Quote:
Originally Posted by Don@Accelerated
The first thing we had was a surge tank. Unfortunately that doesn't work well.
The factory tank has a crossover pulsation siphon system. The larger flow pump throws that system off. That is primarily one of the reasons people are seeing a starvation problem in corners.
The surgetank relies on the primary system to fulfill its requirements. If the primary system doesn't keep up, your surge system falls off.
Example
2 Pumps in a surge tank for High HP Systems. Requires a 2 Pump lift system to provide an adequate amount of fuel flow over a duration of time. You either need to have a large surge tank, or have enough flow to keep up with the demands of your consumption.
Ok so now we've got 4 pumps in the system. All of them are relatively expensive. We've got an additional enclosure full of gas to kill you in an accident and just another place to leak. Ok Great! 
So now lets say you have a 1/2 tank of gas and your considerably below the hump in the primary tank. The pulsation pump will not keep the primary side of tank at an adequate level with the two pumps to keep up the flow to fill the surge tank.
So what do you end up with here. We end up w/ a system that costs considerably to much. Can't run very low, possibly a fire hazard and has flow issues under cornering.  |
What about 2 lift pumps in-tank? Both feed directly into a y-connection to an inline primary pump which feeds the motor. True it's complex, but that way even at < 1/2 tank, you'll have pumps to pull fuel from.