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I put Koenigsegg’s freevalve tech on a Miata... It runs and drives!

Wesley Kagan · demo · Watch on YouTube

Cars, EVs & motorcyclesMechanical & precision engineering3D printing, CNC & maker projects

What it is

Hobbyist Wesley Kagan shows his Miata running and driving with a homemade version of Koenigsegg's freevalve camless valve technology. The build uses open CAD files and code and he describes it as an ongoing work in progress.

Why Hacker News recommends it

HN commenters cite it as an impressive hobbyist project and as an example of open-source engine control enabling freevalve retrofits.

  • 1 people recommended it
  • 1 different months
  • 1 strong recommendations
  • first 2021, last 2026

What HN commenters said

  1. “Probably the coolest hobby automotive project in years: freevalve on a Miata.”

    bmelton, 2023-04 · Strong recommendation · in ““Inside-out Wankel” rotary engine delivers 5X the power of a diesel”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: freevalve, miata, koenigsegg, internal combustion engine, diy engineering

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