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Question:

car engine question (valves and cylinders)?

so do v-6 engines mean 6 cylinders right?, but what are valves? sometimes they are like double the cylinders (12 valve v6). what do they do, and cars that have like 2.5L does that mean how much fuel is injected and does more mean more power?on a side note, what kind of engine is the evo x? is it 4 cylinder? but has really good technology in it and is that how it has such high bhp?also if anyone knows, i kinda know what torque is but can someone explain in laymen terms? does more=better?

Answer:

Yes v6 means 6 cylinders (pistons). Each pistons need to have gas come in and out and so the valves open and close to do exactly that (breath). There are at least 2 valves per piston - one (set) for exhaust and another for intake. Sometime to make it breath easier, there are 2 valves on each set. The 2.5L mean 2.5 liters (the measurement of the pistons) or basically the engine. The larger the displacement the more powerful (theoretically). Of course the larger the displacement the more fuel need to be injected. The exception is TURBO charged engines which stuff extra air (and extra fuel) so even a small engine take more fuel than equal non-turbo engie. The Evo uses much more than high tech engine to be that good. Besides being powerful, it uses the computer to divide the power to all 4 wheels in such a way to keep the car pulling even in a hard turn. === The TORQUE is the actual measure of engine power. The horse power is a translation of torque into something that people understand (horse - power). Good Luck...
OK well first, cc stands for cubic centimeters, and they measure the displacement within the cylinder of your engine. Basically, the more cc's the bigger the engine. HP is horsepower and generally the more cc's the more horsepower, altho that is not always true, especially if you turbocharge or supercharge and engine. Also, some manufacturers are able to engineer their engines better than others, thus producing more horsepower out of a smaller (less cc) engine. Finally, valves are like little doors in your cylinder. They open and let in the air and fuel, the engine burns the fuel, and then other ones open and let out the exhaust. Some manufacturers put 2 or 3 or 4 of these doors in each cylinder, with the intention of getting the gas in and exhaust out faster, thus producing more horsepower in some applications. A 16 valve engine will generally be a 4 cylinder engine with 4 valves per cylinder, it is a common engine setup. If you still have questions, wikipedia is your friend.

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