A lot of you already know, but I have been working on a internal wastegate actuator upgrade with Turbosmart for a bit now. I started with one of their off the shelf units and made changes from there. I tested a few different spring combinations and pre-loads, and landed on a unique combination that works VERY well. Here is an outline of the benefits and dynographs from my personal 2015 Fiesta ST, as well the purchase link.
CLICK HERE FOR MORE INFORMATION, AND TO PURCHASE!
- Consistent, and more predictable boost
- Cures all part throttle boost surging, which is VERY noticeable on Fiesta ST's running higher boost levels
- Prevents boost spike during post-shift recovery, which can cause throttle closures
- Increases high rpm boost levels by 1-3psi
- Flatter torque curve
- 8-10whp
If you have any questions, please post or drop me an email:
info@adamtuned.com