Fuel System

[PSI Parts]

I'm in the midst of designing a fuel set-up for our R33 and I'm keen to get some ideas on what other people have done.

For reference I'm working with

- Surge tank with dash fittings

- Boch 044 Fuel Pump

- Bosch Fuel Filter or Earls Fuel Fitler

And looking to make a boot enclosure to (reduce noise and spill containment) with teflon lines to reduce fumes.

Here are a few pictures I have collected over time from the forums.

For those with hard line setups, what have these costed you?

[felixy69]

here's mine

i think all those set up u got are way too complicated and takes up too much space.

i dont like the hard lines because it's always there...i used soft lines because it's hideable.

set up:

-3 HKS 280L pumps

-2 aeromotive fuel filters

-aeromotive fuel pressure regulator anodized in black

-defi fuel pressure guage incar

-earls fittings anodized in gold / black

-earls special black lines

-Sard twin pump surge tank

here are photos

Edited June 8, 2008 by felixy69

[PSI Parts]

The hard lines do help with fumes, although braided lines would help remove some of the noise from hard lines vibrating too. So I guess it depends on your situation.

I would have thought 3 fuel pumps was complicated compared to a big single

[DCIEVE]

Have recently completed my surge tank setup with teflon braid, 044 and low pressure (pump suction side) filter. No smell, easy to set-up but was very far from economical. Prob over 500 in fittings, plus tank, pump and the filter was 150odd. Im about to re do it with a second 044 now im running out of fuel and will be doing it all with hard lines, not only for cost but imo it looks much neater and I will be taking the opportunity to replace the old fuel lines under the car with new ally hard line also (the line itself is dirt cheap).

[GTR-Ben]

Damn felixy69 thats one amazing looking setup!

[PSI Parts]

This is my fuel setup in the engine bay too, obviously still got a fair bit of work to do.

felixy69 - Nice work on the electrical switch in the rear windscreen too.

DCIEVE - If your changing to hard lines you will be buying all new connectors, wouldn't it be cheaper and yet still effective to just add the other 044 with braided lines, utilising a Y junction?

[DCIEVE]

Not sure what you've done with your fuel setup in that pic though?? Looks like you've gone single feed and twin return.... I'd be splitting the feed to both ends of the rail and returning to the reg in the middle like felixy has shown in his pics.

[MBS206]

Bosch 044 mounted in tank. No surge tank. No smell. No noise. No Surge either.

Looks stock, sounds stock, and has no legality issues.

[PSI Parts]

Not sure what you've done with your fuel setup in that pic though?? Looks like you've gone single feed and twin return.... I'd be splitting the feed to both ends of the rail and returning to the reg in the middle like felixy has shown in his pics.

Single entry in the middle with the ends feeding to the fuel reg, with the bottom of the fuel reg being the return line.

[PSI Parts]

Bosch 044 mounted in tank. No surge tank. No smell. No noise. No Surge either.

Looks stock, sounds stock, and has no legality issues.

Have you done any serious track work with the car? I would think that hard braking and/or cornering might give you pickup problems.

But once again it depends on the intended use of the car. I chose a surge tank because I'm keen to get involved with some time attacks and for the sake of $100 a surge tank is really not that expensive.

[STR8E180]

mines pretty much like felixy69

just with solid lines

pretty crap photo but its the only one i got atm

still not finished but its getting there

Edited June 8, 2008 by STR8E180

[zebra]

This is my fuel setup in the engine bay too, obviously still got a fair bit of work to do.

felixy69 - Nice work on the electrical switch in the rear windscreen too.

DCIEVE - If your changing to hard lines you will be buying all new connectors, wouldn't it be cheaper and yet still effective to just add the other 044 with braided lines, utilising a Y junction?

PSI where did you get that fuel rail?

Im looking at doing a megga fuel system upgrade soon and chasing a top feed rail for when I change them plenum.

Keep the pics coming guys, Its giving me Ideas

[PSI Parts]

Do any of you have a shut-off valve so that you can replace fuel filters without having to drain the system?

[PSI Parts]

PSI where did you get that fuel rail?

It's a standard GReddy item, Part Number #13920606

There are two versions however, one for use with the GReddy Plenum (11mm #13920606) and a generic one for top feed injectors (10.5mm #13920605).

Both come with earls fittings (as do all trust products like catch cans, etc.)

[zebra]

Thanks Mate

[MBS206]

Have you done any serious track work with the car? I would think that hard braking and/or cornering might give you pickup problems.

But once again it depends on the intended use of the car. I chose a surge tank because I'm keen to get involved with some time attacks and for the sake of $100 a surge tank is really not that expensive.

Not tracked it yet with this new setup.

Pushed it hard under brakes/throttle, and through some corners. No surge...

But I'm also not stupid, the tank holds 65 litres, I won't let it drop below having 50litres, at a time to refill. When pushing, don't do it with less then 35 litres in there.

Factory fuel tank is designed with a swirl/surge point in the pickup. Just checkout the design of the factory tank.

[PSI Parts]

The only problem is that with any track work you would want to remove as much weight as possible, i.e. only as much fuel that is necessary to get the job done. Which would quite often require you to go below that 35 litres. At the end of the day it's horses for courses. Everyone has a different set-up as everyone usually has different budgets, goals, hp figures etc.

[MBS206]

The only problem is that with any track work you would want to remove as much weight as possible, i.e. only as much fuel that is necessary to get the job done. Which would quite often require you to go below that 35 litres. At the end of the day it's horses for courses. Everyone has a different set-up as everyone usually has different budgets, goals, hp figures etc.

If I were racing. Weight is an issue, yes.

Doing it my own way for time. I'll leave it how it is.

Even dropping the 20 - 30 litres out of the tank for a "race" I'm only looking to save 10KG really... Think about it, you add a heap more weight back in with extra tanks, pumps, wiring, fuel lines, etc etc...

If I were racing, and going for every hundredth of a second, I'd have a completely stripped out car. On a car like ours, with full interiors, 20 - 30KG is NOTHING. Especially when you have to start dealing with legalities for road use.

[PSI Parts]

If I were racing. Weight is an issue, yes.

Doing it my own way for time. I'll leave it how it is.

Even dropping the 20 - 30 litres out of the tank for a "race" I'm only looking to save 10KG really... Think about it, you add a heap more weight back in with extra tanks, pumps, wiring, fuel lines, etc etc...

If I were racing, and going for every hundredth of a second, I'd have a completely stripped out car. On a car like ours, with full interiors, 20 - 30KG is NOTHING. Especially when you have to start dealing with legalities for road use.

Don't get me wrong, I wasn't having a go at your set-up I was just pointing out that your particular setup is probably not ideal for circuit use, which is what I'll be targeting this setup for

[GeeTR]

here's mine...

Hot diggity, the disco flake looks mint