Author Topic: Fuel Lines (Read 2343 times)

Vince Carucci · « **on:** July 04, 2020, 06:56:09 AM »

I wonder if anyone would share their fuel line information.

The first thing I wonder is line size (1/8 or 1/4 ID). Can 1/8 supply enough fuel to a 45 hp VW?
The blue aluminum fittings seem to be for flared metal tubing. Can poly tubes be used with these fittings
Is anyone using Nylon compression fittings. They are cheep and light. Are they strong enough?
Brass fittings are inexpensive and can be found in compression type. Does brass react with aluminum?
Metal or poly tubing?
Where did you place the fuel shutoff valve?

ACS and Wicks both offer a variety of fittings. Would anyone care to share their thoughts/recommendations/warnings?

Vince

Kamcoman77 · « **Reply #1 on:** July 04, 2020, 11:49:01 AM »

Try this website: http://www.calctool.org/CALC/eng/civil/hazen-williams_g It should let you enter tube size, length of tubing, amount of tubing drop. When I used the calculator it showed 5.5 gallons per hour for 1/8" ID, 6-ft long with 2-foot drop tubing. Hard for me to believe it. I'll be using 5/16" ID plastic fuel line with push-on fittings & hose clamps. As for a fuel shutoff, I'll be using the item pictured. $20 on eBay. It will mount in the bottom of my fuel tank, in a small sump area. Here is another fuel flow calculator with similar results: https://www.omnicalculator.com/physics/pipe-flow