KAD Turbo boost pressure?

[Volvo KAD 32 tfft]

Hi all, can anyone say what sort of pressure PSI I should be seeing at 3000rpm? thanks

 

[Peanuts]

Hi
This is not a straight forward answer as the pressure is also dependent on the temperature, however just as a rough guide at 20 deg c on a KAD32 at

2500rpm min 21.7psi
3800rpm min23.9psi

Does this help?

 

[Volvo KAD 32 tfft]

Hi
This is not a straight forward answer as the pressure is also dependent on the temperature, however just as a rough guide at 20 deg c on a KAD32 at

2500rpm min 21.7psi
3800rpm min23.9psi

Does this help?

yep, many thanks, confirmed that 14 is not enough,

 

[Momac]

Out if interest - I assume this has to be measured with the engine under load ? And how do you go about measuring it?

And just a thought - could low pressure be caused by an air leak between the supercharger and the turbo or a supercharger issue rather than a fault with the tubocharger ?

.

.

 

[spannerman]

There is a plug on the top of the inlet manifold near the fuel filter housing to connect a pressure gauge. Its not unknown for them to leak from the O rings on the pipe from the turbo to the intercooler.