An fuel line size chart
An Fuel Line Size Chart. Given a big enough pump a 3/8” steel line could support 1000 hp. If the pressure falls as the engine rpm’s go up you need more pump head.
If the pressure falls as the engine rpm’s go up you need more pump head. The return lines, which are the fuel lines after the regulator, can generally be one size smaller than the feed line. Given a big enough pump a 3/8” steel line could support 1000 hp.
1 An fuel line size chart
More Pump Head Can Be Achieved With A Bigger Pump.
This is to ensure adequate delivery of fuel in the event of an unseen problem (i.e. Given a big enough pump a 3/8” steel line could support 1000 hp.
A 3/8”Id Fuel Line Can Easily Support 600 Hp Given Sufficient “Pump Head”!
When designing a fuel line system for these fuels, go one and two sizes larger than the gasoline requirement. The simple way to know is to install an electronic fuel pressure gauge.
Return Lines (The Fuel Line After The Regulator) Can Generally Be One Size Smaller Than The Feed Line.
If the pressure falls as the engine rpm’s go up you need more pump head. The return lines, which are the fuel lines after the regulator, can generally be one size smaller than the feed line.
