Internal combustion engines are fairly simply machines. When you break it down, they are nothing more than air pumps. When it comes to making horsepower and torque, the simple fact is the more air you ...

The intake manifold on your Toyota VVTi engine is represented by those plastic tubes that reunite at some point in a large tube right behind the radiator. Their function is to allow filtered air to ...

Sometimes theory is neat, but sometimes it fails to describe what actually takes place. The theory of internal combustion engines falls into this category, especially with respect to the function of ...

Intakes are vital automobile components that work to bring oxygen – a key ingredient in an internal combustion reaction – into the engine’s combustion chamber to modulate how much oxygen mixes with ...

For most gearheads, there's nothing quite thrilling like the roar of a tuned engine and the instant kick of improved acceleration. Of course, buying a muscle car to enjoy lots of raw power and torque ...

Horse Sense:The more we test the GT-40 intake manifold, the more impressed we are. It's well over 15 years old and it's still being compared to the most contemporary hot-rod intakes. Not many cams, ...

It seems everyone has a favorite intake manifold. Some guys scour swap meets, garage sales, and dumpsters looking for long discontinued intakes because they know "they're the best." Others are ...

Whether it's a puddle under your car or a grimy mess inside your engine bay, finding engine oil where it's not supposed to be is never an enjoyable experience. Normally, oil remains contained within ...

If you think about it, there are things about your car that just don’t make sense. You’ve been told that more air is a good thing for power, that a cold air intake, more scoops, more vents, etc, are a ...