gibbo frst

iTrader: (2)

hi all.. would removing the middle box and just leaving a small back box prevent the car making the boost it should. its a tt t38 it flies up to 25psi then wont budge past it at all.. even if a bleed valve is between the turbo and actuator. it boosts from about 3k and holds 25 to the limiter. with the old t34 on it used to peak at 34psi and drop to 30 and the only thing i have changed is the turbo and chopped the middle box out..? any ideas..
someone did mention that it might need a std exhaust cam instead of the bd10 that it has now. i know it needs to go to a tuner but was hoping to sort something without them telling me to go home and fix bits first...
many thanks..