Pro Modified - Citizendia

Pro Modified, also known as Pro Mod, is a class or division in the sport of drag racing which began in the IHRA sanctioning body. Drag racing is a competition in which objects compete to be the first to cross a set finish mark usually from a dead stop and in a straight line

Overview

This division has specific rules about engines, components, bodies, etc. An engine is a mechanical device that produces some form of output from a given input Pro Modifieds can either be raced on 1/4 mile or 1/8 mile tracks. For the Transformers character see Drag Strip. A dragstrip is a facility for conducting Automobile and Motorcycle acceleration events such Pro Modified has only been around for about 15 years, whereas other classes are much older. Despite this, it has become one of the most popular divisions of the sport. The Pro Modified division was a spin-off of the IHRA's Top Sportsman division but with fewer limitations, allowing for significantly higher performance.

Engines

The rules of engines in Pro Modified are simple and straight forward. The engine can either have up to 527 cubic inches and be supercharged and methanol fueled, or it can have a larger 820 cubic inch engine that utilizes nitrous oxide and gasoline. A supercharger is an air compressor used for Forced induction of an Internal combustion engine. Methanol, also known as methyl alcohol, carbinol, wood alcohol, wood naphtha or wood spirits, is a Chemical compound Nitrous oxide, commonly known as " laughing gas," is a Chemical compound with the Chemical formula N 2 O. Turbocharged engines will be permitted for the 2008 IHRA season. A turbocharger, or turbo, is an air Compressor used for forced-induction of an Internal combustion engine. These engines put out an extremely large amount of horsepower, some at approximately 2500 H. P. The engines propel the cars down the track at speeds of over 200 mph. There are weight limits, according to the type of engine used, 2375 lb. for nitrous powered cars, and 2700 lb. for supercharged (or blown) cars. Most supercharged engines are based on Chrysler's 426 Hemi engine. Chrysler LLC is an American Automobile manufacturer that has been producing Automobiles since 1925 A Hemi engine (from hemisphere) is an Internal-combustion engine in which the Combustion chambers are of hemispherical form

Overview

Engines

See also