well i am looking for people who have used a manual boost control, any brand don't have to name any companies this is a thread to diss on companies im just looking for people who had the same experience.

Problem: well i was trying out some new tunes to run higher octane, so that means i cranks up the boost from 22-24psi to 27psi no knock of course. but when i went back to 91 octane i turn the MBC all the way down so it runs at about 12psi-14psi off waste gate i have a forged WGA then i cranks the boost a tade bit it it goes up to 15psi. here is the problem anything pass that point boost pressure drops to back down to 12psi - 13psi. no matter who much i turn it. the car runs fine and spools great until it cuts off at 12psi - 15psi.

Thought: i think it might be that floating ball in the MBC itself that might have been stuck, so planning to change to a Blitz Electronic one. but i was just wondering if people had the same problem or think it could be something else?

Thanks

 

bump

 

Try taking out the MBC and cleaning the thing out using a paper clip. It gets gunked up after some time.

 

Stock intake?

 

Old thread, sorry