It is not so much the engine handling the added power, or in this case extra boost.
The main thing that I have noticed when tuning these tiny motors is heat. They already run hot. Adding more boost will make them run hotter, and the excess heat will cause massive problems with heat soak and cooling boost on its way up the intake tract.
Note: I have build a 998 turbo Mini. The motor was fine as I was using an intercooled set up and water injection.
The motor still ran at 110 degrees on the Highway cruising in 4th.
The main thing that I have noticed when tuning these tiny motors is heat. They already run hot. Adding more boost will make them run hotter, and the excess heat will cause massive problems with heat soak and cooling boost on its way up the intake tract.
Note: I have build a 998 turbo Mini. The motor was fine as I was using an intercooled set up and water injection.
The motor still ran at 110 degrees on the Highway cruising in 4th.