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

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)

Read how to wire a lightning sprint engine. This detailed account of how to successfully wire an engine will ensure a smooth installation.

How to Wire a Lightning Sprint Engine

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

New Racing Safety Products from Speedway Motors: Harnesses

Are you a collector of automotive signs? This is a DIY project where you will learn how to convert a hardwired sign to a plug in. Jess M. explains each step to get the job done!

Converting a Hardwired Sinclair Sign to Plug-In

Watch our Steering Column Wiring Guide video for useful tips on wiring your new steering column for your vehicle. Ididit takes you through the wiring process.

Steering Column Wiring Guide

This video is a step-by-step guide on how to properly install a wrap-around 5 point harness seat belt. Joe and Kyle also talk about the benefits of the Speedway Motors 5 point harness seat belt combo.

How to Install a Wrap-Around 5 Point Harness Tech Talk

Learn about the wiring of GM HEI Ignition Distributors with our diagrams and guide.  Ensure you are getting the best performance out of your ignition system.

GM HEI Ignition Distributor Wiring Diagrams and Guide

Learn how to install spark plug wire terminal ends. Our step by step guide takes you through terminal end and boot installation with the use of a wire crimping tool.

How To Crimp Spark Plug Wires and Install Boots

Engine Family Facets

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GMC Jimmy Data Logger Wiring Harnesses

GMC Jimmy Data Logger Wiring Harnesses | Speedway Motors

Shop GMC Jimmy Data Logger Wiring Harnesses and get Free Shipping on orders over $175 at Speedway Motors.

GMC Jimmy Data Logger Wiring Harnesses

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