In todays video we bring you a detailed look on surge tanks brought to you by Jay from Real Street Performance.
As you progress in making more horsepower, you need to also progress your fuel flow and volume. As you do so, a single pump may not be up for the task. In some applications you're able to run a dual or triple fuel pump hanger, but there are some problems you may encounter with this like cavitation or starvation under lower fuel levels as the size of a factory fuel basket was engineered for a single pump.
In a fuel pump module style application, the hanger , pump, and sensor are all built into a single assembly. You may try to change or upgrade the internal pump of one of these modules, and given the tight space you may possibly cause a fuel leak within the assembly, thus defeating the purpose of your attempted upgrade.
For vehicles equipped with a saddled fuel tank like those needed for driveshaft clearance you usually rely on the ventury effect inside the tank allowing one side to feed the other, and you risk jeopardizing that harmony when changing that in tank pump. Make sure to do your research before going this direction.
Another method is a sumped tank, where a low point is placed under the fuel tank to allow a gravity feed to an externally mounted fuel pump. This opens the door to sloshing or cavitation to affect the delivery to the sump under cornering or hard braking.
An aftermarket Fuel Cell can be used in some applications, but are often a larger, non-formed chassis unit, or smaller for universal fitment with less range provided as the storage capacity is lowered. Along with this application, you often lose the ease of a factory fuel level sensor being used with your factory gas gauge.
A surge tank is a remote reservoir that goes between the gas tank and the engine, and can hold up to three fuel pumps. The surge tank is provided with low pressure high volume fuel using the factory pump, maximizing fuel flow efficiency out of the pump. Once the tank reservoir is full, your surge tank fuel pumps can deliver fuel to your engine without the problems mentioned above.
Jay then touches on a few important things to look for during your surge tank selection process, and how to maximize the efficiency of your fuel system. Check out the full video
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3 июл 2024
