v7 standard boost plumbing

[RSTID]

So ive just finished doing the headgaskets on a 2000 bug eye wrx and put everything back the same way that it came off the car, it was boosting to 16psi before I done the headgaskets and now it will only boost to 8psi? any ideas???

[chappell943]

Make sure the restrictor pill is still in the line between the turbo inlet and tee piece.

[94 Leone]

Without the restrictor can it overboost, or just stay below?

[Kiwi_Fozze]

nah, it forces lots of air into the top of the wastegate actuator, pushing it open (effectively running wastegate pressure)

if you put in the restricter, it's basically the same as a closed loop boost controller. lets a little less air through = higher boost.

[RSTID]

dont suppose that u have a restrictor pill for a my00 v7??

[94 Leone]

Sweet, then It doesn't particularly bother me if it's not there though I'm pretty sure the vac line I put in has a restrictor in it. No restrictor = longer life of engine lol

[Kiwi_Fozze]

No restrictor = boring drive with no noticeable longevity difference to standard boost levels... It's all in how its driven... Thrash the pants off it and it WILL die... Let it warm up, change oils right, use the good gas and you'll get many many miles out of it... Hell, mines done over 210k, an i had it running at a nearly 50% increase in boost...

[boon]

What did you do, throw all the lines out?

Chances are you got the little line that goes between the boost nipple on the turbo, the wastegate and the boost control solenoid backwards. If you pinch the little bits of line going to the T-piece you'll feel the restrictor in there.

It should go like this:

Wastegate

|

Solenoid -------Pill----Turbo

And you probably have it like this:

Wastegate

|

Solenoid---Pill---------Turbo

Been there, done that before

[johnny5]

 RSTID said:

dont suppose that u have a restrictor pill for a my00 v7??

Where abouts are ya might have one somewhere will look and get back to you

[RSTID]

Thankx too all, im sorted now i found one ;D