Fuel Setup

[smok74]

Hi guys,

I've installed a set of brand new 660cc side-feed injectors on my RB25DET (series 2 1997 R33) using a POWER FC with a Bosch 044 external setup. Now, I am wondering what the ideal base fuel pressure to have the adjustable fuel pressure regulator set at ? I will be running at a max boost level of about 18 - 20 psi.

Also, Im using the factory intank pump to feed the 2 litre surge tank, then the single Bosch 044 as the main pump to the fuel rail. Now, what would be the ideal sized fuel line from the 044 to the rail ? AN -6 or AN -8 ?

Any help is appreciated.

[STATUS]

40-45psi as a base- stock lines are usually fine what size turbo?

Edited December 3, 2008 by URAS

[R31Nismoid]

Factory line, factory fuel rail, factory reg... all the way home.

They are all more than adequate for what you need, i'd just go with the factory items, they are free afterall.

You dont need larger lines or anything.

Isnt the stock fuel pressure 38psi?, if it is set it to that and thats all you need. (i honestly cant remember the exact base rail pressure)

[2rismo]

Most tuners I've seen will set the base pressure to 45psi (no vacuum) but let them do this on the dyno when you tune it.