Vehicle speed (mph), engine speed (rpm), tire diameter (inches), trans gear ratio, and rear axle gear ratio are all interrelated. If you know four out of five of these values, you can determine what ...

Building your 4x4 can be one of the most enjoyable and rewarding adventures that you will ever take. While we understand that not everyone is a master fabricator, simply getting to know the basics of ...

After lifting your truck or SUV, you almost always step up to a larger wheel and tire size to complement the new beefy look. When increasing the tire diameter from the factory size, it will have a ...

Even good cars only give the driver two speeds to monitor: engine speed and vehicle speed. And while it’s the engine that ultimately does the work to turn the wheels and move a vehicle, a lot goes on ...

SAE Transactions, Vol. 110, Section 7: JOURNAL OF PASSENGER CARS: ELECTRONIC AND ELECTRICAL SYSTEMS (2001), pp. 675-680 (6 pages) This paper describes a newly developed adaptive cruise control (ACC) ...