So, looking at the stock pistons, the ringlands don’t inspire a ton of confidence, but I’m far from any sort of expert on the subject. I’ll wait on a decision but I’d rather not have to crack open the motor.
Looking into JE 327209, 10.5:1 piston kit, it’s $402. Thinking it may be money well spent, and if going that route might as well up the boost target to at least 14.7 PSI, or 2 BAR absolute. Suddenly 250-300 is a very real prospect.
I’ll wait on those who’ve personal turbo kit experience on an R3 to speak up. The stockers may hold up fine to 11PSI, I suspect they will as long as detonation is avoided.
EDIT: did find this which is an interesting read, it seems stockers are fine for moderate boost under 300hp.