![]() ![]() Threaded bosses are welded to the top and bottom caps or sides as in the example below. A long tank allows any trapped air to rise to the top so it does not enter the high pressure pump. The tubing is usually 2.5 or 3 inch diameter and. 5 to 1 liter in capacity, made from either steel or aluminum tubing. Usually only one fitting is used on the bottom of the tank for feeding the high pressure pump. Most tanks will have three fittings on the top, one for feed from the low pressure pump, one for fuel returned through the fuel pressure regulator and one for the return back to the main fuel tank. The schematic below shows a common setup: (click for larger image) From here, if the surge tank is full, fuel is returned back to the main fuel tank. Fuel not used by the engine is returned from the rail, through the fuel pressure regulator, to the top of the surge tank. The fuel gravity feeds into this pump and goes to the fuel rail. A high pressure EFI pump will be mounted below the surge tank. Often the stock electric pump can be used. Fuel is piped to it by either a stock engine driven mechanical pump or a low pressure electric pump. Usually the tank is mounted in the engine compartment. ![]() The surge tank stores a small amount of fuel for the high pressure pump to pick up if flow from the main tank is interrupted for any reason. This is also useful on many stock EFI cars which have poorly baffled tanks. If you believe that this part is incorrectly listed, please let us know at Parts which are not legal for use on emissions controlled vehicles in California and states which follow California CARB rules will require an affidavit to be signed by the customer certifying the part's use on a vehicle which is not emissions controlled.To convert some carbureted vehicles to EFI, we recommend fitting a fuel surge tank to avoid fuel feed problems, especially during hard cornering. Please do your own research with the manufacturer to ensure that this part is legal for use in your state on the car you will be installing it on. For exact product weight and dimensions, please refer to the manufacturer's spec sheets or sizing sheets included in the description above or contact us.ĬARB and EPA Emissions Statement: Based on the information provided to us by manufacturers and our own knowledge, we do the best we can to determine the CARB and emissions legality of the parts we sell. Size and weight of different configurations may vary. ![]() This fuel surge tank is compatible with 39mm diameter internal fuel pumps such as: Any 3/4 AN6-AN10 fitting can be used if desired. Delivered with stainless-steel mounting plate for easy mounting, and 6x 3/4 AN8 fittings. For use on turbo-charged, super-charged and naturally aspirated engine applications. Designed to stand up to the destructive properties of alcohol fuels, including methanol and ethanol. As is the hallmark of Nuke Performance products, this tank is designed and manufactured to handle extreme amounts of power. With a high quality fuel surge tank like this designed for use with top tier pumps, fuel starvation should never happen. This is a potentially catastrophic situation, particularly in turbo applications, but also on naturally aspirated engines. By generating higher g forces, fuel can be pushed to one side or sloshed around too much causing starvation to the high pressure pump that supplies the fuel rail. With this tank you minimize the risk of fuel starvation when running at low fuel levels and where the fuel system can't cope with the extremely hard driving such as drifting, drag racing and track days. Individual fuel pump connections connection allow running one to three fuel pumps in two steps: either 1+2 or 2+1 with the dual setup of electrical connectors on the top lid. The Nuke Performance 2G 3 liter fuel surge tank can be run with up to three internal pump setup with its three 3/4 NPT AN8 outlet fittings. ![]()
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