when do i need to replace the stock ecu due to excessive boosting?...

 

Laul.

 

The stock ECU fuel cuts approximately 1psi over stock boost.
On Kouki FC's, many owners have reported no overboost fuel-cut condition.
The stock boost sensor only reads up to about 15psi, so assume the ECU has no idea you're going past 15psi, that's a good estimate.


-Ted

 

just do some research b ut i would start adding additional fuel around 9 to 10 psi. at the very least look in to the retek7 v 1.5.

 

There are more factors to consider before worrying about the ECU, like intake temps, how much fuel, wastegate control, boost control and so on.
I would reccomend getting your boost under control before replacing the ECU because there are other systems that affect boost other than the ECU.

 

im aware of whatelse needs to be done. i wanted to know how much the stock ecu could take.. thanks all