QUOTE(Mags_ @ May 29 2025, 07:33)

Holden and Ford phased out imperial and switched to metric in the early 90's.
Most motors made by Briggs and Stratton are 50% imperial which is very irritating.
A lot of engineering stuff is still imperial too.
Yeah. My car is a bit unusual, its got a lot of imperial bits because a lot of the old TRD guys worked on Holden / Ford super cars / race teams. Even though TRD Australia closed down Toyota sponsored the TRD racing series, now its the GR racing series.
It confuses the shite out of the Toyota dealers how my car has new TRD parts even though TRD Australia closed in 2009.
The original Formula Atlantic 4AGE used a lot of imperial US parts as well... So now I have a Formula Atlantic spec FA20 and the mix of metric and imperial.