by Turbosolara » Wed Sep 03, 2003 11:46 am
regarding injectors, duty cycle shouldnt really be above 85%. i heared the duty cycle should be let it be about 40-60% would be ideal value.
the other reason is our solara runs returnless fuel system, that make the fuel pressure STABLE. The fuel pressure regulator is build inside fuel tank instead of next to fuel rail. with return line, the pressure is regulated at the fuel rail, the excess pressure/fuel will go back to tank via return line.
here is what i saw from holley
Fuel Requirements
Typically, at wide open throttle, full power, an engine requires 0.5 lbs. of fuel per horsepower every hour. A gallon of gasoline weighs approximately 6 lbs. Therefore an engine rated at 350 horsepower will require about 175 pounds (29 gallons) of fuel every hour.
(350HP x .5lbs = 175 lbs of fuel, 175 lbs/6 lbs = 29 gallons per hour)
Fuel Pressure and Volume
The relationship of pressure to volume is directly proportional. That is, as pressure increases the volume will increase, everything else being equal. A certain amount of fuel pressure is always required to maintain engine performance by assuring that fuel is available on demand. Also, other factors and conditions must be taken into account such as acceleration G-forces and friction within the fuel system itself. At the same time, however, an adequate fuel volume is needed to ensure that the proper amount of fuel can always flow to the engine, especially during peak demand situations. A basic understanding of this critical pressure/volume relationship is needed when designing the proper fuel supply system for your vehicle.
the other reason is our solara runs returnless fuel system, that make the fuel pressure STABLE. The fuel pressure regulator is build inside fuel tank instead of next to fuel rail. with return line, the pressure is regulated at the fuel rail, the excess pressure/fuel will go back to tank via return line.
here is what i saw from holley
Fuel Requirements
Typically, at wide open throttle, full power, an engine requires 0.5 lbs. of fuel per horsepower every hour. A gallon of gasoline weighs approximately 6 lbs. Therefore an engine rated at 350 horsepower will require about 175 pounds (29 gallons) of fuel every hour.
(350HP x .5lbs = 175 lbs of fuel, 175 lbs/6 lbs = 29 gallons per hour)
Fuel Pressure and Volume
The relationship of pressure to volume is directly proportional. That is, as pressure increases the volume will increase, everything else being equal. A certain amount of fuel pressure is always required to maintain engine performance by assuring that fuel is available on demand. Also, other factors and conditions must be taken into account such as acceleration G-forces and friction within the fuel system itself. At the same time, however, an adequate fuel volume is needed to ensure that the proper amount of fuel can always flow to the engine, especially during peak demand situations. A basic understanding of this critical pressure/volume relationship is needed when designing the proper fuel supply system for your vehicle.
2002 Lexus IS300 5MT
1997 Prelude base, 5MT
1997 Prelude base, 5MT
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