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Why does a diesel engine produce more torque than a petrol engine?
Wiki User
∙ 15y ago
The cylinder pressures when the fuel fires are higher, up to twice the pressure in a petrol engine, meaning the piston is pushed down with more force and turns the crank with more torque. The piston stroke of a diesel engine is longer, so there is more leverage on the crankshaft, thus it turns the crank with greater torque, but usually at lower RPM'S.
Wiki User
∙ 15y ago
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Why is petrol engine RPM is greater than diesel engine?
for same power diesel engine produces more torque @ less rpm whereas petrol engine produces less torque @more rpm this difference is due to different combustion processes of diesel and petrol
Which is more powerful petrol or diesel engine?
Normally Diesel engines produce more torque than gasoline engines but less horsepower. Gasoline engines rev up quicker and produce higher horsepower at higher rpms. Diesel engines develop their higher torque at lower rpms which allows a diesel to carry a heavier load.
Is diesel or petrol more efficient?
Diesel engines are more efficient. They get better mileage, produce more torque, and last much longer than a gasoline engine. They are also more expensive to build.
Is there more power in petrol engine than diesel engine?
There is more energy in one gallon of diesel than one gallon of gasoline. To elaborate, the word "petrol" is defined in different ways in different places..... but if you have two internal combustion engines of the same displacement the diesel will produce more power than the gasoline engine, especially in 'torque' measurement
Which is rated better diesel or petrol engine?
Each engine is rated better for different things. A petrol engine generally has a higher horsepower than a diesel engine, so acceleration and speed is often better on a petrol engine. Diesel engines tend to rate better with torque, so they are better at pulling heavy loads, which is why diesel engines are used in trucks and locomotives.
What is the difference between petrol and diesel engines?
diesel engines doesn't use spark plug but uses heater plug.petrol engines produces more torque than petrol engines but petrol engines produces more acceleration than diesel engines.petrol engine is faster to be heated than diesel engine.
Why petrol engine is not used for large vehicles?
gasoline/petrol engines are considered to be much less reliable than a diesel engine. large rigs we see on the road today often have over a million miles on them. diesel is efficient and clean, and produces more potential energy. diesel engines also produce much more torque making it easier to tow or move things.
What is the difference in bhp between petrol and diesel engines?
Both our internal combustion engines but the main difference is that a petrol engine uses spark plugs to ignite the fuel but a diesel engine has no spark plugs but instead uses compression to ignite the fuel. A diesel engine is also built much stronger than a gasoline/petrol engine. Diesel engines get better fuel mileage, last longer, and have much more torque or pulling power than a petrol engine. The only disadvantage to a diesel is the fact that it is more costly to build than a gasoline engine.
What is difference between a diesel and petrol engine?
Basically diesel engines are much higher compression giving them more torque also the fuel is ignited by compression not a spark like in a gas engine
Which one having high torque petrol or diesel engines?
Diesel engines have much more torque at low rpm.
What is the adventages and disadvantages of petrol engion?
first of all its engine. ADVANTAGES - petrol is cheaper than diesel so cheaper to run. petrol cars generally cost less than diesel (a few 1000). petrol engines are usually faster than diesel off the line and have a higher top speed than a diesel car with the same sized engine. DISADVANTAGES - petrol is less economical than diesel and also diesel cars are much better for over taking than petrol as it has more torque (pulling power)
Which is best engine a petrol or a diesel?
They each have their pros and cons. The Diesel will last longer, use less fuel, and has more pulling power or torque. The petrol is cheaper to build, fuel cost less, and is cheaper to repair.
