Nigel Harris Posted April 18, 2014 Report Share Posted April 18, 2014 Hi, I have installed a 2nd Fuel pump. Can I set it to come on after say, 2000rmp ? if so how ? Or, am I better to just have both pump run at the same time ? Cheers Quote Link to comment Share on other sites More sharing options...
Steve1436215419 Posted April 18, 2014 Report Share Posted April 18, 2014 You can if you use the function 'FP speed' on one of your aux outputs ,and use the designated output to ground a relay feeding that other pump. You can span it over injector dutycycle and RPM. You CAN run both at the same time. It just depends on your system. One problem you MIGHT run into are 'regulator overrun' Thats when your pumps are pumping more fuel than your injectors use and what your regulator are able to bypass. Fuelpressure will then increase unnintencialy. Quote Link to comment Share on other sites More sharing options...
Steve1436215419 Posted April 18, 2014 Report Share Posted April 18, 2014 And of course there is the added heat that two pumps running full tilt will put into the fuel Quote Link to comment Share on other sites More sharing options...
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