I was thinking the other day while trying to tune the MBC again...If i go a little fatter hose for the MBC hoses will it push more air through possible creating more boost or will it just have more air in the hose and possible lose boost??? Right now i have the silicone size hoses but there just fuel lines that i cute to shortest possible lengths...any thoughts or input on this subject???

 

pressure=force divided by area. more area means less pressure. and it's a linear regression meaning the pressure goes down by the inverse the amount of area increase.

 

What size are you running? Usually if you go bigger, you'll lose boost.

 

The air going through the MBC hoses only actuates the wastegate. you don't need to be moving different volumes of air through it. Changing the size won't help you.