Hi,

I install an Evo9 Turbo in my Evo8.

I can't boost more than 22psi, I tryed disconnecting the wastegate actuator and it's the same ( I suppose that disconnecting it i would hit 30 psi ) , but there's never going up.

I thought I was leaking in the pressure lines, couples. I look all connections and they look all ok.

Any idea ?

Thank's

 

You have to pressurize the system to find leaks. Search up boost leak test and it will show you the steps to do so. You are using a boost controller right?

 

Yes, I'm using a boost controller.

The car first is boosting 19 psi. Next I start boosting 20.. 21 ...22 , and there's never going up. I disconnect the line of the wastegate actuator to look if charge more boost but it's the same. I can't boost more than 22.
I think there's a leak very important ( losing about 8 psi ).

I check all connections and they look fine. I don't know what's allowing to lose too much boost.

 

Does anyone haved the same problem ?

 

don't tell me your still using ur 8 bov..

 

Boost leak test.