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How to correctly use a plasma cutter

Five tips on how to use that plasma cutter–and not make a complete mess of your project.

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Easy ND Mazda MX-5 Performance Tips from Good-Win Racing

What are the three most important modifications to make on an ND MX-5? Good-Win Racing’s Brian Goodwin gave us two separate lists, one for street and autocross, and another for …

Chevrolet
Addressing internet myths about LS swaps

The Internet is full of chatter about transplanting General Motors’s third- and fourth-generation V8s.

10 Must-Have Tools for a Scratch-Built Car

Building a car from scratch? A couple of specialized tools can make all the difference.

How to Choose the Right Tools for Cutting Metal

One way or another, you’re going to have to cut that metal to size. Here are the many different ways to do that—each with their own pluses and minuses.

Low-Buck Tech Tips From the Clever Readers of Grassroots Motorsports

Our readers are an endless source of clever solutions to automotive problems great and small. Their low-buck fixes and fabrications would make MacGyver proud.

Repair that cracked front spoiler in seven easy steps

A bruised chin spoiler can spoil a car’s entire look. Ditch the duct tape and perform a proper repair with just a few hours’ work.

GRM+
18 Dyno Time Tips That Make Each Dollar Count

You can add heaps of trick performance modifications to your car, but without quantitative data there’s no way to know if you’re working toward your goal or simply burning money.

How the Right Fastener Can Prevent Hardware Failure on Track

Learn from our mistakes: Here are a few different types of locking nuts, washers, and threads specially designed to keep hardware tight, and how each type works.

How to Easily and Accurately Drill Holes Using a Divider Tool

A custom bracket with mis-drilled holes is pretty much worthless. Here’s how we used a divider to quickly locate three holes in a custom bracket.

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