| Horsepower | Rigid Line Size | -AN Hose Size | Pump GPH at System Pressure | Pump GPH Free Flowing |
| 200 | 5/16" | -04 | 17 | 46 |
| 350 | 3/8" | -06 | 29 | 81 |
| 550 | 1/2" | -08 | 46 | 127 |
| 800 | 5/8" | -10 | 67 | 184 |
| Recommended Fuel Line Size (from the tank to the pump) | ||
|---|---|---|
| Engine Output | Size (inches) | Size (AN) |
| 350-450 hp | 3/8 in. | -6 |
| 450-650 hp | 1/2 in. | -8 |
| 650-1,000 hp | 5/8 in. | -10 |
What size fuel line do I need for my engine?
Recommended Fuel Line Size (from the tank to the pump) Engine Output Size (inches) Size (AN) 350 hp or less 5/16 in. -5 350-450 hp 3/8 in. -6 450-650 hp 1/2 in. -8 2 more rows ...
How much HP can a 3/8 inch fuel line support?
A 3/8”id fuel line can easily support 600 HP given sufficient “pump head”! Given a big enough pump a 3/8” steel line could support 1000 HP. The simple way to know is to install an electronic fuel pressure gauge.
Will increasing the fuel line size to ½” help?
Will increasing the line size to ½” help? Yes the pressure drop thru a ½” line is a nominal 5 feet versus 35 feet for the 3/8” id fuel line. The ½” line will result in a ½ pound drop versus the 3 pound drop for the 3/8” line at the stated flow of 83.3 gph (enough to support 1000 HP at a BSFC of .5).
Do you run more fuel line than you need?
Lots of strange information out on the internet regarding fuel line sizing and it seems like most of the time people run way more diameter fuel line than they need. This is an interesting article that I came across that seems to be pretty relevant. Quick reference for AN to Inch line conversion: -6AN = 3/8" -8AN = 1/2"
How much HP can a 3/8 fuel line support?
A 3/8”id fuel line can easily support 600 HP given sufficient “pump head”!
How much horsepower will a 5/16 fuel line support?
If you're just cruising around with a carbed SBC, you'll probably be fine with a 5/16" line up to about 500 HP because you'll never tax the system enough to starve the motor of fuel.
How do I know what size fuel hose I need?
1:293:13How To Measure the Diameter Of Any Hose - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo it's 6 over 16 so 6 6 / 16 very very simplest and all that you do is you're taking 6 sixteenthsMoreSo it's 6 over 16 so 6 6 / 16 very very simplest and all that you do is you're taking 6 sixteenths of an inch and divide it by 2 if you can so 6 16 divided by 2 is 3/8.
Does bigger fuel line size matter?
Fuel line diameter matters A LOT! A larger diameter is generally better, but the correct diameter is the best choice. If the diameter is too small: you won't be able to support your horsepower goal. If the diameter is too big: the lines will take longer to pressurize.
What size fuel line should I run?
Recommended Size, Based on HorsepowerRecommended Fuel Line Size (from the tank to the pump)Engine OutputSize (inches)Size (AN)350 hp or less5/16 in.-5350-450 hp3/8 in.-6450-650 hp1/2 in.-81 more row•Sep 16, 2017
Does fuel line size affect pressure?
Shows the relationship between measured pressure drop as a function of flow rate, for four different fuel lines (two different sizes at two different lengths). Every fuel line experiences pressure loss depending on fuel line length, and fuel flow rate.
What size is 3/8 fuel line?
Understanding Fuel Line Fittings: Straight Thread (and AN) vs. Tapered ThreadAN SizeTube or Hose ODTube or Hose ID-4¼”.172”-55/16”.062”-63/8”.297”-81/2”.391”9 more rows•May 6, 2015
What size fuel return line should I use?
The Fuel Return Line should be at least the same size, or one size larger than the supply. Make sure there are no sharp bends or kinks. The return line should direct fuel close to the bottom of the tank and away from the pickup.
What is the outside diameter of 3/8 inch fuel line?
JEGS Aluminum Fuel Line | 3/8 Outside Diameter | 0.035” Wall | 25 Feet | 25 PSI Maximum Pressure | Seamless.
What size fuel pump do I need for 1000hp?
Making the ChoiceFuel Pump Free FlowCarbureted EngineFuel Injected Engine50 gph/190 lph600 hp500 hp67 gph/255 lph750 hp650 hp90 gph/340 lph1000 hp850 hp125 gph/470 lph1300 hp1000 hp2 more rows•Nov 26, 2019
How much HP will a Holley black support?
The Holley Red pump flows 97 gph and supports 425 hp, while the Blue pump flows 110 gph and supports 550 hp. Stepping up to the Black pump yields 140 gph and 750 hp.
What size is metal fuel line?
For most recent cars, supply is 5/16" and return and vent are both 1/4".