Friday, March 29, 2013

Rev Up Your Engines!




What is the difference between a 4 and 6 cylinder engine and what are the benefits of each?

A car has an engine which converts fuel into a forward motion. In a 4-cylinder engine, a car has 4 pistons that rise and fall which, through a series of events, ultimately drives the car forward. A 6-cylinder engine has 6 of these pistons that rise and fall. In the most simple terms, the more pistons a car has, the more powerful the car is. A 6-cylinder engine, which is usually found in larger cars, small SUV’s and small trucks, is, in theory, 50% more powerful than a 4-cylinder engine. And an 8-cylinder engine, which is usually found in standard trucks and SUV’s, is, in theory, 100% more powerful than a 4-cylinder engine (We will come back to the “in theory” part after the explanation of the benefits).

The benefit of a 4-cylinder engine is that it is normally less expensive, lighter and will get better gas mileage. However, if you’re going to be going on long commutes, up a lot of hills, or want a car that has a bit more pick-up when the gas is pressed, you want an engine that is stronger than a 4-cylinder, ie. the 6-cylinder. Going back to the equation of more cylinders = more power, if you’re going to be hauling a lot of heavy things all the time, you’re going to want to buy something with 8-cylinders, like a standard truck or SUV.

Now, to touch on the “in theory” aspect. The reason why a 6-cylinder engine is “in theory” 50% more powerful than a 4-cylinder engine, and an 8-cylinder engine is “in theory” 100% more powerful is because of the advancement of technology. The advancement of technology has lead us to 4-cylinder engines that are far more powerful than they used to be, as well as 8-cylinder engines that are way more gas efficient. An 8-cylinder engine of a 2013 SUV may have better gas mileage than a 4-cylinder engine of the 1980’s, and a 6-cylinder engine of the 1980’s may be less powerful than a 4-cylinder engine of 2013.

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