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Your surge tank will have an overflow back into the main tank.. if you dont run the return from the rail to the surge tank i doubt it will create any additional pressure in the surge tank.

im running a std r33 gtst pump as a lift to a surge tank then 044 (return from rail into surge tank)

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Your surge tank will have an overflow back into the main tank.. if you dont run the return from the rail to the surge tank i doubt it will create any additional pressure in the surge tank.

im running a std r33 gtst pump as a lift to a surge tank then 044 (return from rail into surge tank)

Hey carved,

this is the surge tank i will be using, i wouldnt mind hooking it up so that it just uses the standard return and maybe modify that away from the standard pickup.

post-17897-1163670385.jpg

btw what fuel cooler are u going to use, im going to hook one up while im stuffing around

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Actually now that i think about it if i hooked it up so that it just used the standard return i would still need to have a return from the surge tank. This will mean a bit of stuffing around with the standard pump bracket and shit that i dont want to get into really.

On second thought i am going to hook it so that it returns to the surge tank, and then the surge tank to the standard return metal pipe on the pump bracket. If the 040 is unsuitable ill just return it and get something smaller, no big deal. Its just that i need to know what a suitable smaller one would be, any ideas??

I just thought with a return on the surge tank it would be enough to not cause any problems, perhaps when u have two pumps pumping into the one surge tank it doesnt like it :D

Im sure there must be 100 people on here running something into a surge into a 044. just need to work out what it is :D

cheers mate

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We're using the stock GTT pump as the lifter; going into a 2L surge and then through a 044 into the rest... works a charm; and hasn't let us down yet. I guess the only thing you should worry about is whether or not the lift pump will be enough to make sure the surge tank stays full, but the stock pumps should be more than enough.

PS: When I was doing mine; the VL Turbo pumps were highly reccomended for a few reasons which evade me now.

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Yeah i was thinking a vl turbo pump might be the go, my stock pump died awhile ago so i dont have it any more. I have an 044 intank atm. Do u know what your stock fuel pump flows? On that page i struggle to find a pump that flows less than the 040 :P

Id say im just going to see how the 040 goes, if i end up having to modify it so i use the standard return as well as a second from the surge tank then so be it.

Anyone know who sells the best fuel coolers?? I guess even a p/s or oil cooler would do the job too :(

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Hey carved,

this is the surge tank i will be using, i wouldnt mind hooking it up so that it just uses the standard return and maybe modify that away from the standard pickup.

post-17897-1163670385.jpg

btw what fuel cooler are u going to use, im going to hook one up while im stuffing around

you can blank one of the top hose feeds off then Y the return into the std return line from the front of the car .

but i didnt do this, i used the return line from the front of the car into the surge then used the std fitting on the main tank to return from the surge tank. mainly to ensure that the surge tank is always full. 040 feeds alot more than the std pumps from memory.

fuel cooler, im thinking of something relatively small like a trans cooler as they simply weave a hard line with fins on it, as opposed to a oil cooler type that feeds a core.

look into getting a check valve for the 044 feed to the rail .. $50 from motorsport connections in seven hills nsw (since i dont know your location)

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basically as your fuel pump set-up is now overkill for most of the time (street driving) a huge amount of fuel is getting pumped up to the rail and then coming back again down the return. since the engine bay and fuel rail are all very, very hot, slowly (or quickly if you are stuck in traffic etc) the fuel in your tank becomes very, very hot. hot fuel is bad. so fuel cooler helps negate this.

260gts, i would run a return from the surge tank to the fuel tank, and from the fuel rail, to the surge tank. best way to go imo. just make sure your fuel returns are big enough.

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works along the same princibles as an intercooler Stan ,the cooler and denser the fuel the more fuel .Have known people the run a coiled hose in a alloy container and fill it with ice at drag meets

Peter

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Thinking of using one of these p/s coolers as a fuel cooler

http://www.pwr.com.au/oil_pwrsteering_external.html

Check valve? :P

i wouldn't use that myself. i would use one like craved suggested. much safer, easier to fit, and pretty much zero pressure and flow restriction.

check valve is needed to ensure that after you turn the car off, the fuel pressure doesn't drain away from the rail.

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Can i ask why you want to run the syrge tank in the first place? Just install the 040 in the tan. You can still use your boot space, its quiter and a lot cheaper. Thats is assuming you arent making elventy billion hp :P

yeah another good point. i will hold off running one as long as I can. I have a fuel pressure guage, and it records so I can watch what is happening with fuel pressure after a few laps. as long as the pressure isn't dropping off due to fuel surge then i wont run one.

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basically as your fuel pump set-up is now overkill for most of the time (street driving) a huge amount of fuel is getting pumped up to the rail and then coming back again down the return. since the engine bay and fuel rail are all very, very hot, slowly (or quickly if you are stuck in traffic etc) the fuel in your tank becomes very, very hot. hot fuel is bad. so fuel cooler helps negate this.

260gts, i would run a return from the surge tank to the fuel tank, and from the fuel rail, to the surge tank. best way to go imo. just make sure your fuel returns are big enough.

BB, i think ill hook it up with one return and see if i have any issues but yeah it has crossed my mind that with two pumps pumping into the surge tank i should have two equal size lines going back into the tank. I guess i will have to modify the stock pump assembly to achieve that.

Roy, i want to run a surge tank so i dont have any issues at the track, especially once the fuel levels get down. And the plan is for a fair bit of hp, SK has recommened i run the 32GTR pump but as im not really interested in a second hand one and a new one is 800 im looking for a lower flowing bosch one than the 040 i currently have but roughly the same price ie 200ish

As far as fuel coolers go i dont think the pwr p/s one would really create pressure or flow restrictions are u 100% BB? Someone link up a place that sells a decent one :P

cheers guys

Edited by 2630GTS
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I like the look of that barrel one you had in ur other thread, i dunno im down for whatever works really.

As far as fuel pumps go, someone is selling a 33 and 34 gtst pumps so ill use one of those as a lift pump as you do. Returning the 040 wont be an issue

Thats Guilt-toy's thread - they will work too but im guessing alot more expensive than a generic trans cooler

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Do you think the p/s cooler looks like it would work better, some how i do.

Im going to order one of these, same as the one in guilt-toy's thread

http://www.vpw.com.au/productgroup.asp?Cat...p;PrdGrpID=2287

the 12 inch one just have to work out what size i need the fittings. Surely i can find a good spot under the car to mount this. Anyone know how legal it is?

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