The information found on a tire sidewall contains important information about the tire size, load capacity, weather ratings, and even government ratings for treadwear, traction and temperature. For illustration purposes, we will look at a 245/45ZR-20 tire (typical size for a Challenger R/T).
Section Width
The 245 indicates that the tire is 245 millimeters across from the widest point of its outer sidewall to the widest point of its inner sidewall when mounted and measured on a specified...
Air conditioning was first offered by Packard, in 1939, in its production cars. These units were manufactured by Bishop and Babcock Co, of Cleveland, OH. Cars ordered with the new "Weather Conditioner" were shipped from Packard's East Grand Boulevard facility to the B&B factory where the conversion was performed. Once complete, the car was shipped to a local dealer where the customer would take delivery. Packard fully warranted and supported this conversion, and marketed it well. However,...
A spark plug is a device for delivering electric current from an ignition system to the cylinders of an engine to ignite a compressed fuel/air mixture. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil, coil pack or magneto. The plug has an electrode than is well insulated from heat and cross...
Pistons are one of the hardest working components of an internal combustion engine, where temperatures inside cylinders can reach over 1,800 degrees F. Early pistons were of cast iron, but there were obvious benefits for engine balancing if a lighter alloy could be used. To produce pistons that could survive engine combustion temperatures, it was necessary to develop new alloys such as Y alloy and hiduminium (high-strength aluminum alloy), specifically for use as pistons. A few early gas...