Asked by: Iryna Schmidtmeierasked in category: General Last Updated: 24th April, 2020
How much HP is a Walbro 255 good for?
Hereof, how much horsepower will a 255lph fuel pump support?
A 255lph pump delivers about 410lb of fuel per hour so that's enough to feed about 750 crank hp with forced induction (assuming 0.55 BSFC) and 900 crank hp NA (assuming 0.45 BSFC).
Likewise, does a bigger fuel pump increase horsepower? The amount of horsepower that your engine has will determine how much fuel flow is required to support that engine. As horsepower increases so does the volume of fuel required to support that power. For example if your pump flows at 50 gph it should be able to support a 500 hp engine (50 x 10 = 500).
Also know, can a Walbro 255 handle e85?
walbro 255 is fine on E85 until around BBX Full/FP Red at full song, on the Evo 10. I'm guessing you have the stock turbo. You will be fine with a Walbro 255.
How much horsepower can a mechanical fuel pump handle?