elijahallen

I have noticed boost is 4psi lower on my Vast stage 3 with MBC. This is the only car I have used a MBC on so I wasn't sure if boost should vary at all no matter what temp is or if I should be looking for the more obvious answere (boost leak). Thanks for input.

Elijah

daves4izzle::ASP 3-

Boost normally rises with ambient temp. to compensate for less dense warmer air.

elijahallen

I knew this was true on a motronic setup but is it the same with a MBC?

pitchS4

either way yours is lower which shouldn't be happening...have you logged?

S4mig@PEB tuning

Boost will change inversely with temperature. Adjust the MBC accordingly to maintain desired boost.