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Fuel Cell Installation / Setup

Started by _Chaotic_ , Dec 16 2007 05:47 PM

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12 replies to this topic

#1 _Chaotic_

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Posted 16 December 2007 - 05:47 PM

Can someone run me through the setup of their fuel cells and possibly pictures.

Just want a basic clarification of the setup. I'm going with the 2 outlets at the bottom of the fuel cell being the fuel out and fuel return lines. Then you have the 2 outlets on top of the fuel cell back left and right. One has sticker labeling roll over vent. Do you run a fuel cell tip over valve off this or a breather? And what gets run off the second fitting?

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#2 _Chaotic_

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Posted 16 December 2007 - 05:59 PM

On second thought i'm guessing the 2 bottom outlets are both fuel out and one the top outlets is the fuel return? Or else you'd create a swirl type effect trying to return fuel at same place as drawing it out of the fuel cell.

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#3 _rorym_

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Posted 16 December 2007 - 06:03 PM

Roll over is you breather vent...Turn it upside down and you will hear the ball bearing roll to the end and cut off. I am running fuel out...roll over / vent..dont have a return...carb..not FI engine. Make sure its got foam in it as well.
R
Posted Image

Edited by rorym, 16 December 2007 - 06:06 PM.

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#4 _why-psi_

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Posted 16 December 2007 - 07:52 PM

2 lower fittings in the sump of the tank are fuel outlets , top left is return line in, top rights the rollover vent which ive used alloy fuel line in a loop then heading down under the back of the car

heres pics of mine
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Edited by why-psi, 16 December 2007 - 07:53 PM.

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#5 _rorym_

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Posted 16 December 2007 - 08:50 PM

I just got a hard on looking at that..! :huh:

R

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#6 _Chaotic_

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Posted 16 December 2007 - 08:58 PM

Cool as easy in my mind as i thought. Just gotta work out what lines i need now and go from there.

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#7 _rorym_

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Posted 18 December 2007 - 07:29 AM

Me too....I am not convinced I need 1/2" lines all the way....stock is 5/16" I think...and that was good enough for L34 and A9X race cars...was thinking of going 3/8- maybe.
R

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#8 _Chaotic_

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Posted 18 December 2007 - 08:28 AM

This cells going in the skyline, testing grounds for my torana setups. Might as well blow up a jap engine then a aussie one if anything goes wrong

I'm thinking i'll just stick with the factory lines as never heard of people having to many problems. The torana however i may run lines of similiar diameter just with new tubing for peice of mind. Seems to be working out all the fittings you need is the real mind boggler...

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#9 Dr Terry

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Posted 18 December 2007 - 08:55 AM

Me too....I am not convinced I need 1/2" lines all the way....stock is 5/16" I think...and that was good enough for L34 and A9X race cars...was thinking of going 3/8- maybe.
R

Hi rorym.

Genuine L34 bodied cars should have a 3/8" steel fuel line running full length of the car. This was one of their unique identifying features.

Dr Terry

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#10 _rorym_

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Posted 18 December 2007 - 09:14 AM

Thanks Terry....pretty much confirms what I was thinking...
R

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#11 _LX406_

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Posted 18 December 2007 - 09:17 AM

Here is the boot of my HG Prem. Sorry for the wiring everywhere, its the only pic I could find.

It is a 50l cell with a BG220HR pump. Gravity fed with -10 BG5000 filter (older style), -8 up to the carby, bypass reg after carb, the -10 return to the top of the tank.

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#12 _rorym_

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Posted 25 December 2007 - 09:26 AM

This might help.
R
http://www.centurype...ce.com/fuel.asp

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#13 _v8slrtorana_

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Posted 25 December 2007 - 07:27 PM

Chaotic, cap ur top left outlet if not running a return regulator. The roll over vent must be vented to outside the cabin if in a street car.

OK it ain't pretty, but its slow work in progress.

The setup consists of :-
50ish liter RCI alloy tank, foam filled with sump.

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8an braided line to the filter, but I'm going to change this, it needs to be 10an as on hard braking you can cavitate the pump. Ive done it trying to beat traffic :gun:

(in my case, im going 2x 8an to a Y piece to the filter)

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BG5000 fuel filter.
BG 220HR pump
They are mounted like this so it ain't in the eye of a thief.

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8an braid to the carby which has a BG bypass pressure reg fitted.

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10an braid return to the tank. Its all about pressure and flow.
8an braid from the roll over vent which loops under the parcel shelf the vents out of the boot cabin. If you don't loop it high, fuel will spill out on hard launch from the vent when you have a full tank.

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Run a return setup where possible. With this setup there is no fluctuations in fuel pressure and the carby has full flow from the pump. Any fuel not required gets "dumped back" by the return reg.

Also consider if that your car is going forward, the fuel pump has to pump against this movement of force, so restricted fuel lines (aka small size) could give you problems.
Make sure the fuel filter you fit can handle the flow of your fuel pump.
Fit a high flow filter before the pump, if you can.
Mount the pump below the tank for gravity feed. Pumps like mine don't suck, they pump.
If you are not using a bypass reg, be sure to do a fuel can test on the reg. We found a holley black is good for a low 11sec pass, but the favourite holley pressure reg would likey give you problems at the 13 sec mark. They simply don't flow the fuel required. Your relying of the fuel in the bowls after this amount of time :furious: