tails83
10th September 2012, 01:03 PM
Hi,
The boost controller (bleed valve) on my GU 2.8 had broken and was totally leaking so the actuator was not seeing any boost at all, I don't know how long it was like this for maybe a week or 2. it never over boosted, just to 12psi on hills(one long steep hill was 14psi so i backed it off a bit). even when it wasn't broken i could never get it to boost over 12psi. with it fully closed it would go to 11psi.
It blows a fair amount of black smoke but is still good on fuel(12.5l/100km). it still drove fine with plenty of power and wasn't cutting out or hesitating.
why is this. could it be the standard exhaust being so restrictive it stops exhaust flow?
thanks
The boost controller (bleed valve) on my GU 2.8 had broken and was totally leaking so the actuator was not seeing any boost at all, I don't know how long it was like this for maybe a week or 2. it never over boosted, just to 12psi on hills(one long steep hill was 14psi so i backed it off a bit). even when it wasn't broken i could never get it to boost over 12psi. with it fully closed it would go to 11psi.
It blows a fair amount of black smoke but is still good on fuel(12.5l/100km). it still drove fine with plenty of power and wasn't cutting out or hesitating.
why is this. could it be the standard exhaust being so restrictive it stops exhaust flow?
thanks