re: #132 Decatur Deb
That’s also when a lot of WWI surplus aero engines got into (wheel-driven) racecars and powerboats. New Liberties were sold for scrap weight.
Some of the race cars between the wars were just nuts. Road&Track had a feature on one of them, the Napier Railton. It used a 12 cylinder ‘Broad Arrow’ aircraft engine with a 24 Liter displacement! The pistons were the size of gallon paint cans!