TOYAN V4 Engine Four Cylinder Four Stroke Methanol RC Engine FS-V400A

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TOYAN V4 Engine Four Cylinder Four Stroke Methanol Engine FS-V400A Full Edition Engine Without T Plug Battery and Electrical Rotor for 1:10 1:12 1:14 RC Car Ship Plane

Note: this is a customized engine, which takes a month to produce. pls contact me in advance to check the stock first before you place the order. my email is

latest FS-V400A Photo:

GOOD NEWS: Water Cooling Version is coming soon. Learn More from

About Four-stroke engine

Four Stroke Cycle Engines. A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes (intake, compression, power, and exhaust) to complete one operating cycle. The piston make two complete passes in the cylinder to complete one operating cycle.

  1. Intake stroke: The piston moves downward to the bottom, this increases the volume to allow a fuel-air mixture to enter the chamber.
  2. Compression stroke: The intake valve is closed, and the piston moves up the chamber to the top. This compresses the fuel-air mixture. At the end of this stroke, a spark plug provides the compressed fuel with the activation energy required to begin combustion.
  3. Power Stroke: As the fuel reaches the end of it’s combustion, the heat released from combusting hydrocarbons increases the pressure which causes the gas to push down on the piston and create the power output.
  4. Exhaust stroke: As the piston reaches the bottom, the exhaust valve opens. The remaining exhaust gas is pushed out by the piston as it moves back upwards.

What are four stroke engines used for?

The four-stroke engine is the most common types of internal combustion engines and is used in various automobiles (that specifically use gasoline as fuel) like cars, trucks, and some motorbikes 

Why is 4 stroke engine better?

Two-stroke engines don't live as long as four-stroke engines. The lack of a dedicated lubrication system means that the parts of a two-stroke engine wear-out faster. Two-stroke engines require a mix of oil in with the gas to lubricate the crankshaft, connecting rod and cylinder walls.


.Small size and large horsepower: Weighing 1150g, need 7.4V or 11.1V battery start, the battery needs to be T-plug, the female head is on the engine end, and the electric rotor is needed.

.Fuel:The electric rotor is a general-purpose product, using methanol fuel, this kind of fuel formula is generally: 20% castor oil, nitromethane 5-30%, the rest is methanol; this product does not require high concentration methanol fuel, and can be used at a concentration of 20-25%.

.Working Principle: Using methanol as fuel. The process of moving from one end of the cylinder to the other when the piston reciprocates within the cylinder is called a stroke. The four-stroke engine is divided into an intake stroke, a compression stroke, a power stroke, and an exhaust stroke

.For Age: 14 years old or older; adapt to 1:10, 1:12, 1, 1:14 remote control car, remote control ship, remote control aircraft, etc., can also be converted into an educational kit for display and education

1. Do not touch the fan after starting to avoid scratching.
2. Do not touch the cylinder wall to avoid burns.
3. This model doesn't run on petrol or gasoline.


.Color: As Shown
.Material: Plastic + Metal
.Engine Dimensions: 113.37 x 97.54 x 100.9mm
.Cylinder Diameter: 17mm
.Piston Diameter: 16.6mm
.Displacement: 3.5cc x 4
.Output Power: 3.2zzps horsepower
.Speed: 2500-9600rpm
.Needle valve debugging 3.5 laps, idle mixture 3.5 laps, idle speed throttle minimum 2.5mm
.Product Dimensions: 15 x 15 x 15cm
.Product Weight: 1150g
.Package Dimensions: 11.37 x 9.75 x 10.09cm
.Package Weight: 2000g
.Packing: Box

Package Content:

.1 x Engine(Without T Plug Battery and Electrical Rotor)

Customer Reviews

Based on 4 reviews
Chris H
V4 upgraded version is just awesome !!!

Yesterday the new upgraded FS-V400A beast arrived I did not have the time to start it up yet, but just by the looks and build quality that thing is awesome. Comes now in a wooden crate and with the integrated brushless starter-motor it´s now so much more compact and easier to install. I had to make a test-stand for it since that is now gone with the update but what are u gone do with it afterwards anyway. Can´t wait to build the pipes and all for it to hopefully soon precede the marriage with my 5th scale 1965 Mustang build project. I can highly recommend to anyone looking for excellent fast responding customer service.

V4 engine a real great piece

The engine runs great and-easy set up , a tough little engine a must have , looking forward to the future toyan engines, Mona cai was very helpful to get all the orders sent out and taken care of quickly!

Toyan V4 engine

Excellent build quality and item. Going to be great engine for the car i will be making. Also a excellent fast service.
Would recomend to anyone looking for a excellent service,

Great little engine, indeed !

I am going to replace the original FS100A engine of the Stirlingkit 8x8 Army Truck by this beauty.

In addition, this engine will receive a special multi-chamber low pass muffler, so that it will really sound like a full scale truck.

Once completed; I will let you know here and on Youtube.