by David Gentleman » Sun Aug 13, 2006 3:31 pm
I wouldnt, but thats me. If its a 4 bar pump, then it isnt big enough to start with anyway..
The GTA turbo runs 3.2bar with atmospheric pressure to the fuel regulator. When you run a bar of turbo boost pressure, fuel pressure is raised accordingly by the same amount, so on boost, you are running 4.2bar fuel pressure. Hence why the original pump is 5bar..