Secondly, much of the fuel line is under a slight vacuum, as the pump has to suck its supply of fuel from the opposite end of the car, often through the added restriction of a filter, which lowers the pressure in the fuel line even more. So if you move the fuel pump to the front of the car, underneath the fuel tank (there's no point in moving the mechanical pump, because there's nothing up there to drive it, so it must necessarily be an electric one), all the fuel lines near the hot engine run at elevated pressure, and the temperature at which the fuel will boil is a lot higher. I stated if the fuel pump has to suck through a filter, the pressure on the suction line will be lower.Didn't they teach you in school that a liquid boils at a lower temperature when its pressure is lower? There is no reason why the filter has to be on the suction side of the fuel pump.The important thing is that any vapour trapped in that line is shot back to the tank and the fuel pump stays primed with wet stuff.And they can even afford to have the filter before the fuel pump for its own protection.The Wolfsburg engineers, in all their wisdom, have solved the problem on their newfangled water-pumpers by fitting a small bleed back to the tank off a T-piece near the carburettor inlet.The amount of fuel going back to the tank is not enough to worry about - it makes the pump work slightly harder, that's all.
One particular one was "I kind of want to detonate atomic bomb again." This is NOT ACCEPTABLE TO BE BROADCASTED IN PUBLIC RADIO STATION. Or more precisely, how old are your cells..cells in your liver, or your spleen, or your brain?It's a question that's harder to answer than you think.Fuel Pumps and Other Matters Quiet Carbs Well-Balanced Carbs Short Cables The Last Word on Float Bowls A Whole Lot of Hot Air Racing Fuel Basics Fuel Injection and Engine Management Haltech Programmable Fuel Injection Mixture Screw Blues Big Bad and Beautiful Leaded or Unleaded Automatic choke adjustment Octane Number Explained VW’s FSI injection system What fuel is safe to use in my VW?By Rod Young July 1987Have you ever thought of replacing your mechanical gem, the Solex by Pierburg/Neuss item screwed to the top of your engine, with an electric fuel pump?Atomic testing that took place in the upper atmosphere has nothing to do with normal C-14 production.