Engine Masters

The crew checks out how cylinder heads affect horsepower under boost.

Tests with 87, 91, 110, 116 and E85 check octane's effect on power.

The guys put a blow-through carb up against a throttle-body-style EFI.

The guys test mandrel-bent exhaust against what the local shop bends up.

The crew tests 10 different filters in a hunt for the best units available.

The guys test five carb hats and see how orientation affects performance.

The guys test roots blowers, tunnel ram and intercoolers on a big block.

Does port matching an intake manifold deliver enough bang for the buck?

The headers, intake and more from Freiburger's drag car are on the dyno.

Holley's smaller-bore 4150 takes on their bigger 4500 series Dominator.

The guys study different compression ratios on otherwise identical engines.

It's a battle between the iconic 440 Six Pack and the legendary 426 Hemi.

The guys demonstrate how improved airflow on a small motor equals pure RPM.

The guys put standard, high-volume and high-pressure oil pumps to the test.

The crew tries to find the right balance of decibel levels and performance.

It's a battle of price vs. power for street-centric wedge cylinder heads.

Individual runner systems look cool, but do they actually make more power?

The guys explore the cooling benefits of water-methanol injection.

The guys test air filter size, along with cold air system configuration.

Nitrous oxide provides a cheap, easy and effective way to boost an engine.

We explore the differences between single and split-duration camshafts.

We test out a Mopar V8 with different manifolds, throttle bodies and more.

The guys see how flopping a piston's orientation affects performance.

The guys must decide what intake and headers to run on the Gen. Mayhem 440.

The guys explain what valve float is and how to solve it.