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Benefits Of Upgraded Fuel Pump

Scratch

By Scratch,
in General Maintenance

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Scratch Collaborator

Scratch

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Posted

Hi everyone,

What benefit is there in upgrading a fuel pump in a r32 GTR to one that supports higher HP? The car has a power FC, stock turbs, stock injectors, stock FPR. I want to upgrade my turbos when they eventually fail, I have a feeling they would be handy then. If they are useless in a stock setup, what do i need to do to get benefits from them before the turbo swap?

Cheers,

Scratch

(I did a search before posting this, couldnt find anything helpful.)

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R33_Rob Proficient

R33_Rob

Posted
Posted

Hi

To my knowledge it doesnt matter if you get a bigger fuel pump. This is because your cars computer is still telling the pump to pump the same amount of fuel in. If your looking at getting more fuel into the engine then you need to have the car retuned for this.

This is what ive been told, though im interested in other peoples opinions.

moonus Experienced

moonus

Posted
Posted

dude, u just how to have a pump that flows fuel to support ur injectors. when ur pump begins to die (im not too sure what hp it is for gtr's but for my gtst it was around the 200rwks) it will start to lean out. with ur mods, id say do ur fuel pump cos it will be close to maxing out. btw ull def need one when u change turbos so id be on the safe side and do it now

Scratch Collaborator

Scratch

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Posted
buddy u should change your stock turbos before letting them "eventually fail". i was thinking liek you and it may cost me a engine.

I hear you man.. right now there is no signs of it wearing out i.e whining or boost fluctuations. I'll definitely change immediately when I can afford it. for now I'm only running 11PSI and not standing on it.

Scratch Collaborator

Scratch

Posted
  • Author
Posted (edited)
dude, u just how to have a pump that flows fuel to support ur injectors. when ur pump begins to die (im not too sure what hp it is for gtr's but for my gtst it was around the 200rwks) it will start to lean out. with ur mods, id say do ur fuel pump cos it will be close to maxing out. btw ull def need one when u change turbos so id be on the safe side and do it now

Yeah i guessed i was already near limit as i'm running stock but tuned up a little. I'm getting only around 285HP at the wheels atm. The new pump is a walbro that support up to 650hp. thinking of getting a adjustable FPR too and then retuning the power FC.

Edited by Scratch

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