What you need to know about electronic fuel injectors.

What you need to know about electronic fuel injectors.

Ray T. Bohacz: EFI was adopted by the auto industry to comply with stricter emissions controls and fuel economy standards, and today many enthusiasts convert older engines to this modern design. Learn more about the fuel injector and how it operates, especially if you...
Supercharger blow-off valve explained.

Supercharger blow-off valve explained.

The key to proper operation of the BOV involves the pressure balance surrounding its piston. By Alfred Bilk On the left side of the picture (above), the piston encounters boost pressure from the charge pipe coming from the supercharger’s compressor. On the right side...