like my Acura has a 16v 4clyinder engine , and i dont know what valves does , the more vavles the faster?
Valves are in the Cylinder Head, They let Air and Fuel into the combustion chamber. 4 vavles let more air and fuel in than 2 vavles, Which makes more power.
the more valves, the more complicated the engine, but yes, more power. a regular 4cyl engine has 8 valves, or 8V. 1 intake valve, 1 exhaust valve. (4x2=8) in a 16v engine, it can be 2 intake valves, 2 exhaust valves 4x(2x2)=16 there are engines with up to 32 valves, those are usually in the 8cyl engines. as a valve opens, it allows air into the combustion chamber, after the burn, the exhaust valve opens to let the burnt fuel out and thru the tailpipe. the faster the air can excape, the faster new air can enter. so more valves, more power. problem is, if they bend or break, very expensive to repair.
Valves are located in the cylinder head. 16V means that you have two intake and two exhaust valves per cylinder...when the intake valves let gas into the cylinder for combustion and the exhaust valves open to release the gases into the exhaust system.
There are 4 cylinders in your car. They each combust air/fuel mixture. How does the air/fuel mixture come in, it comes in by an opening in the cylinder. That is where the valve comes in. It is actuated by a camshaft. Think of it as a ball with a lump on it that is turning. So when the lump comes in contact with the valve it opens it and then springs push it abck in its original position. If you have more valves then that means less air?fuel restriction which means more torque qhich means mre horsepower WHICH MEANS A LITTLE ONLY A LITTLE BIT MORE SPEED.
Your engine is essentially like a vacuum cleaner only it pulls in filtered air that mixes with filtered gasoline. The valves let the fuel/air mix into the cylinder on the piston down stroke or intake stroke. The cylinder actually draws the fuel/air mix in and then compresses it with all valves closed and then it fires driving the piston back down on the power stroke. Coming back up the piston pushes the exhaust gases out through the open exhaust valves. They discovered that there is less resistance with more valves verses trying to make one or two really big valves. In older cars there were only two valves per cylinder. The intake valve was bigger than the exhaust valve but not by much. With four valves per cylinder, the piston uses less energy to draw the fuel/air mix in and push the exhaust gases out. Better effieciency equals more miles per gallon and more horse power when compard to an engine the same size with only two valves per cylinder. Good Luck!
