View Single Post
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.
* Registered users of the site do not see these ads.
djoye is offline   Reply With Quote