This Swedish Inventor OUTSMARTED Detroit With a Weird Free Piston Engine in 1928

Backshift Garage November 23, 2025
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Backshift Garage is where vintage cars come to be glorified, mocked, or both — we honestly don’t care which. From muscle cars that roared like gods to quirky tin cans that barely made it out of the factory, we cover the good, the bad, and the “what the hell were they thinking.” We don’t worship chrome, we roast it. We’ll tell you when a classic is a masterpiece… and when it’s just a glorified lawn ornament with wheels. If you’re here for sugar-coated nostalgia, wrong garage. If you’re here for raw, sarcastic takes on the weirdest corners of automotive history, throw it in reverse and backshift in.

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What if the most efficient engine ever built was deliberately buried by Detroit because it threatened their entire industry? In this video, we explore the incredible story of Birger Ljungström's revolutionary free-piston engine from 1928 - a Swedish invention that achieved double the efficiency of conventional engines while using 80% fewer parts. Discover how this radical design with no crankshaft or connecting rods terrified American automakers, why Detroit's engineering establishment dismissed it as "Swedish nonsense," and how modern companies like Toyota and Tesla engineers are now revisiting this century-old technology that was simply too far ahead of its time. #engineering #automotive #history #innovation #technology

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