What Is the Difference Between Accords with VTEC vs. ULEV Valve Covers?

Depending on the type of vehicle and your need, Accords with VTEC and ULEV with valve covers can serve purposes of superior quality. Both these engines are environmentally friendly and not ridiculously expensive. So, what is the difference between Accords with VTEC vs. ULEV Valve Covers?

Both ULEV and VTEC have significant differences in air-fuel control, engine performance, and catalytic systems. 

However, these two engines play a significant role in making your Accords perform better and with considerable durability in all cases. Most importantly, these differences make them special and incomparable to each other. 

Read on before purchasing to find out and understand the differences between the engines and why they differ. 

The Significant Differences Between Accords with VTEC and ULEV Valve Covers?

In this section, our automotive experts will let you know all the significant differences between VTEC and ULEV valve covers to help you understand these two better.

Engine Performance 

VTEC is a system developed exclusively for Honda that improves the engine’s performance capability without sacrificing its power. 

By matching the air-fuel intake and exhaust valves to the engine’s speed, VTEC performs without compromising performance. 

Higher performance at higher RPM can be achieved by improving the volumetric efficiency of four-stroke internal combustion energy. 

ULEV is otherwise known as an ultra-low emission vehicle. It emits less than 75g of carbon dioxide for every kilometer distance covered.

Vehicles with ULEV engines emit 50% fewer emissions, making them more suitable. Vehicles with ULEV engines are eligible for a 100% cleaner vehicles discount. 

Catalytic System

In Accords ULEV, only an underfloor catalytic converter is present. This catalytic converter is pretty convenient. 

However, the catalytic converter used in the VTEC has more advanced features. It even has a lift mechanism and changeable valve timing, making it more powerful and convenient for users.

Moreover, this technology has also contributed to reducing the feed gas and has also enhanced and maximized the quick catalytic conversion ratio. But if the catalytic converter is bad, it won’t maintain a good ratio.

Air-Fuel Control

The ULEV engine is specially designed to have a powerful microprocessor PCM with the overall capacity to control and monitor any air-fuel ratio in each of the cylinders.

On the other hand, VTEC has a swirl-combustion process that provides significant air-fuel control. However, the ULEV engine has better and more convenient air-fuel control, which makes the overall engine an ideal choice.

Bottom Line

Knowing what is the difference between Accords with VTEC vs ULEV valve covers will aid you in choosing the right engine for your vehicle.

Moreover, both these engines serve well for different purposes and require to be chosen according to your needs. Therefore, after going through this article, you’ll know all the crucial differences between your ULEV VTEC Honda Accord.