Jump to content

Changing The Wastegate Actuator


The NUT

Recommended Posts

  • 2 months later...
  • Member
  • Member For: 13y 5m 20d

Interesting reading from all

Recently put my car on the dyne for a tune as it has had all the usual mods fitted, cooler, full exhaust, pump, injectors. The tuners have told me it is over boosting and I need to replace the waste gate as it's spiking to mid twenty's in boost and keeps popping the air intake off the throttle body, I am no expert when it comes to forced induction but any help would be great help.

Cheers

Link to comment
Share on other sites

  • billet turbos and weathered engines dont mix
  • Donating Members
  • Member For: 12y 7m 5d
  • Gender: Male
  • Location: Wollongong

If you have a full exhaust chances are it will overboost as the Watergate now cannot keep up so the excess air goes into your engine... Not good when the same amount of fuel that goes in for 12 goes in for 25. Basically ask for a port job and bigger flapper. Only way to stop it mate.

Link to comment
Share on other sites

  • 1 year later...
  • Member
  • Member For: 12y 9m 8d
  • Gender: Male
  • Location: greta nsw

hi all, just been reading some of these posts and my question is I got 04 ba xr6t running 14psi and car is surging when I put my boot into it, I still have a standard actuator on turbo, would I be losing boost through the actuator and causing it to surge.

Link to comment
Share on other sites

  • Bronze Donating Members
  • Member For: 11y 5m 25d
  • Gender: Male

Actually, if I can hijack for a moment, running a bigger pressure (spring) and you want to drive around like a sane person 99% of the time, how does this effect the overall drivability of the car? And how does it relate to how the boost controller map is set? I assume that the map needs to be changed as to not make the turbo spool like crazy when your not pushing (or become too knife edge between wanting to spool up at inopertune times)

Link to comment
Share on other sites

  • 1 month later...
  • Member
  • Member For: 12y 1m 7d
  • Gender: Male

pulled my turbo off to put new studs/nuts in and im tossing up whether to put on a 12psi actuator or leave the stock one. currently flash tuned at 12psi with the stock actuator so I imagine putting a 12psi actuator in and connecting via boost solenoid could see some major overboosting seeing as ecu still assuming stock actuator spring rate. thinking of bypassing solenoid and letting new actuator be controled directly from vac line from compressor so should open at 12 (or thereabout) just wondering how much boost leak will occur before 12psi and if this can be set by the preload on the arm. appreciate your advice. cheers

Edited by oplock27
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
  • Create New...
'