neilandjoanne

I was considering buying a Turbo smart 7/12PSI Actuator. I notice you guys are all talking about porting to a larger diameter. Question 1. Do you have to enlarge the Waste Gate Port/Flapper or can you fit the new Actuator only to make some gains without operating? Question 2. If you do change the actuator to 7 or 12 PSI do you need to have tuned or will it run OK? I currently have a SCT 14 PSI Tune from Intune. Question 3. With a stock Actuator as I have now, how does the 14 PSI come into it? when I read the stock actuators pop off at 5 PSI. Question 4. My 14 PSI tune has made a considerable difference in low down torque off the line, Pardon my ignorance but what is actually 14PSI?

You mention the Waste Gate Actuator as an upgrade. Do you have to Port out and fit the Bigger flap cover, or is there power gains to be had by just replacing the actuator (less intrusive and less expenditure if OK). I have noticed there are a couple of 12PSI versions (Garret, Turbo Smart and some Asian brands)? If a 12 PSI Waste Gate Actuator is fitted, does the Vehicle require a Custom Tune?