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Stock fuel pump?

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    #1

    Stock fuel pump?

    Any idea how much boost/HP you can run on the stock pump? I'll be using 450cc DSM injectors.
    Tags: None
    #2
    Originally posted by WeDgE
    Any idea how much boost/HP you can run on the stock pump? I'll be using 450cc DSM injectors.
    i was running 12psi daily, but recently changed it to 5.5

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      #3
      I wouldnt chance it at all just change it why take risks.

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        #4
        Originally posted by h22sparkle
        I wouldnt chance it at all just change it why take risks.
        Because I'm not made out of money. Though, I can buy one if it's *needed* but if it isn't, then I won't.

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          #5
          Its only 85 dollars compared to the 300 youll be spending if you blow your shit up . And i dont think you wanan do that trust me bro fork over the 85 bucks. Hey if it does happen god forbid atleast you can say well atleast i did do this and this what i can before that happened.

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            #6
            Accord r33 and midnite are both using stock fuel pumps, right? So id say 12 or less, most likely 10 would be my suggestion though!

            WaC!

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              #7
              Stock Fuel Pump

              My stock pump has 1/4 million miles on it. I'm running 12psi with 450's and neptune management. If you keep the fuel pressure stock (43psi with the vacuum tube disconnected, of course), you won't stress the pump. Get your fuel enrichment through the injectors not the fuel pressure. Boost-dependent FMU's SUCK! They murder fuel pumps; stock or not. The honda regulator is a 1:1 regulator. It will add 1psi of fuel pressure for every pound of boost. My fuel gauge reads a steady 55-56psi of fuel at 12psi, WOT, 11.2:1 A/F, 52% duty cycle. At idle its about 36psi w/14.6:1 A/F. I know I should run the Walbro GSS341(255HP). I'm planning on doing it soon. I just need the time to drop the tank. The pumps like 90 bucks. Cheap!

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                #8
                Wow sounds good man you should post pics!

                WaC!

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