The prices of custom fuel pumps vary greatly, dependent on the specifications, performance that is required, and the material the pump is based on. Commonly, an introductory price for a custom fuel pump would be at approximately $300 for basic configurations able to improve a normal fuel system in lightly modified vehicles. Often, high-performance or race applications will require increased pressure and flow capabilities that raise the prices between $500 and $1,500. These service pumps are designed for high-performance applications where the power output of an engine is particularly high, usually in excess of 500 horsepower, where a conventional fuel pump cannot provide the required volume or pressure.
Custom performance fuel pumps should have higher flow rates measured in liters per hour. While the flow rate of a standard fuel pump is about 100-200 LPH, performance custom pumps for engines range from 300 to 500 LPH to supply enough fuel under extreme conditions. According to Bosch, one of the top suppliers for automakers, a high-flow fuel pump is quite important in turbocharged or supercharged applications as it helps to avert lean conditions that can definitely destroy the internals. For those drivers that have this kind of performance, a custom fuel pump becomes necessary, even if the price is well over a standard replacement.
Custom fuel pumps also tend to use materials designed to survive higher-than-normal pressures and fuels, like E85 or racing fuels, that are more corrosive compared to ordinary gasoline. For instance, pumps that are able to handle E85 will be fabricated from ethanol-resistant materials and generally cost 15–20% more than a regular custom pump owing to the requirements related to durability. Fuel delivery and pressure stability are another important consideration; higher-dollar pumps often utilize sophisticated pressure regulation mechanisms to ensure consistency, further adding to their overall cost.
With the addition of installation fees, a more complex custom fuel pump could be upwards of an additional $200 to $500, contingent on extra modifications that may be necessary to fit the new pump in. According to ChrisFix, "A custom fuel pump is not an upgrade-it's an investment for reliable performance." He meant that with quality installations, the pump will work as intended. Indeed, with regard to reliability and long-term performance, a good-quality Fuel Pump with professional installation usually pays off dividends among the enthusiast circle.
Finally, a specially designed fuel pump to meet the very extreme demands of such a high-performance engine provides the ultimate in fuel flow, health to the engine, and meeting the needs associated with modified or race applications. It is indeed an expensive investment, but this one surely does the work needed when it comes to performance and durability for those engines demanding specialized fuel delivery.