The DLE 170 Petrol Twin Engine is a high-performance powerhouse designed for serious giant-scale RC aircraft and demanding aerobatic pilots. Delivering an impressive 17.5 horsepower from its 170cc twin-cylinder design, the DLE 170 offers enormous thrust, smooth power delivery and exceptional reliability for large 3D, IMAC and scale models.

With horizontally opposed cylinders for naturally low vibration, a lightweight crankcase, and advanced CNC-machined components, the DLE 170 achieves an excellent power-to-weight ratio for its class. The engine features three crank bearings, double V-type reed valves, and a customised carburettor for consistent fuel delivery and precise throttle response.

Complete with electronic ignition, dual mufflers, mount, standoffs, and full hardware, the DLE 170 offers outstanding value and proven performance. Designed for pilots who demand smoothness, power and durability in the 150–200cc range.

Key Features

• 17.5 horsepower for extreme thrust and large-scale performance

• 170 cc twin-cylinder boxer layout for ultra-smooth running

• Three crank bearings for strength and reliability

• Double V-type reed valves with bottom induction

• Automatic electronic ignition for easy starting

• Customised carburettor for precise fuel metering

• Lightweight special alloy crankcase

• Advanced CNC-machined components

• High-quality sealed bearings

• Includes mufflers, mount, standoffs and hardware

• Excellent power-to-weight ratio

• Ideal for giant-scale, 3D and IMAC aircraft

Perfect For

• Giant-scale aerobatic models

• 33–40% 3D aircraft

• Big IMAC competition models

• Large-scale warbirds

• Pilots needing maximum power with low vibration

Product Summary

A lightweight, high-output 170cc twin petrol engine delivering 17.5 hp with smooth running and superb reliability. Complete with ignition, mufflers and mounting hardware.

Specifications

• Stock Number: DLEG0170

• Displacement: 170 cc (10.37 cu in)

• Bore: 52 mm (2.05 in)

• Stroke: 40 mm (1.57 in)

• Weight: 4.11 kg (9.06 lb)

• RPM Range: 1,100–9,000

• Output: 17.5 hp @ 9,000 RPM

• Compression Ratio: 9.5:1

Fuel & Ignition:

• Fuel: Unleaded petrol + 2-stroke oil (30:1 mix)

• Ignition Battery: 4.8–6.0V NiCd/NiMH, 6.6V LiFe or regulated 2S LiPo

• Replacement Spark Plug: NGK CM6 (DLEG5510)

Weight Breakdown:

• Engine: 3,550 g (7.83 lb)

• Exhausts (pair): 200 g (7.05 oz)

• Ignition Module: 160 g (5.64 oz)

Suggested Propellers:

• 30×12

• 32×10

Included in the Box

• DLE 170 Twin Petrol Engine

• Electronic ignition system

• Dual mufflers

• Engine mount

• Spark plugs

• Gaskets and bolts

• Machined aluminium standoffs

• Throttle arm extension

• Mounting template

• Instruction manual

Why Buy From ProBuild Aircraft Ltd

• ✅ Official UK DLE Stockist – 100% Genuine Engines

• ✅ Trusted by Top International RC Pilots

• ✅ Fast UK Shipping & Secure Packaging

• ✅ Expert Petrol Engine Advice & Support

• ✅ Trusted by Pilots Since 1993