Fuel setups

[stylz]

Aight
Well I'm about to do my fuel set up for the car and I'm wondering what set ups every one else is using to stop fuel surging.

Atm I'm tossing up between a few options from getting a jdm tank to doing a full surge set up or even trying to get baffles/foam put inside.

But id like to know what every one else has done with thier cars

[ke70dave]

hey mate

JDM tank is the easiest option, but can be costly, people like to charge around 200-250 for them

there is a stack of info around about surge tanks

this is a good thread

http://www.rollaclub.com/faq/index.php?tit...our_Fuel_System (http://www.rollaclub.com/faq/index.php?title=How_To_Set_Up_Your_Fuel_System)

a surge tank setup is a good "do it once, do it right solution", though expensive to do right the first time, if done right you wont ever have to think about it again.

depends what bargains you can pick up as well for the components.

heres a good thread from this forum about it

http://www.ae86drivingclub.com.au/board/in...64&hl=surge (http://www.ae86drivingclub.com.au/board/index.php?showtopic=33364&hl=surge)

[stylz]

Great links, ta for that.

Decided to surge tank it up.

WTB: surge tank :P
Any one got an under car surge tank to fit under an 86?

[fergo308]

JDM tank isn't much better than the ADM one.
personally,I've built an internal swirl pot,with gated baffles into my tank. also opened up a few corners and such(cut open,squared off with new sheet metal,and re-boxed) for some added capacity. under the car,you'd hardly know it's been touched,and is totally legal.

there's not a huge amount of room under the car for a decent external surge setup,and in-car tanks are illegal.
best location IMHO is next to the filler neck. you'd ideally cut templates to fit the space as much as possible for maximum capacity. anything less than 1.5l may as well not be there.


Justin...

[yoshimitsu9]

<div class='quotetop'>QUOTE (fergo308 @ Jul 24 2008, 05:53 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=566122)</div>
JDM tank isn't much better than the ADM one.
personally,I've built an internal swirl pot,with gated baffles into my tank. also opened up a few corners and such(cut open,squared off with new sheet metal,and re-boxed) for some added capacity. under the car,you'd hardly know it's been touched,and is totally legal.

there's not a huge amount of room under the car for a decent external surge setup,and in-car tanks are illegal.
best location IMHO is next to the filler neck. you'd ideally cut templates to fit the space as much as possible for maximum capacity. anything less than 1.5l may as well not be there.


Justin...[/b]

thinking back to reading one of sam q's posts a while ago, he says theoretically only 600ml is needed for 45 second of cornering

[ke70dave]

<div class='quotetop'>QUOTE (yoshimitsu9 @ Jul 24 2008, 06:05 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=566134)</div>
thinking back to reading one of sam q's posts a while ago, he says theoretically only 600ml is needed for 45 second of cornering[/b]

yep agreed

1.5L is way overkill for a 4age

think about how mcuh fuel that is

worst case scenario you get 15L/100km (when your thrashing)

1.5L = 10km (aprox), half it for safety measure, 5km

no way your gonna need 5km of fuel before the pickup is able to throw more in the tank.

i reckon 600ML is a good size, a nice long thin tank, so it doesn't swish around to much, pluss any smaller and you wont physically be able to attach hoses to it:P

plus...1.5L of fuel is like $2.25 of fuel!!!

the reason a surge tank is there is to stop the small pockets of air from being sucked up by the pump, its not like when you go round a corner all the fuel is swept up the pickup is completely dry for 5secs. the pickup is only out of the fuel for a VERY small mount of time (when the fuel splashes up etc), but its enough to pick up small bubbles of air and cause misfires, engine crapness etc.

[stylz]

yea, i was under the impression that all that you needed was around 1ltr.. if that.
seeing as the surge tank is just to make sure you have a continues flow of fuel to the engine
i don't think its really intended to be a extra fuel reseviour. altho theres nothing wrong with that if you have the space to do so

[dustyae86]

bosch 040, flows 102L/H sooo that is 1.7L a minute, thats how much it's sucking up, not how much your using, so you would have to be going around a corner for a whole minute in an empty sorta spot to have any problems

[Konakid]

Any one had experience with just dropping an efi pump into the stock tank?

Not down with having to run over half a tank of fuel to keep it from surging tho.

Best place to conceal a surge setup is in the spare wheel well with a cover over it.

[fergo308]

that's the easiest place to put a surge tank,but it's not legal. even with a cover on it. might be different in SA,but I don't know anyone who'd approve a fuel system inside the cabin here in Sydney.

a std tank will surge with just under a quarter of a tank left in it.


as for the capacity thing,it really depends on how hard you're pushing,and for how long. if you can get by with a 600ml tank,that's great. I wouldn't use one that small.


Justin...

[steroidchickens]

<div class='quotetop'>QUOTE (Meathead #2 @ Jul 25 2008, 08:59 AM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=566436)</div>
Any one had experience with just dropping an efi pump into the stock tank?

Not down with having to run over half a tank of fuel to keep it from surging tho.

Best place to conceal a surge setup is in the spare wheel well with a cover over it.[/b]

i was running this setup for a while, but into a surgetank.

only problem is when hard cornering the pre pump would run dry, wich did fuck the pump.

i was also looking at making a surge tank inside the spare wheel well, but you cannot make it deep enough to be effective.
i ended up putting one in front of the tank.

easiest and cheapest but still effective is an external lift pump (facit or carter ect) into a surge tank as it does not matter if they run dry.

i have made a custom swirl pot inside my tank. works great.

[yoshimitsu9]

strangely enough i run 2 fuel pumps in line with each other and i never surge at all and have run the tank down to just a couple of litres in it and no problems at all

[stylz]

<div class='quotetop'>QUOTE (steroidchickens @ Jul 25 2008, 07:06 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=566747)</div>
i was running this setup for a while, but into a surgetank.

only problem is when hard cornering the pre pump would run dry, wich did fuck the pump.

i was also looking at making a surge tank inside the spare wheel well, but you cannot make it deep enough to be effective.
i ended up putting one in front of the tank.

easiest and cheapest but still effective is an external lift pump (facit or carter ect) into a surge tank as it does not matter if they run dry.

i have made a custom swirl pot inside my tank. works great.[/b]


awesome, i was thinking about doin the lift pump idea but i was worried that if i ran it dry that it would fail over time
aight so my set up is going to be lift pump to surge tank to high pressure pump

just got to get my fuel set up sorted out then in goes the new engine ^_^, don't want to put her in before i get new fuel pumps + injectors