Laying out the relationships between the engine's exhaust and intake and how you can use them to your advantage There are specific functional relationships between an engine's exhaust and intake ...

At one time the most obvious component on many "hopped up" cars and trucks was a hood scoop. The reasons given for using them included the ram air effect, a cooler air source, or they just looked ...

The length of an intake runner has a pretty significant effect on the way an engine delivers power. In simple terms, longer runners help generate better low-end torque, short runners provide high-rpm ...