Quote:
Originally Posted by V M Kauffman
You need 7.5 lb of pressure to move the column of fuel for each G of acceleration this is just to move fuel forward if the fuel cell is in the rear
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I read that too. Lateral acceleration doesn't translate well into G forces which are a pull against gravity. A Top Fuel car will pull something like 4 G so a 10,000 hp engine would need something like a 40 psi pump.
If the line was empty at launch, then there would be a force working against the pump, but since the system is fully pressurized I don't think this is that much of an issue. The force of launch could actually aide the pump. The fuel would be pushed to the back of the tank and out the exit line towards the pump forcing fuel into the system.
Dale