Question

Why inlet port is smaller than exhaust port in engine?

Answer 1

Hey there..!

Increase the Size of an Inlet Valve than Exhaust Valve. Because inlet air (or) air-fuel mixture has less pressure as compared to exhaust gas. After the power stroke the exhaust gas in the engine cylinder has more pressure & temperature and gases are ready to leave into the combustion chamber

Thanks.. :)

Answer 2

Because Increase in the size of an inlet valve then exhaust valve because inlet air has less pressure as compared to the exhaust gas after the power syroke exhaust gas in the engine cylinder has more pressure and temperature and the gases are ready leave into the combustion chamber.

Hope this helps ❤️❤️