Fuel Pressur Reg

[megzz]

Hi Guys,

I have been told to get myself an FPR. I currently have a 30/25 and im running the stock FPR. Which FPR is more suitable for me?

A Rising Rate or a 1:1 ratio?

Current setup is

RB30/25DET

All Stock internals and CAMs

Power Fc

Walbro Fuel pump

SplitFire coilpacks

Turbo at the moment is a stock RB25 turbo and i will be upgrading to a High flowed Z31 VG30 turbo. Should be running around 250-300kwrw once it is tuned.

Cheers

[R31Nismoid]

You need bigger injectors if you are aiming for above 250rwkw. A bit of a bump in pressure would be fine but you are asking a lot for 300rwkw realistically on a 3ltr. Much past safe.

You don't need to upgrade the reg if you purchase correctly sized injectors too btw, plenty of people running stock regs over 400rwkw.

[KiwiRS4T]

Still using my stock fpr on my RB30/25 running a Gt3540 with 550 injectors. Currently making 225awkw at 9 psi will be turning it up to 18 -21 psi soon and looking for 300kw+

Will only be replacing the fpr if it fails to keep up - ok so far.

[The Mafia]

Short answer - you do not need a FPR.