# How the TWO-STROKE EXPANSION CHAMBER WORKS and Where It Came From (call it Acoustic Supercharging)

An episode of [Cycle World Podcast](https://invisiblenetwork.ai/podcast/1737271114), 20 Nov 2024, 1 h 08 min.

Audio: https://anchor.fm/s/f21971c8/podcast/play/94664636/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2024-10-19%2F390112586-44100-2-12c6b2b769647.mp3

Kevin Cameron starts from the beginning of two-stroke exhaust expansion chamber development in the 1950s to the present. What were its origins and how did it explode power output in these simple, lightweight engines? How did we go from 8-hp single-cylinder commuters to 200-hp 500cc Grand Prix four-cylinders? Kevin knows, and Editor-in-Chief Mark Hoyer rides along with him. Looking to buy? Get prequalified https://octane.co/flex/1?a=171

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