Gasser
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Gassers had to have all their basically unaltered fenders, but bumpers could be removed. Gas Coupe/Sedans were classified by weighing the car and dividing the weight by the engine displacement. In the beginning, an "A"-class car was 0-9 pounds per cubic inch; a "B" was 9-11, a "C" was 11, and "D" Gas was 13 and up... The following year, an "E" class was added for cars with over 14.6 pounds per cubic inch. Flathead and inline six-cylinder cars (there were no V-6's back then) were kept separate, so they didn't have to compete directly with the OHV V8's. There was just one "Gas" class for all of them. | Gassers had to have all their basically unaltered fenders, but bumpers could be removed. Gas Coupe/Sedans were classified by weighing the car and dividing the weight by the engine displacement. In the beginning, an "A"-class car was 0-9 pounds per cubic inch; a "B" was 9-11, a "C" was 11, and "D" Gas was 13 and up... The following year, an "E" class was added for cars with over 14.6 pounds per cubic inch. Flathead and inline six-cylinder cars (there were no V-6's back then) were kept separate, so they didn't have to compete directly with the OHV V8's. There was just one "Gas" class for all of them. | ||
− | The next step up was "Altered" or "Roadster" class, (depending on whether the car had a top) which allowed a 25-percent engine setback. "Altereds" and "Roadsters" also could move the body back on the frame, and run without fenders. No interior was required. | + | The next step up was "Altered" or "Roadster" class, (depending on whether the car had a top) which allowed a 25-percent engine setback. "Altereds" and "Roadsters" also could move the body back on the frame, and run without fenders. No interior was required. These were just race-only cars. |
"Street Roadsters" had the same basic rules as Gassers, but the fender rule was more flexible at times. It changed, periodically, but motorcycle fenders were allowed in lieu of stock fenders up front, at some point. It was a "ten-percent engine-setback" rule class, like the Gas Coupe/Sedans. | "Street Roadsters" had the same basic rules as Gassers, but the fender rule was more flexible at times. It changed, periodically, but motorcycle fenders were allowed in lieu of stock fenders up front, at some point. It was a "ten-percent engine-setback" rule class, like the Gas Coupe/Sedans. |