Just saying the words turbocharger is exciting for most petrol heads, but the noise they make is even better. As petrol heads ourselves, we have a special place in our hearts for a turbocharged engine. But many drivers still don’t fully understand what a turbo is or what it actually does in a car.
What is a turbo and what does it do?
Turbo engines are highly popular in modern cars. Formed of two main parts — a turbine and a compressor — turbocharged engines take in air at higher atmospheric pressure, allowing them to burn more fuel and produce more power than a regular naturally aspirated engine.
By using energy from the exhaust gases that would otherwise be wasted, a turbocharger helps improve engine efficiency and performance without dramatically increasing engine size.
Are turbos a good thing?
Although turbocharged engines can be more complex and may require additional components to function properly, there are several advantages to modern turbo technology and why many manufacturers now use smaller turbocharged engines across their ranges.
The most obvious advantage of having a turbo engine is the increased power output. Because the engine can take in more air, it can produce more power while often remaining smaller and lighter than a naturally aspirated engine producing similar performance figures.
This means a smaller turbocharged engine can still outperform a larger non-turbo engine, while also helping improve fuel efficiency. Turbocharging has become a popular compromise between performance and economy.
Secondly, turbocharged engines can help reduce emissions. By improving combustion efficiency and making better use of fuel, turbo engines often produce lower CO2 emissions compared to larger naturally aspirated engines with similar performance.
The concept of a turbo engine is to recycle wasted energy from the exhaust gases and convert more of the fuel’s energy into usable power. This can provide improved fuel economy and stronger performance at the same time.
Another advantage is refinement. Because many turbocharged engines are physically smaller, they can sometimes produce less overall engine noise. In addition, the turbocharger itself can help soften exhaust sound by slightly restricting gas flow through the exhaust system.
Driving a turbocharged car can also be a more enjoyable experience overall. The additional torque produced by turbo engines can improve acceleration, responsiveness, and motorway driving performance.
Are there any disadvantages to turbo engines?
While turbo engines offer plenty of benefits, there are some downsides too.
Turbochargers operate under very high temperatures and pressures, meaning regular servicing and maintenance are important. Poor maintenance can lead to expensive repair bills if components fail.
Turbocharged engines can also be more expensive to repair than naturally aspirated engines due to their additional complexity. If a turbocharger fails, replacement costs can quickly add up.
If you already own a turbocharged vehicle and are considering whether it’s worth repairing, you may find our article on whether to repair before selling your vehicle helpful.
You can also explore more maintenance and repair advice in our maintenance guidance hub.
Is a turbocharged car right for you?
Buying a car or upgrading your engine is an important decision and one that should involve careful thought. If you have the budget, a turbocharged engine can offer a smoother, more powerful driving experience while also potentially improving fuel economy.
As with any vehicle purchase, understanding running costs, reliability, and maintenance requirements is key before making your decision.
If you’re thinking about changing your vehicle, you can also read our guide on car depreciation and vehicle value here.
Ready to value your car?
If rising maintenance costs or turbocharger repairs are making you reconsider your current vehicle, Jamjar can help you quickly understand what your car may be worth.
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