Continuing the research. Some videos.
An
NC Miata with a 2.5 swap PLUS a turbo. In this instance they used a Borg Warner EFR6758. The guy in the passenger seat appears to be part of the Fab9 company in the US that I'd seen referenced in some of my travels.
A
Mazda 3 2.3 to 2.5 Swap 'How To' Video
A cool video on
rebuilding a MazdaSpeed (aka MPS) engine.
On a search I found just a few videos on Fiesta ST150 with a 2.5 - but on reading the comments, just about all of them are stroked/bored 2.0 forged engines.
So if I'm honest, I've not yet found anywhere where anyone has swapped a L5-VE into a Mk6/WQ Fiesta ST150/XR4...?
Lukeyson