R32 Gtr Fuel Pump V Wallbro

[XKLABA]

I have just fitted wallbro into my GTR on advise from a motorsport shop that does tuning aswell as sell parts, now i'm not sure if it was a good idea as i took car for drive after doing change and is no longer blowing black smoke under boost, any thoughts would be appriciated.

Cheers Michael

Edited March 12, 2010 by XKLABA

[NSNPWR]

Um, yeah, put a sniffer in the pipe and check the A/F ratios....preferably on a dyno...

[R31Nismoid]

Walbro in a GTR?

oh dear... thats like putting a ebay turbo onto a GTR, nasty...

Did you even test the fuel pressure to confirm the fuel pump was dead?

If it is NOT blowing fuel under boost - it probably means the pump/motor is leaning out... again, another major issue...

[XKLABA]

Walbro in a GTR?

oh dear... thats like putting a ebay turbo onto a GTR, nasty...

Did you even test the fuel pressure to confirm the fuel pump was dead?

If it is NOT blowing fuel under boost - it probably means the pump/motor is leaning out... again, another major issue...

Are they really that bad, do you have flow rates for gtr fuel pump to compare them and do you have any experience personaly with a walbro pump in a gtr.

Cheers Michael

[XKLABA]

Um, yeah, put a sniffer in the pipe and check the A/F ratios....preferably on a dyno...

Yeah just waiting for sard fpr to get here from japan them on the dyno it goes.

[R31Nismoid]

Are they really that bad, do you have flow rates for gtr fuel pump to compare them and do you have any experience personaly with a walbro pump in a gtr.

Cheers Michael

I've used Walbro pumps before, in a "gtr" makes zero difference, it's just a mechanical part.

From what i've seen, they are poor. Ok for setups 260rwkw or less, othewise forget it.

Get a decent pump, that is well known.

For $220 for a Bosch, i mean - why skimp on a super important part that is very cheap?

And the fact you car is no longer blowing a fuel cloud would suggest it's running very lean = BAD.

[Adriano]

Also the fact that it was blowing smoke on boost would suggest there waas nothing wrong woth the old pump.

[DVS JEZ]

cut your losses, sell the walbro to a mate, get a bosch 044 mounted in the tank and youll be fine, do this before you get a tune, and i wouldnt worry about FPR unless there is something wrong with your current one,

[XKLABA]

cut your losses, sell the walbro to a mate, get a bosch 044 mounted in the tank and youll be fine, do this before you get a tune, and i wouldnt worry about FPR unless there is something wrong with your current one,

The idea behind these were because at 19psi the stock injectors are maxed so for a bit of safety i am going to turn up base fuel pressure a couple of pound, so i don't have to get new injectors for this engine as it is a bandaid engine while i get the next engine ready which is going to run a different style of injector

[XKLABA]

Also the fact that it was blowing smoke on boost would suggest there waas nothing wrong woth the old pump.

the old pump was the original pump that is now 17 years and 180000+km old, i took car for another run and is blowing smoke again

[SiR_RB]

how hard is it to install a bosch 044 in tank fuel pump in an r32 gtr? compares to a walboro ?

[R32 Zilla]

Nothing wrong with walbro pumps. Not sure why someone would state otherwise. I run 2 intank in my car and was advised by a reputable GTR mechanic to do this. These pumps are used in a heap of big hp cars.

Tim.

[R31Nismoid]

the old pump was the original pump that is now 17 years and 180000+km old, i took car for another run and is blowing smoke again

Doesn't matter mate... for the sake of the car, get it on a dyno and see what is going on.

Also check the fuel pump voltage... i assume you wired it correctly and used new wiring?

[daisu]

The idea behind these were because at 19psi the stock injectors are maxed so for a bit of safety i am going to turn up base fuel pressure a couple of pound, so i don't have to get new injectors for this engine as it is a bandaid engine while i get the next engine ready which is going to run a different style of injector

Why would you bother getting a new fuel pump, a FPR and having it tuned when it's just a bandaid engine?

Turn the boost back til you have safe injector duty, keep the standard FPR on, spent the saved money on your new engine?

[James_03]

In-tank 023 FTW.

[Brezza]

why do people bag Walbro pumps?

i put one in my car when i had the injectors upgraded, the GTR was obviously tunned because the injectors were upgraded.

i was advised by my mechanic who is quite reputable here in Adelaide that there really isnt any difference in the pumps, appart from the Bosch one being louder.

[XKLABA]

Why would you bother getting a new fuel pump, a FPR and having it tuned when it's just a bandaid engine?

Turn the boost back til you have safe injector duty, keep the standard FPR on, spent the saved money on your new engine?

I am trying to bet my 11.36 on stock turbos while leaving engine as stock as possible to see what i can get out of it.

[XKLABA]

how hard is it to install a bosch 044 in tank fuel pump in an r32 gtr? compares to a walboro ?

i was told they were similar price and performace but the bosch is very noicey, not good when police pull you over and there is a loud buzzing coming from the back of the car.

[XKLABA]

why do people bag Walbro pumps?

i put one in my car when i had the injectors upgraded, the GTR was obviously tunned because the injectors were upgraded.

i was advised by my mechanic who is quite reputable here in Adelaide that there really isnt any difference in the pumps, appart from the Bosch one being louder.

thank you you made me feel a bit better about putting it in

[XKLABA]

Doesn't matter mate... for the sake of the car, get it on a dyno and see what is going on.

Also check the fuel pump voltage... i assume you wired it correctly and used new wiring?

yes and no i put in a relay with 15gauge wire and fuse but used old wire as trigger, only problem with this set up is the pump runs at 100% all the time, not sure how else to do it.