TESTCAR

I'm running a stock fuel system.
I got sum mods just basic FMIC,PFC,Boost ctrl,twin-pods, all alloy plumbing.....

I wanna start upgrading and I thought a bigger fuel pump first, I got my hands on a 93supra pump,

would this do? would I need bigger injectors or a rack first?
and af al this is bollocks! then where DO I start?

Mahjik

iTrader: (1)

First thing you need is access to or purchase a wideband O2 and an A/F gauge. Without that, you can't tune anything properly.

Next, the fuel pump isn't going to add more fuel to your A/F ratio. Your A/F ratio is limited by your injectors and FPR.

TESTCAR

right.........
I'm gonna bugger off and learn about O2 stuff

adam c

iTrader: (2)

As long as you don't bugger off, and bollocks it you will be OK

Putting on the bigger fuel pump won't hurt anything. No reason to wait to install it.