How much does a Car Engine Weigh & How to reduce it?

Car Engine Weight

The engine consists of different components, and the weight of the engine depends largely on the type of car.

For a small car, you would expect an engine weight of 150kg/330 pounds, while a large V8 diesel can weigh over 350kg/771 pounds.

These weights are minus the transmission, which can push the engine weight of the car down to about 600 pounds. While most Formula 1 cars are extremely fast, the engines used are light and weigh 100 kg or 210 pounds.

The Bugatti Veyron has an engine weight of 400 kg, while the McLaren F1 weighs 266 kg. The Chevy Small Block engine weighs 575 pounds, while a GM 2.0 liter weighs 300 pounds.

How to reduce your car weight

Car Engine Weight

People often modify their cars to reduce the engine weight. This is done by removing non-essential electrical parts that could put additional weight on the car. This could include removing the air conditioning compressor. This will save you an additional 10 kg. Some will go so far as to remove the car fan, heating matrix, and piping.

You can also replace your existing battery with a lighter one once you have removed the air-conditioning system and the stereo.

If you convert your car into a race car, you will need to remove the rear seats, which will save you about 25kg, and get rid of the spare wheel and jack. Electric seats weigh about 35 kg each, and you can replace them with lighter seats.

Exterior Parts

But most of the savings in the car are achieved by replacing the exterior parts with lighter parts. Most car parts such as the hood, doors, fenders and roof are made of aluminium. You can replace them with fibreglass, which is lighter.


Glass windows can be replaced by polycarbonate, which is lighter. The wheels can also be replaced with lighter ones. Lighter wheels mean a reduction in rotational mass, which reduces the pressure on the suspension. In the end, you will experience faster acceleration.

You can make considerable savings by reducing the amount of fuel in the fuel tank. But make sure you have enough fuel to get around.

Many cars today are equipped with hoods made of carbon fibre. This looks good for the car, but you need to find one that is of good quality and complements the other car parts. Once you have removed the rear seats and replaced the windows with polycarbonate ones, the next step is to add a roll cage. This will keep your lightweight car rigid, but at the same time keep you safe. The roll cage adds a few pounds to your car – which you are trying to remove – but it also helps with handling the car.

Drilling holes

In extreme cases, there are those who try to reduce the weight of the vehicle by drilling holes in the metal parts. However, this makes the car less rigid and increases the probability of it rolling. Additional weight savings can be achieved by removing the door hinges and locks.

Not all engine components are necessary for the car to move. The engine block itself is heavy and there are only a few modifications that can be made there. However, you can choose to drive without the benefits of air conditioning. The alternator, flywheel, and water pumps increase the weight of the engine considerably, but they are essential components. You can replace the factory-made alternator with a light one and save a few pounds.

Engine weight Vs. Performance

Car Engine

It is generally accepted that the larger the engine, the better the performance. Large engines are often installed in high-performance cars and provide faster acceleration and top speed. But heavier engines also affect braking performance, handling, and cornering. The more a car engine weighs, the less control it has over transitions and lane changes.

A large engine requires larger springs to control the weight. This in turn makes the car heavier. The wheels also need to be changed to handle the extra weight and ensure good traction. Instead of producing larger engines, they have now been adapted for turbos, which makes them more efficient. Manufacturers produce smaller engines, but can get more horsepower out of them. This means that the total weight of the car is kept low while the power is increased.

According to research by the US Department of Energy, a reduction in vehicle weight results in a reduction in fuel consumption of 1 to 2% per 100 pounds. More fuel is needed to move a heavy car. If you want to reduce vehicle weight, look for lightweight components. If you have two cars – a small one and a heavier one – the small car will get faster for every 100 pounds less weight. Removing the cargo brackets helps the car’s aerodynamics. It also reduces fuel consumption by up to 17%.


The weight of the car engine varies, but the average for most sedans is about 300 pounds. The engine block is connected to other parts to make it efficient, such as the water pump, transmission, and electrical components that can increase the overall weight of the engine. Many car lovers have realized that a lighter car is a fast car.

By replacing the car windows with polycarbonate, you can save a few pounds. In most racing cars, some luxury parts of the car have been removed. These include the air conditioning, rear seats, spare tire, jack and alloy wheels. A light car uses less fuel.

It is thought that the bigger the engine, the better the performance, but manufacturers get more horsepower out of small engines. You can also increase the engine power by installing a turbocharger. The combustion engine works by burning the air-fuel mixture.

If more air enters the chambers, you have more power. You will need to modify the air intake parts to accommodate the turbocharger. Car owners are advised to reduce the use of the external load compartment if they want to achieve fuel savings. This is because the cargo holders affect the aerodynamics of the car. Avoid carrying excess cargo or passengers as this will affect the aerodynamics of the car.

Written by: Magnus Sellén

Founder, owner & main author of Mechanic Base. I have been repairing cars for more than 10 years, specialized in advanced diagnostics & troubleshooting. I have also been a drifting driver and mechanic for over 7 years.