Underhood Automotive
Camshaft Tech With COMP Cams’ Billy Godbold

Camshaft legend Billy Godbold gives an exclusive class in bump sticks.

How To Hone In On Honing

The key to honing is to get the rings to seal against the cylinder wall by making just enough valley depth.

Understanding The EFI Evolution

Much of the acceptance of EFI has been due to aftermarket companies making the systems more user-friendly.

Are Carburetors Still Relevant In Racing?

Carburetors have been forced to evolve to remain relevant in racing.

Tips For Purchasing Diagnostic Tools

Selecting the correct diagnostic tools might be a daunting task. There are a few tips that you can use to make it easier.

Diagnosing Trouble Codes P0706, P0707, P1702, P1921

All too often I have encountered discrepancies in the information I have found while diagnosing a problem.

Engine Build: ProCharged 400 cid LSX Engine

Find out what helps this engine make 1,600 horsepower!

Adding Power With LS Engine Components

The aftermarket is loaded with options for LS engines due to the platform’s popularity.

Engine Build: 450 cid Single Turbo LS Engine

You won’t believe what Toxic’s new 450 cid single-turbo LS engine is capable of.

LS Blocks, Main Caps And Bearings

In this article, we will discuss the basic theory of the LS mains, bearings and relating factors.

Engine Build: J&D Performance Sprint Car Engine

Find out what kind of attention to detail goes into J&D Performance Inc.’s Sprint Car engines.

ADAS: What Are Your Senses Telling You?

As you drive down the road in your vehicle, you’re using all of your senses to react to the environment around you.