Originally Posted by Chance EG
Also true. Honda wasn't the first company to use variable timing/lift in production vehicles (I think Mitsubishi was?), but Honda was definitely the first company to do it well and with a great amount of success.
What you're thinking for Mitsubishi Chanc eEG was the MIVEC
system. That was much later after VTEC was perfected.
Dejoe filed & registered the first patent in the 1920s (for automotive applications) At the U.S. Patent & Trademark Office
In 1958 Porsche was the 1st automotive company to attempt to mass produce a type of VVT system
Fiat was the 1st to successful integrate it on a mass production scale using a hydraulic solenoid like Honda used in 1989-2001 - (US Patent 3,641,988 )
Alfa Romeo was the 1st company to use VVT in a fuel injected system (1980 Alfa Romeo Spider - US Patent 4,231,330 )
Honda in 1989 was the most successful in its use since it was the only company to use a 2-stage cam lobe system -