Std R33 Gts-t Fuel Pump Rwkw Capability

[Roy13]

I am about to reach the magic 200rwkw's and was wondering if anyone out there had 200 or more rwkw's and was using a std fuel pump.

Even better has anyone reach there limit whilst tuning so i have some idea of how much room for error i have left?

[GTS-t VSPEC]

Fuel pumps can go at any stage. without much warning. I'd be suggesting to change your pump now, as you don't want the car to lean out while driving it, as it could lead to major problems.

[Roy13]

The trouble is i am getting the car tuned on tuesday so either it will do and the car gets tuned (then i install one later) or it won't sustain the capacity and i ring up and cancel so i have time to put a 044 in.

[Steve]

What sort of power are you chasing? I had 203rwkw out or mine, so you may be ok, just would be worth upgrading in the future to be on the safe side.

[Roy13]

Just getting a Microtech tuned to 15psi so prbably just 200rwkw's for now, but was worried id get there for the tune cause it is 3 hours away and find the feul pump was going to lean out on me!

[Steve]

If you arent after more than 250rwkw, I would recommend you look at possibly fitting a GTR or Z32 fuel pump instead of the bosch 044 - alot less stuffing around.

Mine made 203 with power fc, fmic, exhaust and .85bar, so you could well be getting over that with 1 bar.

[Mr Rb20]

So what rear wheel figure do you think they can handle ?? 200kw only ??

[Steve]

Probably not alot more. Even with 203rwkw and a tuned ecu, my injectors were over 80% duty cycle, so if you plan on heading much further you need to upgrade the fuel system.

[R31Nismoid]

yeah. 200rwkw... do the pump man.

it's only 200-300 bucks. And it'll always be there if you wanna go further

[Sydneykid]

Hi Roy13 , the standard GTST pump is 135 litres per hour and supports 300 bhp at standard pressure. So 200 rwkw is already over what I would recommend using a standard GTST pump for. Our usual upgrade is a GTR pump which is 190 litres per hour and supports 420 bhp (260 rwkw) at standard pressure.

Next after that for us, is the Bosch 044 pump which is 330 litres per hour and supports 730 bhp (500 rwkw) at 73.5 PSI.

Hope that is some help.

[Mr Rb20]

Thats a big help SydneyKid....Thanks.

A GTR fuel pump will slot straight in with no hassles ??

[benm]

Interesting.... im currently on 203rwkw with the standard fuel pump in my R33 GTS-T and im sure using the stock fuel pump is why im leaning out on 12psi coz i know it can go harder with the standard ecu/turbo.

Whats it cost these days to buy+install a GTR pump ?

I want something that can take around 275rwkw so that I won't need to replace it in 12mths time.

[predator]

Interesting.... im currently on 203rwkw with the standard fuel pump in my R33 GTS-T and im sure using the stock fuel pump is why im leaning out on 12psi coz i know it can go harder with the standard ecu/turbo.

I had the same problem.. few dips and things on the dyno (flatspots I could feel too) and it was doing that at only 12psi, and with my cooler should be good for 14psi easily. So really i have a feeling the stock pump was starting to get a bit old and not providing enough fuel, quite short of 200rwkw. Really though you need to rig in a pressure guage in the fuel line to determine whether your fuel pressure is dropping. Have yet to get it back on the dyno to see whether its made any difference in reality or not.

Otherwise its maybe dirty injectors..

[SHUTO-BOY]

mine died at 245rwhp and 12 psi

its a bad suprise when it happens, so install one that would flow more first

[benm]

www.greenline.jp sell a Nismo Fuel Pump that pumps 175% more than the standard RB25DET fuel pump (246 Litres/hour).

Delivered to Australia they are ~$380. The website has a model of 17042-RRS40, does anyone know if these fit in-tank or....? Also whats it cost these days to have someone install them, would I get away with it all for $500 ?

[walkoau]

does the bosch 044 fuel pump go straight into a r33 GTS-T? with out any mods.

[Steve]

No, do a search cos there is a thread that goes into infinate detail of fitting the pump - a step by step guide. Its not real brain surgery, but its not a 1/2hour swap-out like the GTR pump

[benm]

Dumb question but where is the fuel pump actually located ? Inside the car, underneath, in the boot ??

[AeroGrace]

it can be accessed thru the boot

[Steve]

Other side to the battery, there is a metal plate sort of khaki colour. Underneath is a big plastic screw on lid, has 3 fuel lines (one supply, with yellow band - one return and one for emissions?). If you unscrew it, you will find the fuel pump beneath:)