Originally Posted by Turfboy

As I understand the model, the ultimate goal is to avoid detonation. One method for avoiding detonation is to prevent the leaning out of the fuel mixture while under boost (more air than fuel).

The fuel map on the T4r ECU controls the mixture. Some vendors of superchargers will add a piggy back to the ECU and others modify the ECU itself to account for the additional boost.

Unless you modify the map you probably don't need a bigger pump. Any excess pressure/ fuel is just returned to the tank.

I do believe the T4r's ECU has some ability to modify itself (hence the arguments regarding fuel grade). I am not sure if it will self modify a supercharger upgrade.

Best of Luck!