Fuel Pump Recommendation

[R31Nismoid]

So you cannot backup your claim - that after 15 years they are unreliable and should be replaced.

Honestly, that comes as little surprise.

They are perfectly fine and adequate. Everyone that's had sufficient experience with Nissan RB reg’s knows this.

I ran 370rwkw, 24psi of boost (over 60psi @ the rail), without a drama.

Countless people I know have been doing similar for 4-5 years now with a "15yr old" item that "needs replacement".

All of them at least 20psi of boost, so 60psi @ the reg/rail, all of them.

The factory car would see what, 45psi on a good day. That is another 25 pounds per square inch of additional pressure, without a problem.

Day in, day out, for many years.

There is my evidence, now you show us yours.

There is a lot to be said for OEM design, testing & reliability in both corners.

In some cases (like a Nissan AFM) it is rather poor. However there are flip side cases like a fuel reg that are the exact opposite.

[Parag0n]

Certainly, it's an old item and aftermarket versions are extremely cheap.

I had a fuel regulator fail in 2004, it was on my BNR32. Rare occurrence, most likely.

If you're doing the pump, why not do the regulator, unless you cannot afford it of course.

In my point of view it's a matter of convenience.

Also, please do not skew my words, I never said that replacing the regulator was required.

Edited January 30, 2010 by Parag0n

[Brandon]

But you can change the fpr whenever you like. If its not required, why bother? Its not like changing dumps on a GTR. Which most people wouldnt do unless you're changing turbos, and that makes sense.

[JonnoHR31]

nismoid, i had 2 regs fail in a way that was barely noticeable. normal driving was fine but on boost the pressure wasnt going up enough and it was leaning out to around 15:1 under full load, car still drove fine, just made slightly less power and i only noticed because i had the wideband hooked up at the time. 3rd reg i killed died instantly and would lean to the point of complete misfire at anything more than 0psi. 3 regs died on me in less than 5000kms, gave up on taking chances with 2nd hand stuff and a tomei reg was cheaper than a genuine nissan. at the end of the day most standard regs are fine and will be fine for a long time, but they do occasionally fail, which is when aftermarket regs become handy.

[PM-R33]

Like i said before, if a regulator fails on you, then by all means replace it with an aftermarket one. I would probably do the same thing. There is however no need to swap a perfectly working FPR to a $150-$300 aftermarket adjustable fuel regulator since there is zero benefit and that money could easily be spent on something more worth while.

[JonnoHR31]

my point exactly

[leetom]

what happened to fuel pump recommendations? i've got a bit of an interest in the subject at the moment, seemed to go steadily south.

[R31Nismoid]

That was sorted first 3-4 posts.

Jap pump (nismo, tomei) = more expensive, easier install.

Bosch pump (bosch 044) = cheaper, harder to isnstall.

By no means is a bosch pump "hard" really, as long as you have the ability to follow a simple DIY in the DIY forum, then you can install a bosch.

Can be done in 30mins from start to finish.