ok here we go again!!!!!!!!

ok i bought a boost gauge to see what i was boosting,,
it was boosting at 5psi,,
turned up the actuator and still boosting at 5psi!!!
i am not running a amal valve just a closed loop from the actuator to the turbo!!

so i tryed it without no pipes on the actuator to see if it would actually boost above 5psi,, and yeah it did!!

so i thought my actuator was fooked!!! i have recently bought a brand new forge actuator with 9-15psi spring and tryed that and its still the same!!!

its running efi management with beige injectors,,
standard turbo...
NO AIR LEAKS!!!!!!

any1 any ideas??

 

does it hold the few psi of boost it getting? or does it start to jerk like its hitting boost cut?

 

no it holds it, its not jerking about or overboosting..

 

i reckon scrap it m8 sounds a shed to me !

 

shut up u numpty, u have a few sheds at yours..lol

 

Weird...

Maybe there's a mechanical fault of the waste gate flap or a crack in the turbine housing.

Did it really boost properly without the hoses? Or just "better"?

 

yeah it boosted properly.,, but i only took it to 10-12psi as it may have fooked uo the turbo..

 

Well I'm not sure whether it is possible to get decent boost with a closed loop. You would have have to shorten the actuator rod a lot if your running without amal/bleed valve which in the end isn't good for the waste gate flap/housing.

I'd just throw in a bleed valve and try. If it's still not boosting good enough I'd check the turbine housing of the turbocharger for cracks.