Measuring Horsepower

If you plot the horsepower versus the rpm values for the engine, what you end up with is a horsepower curve for the engine. A typical horsepower and torque curve …

Spark Plugs

SPARK PLUG BASICS: The spark plug has two primary functions: To ignite the air/fuel mixture and to remove heat from the combustion chamber. Spark plugs transmit electrical energy that turns …

How to Perform a Leak-Down Test

When your street or race engine starts showing signs of “lack-of-power”, a common and yet simple test that can be performed is a “Leak Down” test. A “Leak Down” test …