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Old 01-15-2016, 05:52 PM   #11 (permalink)
phunk
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Join Date: Mar 2009
Location: Chicago
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Drives: 370
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pump service life will be unpredictable and short. The factory system uses a venturi instead of a small electric pump for this reason. The goal is to keep the one pump in the system wet and happy. To simply add another pump so that you dont have to depend on just the 1, neglects them both, and one or the other they will take turns running dry while you go about your merry way none-the-wiser.

The stock system will momentarily starve during a turn, and then begin to recover fuel. The proposed configuration it will starve, and then just keep on starving until the driver is kind enough to slosh the fuel back to the other side, thus letting the opposing pump run in a state of starvation instead.

So doing this will work in regards to drastically reducing pressure starvation to the rails/injection system (still not as well as the RRP due to available cubic inches for the fuel to slosh), but due to it heavily promoting individual pump starvation and abuse, its not an ideal system and cumulative wear to the pumps will eventually catch up.

The CJM RRP is able to preserve the factory fuel pump by sending all fuel pumped that the engine does not consume to the stock fuel pump to keep it wet. Its a strangely self defeating system in the sense that the RRP keeps the stock pump from starving much at all to begin with, while itself taking over the burden of providing the engines fuel pressure from within its own self contained fuel reserve that isnt subject to slosh since it is a small canister (surge canister).
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Last edited by phunk; 01-15-2016 at 05:54 PM.
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