PSI Conversion Racing Wiring Harness and Components

Wiring of your race car or hot rod can be completed at home with these helpful automotive 12 V wiring tips.

Learn about finding the correct beadlock rings, lug-nut taper, wheel spacers, mud covers, and valve stems. This components are critical for safety.

Small block Chevy V8 or the modern LS V8? Which one comes out on top as the best engine to swap into your ride?

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Unbox our most popular wiring harness with Tim.

Having a difficult time deciding which racing harness to use? With many options to consider from size to closure type, this article will walk you through how to go about choosing the perfect one for you and your race car. Safety first!

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

Looking for a performance or custom brake set-up? Whether you're replacing components or building your brakes from scratch, you may wonder what size master cylinder or booster to use. No need to worry, just follow our handy guide.

Electrical wiring is one of those tasks that enthusiasts dread tackling on their own. We're here to tell you that wiring your project vehicle is something you can do with a little help from your friends at Speedway Motors!

Fuel injection is here to stay and we delve into the benefits of such retrofit systems for your classic muscle car or street rod in our EFI retrofit buyer's guide!