Hey i just installed a turbo kit on my LS with a external wastgate but i need to know how i can limit the boost to 7 psi, because now the spring i have in my waste gate goes to 20 psi, is the a way of limiting the boost with out changing the spring, I need to know because my car is going to be dyno tuned next week. help advise you can give will be a big help.
Thanks

 

Without swapping the spring, there isnt much you can do. ONe of my buddies uses throttle modualtio to control the boost level until he gets his new actuator, but that is a very halfassed and unsafe method,

Check in the FI Classifieds and the sponsors section, there might be a few floating around. If you cant find one in the classifieds, pm a sponsor, they should be more than willing to help