Toyan RS-S100 Single Rotor Rotary Engine Mini Internal Combustion Engine Model

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 Note: Toyan single rotary engines are sold out and have no stock now. we are planning to only produce another 50pcs this time. It takes 30days to produce it. I recommend you buy the twin rotary engine first because it has 23pcs left. click here to buy. Anyone who orders it first during this period can save up to 100$usd. (remember to use the promo code: R100) After the 50pcs are sold out, the price will arise then. All the orders will be sent out in August  as it takes time to produce and test. thanks again for your understanding. any problems please email

The single rotary engine has no stock now, please wait patiently. Thanks for your understanding. 

The single rotary engine is water-cooled engine,  it does not include the heat sink now and it is too late. We will inform you about the progress of the heat sink in the near future.

As we all know, the rotary engine uses an eccentric rotary design to convert pressure into rotating motion and has no reciprocating mass, like valves or pistons in a traditional engine, which leads to an incredibly balanced engine with smooth power delivery, and the ability to rev high without concern of things like valve-float.
Rotary engines are high-revving and can produce a lot of power in the right hands. They are easy to modify, customize, and build, and you can do so pretty inexpensively to create a fast car. That's why it's so special.

The rotary engine is an early type of internal combustion engine, usually designed with an odd number of cylinders per row in a radial configuration, in which the crankshaft remained stationary in operation, with the entire crankcase and its attached cylinders rotating around it as a unit. Its main application was in aviation, although it also saw use before its primary aviation role, in a few early motorcycles and automobiles.

1. The rotary engine newly developed by TOYAN has the characteristics of Miniature, compact, lightweight, smooth-running and virtually vibration-free! Ideal for boosting power in rc model cars and airplanes, reducing the weight of mid-size cars and airplanes, and providing reliable, user-friendly service in any application scenario.

2.6-grade precision 30-tooth internal gear and 20-tooth external gear, steel flywheel, reinforced crankshaft. Good wear resistance and high pressure bearing capacity make it a very stable and powerful power option.

3. The rotor is made of high-precision alloy material, with a triangular rotor with rounded sides and a high wear-resistant diamond seal design, and the triangular tip slides along the wall of the chamber to ensure good sealing.

4. Single carburetor design, easy to adjust, sensitive throttle response, increasing airflow can provide more power. Removable straight exhaust pipe design allows subsequent installation of a muffler pipe for increased installation versatility and quiet operation.

5. This will be a great gift for rotary engine lovers, it will bring you more exciting experience, it can be played on the desktop, but also can be applied in various rc model scenarios, more applications are waiting for you with strong hands-on ability to develop. 6. Precautions for product use: The product does not include starting ignition accessories, please purchase it separately. The product is not a simple toy, it has certain technical requirements and hands-on ability. Please operate it carefully according to the instructions to avoid damage to the machine or danger.

 want to know more stories of the toyan rotary engine? click


Product parameters:

material: metal;

color: as shown;

brand: TOYAN;

model: RS-S100;

product form: finished version;

displacement: 2.46cc;

number of rotors: single rotor;

carburetor: single carburetor ;

Compression ratio: 8.2/1;

Speed: 3000-16500rpm;

Power: 0.72ps@14800rpm;

Weight: 415g (bare metal);

Lubrication method: Premixed oil;

Cooling method: Water cooling;

-3S lithium battery;

fuel: 20-25% nitro fuel;

suitable for age: 14+;

packing method: gift box;

packing list:

rotary engine*1,

instruction manual*1


Customer Reviews

Based on 1 review
CHAN Hong Ling Jacky
The smallest water-cooled rotary engine in the world

Just within 2.5c.c., believed this is the smallest water-cooled nitro fueled rotary engine available in a commercial operated source, made of high-quality material with advance CNC technology, the center piece looks like using CNC wire-cut machine to turn out the shape, it comes together with 2 piece of soft gasket for service replacement. From factory specification, it can rev. up to nearly 15,000RPM under load, no doubt that this high performance water-cooled rotary engine can be used on model boat application.