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hey, did you get the 2psi supercharger spring or the 3psi turbo spring? Has the bov ever opened prematurely?

hi, I bought a g30-770 and sent it to ocd works for the t51r inlet machining. This will be run with an external wastegate, my tuner is setting it up.

thank you for the detailed reply! I will consider buying a blow off valve with a spring in the range of less than 10inhg. Would I risk the valve opening prematurely if the spring rate is too weak? Or the pressure differential will keep it closed?

Hi all, As we know the valvetronic does not produce negative vacuum pressure in the intake manifold so a typical blow off valve setup *shouldn’t* work. However, I’ve seen two videos of a 330i and a mini cooper both with the B48 platform utilising a blow off valve successfully. I’m in the...