The research in the automotive sector is in full swing with new tech in development. Be it safety, features on the exterior and interior, or under the hood, everything is getting more advanced. With that, today let’s focus on the heart of a vehicle, the engine. Everyone knows a petrol engine is more powerful than its diesel counterpart. But you may ask, why is diesel more punchy? Well, that is because of a turbocharger.
This turbo is now slowly making its space in the Indian market as the companies are opting turbo petrol engine. But do these more expensive turbo petrol engines make sense? let’s find out.
Before giving a verdict let’s have a look at what exactly is turbocharging. Long story short, a turbo compresses the air at a certain PSI (roughly 6-8psi) more than 1atm and forces it into the engine, this allows a small engine to behave like a big one. On average, about 50% more air is induced in the engine with a turbocharger.
For you to know, 14.7 psi is the aspiration pressure in a conventional (naturally aspirated) engine.
Before any Bharat Stage norms, the diesel engines were naturally aspirated too and surely were very polluting. Adding a turbo drastically increased the power output and decreased emissions. This is why one gets a sudden burst of power when driving a diesel vehicle enthusiastically.
Turbocharging Petrol Engine
The trend in the Indian automotive industry has slightly changed, more so after the new BS6 emission norms. Automotive companies are slapping on a turbo on a small petrol engine and the numbers on a dyno recite the whole story. For instance, a 1.0-litre 3-cylinder T-GDI motor from Hyundai produces a mind-boggling 120ps of max power and 172Nm of peak torque. Whereas a 1.5-litre 4 cylinder naturally aspirated engine from Hyundai generates 115ps of power and 144 Nm of twist. Yes! that is indeed a big difference and this is what downsizing is all about.
Advantages of Turbocharging
- Better power and torque figures
- More efficient than a conventional petrol engine.
- Controlled and reduced emissions
- Better power to weight ratio
Disadvantages of Turbo Charging
- Runs hot
- Needs more Research to integrate it into a production car
- It is costly to manufacture
- Adds more complex moving parts
- Expensive to maintain
Naturally Aspirated engine
- Costs less to maintain and manufacture
- Improved throttle response
- Better low-end punch
- Less efficient
- Higher exhaust emissions
- lower power to weight ratio
Does it make sense to go for turbo-petrol?
Without any doubt, a turbo petrol engine makes more sense over a conventional engine any day. Considering the complete package, getting turbo petrol is not only exciting but also a bit clean for the environment. Hyundai, Nissan, Renault, Tata, Mahindra, Skoda, Volkswagen, and MG all have some cars or the other offering a turbo petrol engine. Oh Boy! those engines are very powerful than their naturally aspirated counterparts. With that, opting one is totally exciting and you’ll love driving it.
Hit us up with any question you have in the comment section down below.