In most trucks, the final multiplier between road and engine is located in the rear axle, does it multiply fast, or does it multiply slow … Read More

Learn how force transfers to the pavement. Don’t get hung up on horsepower numbers. The last mechanical action that transmits power to your tires is … Read More

You’ve all been there: reading through the spec sheet, and seeing five-hundred horsepower promised in brochures, only to be disappointed by slow takeoff while merging … Read More

“A lot of times when you see a dyno sheet, there’s this really big curve up to a bunch of horsepower and it falls right … Read More

To some people, compression ratio is simply another spec page figure. In reality, it’s at the core of the engine’s breathing system. A proper ratio … Read More

You stare at the digital readout as you click off the pump handle. It’s an arbitrary number; it could be points scored by some team … Read More

You get on the highway, set cruise, and pull out. Everything sounds great as you motor down the road; then you realize engine isn’t humming … Read More

Most of us don’t change tires because we need new rubber. We do it for looks, or because we want narrower sidewalls for better gas … Read More