after reading this in your tech corner...
"On most stock fuel systems the pump must draw the fuel through about three feet of hose from the gas tank to the fuel valve. After that, through another two feet of hose and a fuel filter. This long length of hose saps off a significant amount of fuel pressure and increases fuel pressurization times. To help resolve this on race boats, a direct line should be run from the reserve pickup on the gas tank to the carb. Along with this, it should be understood that the air space in the fuel system is the area that must be pressurized. If the air space is reduced by filling the gas tank, pressurization takes less time. Unfortunately many racers don't like the "nose heavy" handling that a full gas tank yields. For them a smaller gas tank is a wise solution.
The risk of inducing an over rich transition circuit mixture makes "pop off pressure reduction" an absolute last resort choice for solving the latent fuel pressurization that takes place in the starting area of a race."
im wondering if cutting out about 3 ft of hose in my fuel circuit is why im running rich.... i eliminated the line running all the way back across the boat and have it coming directly down from the valve thru a filter into the carb feeds.
"On most stock fuel systems the pump must draw the fuel through about three feet of hose from the gas tank to the fuel valve. After that, through another two feet of hose and a fuel filter. This long length of hose saps off a significant amount of fuel pressure and increases fuel pressurization times. To help resolve this on race boats, a direct line should be run from the reserve pickup on the gas tank to the carb. Along with this, it should be understood that the air space in the fuel system is the area that must be pressurized. If the air space is reduced by filling the gas tank, pressurization takes less time. Unfortunately many racers don't like the "nose heavy" handling that a full gas tank yields. For them a smaller gas tank is a wise solution.
The risk of inducing an over rich transition circuit mixture makes "pop off pressure reduction" an absolute last resort choice for solving the latent fuel pressurization that takes place in the starting area of a race."
im wondering if cutting out about 3 ft of hose in my fuel circuit is why im running rich.... i eliminated the line running all the way back across the boat and have it coming directly down from the valve thru a filter into the carb feeds.
