I too with a 2530, are seeing about 95% max on the standard injectors. If i go bigger turbo, i will try to up the fuel pressure.
Im with SLY, too much power is good for bragging rights at the pub but useless for real world results. If you have 230rwkw plus, please get some "R" rated tryes otherwise you will be busted by most things off the lights. Last quick rex i ran from the lights i had to jump from the lights as i struggle for traction and short shift. Once under way though, its bye bye. But still it would be nice to have some decent traction.