If your performance vehicle or modified vehicle runs E85 fuel, a high-flow E85 fuel pump is the most vital upgrade to achieve a more reliable fuel deliverance and an efficient engine operation. An E85 fuel pump is designed in such a way that it can deliver ethanol blended fuel like E85 (which is equal to 85% ethanol with gasoline) without any premature wear out or starvation under high demand.
A perfect example of this is the OSIAS 400 LPH E85 Compatible High Flow Fuel Pump. This is a performance-oriented pump designed for high flow of fuel and at the same time, compatible with ethanol blends. This type of pump can now supply a stronger and more constant pressure of fuel and pressure, compared to many of the stock units, and is therefore widely preferred for cars and trucks running on E85 or those tuned to higher power.
How an E85 Fuel Pump Works
Unlike a standard gasoline fuel pump, an E85 fuel pump is made with materials and internal components that resist the corrosive and solvent effects of ethanol. Ethanol can degrade rubber seals, hoses, and less robust metals over time, which may eventually lead to leaks or pump failure. E85 fuel pumps use ethanol-resistant components and designs that maintain strong fuel delivery even under higher pressures and sustained use.
Most times, fuel pumps will usually sit in the tank (in-tank design) and are engineered to supply a higher volume of fuel. A 400 LPH (liters per hour) high-flow pump supplies more fuel to an engine than most original equipment pumps, which definitely serves to support higher power levels or boosted setups without fuel starvation.
Main Benefits of an E85 Fuel Pump
1. Stronger Fuel Flow
E85 needs a lot more fuel due to the fact that it does have less energy per gallon when converted to gasoline. The high-flow pump provides additional fuel to the engine in order to keep the air-fuel ratios within the correct bounds, especially considering the higher power levels.
2. Ethanol Compatibility
These E85 fuel pumps carry ethanol-resistant components so that their internal parts do not deteriorate shortly due to exposure to the high concentration of ethanol. This adds life to the fuel pump because it lasts longer than standard gasoline ones, which were not always rated for high amounts of ethanol.
3. Supports Performance Mods
A high-flow E85 fuel pump is required if you fit any performance upgrades to your vehicle, such as turbocharging, larger injectors, and aggressive tuning since a high-flow E85 fuel pump retains air-fuel ratio levels when compared with increased fuel demand. Many performance builds push their stock pumps to their limits, which can lead to engine hesitation or loss of power.
4. Steady Operation Under Load
Whether racing, towing, or just enjoying spirited driving, a fuel pump that can maintain steady pressure and flow at higher demands reduces your exposure to the risk of fuel starvation or lean conditions that could fracture engine components.
What to Look Out for Before Upgrading
Here are some pointers to consider before upgrading to an E85 fuel pump:
Compatibility with the fuel system: Ensure that all components that make up your fuel system (filters, lines, and injectors) are suitable for E85. Ethanol is sometimes harsh on components that are not rated for this fuel.
Tune: Most engines that run E85 need a tune to be calibrated so they can compensate for the differences in the combustion characteristics and fueling needs.
Electrical Load: Because high-flow pumps draw more current than stock units, the wiring and possibly the fuses up to that point may need to be changed to accommodate that additional load.
Final Thoughts
A good upgrade for anyone planning to run E85 regularly, especially in a performance or modified vehicle, is adding a high-flow E85 OSIAS fuel pump. It provides superior fuel flow; better, livelier flow and avoids the aggressive action of ethanol while supporting higher horsepower construction. The engines that work with ethanol blends but don’t have the right pump in place experience performance flaws and wear out parts more prematurely, which makes every angle of matching fuel pump with setup important in reliability and performance.
