My daily driven golf with 1.6 gtd engine which I have intercooled and fitted with bigger downpipe works very well but now I'm thinking of giving it some more fuel so I can up the boost for more power... But what is there to be done exactly? Bigger plunger? Camplate? Bigger injectors? I need to know exactly what parts I need for the pump to make it produce the most fuel possible so I can go to the pump guy with the pump and tell him what to do!
All that was done with the pump for more fuel when he rebuilt it for me was installing a thinner washer under the diaphragm.