endlesszeal
Senior Member
as im aware, there are two types of boost controllers (excluding the manual boost controller).. solenoids and stepping motors..there are two types of solenoids, single and dual.. solenoids act like a switch in the wastegate.. when the desaired boost as been reached, the excess exhaust energy is dumped out via the atm. or through a cat... the stepping motors are like climate control systems.. it continuously monitor manifold pressure and adjust accordingly to maintain stable and linear boost increases expelling excess exhaust..also, there are two ways boost controllers work.. fuzzy logic and manual.. controllers with fuzzy logic mean it has to learn the charateristics of your turbo.. so you have to find somewhere where u can go wot till about 3 gear or so until it beeps and "learns" your boost charateristics.. so once you get a boost controller, you can turn down the boost via the b.c... but this is what ive been told so if its wrong, be my guess and school me..