now if you build a custom system couldnt you just put in a blow off valve in your system and keep from blowing you stuff apart
BOV don't work on a diesel because they don't have a throttle plate, they instead use wastegates to regulate pressure by venting excess pressure over the designed release of the wastegate.
What he want's to do is make a turbo setup that exceeds generally accepted pressure for an IDI anyway. He could use a wastegate for pressures that certainly would rip a motor apart (like say, 40psi).