Fuel pump voltage stabilizer/ increaser | FerrariChat
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Fuel pump voltage stabilizer/ increaser

Discussion in 'Technical Q&A' started by Triple Black, Jun 20, 2015.

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  1. Triple Black

    Triple Black Karting

    Feb 8, 2014
    217
    Millington TN
    Full Name:
    David S
    #1 Triple Black, Jun 20, 2015
    I have been considering supercharging my 97 Mustang Cobra with a Kenne Bell unit. As part of the kit they supply a " boost a pump", a device that stabilizes the voltage to the fuel pump/s or can even increase the fuel pressure safely with higher voltage. Here is my thought, with all the voltage issues some Ferrari's have, this device seems like a no brainier to install. I could go on and on about this, but I think anyone interested in the idea of consistent fuel supply, should check this unit out.
     
  2. Prugna

    Prugna Formula 3

    Nov 13, 2014
    2,005
    Northern California
    #2 Prugna, Jun 20, 2015
    You cant get 20v out of a 13.5 alternator. That thing is just an electronic relay. Im not saying it doesnt work, but fuel pressure for boost is incredibly more delicate than normally aspirated because the boost is pushing back through the injectors.
     
  3. ///Mike

    ///Mike F1 Veteran

    Dec 11, 2003
    6,097
    Bugtussle
    #3 ///Mike, Jun 20, 2015
  4. Triple Black

    Triple Black Karting

    Feb 8, 2014
    217
    Millington TN
    Full Name:
    David S
    #4 Triple Black, Jun 20, 2015
    I think most people would be surprised by the fluctuations in voltage as you drive. This unit will keep the voltage constant to the pumps. Isn't that a good thing? Don't be surprised if cars go to 24 or even 36 volt systems in the near future. Higher volts means less amp draw, manufacturers could use smaller gauge wire, saving weight. Anyway, there are lots of racers using these boxes on their cars. No one wants to go lean on a blown engine.
     
  5. Cribbj

    Cribbj Formula 3
    BANNED

    Jan 1, 2011
    2,316
    Cooke City MT, The Coolest Small Town in America
    Full Name:
    John
    #5 Cribbj, Jun 20, 2015
    I've used Boost-a-Pumps on all my supercharged & turbocharged engines. I much prefer doing this than running 2 or 3 pumps in parallel to get the fuel output for high HP engines.

    By increasing the voltage to the pump, you don't actually increase its pressure - that's adjusted with the fuel pressure regulator. But it does increase the volume output of the pump.

    In conjunction with a PWM controller, and the Boost-a-Pump, I've been able to control the output of the fuel pump on a conventional return system from 220 lbs/hr to 650 lbs/hr. (These figures have been verified by RC Engineering.)

    This really helps to minimise the amount of hot fuel that gets bypassed and returned to the tank, because this return fuel tends to heat up the fuel in the tank, which causes the EVAP system to have to work harder, and there's loss of energy with hot fuel (less dense fuel has less energy in it).

    Some will argue that increasing the voltage to the pump will shorten its lifespan, however the intent is to boost it only when you need greater fuel output. And realistically, how long can you keep your right foot down with an engine that is consuming 650 lbs/hr of fuel (about 1200 HP)? Things are going to get pretty hairy in 5 to 10 seconds....... :)
     
  6. Triple Black

    Triple Black Karting

    Feb 8, 2014
    217
    Millington TN
    Full Name:
    David S
    #6 Triple Black, Jun 29, 2015
    I'm thinking about Evans coolant also. It has a boiling point of around 375 F. There are a lot of better products out there I want to hear about from members who have experience.
     

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