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 |
| 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 |
What is the correct size fuel line?
correct fuel line for Predator 212 3rd generation
- Coverfire. Hey all, I tore the original fuel line on my Predator 212 plus it wasn't long enough to reach my new carburetor anyways and I'm having a hard time ...
- landuse. I would say you found the right stuff.
- Karttekk. OMB Warehouse - Go Kart Parts and Mini Bike Parts. ...
- Karttekk. ...
- Coverfire. ...
- madprofessor. ...
- Coverfire. ...
- madprofessor. ...
- madprofessor. ...
- Karttekk. ...
What size fuel line should I run?
No matter how many bends and what not you have in the line to the pump, you still cannot flow more than the 5/16 tube can supply. In the short run, you can make 3/8 rubber fuel line connect 1/2 and 3/8 hard line. Not a good long term, but it will work until you have time.
What is size of fuel line do I Need?
Hoses come with different US Coast Guard ratings; A1, A2, B1, and B2:
- A1 Hoses: Are used for feeding fuel from the boat fuel tank to the fuel filter bracket or the engine. ...
- A2 Hoses: Are used for the fuel tank vent hose below the deck. ...
- B1 Hoses: Are used for feeding fuel from the boat fuel tank to the fuel filter bracket BUT ABOVE THE DECK OR NOT ENCLOSED! ...
How to measure fuel line fittings?
Tapered Thread
- Thread Types: Straight Thread - With straight thread the threads run parallel. ...
- AN Standards. High-end racing and performance fuel delivery systems most frequently implement fuel lines and fittings manufactured to AN Standards.
- Common Types of Fittings. ...
What is fuel hose?
A fuel hose（ https://en.wikipedia.org/wiki/Fuel_line ） is a hose used to bring fuel from one point in a vehicle to another or from a storage tank to a vehicle. It includes Fuel injection hose, Marine fuel hose, Farm fuel hose, Diesel fuel hose, Fuel transfer hose.
What is marine fuel hose?
Marine fuel hose is specifically designed and branded for use in supplying fuel to motors in boats or marine vessels.
What is the minimum feed line for an E85?
For instance, an 8AN feed line and 6AN return line on a 1000 horsepower gasoline or race gas powered LS with 30psi is sufficient. However, on an E85 combo, we recommend a 10AN feed and an 8AN return minimum for the same setup minus the fuel change. We also like to take into account your future goals, and whether you order these lines and components from us, we suggest you do as well!
How much methanol does a gasoline engine use?
Methanol fuels use approximately double the amount of fuel of gasoline to reach a target power level. In the event that you are using Methanol in replacement of an intercooler (commonly referred to as running the engine "wet") you may use even more Methanol.
Can I undersize fuel lines?
Can I undersize fuel lines? Yes, not just the feed line, but the return line must be large enough to not only flow the required amount to feed the engine, but the return line is important for allowing a fuel pressure regulator to effectively do its job.
What fuel line do you need for a Honda engine?
The general rule of thumb still stands regardless of what manufacturer engine you have! Whether it be Honda, Mercury, Yamaha, Suzuki, Tohatsu, Nissan, or Johnson/Evinrude. Any engine that is above the 115 HP requires you to use a 3/8″ fuel line! The basic functionality of a combustion engine and the fuel demand for the horsepower is the same!
How to know what fuel line is on a combustion engine?
The basic functionality of a combustion engine and the fuel demand for the horsepower is the same! You will also know what fuel line is supposed to be there by looking at the hook up on the engine. Wherever you hook up the fuel line on the engine there will be a hose barb. If it is a 5/16″ or a 3/8″ hose barb, that is what you should use.
What is the A2 hose used for?
A2 Hoses: Are used for the fuel tank vent hose below the deck. They aren’t designed to have fuel sitting in the hose but do have a fire-resistant covering on the outside of the hose. B1 Hoses: Are used for feeding fuel from the boat fuel tank to the fuel filter bracket BUT ABOVE THE DECK OR NOT ENCLOSED!
What is the difference between a B2 and A1 hose?
They are basically the same as the A1 hoses but do not have the fire-resistant covering that is on the outside of the hose. B2 Hoses: Are used for the fuel tank vent hose BUT ABOVE THE DECK OR NOT ENCLOSED! Basically the same as the A2 hose but without the fire-resistant covering on the outside of the hose.
Why is my fuel pump running lean?
If the fuel pump is sucking in air every time it tries to get fuel, it will aerate the fuel and run the engine lean. Giving you all kinds of different problems!
What is the difference between a 5/16 and 3/8 fuel line?
We get it. But there is a little more to it than that. The 5/16″ fuel line is actually perfect for smaller outboards. Being a little smaller than the 3/8″ hose, it works great for little kicker motors, and sailboat outboard engines.
Why is it important to have a fuel line installed?
Going back to the straw theory, having the correct fuel line installed will help ensure the proper fuel consumption for the engine. Thus, keeping up and even prolonging the life of the engine. You don’t want to cause premature failure of the engine or any of the components that are in the fuel system.
How many whp can a fuel line hold?
For most applications the factory fuel lines have been able to support around 500 wh p. There are variations to this based on each vehicle and the fuel being used. For example if using E85, which requires 30% more fuel to reach stoic conditions, you would need to size the fuel lines even larger. If unfamiliar with ethanol based fuel, be sure to check out our article here on ethanol-based fuels.
How many whp is a stock fuel line?
Up to 500-550 whp: Stock Fuel Lines
Why is the return fuel line smaller than the supply line?
The reason for this is that the return line will always flow less fuel being that the motor is using a portion of the supplied fuel to burn and run the motor. Things look for when buying fuel line .
Is methanol good for fuel lines?
Many users today are discovering the benefits of using ethanol based fuels or methanol. While these fuels are great, not all fuel lines are rated to withstand their corrosive properties. Therefore it is important when purchasing fuel lines that you are realistic with the fuels you MAY end up running in your vehicle.
MAKE SURE YOU HAVE THE CORRECT GAS LINE SIZE FOR YOUR BURNER!
This is such an important part of making sure your fire pit has nice, tall flames! It’s the number one mistake I see people make when shopping fire pits. Watch the video, read the charts and make sure your Fire Pit works great!
EXTREMELY Important Gas Line Sizing Information
The biggest mistake that we see people make is not running a large enough gas line, or choosing a burner that operates at a much higher BTU rating than they’re line, gas meter, or LP tank can supply. The burners operate well even at 70% of the fuel capacity.
A Reference Chart for Propane Tank Pipe Sizes
It is best to always consult a qualified and certified technician to advise on the best piping that is needed for your propane tank to properly fuel your appliances. Provided here is a guide for more information for you to refer to.
What You Need to Know About Copper Piping with Your Propane Tank
The service line from the propane tank to the building must be safe and maintain a constant energy supply for the appliance needs. Copper piping is an exceptional option for this connection line as it is flexible and bendable to maneuver through other appliances and obstacles.
What is Polyethylene Tubing?
Not to be confused with PVC piping, which is polyvinyl chloride, polyethylene, PE for short, is often used in underground utility work. PE has the added benefit over PVC of being more flexible and is able to work with natural gasses as PVC cannot.
How to Read this Chart
Before jumping into the Line Sizing Chart, here is a key for you to refer to in order to translate any abbreviations you do not know: