I have a hallman mbc and would like to know how to attach the hoses to work with my single turbo. So far i've tried attaching the top of wastgate to the wastegate actuator nipple on the mbc and the ic pipe, after the turbo, to the boost source nipple on the mbc. I left the side of the wastegate open. I can't seem to get any higher than 10 psi which is my spring load on the wg, even if i put the screw all the way in. I also tried reversing the hoses but that didn't work. I know the car can boots 16 psi cause i used to have a profec b and it worked fine. I basically replaced the stepping motor with a mbc. Any suggestions? thanks

joe

 

well i figured it out thanks to help from forum members and dave @ kdr. I just put one hose from ic to mbc and another from mbc to side of wg. Top of wg remained open. I'd like to see how fast this spools compared to a profec b.

 

Check this out.
Look at the Profec B picture and the MBC picture.
There is dyno graph which display spool up time, you might find interesting.
http://www.geocities.com/bridgeporte...st-Controllers