Originally Posted by
bertmac
I'm fairly new to the boosted tuning world and I have some questions I hope someone will educate me on,
basic detail stuff
2006 GTO
LS motor
Speed Density Tune
Twin Turbo
So currently the car has 19.5 lb wastegates
Fuel regulator holding 50-65 lbs
here's my question
If I change to 14 lb springs in waste gate, or any other spring pressure, do I have to re-tune?
Or will the ECM realize and keep the fuel/air, timing in a good spot? I realize I will lose power.
Help a old man learn today
Bert