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Mazda , MG
Swap Science: How to Make Transmission Mounts

That custom engine swap is also going to need new gearbox mounts.

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Swap Science: 19 Steps to Build Your Own Engine Mounts From Scratch

We show every step required to build engine mounts from scratch.

How to Remove a Stuck Crank Pulley Bolt Without an Impact

You can remove a stuck crank pulley bolt with a DIY strap wrench–no impact gun or special tools required.

From the GRM Vault: How Lighter Drivetrain Parts Equal More Speed

A crash course in making more power with lighter parts.

From the GRM Vault: The Secrets of Cylinder Head Modifications

Modifying your cylinder head may be vital to obtaining good airflow through the engine.

Subaru
Is Water Injection a Cheap Substitute for Race Gas?

We visited Mach V Motorsports to find out.

Mazda
From the GRM Vault: Heavy Duty

Miata need more power? Take things to 11.

BMW
Veggie Tales

Al Taylor intends to clean up with his soy-fueled racer.

Honda
Breaking In

Before Taking Your New Race Car on Track, You’d Be Wise to Properly Break It In

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