SKU: 10820117841

Quick Fuel FX-4711-3 QFX Series 1150cfm Carburetor 2X4 setup 1.825 Venturi

Sale price$832.48 Regular price$924.98
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

Quick Fuel FX-4711-3 QFX Series 1150cfm Carburetor 2X4 setup 1.825 VenturiOverview: Serious drag racing demand a serious drag racing carburetor, and the QFX Series stands as the flagship model in QFT's lineup. Raised air horns improve entry angle into the venturi while ensuring undisrupted flow over the air bleeds. Annular boosters with CNC machined billet aluminum inserts provide increased air flow, a stronger signal, and less turbulence. QFX carbs offer unparalleled fuel atomization with annular boosters specific for

Overview:

Serious drag racing demand a serious drag racing carburetor, and the QFX-Series stands as the flagship model in QFT's lineup. Raised air horns improve entry angle into the venturi while ensuring undisrupted flow over the air bleeds. Annular boosters with CNC-machined billet aluminum inserts provide increased air flow, a stronger signal, and less turbulence. QFX carbs offer unparalleled fuel atomization with annular boosters specific for either gas, methanol, or E85 fuels. Five-emulsion billet metering blocks and four-corner idle circuits offer flexible tunability that today's high-horsepower engines demand. To cover a broad range of applications, methanol- and E85-compatible models, as well as two- and three-circuit fuel systems, are available. Ready to run out of the box, the QFX-Series carburetor will help you get to the winner's circle. QFX aluminum main body w/raised venturi Billet aluminum metering blocks with screw in restrictions Aluminum fuel bowls with dual sight windows and fuel inlets Nitrophyl® Floats (notched rear) and jet extensions Viton .130" Needles and Seats Billet Aluminum annular booster inserts QuickLink™ adjustable secondary opening adjustment Hand assembled and engine tested

Features:

     

    Application:

    Year Make Model Submodel Engine Size
    Universal

     

    Specs:

    Barrels 4
    Billet Color Red
    Booster Annular
    Brand Quick Fuel
    Carburetor Use Professional Race
    CFM 1150
    Choke None
    Circuit 3
    Condition New
    Emission Code 4
    Finish Shiny
    Fuel Gasoline
    Fuel System Carbureted
    High Speed Air Bleed 36
    Idle Air Bleed Size 47
    Intermediate Air Bleed 85
    Marine Use No
    Material Aluminum
    Model FX Series
    Primary Main Jet 94
    Primary Power Valve N/A
    Primary Pump Nozzle Size 37
    Product Type Carburetor
    Secondaries Mechanical
    Secondary Main Jet 94
    Supercharged Application No
    Throttle Bore 2.000 inch
    Warning California Proposition 65
    Warranty Limited 90 Day
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 10820117841

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    4.6 ★★★★★
    Based on 2177 reviews
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    Tharin
    Louisville, US
    ★★★★★ 5
    BUY THIS ONE!
    Model: NewSLS50_52
    This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
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    Reviewed in the United States on April 26, 2025
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    Verified Purchase
    Harvey
    Birmingham, US
    ★★★★★ 5
    Good stuff, but watch the temp
    Model: NewSLS50_52
    I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 16, 2023
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    Verified Purchase
    Lyrah
    Carnegie, US
    ★★★★★ 5
    Very efficient!
    Model: NewSLS50_52
    Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
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    Reviewed in the United States on November 23, 2025
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    Alexis
    Pawtucket, US
    ★★★★★ 5
    Supports DP Alt + Power Delivery from one source
    This is one of the very, very few USB-C hubs out there that successfully pushes DisplayPort Alt and 100w PD functionality from one source cable to one device. My monitor has a USB-C DP alt port that also pushes 95w PD and this hub successfully pushes both of those to my laptop, phone, and android handheld console. The marketing material says something about USB PD cannot work with DP alt, but it seems to be working fine for me so who knows. With this little hub in-between the link from the monitor to the device, I can now add a USB ethernet adapter and game controller, and I only ever have to plug one USB-C cable into my device (and I am using a USB4 extension cable with no issues as well) and it all works perfectly!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 21, 2026
    M
    Verified Purchase
    Mark N.
    Natrona Heights, US
    ★★★★★ 5
    Supports Reverse Charging a Laptop on Monitors with USB-C PD!
    This adapter is unique in that it supports reverse charging + video on the same port. I use this with an LG monitor (60W PD) and an M1 Pro Mac. At first, I had connectivity issues: hub was disconnecting and reconnecting every few seconds. I followed advice to update the firmware on the hub, but that didn't solve the issue. Turns out, my monitor also needed a firmware update. Once I updated the monitor firmware, it stabilized and has been working great ever since.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 4, 2025

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