My fourth year of NB Miata ownership
I’ve now owned my NB Miata for four years. I have been writing post where I cover each year of ownership. This year I continue that format where I cover the year with a single photo and short description for each month of ownership. This particular post goes from March 2024 (where I left of last year’s post) through February 2025.
March 2024: Swapping in a rebuilt VVT motor with a 6 speed
Over the winter I prepped a BP6D VVT motor and got around to installing it into my car to replace the original BP4W in March.
I fell down the slippery slope of an engine swap. I was just going to drop in the motor as-is, but found the valves weren’t sealing very great. So I rebuilt the head. While the head was off I ended up doing a DIY hone with new OEM rings and Chinese pistons, along with a long list of goodies: