Learn how to install and wire a digital tachometer. Speedway Motors covers the entire process with our installation of the Acewell 1100 Digital Tachometer.

Tachometer Wiring (Digital)

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

How to Wire a Race Car | DIY Wiring Harness 101

In this Tech Tip, a returning customer asks for advice on wiring harnesses for his ’29 Ford roadster project.

Wiring Harnesses for a 1929 Ford

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.

Universal Wiring Harness Instructions - Installation

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

Speedway Economy 12 Circuit Wiring Harness

Unbox our most popular wiring harness with Tim.

Speedway Tech Talk - Unboxing Wiring Harness Kits

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!

The Best Wiring Solution for Your Hot Rod or Muscle Car Project

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit.  Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Installing a Speedway Motors 22 Circuit Wiring Kit

Speedway Motors just added some exciting new options to our line of racing harnesses.

New Racing Safety Products from Speedway Motors: Harnesses

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!

How to Choose a Racing Harness

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AutoMeter Trailer Wiring Harnesses

AutoMeter Trailer Wiring Harnesses | Speedway Motors

Shop AutoMeter Trailer Wiring Harnesses and get Free Shipping on orders over $199 at Speedway Motors.

AutoMeter Trailer Wiring Harnesses

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AutoMeter AC-70 Adapter, Single/Dual Pole, Tractor & Stinger Cord

AutoMeter AC-68 Adapter, Single Pole, Tractor & Trailer

AutoMeter AC-69 Adapter, Dual Pole, Tractor & Trailer