There's a fair bit of science behind how engine turbochargers do what they do (air pressure, compression, fuel burn efficiency, etc.), but basically it will improve an engine's power by around 30 to ...

There are several types of engine compression testers. Be sure to use the correct type for your specific engine, otherwise ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...

Contaminants can tell you if you have any engine coolant leaking into the cylinders, and how well your engine air filter and oil filters are working. Second, you want to check your oil’s health, to ...

Today’s cars and trucks are literally rolling test beds of technology, which has tended to make the days of the so-called shade tree mechanic and eyeball diagnoses of what ails a given model a distant ...