Fuel pump upgrade

Discussion in 'Mustang Chit Chat' started by happycamper, Jun 30, 2022.

  1. happycamper

    happycamper Junior Member

    Had car on Dyno Monday. Finding my stock pump isn't able to keep up with my current setup.
    Was wonder what everyone is stepping up to. Looking for something to handle up to about 500 HP
    2006 Mustang GT 4.6 super charged automatic trans
  2. 07 Boss

    07 Boss Senior Member

    gt500 pump
  3. Andrey Sidorov

    Andrey Sidorov Member

    I have a walbro 400lph with sending unit from lmr, should be sufficient, i was pushing 450 wheel with it and relatively inexpensive, some go with gt500 dual pumps
    kdog likes this.
  4. Midlife Crises

    Midlife Crises Senior Member

    GT500 dual pump kit. No more worries.
  5. AHaze

    AHaze Member

    I have the same one keeping up with a Vortech pushing 9 PSI.
  6. Pentalab

    Pentalab forum member

    That poor oem 5r55s automatic transmission won't handle 500rwhp.

    Whether you go with dual GT-500 pumps, or OEM pump + BAP, use 8 ga wire, directly from battery terminal to trunk.

    I used 8 ga wire + stock pump, and reduced the FPDC by 10%. ( now down to 80%, with 390 rwhp on my 2010 GT auto + small roush M90 blower + LT's, FRPP twin 62mm TB..and 94 tune.
  7. 07 Boss

    07 Boss Senior Member

    Yep, The tranny life is limited. I am on my third. Was running just under 500 rwhp but now at about 460.
  8. skwerl

    skwerl tree hugger

    I went with the GT500 setup on mine as well. Relatively painless and very easy for my tuner to dial in. I ended up with 643 at the wheels on 93 octane. We hit 699 once on a glory run with race gas, was shooting for 700.
    golkhl likes this.
  9. MrBhp

    MrBhp Senior Member

    @JeremyH is the guy. He can supply you with the wiring and pump(s). He's done a great job with my issues. Your tuner may have a preference of single/dual pump setup. My tuner in Texas wanted me to install a return system on my car. I considered that a waste of time.
    GlassTop09 likes this.
  10. Laga

    Laga Senior Member

    Walbro 400L with a BAP running E85. No problems with at least 500 RWHP.
  11. Pentalab

    Pentalab forum member

    The dual GT-500 pumps is painless. And IF that wasn't big enough, a dual BAP can be added to the dual GT-500 pumps. But dual GT-500 pumps + a dual BAP will suck 40 amps out of the battery. A bare min of 8 ga wire required from battery terminals to trunk.
  12. Daniel Roberson

    Daniel Roberson Member

    Mine got a fuel pump booster.
  13. Tim Kramer

    Tim Kramer Junior Member

    Kenne Bell Boost-a-pump
  14. DieHarder

    DieHarder Senior Member

    Most cost effective solution...rebuild your own pump; add a walbro. Cost ~$100. As others have said you'll want to upgrade the power cable to the FPDM (8 gauge or larger - see attachment).

    Do it yourself Fuel Pump Upgrade:

    FPDM Fuel System Wire upgrade attached.

    Attached Files:

  15. Pentalab

    Pentalab forum member

    VMP and other's also make a BAP. It's just an Un regulated DC input to a constant, regulated 17.00 vdc output device. It's a DC to DC converter. You already have 14.75 vdc at the battery terminals..at idle. The BAP just brings it up some more, to 17 vdc....right in the trunk.
  16. Laga

    Laga Senior Member

    When you add the BAP or similar device, not only run a heavier gauge wire to the trunk. But also cut and splice it into the existing wire as close as possible at the fuel pump driver module. It is a white 18 gauge wire, IIRC. You want that wire as short as possible if you are going to push extra current through it.
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