How much can R33 stock fuel pump push (in kw)

[Starionturbo]

wondering how much the R33 stock fuel pump can push, ive herd guys just upgrading em after 200 rwkw but then guys that are making 250 kw with stock pumps.

whats the story,all my previous cars have had aftermarket fuel pumps.

[paulr33]

180-190rwkw (around 0.85 - 0.90bar) it will max out and lean out. cheap upgrade to gtr pump and direct fit

[Starionturbo]

Well I was making 200 and the car was getting enough fuel. Anyone else got more power with the stocker?

[paulr33]

yeah its not an exact "this is max limit" but its not worth the risk if its going to lean out or risking it given the price to upgrade is cheap too. i also had starting problems with my stock pump but the new one has fixed that

[Packy]

I've got 188kw atw with the standard fuel system.

How much are gtr fuel pumps anyway. How much more flow are they??

[silva33]

i wouldn go for much over 200rwkw, the problem with the stock pumps is that they gradually die.. which leans the car of more and more over time

[Robo's]

I was just making over 200rwkw with the stock turbo. As soon as i upgraded the turbo, i needed a new pump as the pump couldnt cope

[Packy]

Hmmm well i've got a 620hp GT35/40R going on soon, i will have to upgrade the injectors and the fuel pump as well. Seems the more money ya spend on ya car, the more money you have to spend to keep it working right......hehe

[paulr33]

i got my pump for $150 they can be had for around $200-$300 ish

[INASNT]

Hmmm well i've got a 620hp GT35/40R going on soon, i will have to upgrade the injectors and the fuel pump as well. Seems the more money ya spend on ya car, the more money you have to spend to keep it working right......hehe

And if you want use the full power of that turbo you will have to replace alot more things that fuel pump and injectors :uh-huh:

[Al]

With stock pump, injectors and reg you will not make much over 210rwkw, no matter what turbo you use.

[benm]

No point 'upgrading' to a GTR fuel pump which is generally just as old. Might as well spend the same or a little extra and get a brand new bosch.

In my old GTS-t I had a brand new Bosch 040 supplied/fitted for $350 and that was 18mths ago.

[Packy]

INASNT: trust me, i've got a lot of parts just sitting here waiting to go on

Benm: Yeah have been looking at the 040 and the 044. Seeing as the more i take this car past standard the more it might just be a track car. So no real point in doing an in tank pump.

[benm]

I used the 040 as 'intank'.

[Al]

040 are designed to be intank.

I thought the only differance btw 044 and 040 was 044=external and 040=internal.

Just some advise, something learnt by experience. Buy the 040, build a surge tank a little bigger, and mount the 040 inside the surge tank. This will help reduce the noise from the pump (and trust me a 044/040 is bloody noisy), you can then put as much sound damping material, as you prefer, all over the surge tank to reduce the noise even more. Fuel will also act as a coolant for the pump. With a 044 (external) you are unable to dampen the noise as you run a risk of overheating the pump (so i have been told).

I unfortunately just have to live with it, but i honesty am not bothered by the noise, my mates on the other hand can't get over it, and keep biatching.

[benm]

The only time I found my 040 noisier than the std pump is when I turned the ignition on (and its priming). Once the car was on/idling or I was driving I could not tell any difference.

[Al]

What car?

What set-up?

[benm]

Gee ur making me think hard now (new owner has had it for about 3mths).

R33 GTS-t, 198rwkw, 3" full nismo exhaust (pretty quiet compared to most GTS-t's), std turbo, std ecu, fmic, k&n, ex cam gear.

[Starionturbo]

I will get the Fuel pump when I get the PFC tuned.

As far as injectors go, ive spoken to many a performance shop, and said the RB25s injectors seem to be at there max at about 250-260 rwkw.

[Spook's_Skyline]

yer, i was going to ask what do standard injectors max out at?

ive got a powerfc coming and im going to order a 040 fuel pump as well when driftking gets more in

wondering if stock injectors will be ok for stock turbo ?