YS Engines .91SR 3DS Helicopter Engine Side Exhaust w/Fuel Injection

This is the 91SR 3DS helicopter engine from Y.S. Engines. Equipped with a new larger cylinder head for better cooling and performance. The rear bearing has been improved to increase longevity and the steel lined backplate has been redesigned to minimize drag resulting in better performance and increased horsepower. An updated piston and  sleeve design increases both performance and efficiency and the proven Regulated fuel system for positive fuel flow during all types of flight conditions. This is a super powerful 90 size engine that fits all helis that accept an O.S. 90 size engine, such as the T-Rex Nitro 700, Thunder Tiger Raptor 90 or JR Vibe 90.

Key Features
  • Long Stroke design for more power
  • New rear bearing for longevity
  • Balanced crankshaft for a smoother run
  • Pressurized and regulated fuel injection system

Displacement: 14.89cc
Bore: 27mm
Stroke: 26.0mm
Weight: 553 grams (Engine Only)

This product was added to our catalog on June 10, 2010.

Low Price: $399.99
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
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