For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...

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The debate over coil-sprung suspension and tried-and-true leaf springs is fueled by much enthusiast passion. The Jp staff is questioned about it all the time, but despite conflicting opinions, there ...

This file type includes high resolution graphics and schematics. Engineers working on everything from laptops to cosmetic cases to glove boxes commonly use coiled spring-pin hinges because they can ...