vf10/Vj11 hybrid problem no boost

[yoyo28gsi]

hi
i just rebuild my engine with new pistons new ring, head gasket and hybrid a vf10 turbo
i use the VJ11 housing and put the VF10 inside.
I have use the VJ14 wastegate with a new hole on the bracket.
I have not done any wastegate ported

i don"t get any boost until 4500 rpm and it's very slow like 2 psi boost
i thinks it's an actuator problem
What is the problem ?
thanks

[FE3-323]

your wastegate actuator is not working properly.
the VJ11 hotside requires some serious tweaking to the actuator rod in order for it to fit properly & hold good tension on the wastegate.

pull the assembly off & you'll find the wastegate flap is not properly seating

[yoyo28gsi]

Hi thanks for answer i was thinking about that, i will put off manifold and turbo tomorrow
the symptom was quietly same than the old one i have when i broken arm of the wastegate on my gsi mk3 turbo

that can be cause missfire at full throttle when the turbo goes to about 2 psi ?
The pressure on gauge is very slow to up to 2 psi so i think it's a serious problem on the actuator
i have fit the VJ14 actuator but i also have the VF10 one and the VJ11 one
which one is the best for this hybrid ?
thanks

[FE3-323]

you'll have to experiment with whatever one will properly hold the flap shut.
thats all i can tell you

[yoyo28gsi]

hi
i have unfit the turbo
the flap wasnt closing the wastegate hole
i have mod all , with a vj14 actuator welded and the VF10 flap welded
now i have only 8 psi it's spool fast but i can't go more than 8 psi ...
what is the problem ?

[yunvmyegt]

isnt that stock wg pressure? use an mbc/ebc...

[yoyo28gsi]

i use a manual boost controller that the problem...

[yoyo28gsi]

on ford laser a guy told me that i can't use the VJ11 housing with the VF10 core ?

[FE3-323]

^ uh yes you can.

[yoyo28gsi]

yep the only thing it's i have a 20R housing i don't know if it's better or worse i thinks it's more laggy than normal maybe but more top end ?
But i don't know why it don't want to go more than 8 psi, i need to precontraint more the actuator ? it's look like about 3 mm already

[FE3-323]

did you water test the actuator power to hold the flap shut??? i bet it might still be leaking

[yoyo28gsi]

i have not do the water test, but i have check with a 0.40mm and it's was good, the water test is to put water on the flap ? there are a big crack on the wastegate hole and on the turbine housing can it be that ?
if i disconnect the hose from the actuator and if i have only 8 psi too that my wastegate is not closing , right ?

[yoyo28gsi]

what is the water test cause it close now when the turbo is unfitted

[yoyo28gsi]

and it's spool very fast

[FE3-323]

is your MBC assembled correctly