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Heli Engines

YS 96SRX Tareq

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The 96SRX Tareq is the latest helicopter engine technology for YS. It has new stroke design for superior operation, new carburettor for easier adjustments, and factory preset fuel regulator. Expect serious power from your nitro helicopter with this YS engine!

Price: SGD$501.87
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OS MAX-55HZ Hyper Engine

OS MAX-55HZ Hyper-1

The OS MAX-55HZ Hyper Engine is best suited for 3D flight! Amazing power equal to 60 size engine changes the common knowledge of the 50 size helicopter engines!

OS MAX-55HZ Hyper Engine
Price: SGD$387.85

YS 91SRX Tareq Helicopter Engine

YS 91SRX Tareq Helicopter Engine-2
YS 91SRX Tareq Helicopter Engine-5

The YS 91SRX Tareq is a powerful engine designed for 3D nitro-helicopter pilots. It employs the latest in helicopter engine technology from YS. This engine has both new stroke design for superior operation and carburetor for easier adjustments. 

YS 91SRX Tareq Helicopter Engine
Price: SGD$464.00
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OS Max 105HZ-R Type S Engine

OS Max 105HZ-R Type S Engine-1
OS Max 105HZ-R Type S Engine-2

The OS Max 105HZ-R is the engine that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and 105HZ-R have it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern. The OS 105H-R Type S is a short shaft version designed for Hirobo Turbulence D3 V2. 

OS Max 105HZ-R Type S Engine
Price: SGD$550.24

OS Max 105HZ-R Engine with Powerboost Pipe 105

OS Max 105HZ-R Engine with Pipe 105-1
OS Max 105HZ-R Engine with Pipe 105-2

Enjoy Huge Power and Performance with the Compact 105HZ-R!
The OS Max 105HZ-R is the engine that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and 105HZ-R have it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern. 

OS Max 105HZ-R Engine with Powerboost Pipe 105
Price: SGD$668.22

OS Engine GT-15HZ gasoline engine with PowerBoost Pipe

OS GT15HZ

OS GT 15HZ's power is perfect for sport, 3D and scale pilots alike. But that’s only a part of what makes the GT15 super.

It also offers superb fuel economy, a pumped carb to deliver fuel dependably, the ease of the IG-05 Ignition module
and smooth running without constant adjustments. And since it’s about the same size as most .90 glow engines,
it’s an easy retrofit, too.

 
OS Engine GT-15HZ gasoline engine with PowerBoost Pipe
Price: SGD$598.13
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YS 120SR Helicopter Engine

YS 120SR Helicopter Engine-1
YS 120SR Helicopter Engine-5

The all new powerful YS 120SR Helicopter Engine is built with the same mounting as 90-class engines, which makes it easy to add more power to existing 90-class helicopter platforms. The 120SR is proven with factory-preset regulator for consistent, reliable operation — positive fuel flow during all conditions. Its now larger cylinder head has better cooling capabilies. Horsepower is also increased with the steel-lined back plate for minimizing drag. 

YS 120SR Helicopter Engine
Price: SGD$496.50
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OS Max 105HZ Engine

OS Max 105HZ Engine-1
OS Max 105HZ Engine-2

Enjoy Huge Power and Performance with the Compact 105HZ!
The OS Max 105HZ is the engine that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and 105HZ have it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.  

OS Max 105HZ Engine
Price: SGD$472.20
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OS Max 32SX-H Ring Engine

OS Max 32SX-H Ring Engine-1
OS Max 32SX-H Ring Engine-2

The OS Max 32SX-H is a high performance engine designed for 30 size RC helicopters that employs a compression ring equipped piston. The ringed piston/liner assembly gives a lower compression on start-up without sacrificing top end power and performance, and provides easy needle setting characteristics. It has a new design of large bore carburettor - type 20C - to provide stable hovering characteristics and more power at the top end. 

OS Max 32SX-H Ring Engine
Price: SGD$232.00

OS Max 55HZ-R Engine (Limited Edition) with Powerboost Pipe 55 II

OS Max 55HZ-R Engine (Limited Edition) with Powerboost Pipe 55 II-1
OS Max 55HZ-R Engine (Limited Edition) with Powerboost Pipe 55 II-7

This limited version of the OS Max 55HZ-R is designed for 50 size helicopters for 3D aerobatics. It has DRS (Demand Regulator System) that provides the optimal pressure of the mixture/air regardless of the position of the helicopter during flight. This package includes the Powerboost Pipe 55 II that delivers excellent high performance in the rpm range used regularly in doing maneuvers, while it secures the stability in idling and hovering. 

OS Max 55HZ-R Engine (Limited Edition) with Powerboost Pipe 55 II
Price: SGD$549.30

YS 91 SRS Engine for Helicopter

YS 91SRS Engine for Helicopter
YS 91SRS Engine for Helicopter-9

BACK IN STOCK
The YS 91 SRS is a newly developed helicopter engine with a re-designed carburetor for ease of adjustments. Now packs more power and performance.

YS 91 SRS Engine for Helicopter
Price: SGD$409.50

OS Speed 91HZ-R 3C Engine

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OS Speed 91HZ-R 3C Engine_5

The OS Speed 91HZ-R 3C Engine is designed for all-out F3C competition! It features a new Demand Regulator System (DRS) fuel regulator system.

OS Speed 91HZ-R 3C Engine
Price: SGD$550.37
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OS Max 55HZ-R Hyper Engine

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OS Max 55HZ-R Hyper Engine-11

The OS Max-55HZ-R has been developed based on the 55HZ designed expressly for 50 size helicopter models, and equipped with the new O.S. regulator system.

OS Max 55HZ-R Hyper Engine
Price: SGD$439.25

OS Max-55HZ Hyper with 40L Carburetor (Limited Edition-Black)

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OS Max-55HZ Hyper with 40L Carburetor (Limited Edition-Black) has all the wonderful features of the original OS Max-55Hz Hyper engine, only with a much more mysterious and classy Limited Edition look, coated with a special temperature resisting black coating. It features a dual needle 40L carburetor with four-arm throttle lever. On top of the wonderful remade engine, it also comes with a limited edtion black anodized PowerBoost Pipe.

OS Max-55HZ Hyper with 40L Carburetor (Limited Edition-Black)
Price: SGD$621.00

OS Max 91HZ-PS With 61E-P2 Carburettor

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OS Max-91HZ-PS With 61E-P2 Carburettor-10

The OS Max-91HZ-PS is a high performance engine expressly designed for 3D flight with 90 size helicopters based on the OS MAX 91HZ equipped with new OS PD-08 pump and regulator system.

OS Max-91HZ-PS With 61E-P2 Carburettor
Price: SGD$449.55
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OS Max 37SZ-H Ringed Engine with 20M Carburetor

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OS Max 37SZ-H Ring (20M)_10

The OS 37SZ-H Ringed Heli Engine delivers plentiful power for 3-D thrills! Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering!

OS Max 37SZ-H Ringed Engine with 20M Carburetor
Price: SGD$238.32
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OS Max 91HZ-R With 61E-R Carburetor

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Based on the multi-time FAI world champion 91HZ heli engines, OS is taking their new 91HZ-R to even higher levels of performance; thanks to the new "on demand" regulator system.

OS Max 91HZ-R With 61E-R Carburetor
Price: SGD$476.00
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OS MAX 91HZ-PS Engine with 61BP Carburettor

OS MAX 91HZ-PS with 61BP Carb-1

The new OS MAX-91HZ-PS Engine is especially designed for 3D Helicopter competition. Intended to provide steady and constant power at all times irrespective of violent attitude changes, the OS MAX-91HZ-PS Engine is equipped with a newly designed PD-08 pump.

OS MAX 91HZ-PS Engine with 61BP Carburettor
Price: SGD$432.90

YS 91SR3C 2-Stroke Helicopter Engine

YS 91SR3C 2-Stroke Helicopter Engine-1The 91SR3C is the latest in helicopter engine technology from YS designed for F3C performance flights.
YS 91SR3C 2-Stroke Helicopter Engine
Price: SGD$395.90
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YS 91ST Helicopter Engine

YS 91ST Helicopter Engine-1
YS 91ST Helicopter Engine
Price: SGD$365.40
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OS MAX 91HZ Engine with 61B Carburetor

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OS MAX 91HZ Engine with 61B Carburetor
Price: SGD$385.64
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OS MAX 91SZ-H Ring PS-Hyper Engine

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OS MAX 91SZ-H Ring PS-Hyper Engine
Price: SGD$386.10
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OS MAX 91RZ-H (DH) Ring Engine

OS MAX 91RZ Engine-1 
OS MAX 91RZ-H (DH) Ring Engine

Price: SGD$437.90
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OS MAX 32SX-H RING Engine

OS MAX 32SX-H RING-1

OS MAX 32SX-H Ring Engine

Price: SGD$237.40
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YS 91SR Heli Engine

YS 91SR Heli Engine-1
YS 91SR Heli Engine
Price: SGD$372.40