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Fuel Pressur Reg

megzz

By megzz,
in Engines & Forced Induction

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megzz Collaborator

megzz

Posted
Posted

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

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https://www.sau.com.au/forums/topic/380371-fuel-pressur-reg/
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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

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 Grand Master

KiwiRS4T

Posted
Posted

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.

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