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Hi guys,

In search of a new fuel pump.

Looking at a Bosch 040 fuel pump? Will that be ok?

I hear lots of people going the Bosch 044 fuel pump?

Whats the difference and which one should i go?

I got an Rb20det with minimal mods, think the fuel pump is in it's last legs.

All advice is apprectiated!

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Any of the Bosch in-tank pumps will be fine if you have minimal mods. The 044 is an external mount, so not really the best option. The 040 would be my choice of the Bosch's, or the Walbro 255LPH pump

http://boschfuelpumps.com/

Cheers for the advice.

You confirmed my initial thoughts.

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Personally, I would go the 044 pump over the 040 (and GTR, why put a 2nd hand fuel pump in?).

I'm running an 044 internally and my mate is running an 044 internally (and his car is making 530awhp from one internally mounted 044).

The 040 is more of a direct swap but it has an integral pickup/filter (meaning that it draws from the bottom face of the pump through a screen).

The 044 requires a little modification of the bracket to hold it on and because it has a fitting on the end you can use a stock-like sock-filter setup.

Whichever way you go, you should be rewiring the pump for a constant 12v as opposed to variable voltage.

I cbf putting my fuel pump in (it's like the only thing I paid someone to do to my car other than tuning and alignments), 044 pump cost me $215 new off ebay and I paid Hyperdrive ~$220 to install the 044, they supplied all the fittings & filter and rewired for 12v and a better earth.

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Why put a 2nd hand pump in? .. Because it's more than capable.

There's no need to put a 500hp fuel pump in a car with less than half that... You could spend $200 + on a pump, but a $50 one will be just as good... and it's an easy install.

There's plenty of GTR's out there who have replaced their pumps because they are chasing big power numbers, and if you've got a lightly modded rb20, then the GTR's old pump is a great mod.

But hey, if money isn't an issue for you then go all out.

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It may be more than capable but I wouldn't trust a 2nd hand fuel pump. If that ~20yo pump decides it wants to die at the wrong time, goodbye engine.

For a bit over $200 and some time/patience or another $200 for a pro install, put a decent pump in there.

If you can't afford a $200 fuel pump.. you shouldn't be modifying cars :)

But hey, at the end of the day, it's not my engine.. so go for it ;)

Edited by bubba
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Work out whats cheaper .. new pump or new engine

if you only have minimal mods then you could pick up a 2nd hand GTR pump pretty cheap and it'd be more then enough. Plenty of 32s are using them (check out the rb20 power figure registry in the forced induction section)
my mate is running an 044 internally (and his car is making 530awhp from one internally mounted 044).

We have same set up with 31 making 418rwhp , better fuel system will go in before we hit 500hp

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We have same set up with 31 making 418rwhp , better fuel system will go in before we hit 500hp

Better how? use the intank 044 as a lift pump into a surge tank then twin 044's?

I was a bit sceptical when matey said he was going to run a single intank 044 with his power level but it's coping quite well!

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