R33 Modifying Questions

[cordiapower]

Hey ppl

I put new turbo in my car ITS brand and front mount, and went to test drive the car and car just shudders and goes nowhere as soon as it boosts over 3000 rpm, mind everything is standard apart from catback exhaust and pod filter...guy at workshop that fitted turbo says fuel pump cant cope with the power turbo makes. For reference this turbo made 320hp at wheels on 10psi, 360rwhp at 15 psi and 410hp at 18psi and on my car its set at 13psi and thats set by wastegate...so my question is does this above happen when fuel pump cant cope, and which fuel pump should i get for 350hp at wheels and are warlbro pumps any good...by the way im putting new clutch today (9 button ceramic extreeme brand), getting batmbl split front pipe and cat on monday and getting it tuned next week with wolf 3d plug and play computer so any thoughts are welcome...

regards

Goran

[R31Nismoid]

Problems in order as i read them.

1) Your running a bigger turbo with stock dump,need the bigger one fitted.

2) Your running a stock ECU and 13psi from a bigger turbo? Major problem

3) your running stock injectors, you'll be on the limit of thier usefulness and will need to upgrade IMO

4) You will also need a bigger fuel pump, walbro's are junk

put all your bits on, get a fuel pump then see how its all performing then.

You have too many things that you will address, and need to before a better answer can be given.

[Fastrotor]

Problems in order as i read them.

1) Your running a bigger turbo with stock dump,need the bigger one fitted.

2) Your running a stock ECU and 13psi from a bigger turbo? Major problem

3) your running stock injectors, you'll be on the limit of thier usefulness and will need to upgrade IMO

4) You will also need a bigger fuel pump, walbro's are junk

put all your bits on, get a fuel pump then see how its all performing then.

You have too many things that you will address, and need to before a better answer can be given.

<{POST_SNAPBACK}>

Why are Walbro's junk ? Less than claimed output, or longevity etc ??

Gary

[R31Nismoid]

on my car we were using it and around 250rwkw it the AFR's werent looking so good.

We then decided just to use the walbro as a lift pump and then use a Bosch pump with the surge tank.

At time of installation of the surge the walbro was checked to make sure it hadnt moved in the tank and it was fine.

Had upgraded power etc.

Back onto dyno... surprise surprise. AFR's totally different = rich as. I wasnt impressed thats for sure and im not the only person.

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