2G Single & dual stage MBC not working after rebuild

[Jcoylesr76]

ETA: unless I am mistaken and stock psi on waste gate is 14-15psi?

Greetings,
Having issues with boost control, car was recently fully rebuilt, old MBC was funked up so I picked up a turbo smart dual stage, and no matter what I do it's still hitting 15psi. Info i got was 9-11psi on stock wastegate for this turbo? And help would be appreciated, some info below. Thanks.

EvoIII 16g
255 walbro
550cc injectors
Punishment racing FMIC & piping 2.5"
Injen intake
Black box ECU/Tactrix tune.

Block:
Manley forged crank
Turbo tuff rods
Manley stock size/comp pistons
All new bearings
Balance shaft deleted
Fadenza flywheel
CC stage 4 6 puck clutch and pressure plate
OEM TOB.


Head:
Crower SS valves, strings, retainers, and titanium tops
GSC 268/268 cams
New valves seals, rings, and gaskets, etc
Kingly HLA

 

[steve]

I get that you're hitting 15 psi boost but what's the issue, you want it to go higher or lower?
What are you using to control the boost and how is it attached?

 

[delta448]

I've not encountered an Evo 3 16g with an internal wastegate actuator set for less than 14psi. The stock t25, on the other hand fully extends around 10ish in my experience. An Evo 3 16g is just getting started at 10psi, most wouldn't want an actuator that low opening on a 16g.

 

[roukyweal20]

do you need foils particularly? i’ve been making some swaps to my foiled cube and may be able to help out








Kodi nox