Help! Fuel Pump Issues For Rb26

[Shaun]

Im in the process of building an RB26 with forged pistons and all the other (expensive) stuff, and im trying to sort out fuelling issues. Im aiming for between 330 and 350rwkw with a single high mount turbo. Ill be using Sard 700cc injectors, which by my calculations should be adequate. Ive also figured out that if these injectors are at 100%, theyll be flowing 252L/Hr. I, therefore, need a pump that has the ability to flow 252L of fuel per hour.

So if i want to run 25psi maximum boost, does that mean that i have to find a pump that will flow 252L/Hr at 65psi (40psi fuel press. + 25psi boost)?

If this is correct, which fuel pump will do this if i want to retain an in tank set up?

If i am not mistaken, the Bosch 040 will only flow 235L/Hr @ 73.5psi, and one of the Walbros will flow 255L/Hr but only at 50psi.

Any help (Sydney Kid) or feedback about the above info and calculations would be appreciated.

Shaun.