Should I Replace The Stock Fuel Pump?

[bugger]

Does anyone know whether I should replace the stock fuel pump to a aftermarket one if I'm running 280rwhp?

Is it advisable?

I would like comments.

Cheers.

[bluey33]

If your having fuel problems, yes.

If not wait till it goes.

Get every dollar out of the stock one.

[R33GOD]

im running 280rwhp on the stock pump with an a/f ratio of 12-1. its fine as long as you keep your current power output

[bugger]

Alright. Thanks.

[moonus]

Get every dollar out of the stock one.

its not worth taking the risk cos with this view, it might srsly end up costing you more dollars than you bargained for. If your going to do at some point, why not just do it now, cos at 280 rwhp, you'd be pretty much close to maxing it up. Sometimes you cant even notice have much it is leaning out. i'd say just change it, before you do long term damage

Edited June 26, 2007 by moonus

[bluey33]

Im guessing he had a tune so he would know how much its leaning out

[moonus]

Im guessing he had a tune so he would know how much its leaning out

thats true

[BAMR33]

As rednecks would say 'don'ts fix it till it's brokes'

But seriously should be fine, and you don't want to put fuel pump in unless you really have to... It's a stinky c**t of job.

Buy a fuel pressure gauge only $69 (defi style) from just jap for fuel pump insurance + you can rice your cabin up more.

[abu]

I reckon change it. Its not worth you taking the risk till it dies, it will leave you strandard in the middle of no where.

If you have the cash just buy it, there is no harm in changing it. It may last you another year, or maybe it will last another day. Who's to say when it will go?

At least with a new one, you will know its got a long life a head of it, and its not going to clonk out any time soon.

If your planning on getting more power out of it, why not upgrade it. The stock one didnt cost you anything anyways..

You could pick up a replacement pump, like a BOSCH 040 cheap enough.

Buy a fuel pressure gauge only $69 (defi style)...

But $70 is like half the price of a fuel pump. Later on if he buys another fuel pump, when it does die, it will cost him more in the long run. Might as well spend the cash and upgrade now..

Just my thoughts!..

Thanks,

Abu

Edited June 26, 2007 by abu

[BAMR33]

I reckon change it. Its not worth you taking the risk till it dies, it will leave you strandard in the middle of no where.

If you have the cash just buy it, there is no harm in changing it. It may last you another year, or maybe it will last another day. Who's to say when it will go?

At least with a new one, you will know its got a long life a head of it, and its not going to clonk out any time soon.

If your planning on getting more power out of it, why not upgrade it. The stock one didnt cost you anything anyways..

You could pick up a replacement pump, like a BOSCH 040 cheap enough.

But $70 is like half the price of a fuel pump. Later on if he buys another fuel pump, when it does die, it will cost him more in the long run. Might as well spend the cash and upgrade now..

Just my thoughts!..

Thanks,

Abu

Where are these $140 fuel pumps you speak of... my genuine bosch cost $220 delivered. A fuel pressure gauge is a good idea all the same, as if fuel pressure drops the afr's lean out and cause damage.

Many cheap after market fuel pumps break or seize shortly after installation due to poor installation, factory faults with pumps, and especailly with 040's the bottom filter screen sucks up crap and reduces possible flow which burns out the pump.

[Gazee]

Genuine bosch fuel pumps DIRECT FROM BOSCH are under $150, but yes never heard of a $140 bosch fuel pump, maybe its a fakie like the ones that are apparently going around

[xRHETTx]

I reckon change it. Its not worth you taking the risk till it dies, it will leave you strandard in the middle of no where.

If you have the cash just buy it, there is no harm in changing it. It may last you another year, or maybe it will last another day. Who's to say when it will go?

At least with a new one, you will know its got a long life a head of it, and its not going to clonk out any time soon.

If your planning on getting more power out of it, why not upgrade it. The stock one didnt cost you anything anyways..

You could pick up a replacement pump, like a BOSCH 040 cheap enough.

But $70 is like half the price of a fuel pump. Later on if he buys another fuel pump, when it does die, it will cost him more in the long run. Might as well spend the cash and upgrade now..

Just my thoughts!..

Thanks,

Abu

By your reasoning you should sell your r32 and get a new car because it could die at any time.

keep the stock fuel pump, its still working, no reason to change it and spend money now rather than later.

If it dies in the future, change it then. It'll take you 2 hours max, and usually they slowly die rather than just stopping working all of a sudden, so you should have plenty on notice before it goes.

[mad082]

i say stick with your stock pump untill it starts to die, or you decide to do more upgrading. atleast you know it is working. you may get a new pump and it may be faulty straight out of the box, so you would be driving around thinking everything is fine and then end up causing more damage. if you do get a new pump installed i would put it back on the dyno to see if the mixtures have been affected. ucd15r33 put his car on the dyno 2 days after a new fuel pump and the mixtures went from in the 13's to low 10's, so upgrading his pump was a good thing. but if your pump is good and the new one is dodgy it could go the other way.

[abu]

I didnt say $70 was half the price of a fuel pump, I said its like half he price. Although I have bought a original BOSCH 040 new in the past for $160, which for arguments sake is almost double $70..

You could spend $180 and get a BOSCH 040 brand new, theres one on calaisturbo at the moment. Original BOSCH too, with receipt.

All I was saying was if your after a bit more reliability, and peace of mind you might as well change it. Its a matter of $200 max and about 2 hours work. He obviously has some concerns, hence this thread?

The stock fuel pump would be a least what, 14 years old by now?

Thanks,

Abu

[abu]

By your reasoning you should sell your r32 and get a new car because it could die at any time.

Not even going to justify that with an answer.

But according to your signature you seemed to have recently upgraded to GTR fuel pump from standard?

Any reason for that, since your car is only making 155RWKW, which is plenty for the standard fuel pump to handle..

Just curoius.

Thanks,

Abu

Edited June 27, 2007 by abu

[moonus]

All I was saying was if your after a bit more reliability, and peace of mind you might as well change it. Its a matter of $200 max and about 2 hours work. He obviously has some concerns, hence this thread?

The stock fuel pump would be a least what, 14 years old by now?

Agreed

[Green_s13]

first of all what car is it, i may have missed something, if it is a GTR then it should be fine, however if not i would change it, yes you have had the car tuned and all was good but i can tell you the harder you push the pump the faster they fail and you wont notice it leaning out all that much until it is too late, changing a fuel pump is an easy job especially in a nissan most local mechanic will only charge you around $50-80 or you can do it your self in a half hour. the cost of a new pump is not much and is good insurance

[xRHETTx]

Not even going to justify that with an answer.

But according to your signature you seemed to have recently upgraded to GTR fuel pump from standard?

Any reason for that, since your car is only making 155RWKW, which is plenty for the standard fuel pump to handle..

Just curoius.

Thanks,

Abu

Yeah fair enough, I guess I was just trying to make a point that you can't always go around fixing things just because they might break in the future.

My fuel pump (r32 gtst) lasted 14 years and 175,000kms. I discovered my car was running lean so i replaced it with a GTR pump.

So IMHO if you know your pump is providing enough fuel, its not worth replacing it.

I guess if you want the extra peace of mind, upgrade it. But make sure you get it dynoed after to ensure the new pump is operating as expected.

Cheers,

Rhett

[R33silverS2]

Wouldn't waiting 'till it dies' cause a gradual drop in fuel pressure and start to lean out the motor - detonating the engine?

[Cubes]

When my stock pump started to die it went from nice solid afr's to running dangerously lean within 6months.

If its old, high km's and showing that its a little lazy.. Replace it; not worth the ringlands.

Your tuner will know what you pump is good for and if its lazy or not.