Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

Unless you drive a rotary-powered Mazda, the characteristics of your gasoline or diesel engine are largely defined by its bore (the width or diameter of the cylinders) and stroke (the distance the ...

Rising engine efficiency and exhaust limitations demand a deeper knowledge of the combustion process. State-of-the-art investigations use laser optical test equipment that relies on optical accesses ...