They were the original home-built race cars and their garage builders made use of every available automotive and sometimes non-automotive part they could use. Some cars were even powered by outboard boat motors. Modern amateur cars have advanced in terms of technology, but the racing has the same premise: Drive as quickly around a dirt or paved oval race track. They are characterized by their scratch-built single seat chassis , 4 cylinder front-engine, rear-drive layout, and encompassing roll cage. Due to the scratch-built nature of midget cars, you should be knowledgeable in handling, chassis , suspension, powertrain, aerodynamic and safety design. These six major areas of the car design work as an integrated unit and the designer must have an understanding of how changes to one area affect the others. Much of the design work is iterative, meaning re-designing areas based on new changes to another area.
This MG Midget is Powered by a V-4 Honda Motorcycle Engine
Stewart Engines Building Cheap Midget Power | SPEED SPORT
Midget open-wheel racecars and the Stock S Class and Modified A Class inboard hydroplanes have provided thrills and chills for racing fans since the s. And as the speed and performance of these radically-different racing machines has improved, so have the engines that power them. These engines have varied from stock four and six-cylinder automotive-type engines. There have been engines that have been built from scratch to be race engines, then there have been basically stock engines, modified stock engines, and finally, engines that were designed by backyard engine designers. Dozens of engine builders of all types have tried their hands in building race engines within the required displacement.
A hero in Dayton, Ohio, named Chuck Bridgman has conducted a rather interesting engine swap in one of the most charming cars from the era of the British roadster. He found a MG Midget with a broken engine big surprise and swapped out its original 1,cc inline-four shared with the Triumph Spitfire for an unexpected powerplant. Despite being a smaller engine designed for a smaller vehicle with half the wheels, this is actually a significant performance upgrade for the car. By the time the MG Midget hit the late '70s, it was choked to just 50 horsepower and 67 pound-feet of torque because of emissions regulations and by just not having a great engine in the first place. The Magna, however, made hp and 70 pound-feet of torque which are still fairly impressive performance numbers by today's standards for a motorcycle that size, if a bit lacking in torque.
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