You are asking for trouble, the BNR's are capable of 18+ psi. You are fine at 10 psi, but you never know when something will go wrong and you boost past 10 psi.
I personally get tired of everyone say " you will be ok... if" Shit happens and the rotary gets a bad name because of it. These motors are extremely sensitive to two things, heat and running lean, other than that they are pretty much bullet proof. You spent the money for the turbos, now spend a bit more for a PFC and upgraded fuel system. If not, give me a call when the motor blows and I will be happy to rebuild it for you
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Take care,
Dan