1000-75000 rpm

• For 50cc 27% scale models
• Easy-to-start electronic ignition
• Superior Porting
• Specially engineered for ease
• Preset Walbro carburetor
• Same no-fuss reliability as Evolution's glow engines
• Includes everything needed for installation

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Evolution 50GX (3.1) Gas Engine

Part #	50GX
Displacement:	3.0 cu in (50cc)
Bore:	1.57 in (40mm)
Stroke:	1.50 in (38mm)
Weight:	53 oz (1530g)
Prop Range:	22x10 to 24x10

• Phenomenal power in a 50cc package
• Field-proven, Li-Po-ready ignition system
• Rear intake design for higher power outputs

The Evolution 50GX is a 50cc gasoline powerplant engineered and manufactured specifically for giant-scale and 50cc class aerobatic airplanes. Its new porting design provides very high power-to-weight and power-to-size ratios while the rear intake design provides higher power outputs. Consumers interested in more power will be pleased to know the Evolution 50GX is among the most powerful in its class. In fact, the 50GX has been tested against the competition, and has been found to have considerably more than other 50cc engines on the market. And, because this engine uses common mounting methods, it is easy to adapt to both existing and new aircraft designs. This purpose-built engine will give 27% to 33% planes the power for spirited, unlimited 3D performance.

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Evolution 58GX2 (3.6) Gas Engine GX

Bisson Mufflers for the 58GX2

Standoffs

Part #	58GX2
Displacement:	3.6 cu in (58.2cc)
Bore:	1.65 in (42mm)
Stroke:	1.65 in (42mm)
Weight:	64.42 oz (1820g)
Prop Range:	22x10-26x10
RPM Range:	1,000-7,500

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Evolution 80GX (4.9) Gas Engine

Part #	80GX
Displacement:	4.9 cu in (80cc)
Bore:	1.89 in (49mm)
Stroke:	1.73 in (44mm)
Weight:	78.3 oz (2220g)
Prop Range:	26x10 to 27x10

• Best-in-class cylinder porting technology results in unequalled power
• Field-proven, Li-Po-ready ignition system

The Evolution 80GX is a 80cc gasoline powerplant engineered and manufactured specifically for giant-scale aerobatic airplanes. Its new porting design provides very high power-to-weight and power-to-size ratios while the rear intake design provides higher power outputs. Consumers interested in more power will be pleased to know the Evolution 80GX is among the most powerful in its class. In fact, the 80GX has been tested against the competition, and has been found to have considerably more power per cc than other comparable engines on the market. And, because this engine uses common mounting methods, it is easy to adapt to both existing and new aircraft designs. This purpose-built engine will give 33% planes the power for spirited, unlimited 3D performance.

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Evolution 116GX2 (7.1) Gas Engine GX

Standoffs

Part #	116GX2
Displacement:	116cc/ 7.1 cu in
Bore:	42mm
Stroke:	42mm
Weight:	3100g/ 6.8 lb
Maximum Power Output:	14 hp/ 6400 rpm
RPM Range:	1000-7500 rpm

The 116GX is Evolution's first-ever twin-cylinder power plant, and what a power plant it is. In addition to Evolution's proven electronic ignition and advanced porting, the 116GX features new CON-JET induction technology unavailable on any other gasoline fired 2-stroke twin. This advanced technology lets the 116GX swing a huge 30 x 10 Mejzlik prop at 6,100 rpm, giving any 35% IMAC machine or huge scale replica virtually unlimited power potential.

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Evolution 152GX (9.3) Gas Engine

Part #	152GX
Displacement:	152cc/ 9.3 cu in
Bore:	48mm
Stroke:	42mm
Weight:	3530g/ 124.5 oz
Prop Range:	30x10 - 32x12
RPM Range:	1,500 - 6,000

• True powerhouse for your 40% airplane
• Swings a 28.5 x 12 three-bladed Mejzlik propeller at 5650rpm

The Evolution 152GX is a 152cc twin gas performer in the Evolution line of brutally powerful gas engines. This powerplant has been engineered and manufactured specifically for large-scale and aerobatic airplanes. Its porting design provides very high power-to-weight and power-to-size ratios while the rear intake design provides higher power outputs. If you are interested in more power for your 40% airplane, you will be pleased to know the Evolution 152GX is among the most powerful in its class. And, because this engine uses common mounting methods, it is easy to adapt to both existing and new aircraft designs. This purpose-built engine will give 40% planes the power for unlimited performance.

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Engine Standoffs

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Engine Oil

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Engine Gas Starter Kit

Incudes everything you need to make your introduction to gas engine operation successful

• Ratio Rite™ mixing cup
• 1 quart Evolution 2-cycle oil
• Evolution® kill switch
• Fueling dot
• Fuel line filter
• Gasoline fuel tank stopper
• 3-foot Tygon fuel line
• Fuel line keepers

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Learn more about Evolution Engines here