How Do I Know What Size Fuel Line I Have? Place the top of a 1/4-inch wrench with an open end over the fuel line.
Slide it carefully over the line so that it fits snugly against the tubing.
Read the wrench’s measurements to determine the diameter of the fuel line.
Place a caliper over the fuel line if the wrench did not give an accurate reading.
What size is my fuel line? Recommended Size, Based on Horsepower
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.
What size is 3/8 fuel line?
How much horsepower can a 3/8 fuel line support? A 3/8”id fuel line can easily support 600 HP given sufficient “pump head”!
How Do I Know What Size Fuel Line I Have? – Related Questions
What is the outside diameter of a 5/16 fuel line?
Is fuel line measured by ID or OD?
is fuel line measured ID or OD
Which fuel line is bigger 3/8 or 5 16?
The Difference Between the Two Sizes
What size is 4AN fuel line?
What does 3/8 of gas look like?
3/8 isn’t normally one of the ‘marked’ positions on an analogue fuel gauge. The marks tend to be EMPTY 1/4, 1/2, 3/4 and FULL. So you can figure out that at 3/8 the needle is halfway between 1/4 and 1/2.
How much horsepower can a 6an fuel line support?
at 45 psi for engines producing up to 870 hp naturally aspirated, or 725 hp forced induction.
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 much HP can line handle?
A stock 5/16 line will handle most any 10 second car .. And a 3/8 line will handle THE FASTEST car on this board. And a 3/8 line will handle THE FASTEST car on this board.
What size fits for a 5/16 hose?
Plumbing Basics – AN Fittings & Hoses
AN Size Hose i.
d.
– Tube o.
SAE Thread Size
-4 1/4 in.
7/16 in.
-20
-5 5/16 in.
1/2 in.
-20
-6 3/8 in.
9/16 in.
-18
-8 1/2 in.
3/4 in.
What size is rubber fuel line?
Neoprene fuel line is available in 1/8-inch through 5/8-inch sizes on bulk rolls, with additional 3-foot sections of large 1-1/2-inch through 2-1/4-inch sizes available for gas filler neck applications.
Does Lowes have fuel line?
Tubing and Hose Solutions at Lowe’s
What is the OD of a 3/8 hose?
7/16 in. O.D.
Is 5/16 fuel line big enough?
The 5/16 fuel line can surply enough fuel to even go faster. But the reason for a larger line is also so the pump doesn’t have to work as hard.
Is marine fuel line different?
Marine-grade fuel hose is much heavier than the same inside-diameter hose as used in automotive applications.
This is done as part of its fire or flame testing, a requirement under the regulations.
An important nuance found within the H-24 Standard is the difference between type “A” and type “B” hose.
What is the best marine fuel line?
Any ethanol resistant line will do fine. The key is to replace it about every 2 years. An OMC bulb is fine and they make either a 5/16″ or a 3/8″ size bulb.
What size is 10 an fuel line?
Russell Performance Technical Support
AN Size Metal Tube O.
D.
What does an mean in fuel line?
AN stands for Army Navy and is measured in AN Sizing.
