The combustion temperature of diesel fuel is also designed for higher torque. Diesel engines use air compression, as mentioned above, to combust the fuel. With faster compression rates, the fuel combusts faster, allowing fuel injection to build on the level of torque.
Last but not least, diesel engines tend to be designed for turbo charge. Their lean air-to-fuel ratio also helps diesel fuel go longer and add extra torque. Diesel fuel also has more energy per gallon than gasoline, which makes diesel fuel more efficient for combustion and torque. However, torque is responsible for the force of the wheels, which can make a car more reactive and faster.
Many people who prefer speed and responsiveness when accelerating, turning, etc. Which do you prefer? Here are few major reasons for higher torque production in diesel engines:. Header Menu Skip to content. Home Subscribe Contact. Image by Car Throttle on Youtube.
Here are few major reasons for higher torque production in diesel engines: The compression ratio of normal diesel engines is higher than that of its gasoline counterparts. It adds to the development of higher peak pressure inside the combustion chamber and, hence, on the crankshaft. Combustion: A gas engine compresses a fuel-air mixture and then ignites it with a spark.
To many, diesel and gas would appear similar on the surface. A gloss over of specs would make you think that these engines are nearly identical, except for the power figures they produce. What makes a diesel engine able to provide so much more torque than an equivalent gas engine? There are many factors, but five major ones are compression ratio, combustion rate, stroke length, turbos, and energy density.
As I am not close to being an engineer—I'm closer to being the opposite of one—I'm not best qualified to explain what makes these powertrains so much different. Join Now.
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