I like the saab 900 turbo setup using a T25
it comes on song at 1800rpm with 80 per cent
of torque available there and goes all the
way to redline with a big flat torque curve.

I prefer that kind of setup where its on song
early and just creates a big far low and midrange
where 90 per cent of driving is.

Looking at the VF16 atm which makes 95kw atw at 3900rpm
in a 2 L boxer. So maybe a well setup 1.4 will make that
close to that 5500rpm.