ski ya later

with a MBC can you actually limit the boost or just control boost spikes ?

nunya

Both.

leosphere

Sure you can limit it, after install, mines was at 10psi and bump it up.

ski ya later

what N75 valve are you running?

leosphere

stock still

j31izzle

btw, do you have overboost issues at part throttle?

like say you're driving at part throttle, relatively low rpms (between 2k-3k) medium load, do you have boost going to like 10-15-20psi and then fluttering and dropping of boost?

i had that annoying issue when i had the mbc in parallel but now with the boost machine i can adjust this boost onset but i'm still playing with it.

ski ya later

did you run the MBC in parallel with the N75 ?

leosphere

I have the forge MBC from ECS. I ran it parallel with the stock n75 still(meaning one that came with the car, haven't gotten the updated one yet). With this one, you do the opposite, + boost equals more bleed, less boost and the - boost = less bleed and more boost signal to and from the n75/wg. I didn't realize that at first and kept opening it, the max reduction was 10 psi. The spikes are easily controlled this way but I have a feeling that the best MBS to get are the ball/spring kind like in that pic floating around.