Surge Tanks??

[25GTT]

Heya Guys,

Just speaking to my friend Briefly about Surge tanks... can someone please explain them to me?

What EXACTLY they do?

How do they benefit?

Price?

Horsepower increase?

Pics??

Thanks guys...any info is aprreciated

[blind_elk]

What in?

I've heard them described as a 'de-aeration device'.

Basically, they provide a constant head of fuel to the EFI pump, so that, even on a near empty tank during hard cornering, you will always have fuel available for the EFI pump.

In-tank pumps have a sort of box surrounding the pump pick point.

In an external setup, you have a low-pressure pump which keeps the tank supplied with fuel from the fuel tank, and also excess fuel from the rail returns to the surge tank. Any 'overflow' returns to the fuel tank.

Most factory EFI cars already have them installed somewhere.

[25GTT]

Thanks for that:uh-huh:

Any idea on how much they cost and any performance HP gain?

Basically kinda gut stuffed around and am getting one VERY cheap so thought i would do some research as to what it is before i get it :-)

[Fitzpatrick Speed Works]

Just a side note: THe Japs also call the intake plenum a surge tank!!!! Hopefully this will clear up some confusion next time your on the Jun or Top Secret web site, i know i was confused for a while

[blind_elk]

There's nothing to be gained performance-wise, other than you won't run out of fuel on a hard corner with a low fuel load.

Checkout www.efihardware.com

If you're already running a (factory) EFI car, then you shouldn't need one (I'm guessing your nic says you have a R34 GTt)

[adam 32]

as has been said surge tanks are used to provide constant supply of fuel to a large fuel pump. there are no horsepower gains but many people recommend them when installing a bigger fuel pump, especially if that fuel pump is too big for the std tank.

it would only be neccessary if a)doing trackwork and needing constant supply of fuel given corenering etc

b)have big fuel system and pump which is external and requires a surge tank

[Pva_Glue]

I dotn know what it is but I want one!

cheers

Joe

[adam 32]

i dont think you need one joe