No. On a typical car engine the camshaft turns at 1/2 the speed of the crankshaft.
This is because such engines are "4 stroke". Now it might seem that 4 stroke would mean 1/4 the speed but you have to remember that a "stroke" is just the piston traveling in one direction.
Four strokes: Intake, compression, power, exhaust.
First rev: Intake on the way down, compression on the way up.
Second rev: Power on the way down, exhaust on the way up.
In order to do this the cam(s) have to operate the valves over these 2 revolutions of the crankshaft. So the crank went around 2 times and the cam only once.
This is because such engines are "4 stroke". Now it might seem that 4 stroke would mean 1/4 the speed but you have to remember that a "stroke" is just the piston traveling in one direction.
Four strokes: Intake, compression, power, exhaust.
First rev: Intake on the way down, compression on the way up.
Second rev: Power on the way down, exhaust on the way up.
In order to do this the cam(s) have to operate the valves over these 2 revolutions of the crankshaft. So the crank went around 2 times and the cam only once.
