Engines

There are currently *seven* different engines in the base game, from which *five* of them can be swapped in to any car's chassis (yes, you can have a V8 engine in a LAD or an I4 engine in a Bart). The remaining two engines are mounted onto the bikes, L500 and Hardy, which instead have the ability to swap each other's engine. Engines in the game can either be built from ground up using the parts catalogue or bought from used cars. You may also find engine parts scattered across the junkyard.

* 500cc (Single cylinder)
* 1000cc V2 (V-Twin)
* 1.5L Inline 4
* 1.8L Inline 4
* 3.0L Inline 6 (Diesel)
* 3.5L Inline 6 (Slant 6)
* 5.6L V8

*Engines that are planned to release: None known as of 14th of December 2023*

## Engine Performance

The engine performance in the game is measured in horsepower and is usually determined by the dyno results in the service center. This is due to the game not displaying engine power through vehicle description, but is added once the vehicle has run on the dyno. The game's physics relating to power measurment are slightly simplified as maximum power are always determined by the vehicle's maximum RPM. Therefore, when running the vehicle on the dyno, you must red-line the vehicle to determine its full power. Vehicle's with faulty engine parts will display a lower power output and subsequently result in slower acceleration and top speed.

* **500cc:** 31.5 hp (estimated)
* **1000cc:** 50 hp (estimated)
* **1.5L Inline 4:** 80 hp
* **1.8L Inline 4:** 110 hp
* **3.0L Inline 6:** 200 hp
* **3.5L Inline 6:** 170 hp
* **5.6L V8:** 240 hp

*Note that the 500cc and 1000cc are estimated because these figures are based on their real-life counterpart*

Each engine has the ability to swap certain parts to *performance parts* that add more power to the vehicle. These upgrades can change performance significantly, however, note that driving may become more difficult as high power engines tend to make the vehicle skid.

## Engine Swap

To swap an engine that is not originally found in the vehicle of your choice, you first need to install the correct gearbox into the car's chassis, after that the engine. All the other parts will stay the same (radiator, radiator hoses etc.). In the base game you can only turbocharge both Inline 4 engines (1.5L and 1.8L), as well as the 3.0L Inline 6 diesel engine with the stock carburetors, it is NOT possible to turbocharge Inline 4 with the performance carburetor installed, without using mods.

Notably, when swapping engine in a car, the engine may appear to not fit the engine bay. This is most likely because most cars are designed after certain engine dimensions hence the LAD only come with I4 engine when purchased from the used car dealership and the Wolf's bay is designed for the 3.0L diesel engine specifically. While a V8 swap in a LAD is possible, the engine will then clip through the body but will not reduce performance or damage any parts. It will solely affect the appearance.

## Maintenance

When driving a vehicle, its fluids will slowly be consumed until it is eventually empty and certain parts will become worn after some time. Therefore, it is important to inspect fluid levels and inspects whether there are any damaged parts or not which may affect driving and engine performance.

**Engine oil:** Just like in real life, insufficient lubricant means the engine generate frictional heating and slowly weld itself and therefore cause irreversible wear. In My Garage, in case you run without oil, your engine block may become damaged and the task will become tedious since it may need replacement. Without sufficient oil, your engine may run for a few minutes but certainly will die and not able to start up again.

**Coolant:** Although coolant is poured into the radiator, its purpose is to cool the engine. Too low coolant levels means you will cook the engine and you will have to look for wear in the engine. Without sufficient coolant, your engine may run for a few minutes but certainly will die and not able to start up again.

**Fuel:** Most cars run on gasoline and is easy to monitor fuel levels (from dashboard). Empty or low fuel levels cannot cause any damage unlike coolant and oil. It is important to pay attention which engine you use since the 3.0L Diesel engine runs on diesel. Adding the wrong fuel *will not* cause any damage to your vehicle, but it will not start up. This means you will need to empty the fuel tank and add the correct fuel. It is however possible to dilute the tank with proper fuel. At least 60% of correct fuel must be added to start the vehicle.

## Issues

In case you experience issues whilst building your engine, check out the Troubleshooting page for help or check out the build guides (for 500cc, V2, I4 1.5L, 3.0D and V8 5.6L) and follow each step.