The Effect of WARTIME FUEL Developments Upon POST-WAR AUTOMOBILES 440143
THE post-war automobile has received generous attention from the feature-story and human-interest writers, but little from the practical engineers who will build these cars.
To bring a more realistic viewpoint into the post-war car picture, Mr. Colwell interviewed 81 of the leading oil and automobile engineers of America. He has formed a weighted average of the combined opinions of all the engineers consulted. Briefly, these conclusions are:
Immediately after the war, 1942 models will be built. No new models will be on the market for at least 18 months.
Although oil companies hope that eventually only two grades of gasoline will satisfy all demands, it appears that immediately after the war, four grades will be marketed: aviation, of 100 and 100-plus octane; premium, of 85-87 octane; regular, of 75-77 octane; and third grade, of 70 octane.
Compression ratio will go up, although ratios above 8:1 are not foreseen for the immediate future.
Although cars will be lighter, the small European-type car is not foreseen. A smaller car with 4-cyl engine, however, is likely to become more popular to meet certain economic conditions.
Future car design will stress economy rather than performance.
Engine size and displacement will not change much with present-weight cars, although engines will be lighter within economical limitations.
Automatic transmission will receive great attention.
Supercharging will be used on heavy-duty vehicles, but not on automobiles in the immediate future, as long as the dominating factor is economy, not power.
Fuel injection will be used on some heavy-duty vehicles, but not on passenger-car engines.
Pressure cooling will be widely used.
Many engine parts, such as bearings, valves, piston rings, fuel systems, and the combustion chamber, will be improved in various ways, because of higher compression.