zerotofifty
Samba Member
Joined: December 27, 2003
Posts: 4237
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 Posted: Mon Mar 18, 2024 5:53 pm Post subject: Re: Metal Fuel rails.. GoWesty? VanCafe? Others? |
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| The Machinist wrote: |
Does anybody know what the actual function of the fuel rails is? My best guess is that it is sort of a buffer chamber to smooth out the pulsing of the fuel injection system. With two inlets and two outlets, all of them connected to the same chamber, the fuel just flows in and back out. I was careful to match the factory dimensions as closely as possible, assuming that the volume of the chamber is important. Otherwise it seems like you could just do away with the fuel rails altogether.
There is another fuel rail that is machined with a much smaller bore connecting the inlets and outlets. Is that even providing the function that these were made for? I wonder if it has any effect on how the engine runs. |
The system recirculates the fuel, this helps eliminate vapor lock by always keeping the fuel flowing regardless of amount consumed by the engine.
The rail is a way of hooking it up in a loop, so no dead ends that might heat soak over the hot head.
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