R33 Gtst Fuel Pump Install

[performance-wise]

Hi guys,

There are some terific guides to installing bosch pumps in this section which are also a great reference if installing any type of fuel pump.

Ive gone for a Tomei direct replacement fuel pump kit for a couple of reasons.

- Its perormance capabilities will suit my power goal

- Value for money

- Runs quietly

- Extremely Easy DIY installation as the unit is a direct replacement for the entire pump assembly

click here for more info on Tomei pumps

Heres what I did :

1 - Access fuel cell.

This is located on the right hand side of the battery.

(I had to remove my amps to get to mine)

It is covered by a plate secured by 4 bolts.

Remove the bolts to reveal the plastic 'lid' of the fuel cell.

This is white with a black threaded plastic ring with ridges on the side of it.

2 - Remove lid.

Unplug the 2 wires on the lid. there is a soft part which you squeeze to remove the plugs.

Remove the three hoses attached to the lid.

Keep a rag handy to absorb any spilt fuel. (Only leeks a little bit.)

Using a block of wood and rubber mallet tap the lid anti clockwise.

(This part is tedious)

When the lid is loosened, lift it up to reveal a black "O" ring and more wires and a hose.

Unplug the wires and hose from underneath the lid.

These dont fall into the tank so you can let them go.

Remove lid and black rubber 'O' ring.

(The Tomei kit comes with a replacement "O" ring)

3 - Remove stock pump assembly

Reach into the tank and gently pull and twist the top of the pump assembly (aka - cradle or bracket).

This comes out easily and in one peice.

4 - Install Tomei pump assembly.

These units come pre assembled with cradle, insulated pump, hose, clamps, wiring and pickup filter.

Look into the fuel tank and find the mounting point where the assembly is mounted.

Lower the assembly into the fuel tank and secure it to the mounting point (can be tricky).

5 - replace lid.

Reconnect the new "o" ring, hose and wiring to the base of the fuel cell lid.

Fit and replace the lid by tapping it clockwise untill secure.

Reconnect the 3 hoses and 2 plugs to the lid and also the plate covering the lid.

6 - Prime pump and fuel line

Disconnect fuse for the fuel pump (this is located in the little black fuse box near the battery)

Turn ignition over a few times to move fuel through the lines.

7 - Fit pressure valve.

The Tomei kit also comes with a relief valve.

I have a NISMO adjustable pressure reg waiting to go on so I didnt install the relief valve.

I was also told that the stock one is ok but I am not 100% sure on that.

Fact is I dont know how to install either the relief valve or pressure reg? And do i require a tune?

If any one knows how please post up the info.

[[[d a n n y]]]

cool genuine nissan hoseclamps

dang...bling YO!!

[justin911]

the sock on a pipe thing is pretty nifty i must say

[Ionos]

Certainly is nice and easy. $400 from Nengun aint too bad either.

Any idea if the included pressure regulator is the same as standard, or will it run a higher pressure?

[lingeringsoul]

AWESOME stuff............one one DIY to add to my collection........THANX :lol:

[performance-wise]

Certainly is nice and easy. $400 from Nengun aint too bad either.

Any idea if the included pressure regulator is the same as standard, or will it run a higher pressure?

<{POST_SNAPBACK}>

I think it runs a higher pressure but not 100% sure? It is different to the stock regulator.

Any one know?

[|PRESA|]

I got myself a Bosch 040 intank pump - anyone know if these are just as easy to install?

I've had a look at it and it doesn't come with any O-ring, hose clamps, mounting bracket or the pick up filter sock looking thing..

[performance-wise]

I got myself a Bosch 040 intank pump - anyone know if these are just as easy to install?

I've had a look at it and it doesn't come with any O-ring, hose clamps, mounting bracket or the pick up filter sock looking thing..

<{POST_SNAPBACK}>

I have never installed an 040 but was going to at one stage.

Did some research and learnt that the 040 wasnt as good a fuel pump as it could be. So I went for the Tomei.

The 040 dont have a pick-up filter which leaves a decent sized gap from the pump to the bottom of the tank, thus causing surging on cornering and when your tank is low.

The 040 can be mounted with hose clamps to your stock cradle.(as low as possible).

Not too hard just a bit of stuffing around.

Have a browse in the DIY section, its been covered quite well a few times already.

[shmiddy]

what hp can these tomei's handle do ya know mate?

[performance-wise]

There is some more info HERE

According to the sight they have an output of 540ps.

Im not 100% sure but I think this converts to around 400kw (I could be wrong).

[chrissso]

Howdy ppls,

I would just like to give thanks as this guide was really handy. I just installed a walbro fuel pump. It took about 1 hr. I wouldn't have done it unless someone had posted this so thanks again.

I bought it off BT-Revolution and it came complete with all the fittings and even a rubber base to fit the cradle that it sits in.

The price was cheap and I chose it as the tuner advised it for pretty good quality and it is easy to fit as it's the same size as the std nissan.

I had a look and it seems to be good, made in USA, and it was a real one. It's funny how alot of people on this forum don't like them. There are a few chinese copies of this pump out there and I think people may have been stung from buying one and found the performance to be no where near what it's supposed to be. Anyway - just a theory.

Anyway - I've attached a picture of the pump installed into the cradle for anyone who want's to have a go at it. All the instructions above are well documented and spot on.

Chriso

[Duncan]

I don't mean to sound negative....but put a fuel pressure gauge on the walbro. I and a couple of others have had dangerously low pressure at high revs from them.....

[chrissso]

I don't mean to sound negative....but put a fuel pressure gauge on the walbro.  I and a couple of others have had dangerously low pressure at high revs from them.....

<{POST_SNAPBACK}>

Hey Man, It's all good - that's what these forums are for.

I had my car tuned today after fitting a walbo, and the graph showed that the afr's went from 12.5 to 11 before tuning. So it's definatly better than my stocko. I'll post the graph when I get home.

I have heard people on the forum getting afr's of 10 after fitting a borsh though.

What pressure reading did you get? I was getting 40psi at 11lbs boost on the stock pump.

[Duncan]

sorry I don't have the exact numbers, but the walbro was flowing the same at 6000rpm as it did at idle. It started flowing fine then dropped off dangerously

[chrissso]

Here's the Dyan Graph

[paulr33]

you may find the walbro's vary differently because they are rated at 15volts. in an r33 at least the wiring only gives 12volts so it never runs at full capacity. you need to run a 15v direct feed to it

[chrissso]

you may find the walbro's vary differently because they are rated at 15volts. in an r33 at least the wiring only gives 12volts so it never runs at full capacity. you need to run a 15v direct feed to it

<{POST_SNAPBACK}>

Yer, I know. I bought a relay and some female spade connectors just incase. Didn't need them though. Enough fuel was being supplied to do the job I'm afer for now. If I go bigger turbo etc, I would relay it to get full use out of the pump. Incidently, the tuner said that he did an R33 with a walbro and got to 345hp before running out of fuel. He also said that some s13's are only getting 10v at the fuel pump, and that can be a problem.

But for now, I'm getting more power, and more importantly, no ping. Pretty happy with that.

[gt-t_r34]

im geting one of these tomei fuel pumps for my 32 so i want have to change all the wiring and make it direct to the battery like some do because they dont have enough power?? hope not becuase that sounds a bit difficult! these tomei pumps seem to be the goods!

[performance-wise]

im geting one of these tomei fuel pumps for my 32 so i want have to change all the wiring and make it direct to the battery like some do because they dont have enough power?? hope not becuase that sounds a bit difficult! these tomei pumps seem to be the goods!

<{POST_SNAPBACK}>

They are definitely the goods! 6 months later and mine is still running perfect

[turbo power]

where do you put the pressure valve in ?? ill need to know this when my pump arrives