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Old 11-25-2021, 05:11 AM   #1
Scooby Newbie
Member#: 527645
Join Date: Nov 2021
Default turbosmart wastegate actuator

Hey, I picked up a turbosmart adjustable internal wastegate actuator, if we do another tune can we use the actuator to pull more boost or will there be a possible air/fuel problem - 2010 wrx stock vf52, turbo back, intake.
p.s. i put it on and couldn't get the actuating arm the right length, kept over-boosting
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Old 11-25-2021, 12:22 PM   #2
Scooby Specialist
Member#: 508105
Join Date: Nov 2019
Chapter/Region: NWIC
Location: Greater Seattle Area
2002 WRX - Link ECU
being installed :)


This is a question for your tuner
K3rm1tth3fr0g is offline   Reply With Quote
Old 11-26-2021, 10:57 AM   #3
Scooby Specialist
Member#: 50072
Join Date: Dec 2003
Chapter/Region: South East
Location: TN
2017 STI


- What is spring pressure on the VF52? I found a post that says it's ~8psi, so I'm going to assume .5bar.
- What spring is installed in the Turbosmart actuator? If it's not the 7psi spring, that might be part of your problem.
- Also, did you re-use the stock hoses between the turbo, BCS, and actuator?

If you swapped in the Turbosmart actuator and are using a 7psi spring with stock hoses and it's over boosting, then you probably need a tune to adjust the wastegate duty cycle.

djoye is offline   Reply With Quote

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