SKU: 1031091866

QUICK FUEL TECHNOLOGY 850CFM Carburetor - E85 Drag Race P/N - Q-850-E85

$629.98 $699.98
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Ships within 48 hours · Estimated delivery Oct 11 - Oct 16

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Description

QUICK FUEL TECHNOLOGY 850CFM Carburetor - E85 Drag Race P/N - Q-850-E85Overview: Ideally suited for bracket racers and weekend warriors alike, Q Series carburetors are purpose built for the dragstrip. To combat the g's experienced during hard launches, Q Series carbs are equipped with notched floats and secondary jet extensions. The high flow aluminum main body isn't just lightweight, but it also features recessed air bleed cavities for improved air flow. Die cast venturi are machined to exacting tolerances for

Overview:

Ideally suited for bracket racers and weekend warriors alike, Q-Series carburetors are purpose-built for the dragstrip. To combat the g's experienced during hard launches, Q-Series carbs are equipped with notched floats and secondary jet extensions. The high-flow aluminum main body isn't just lightweight, but it also features recessed air bleed cavities for improved air flow. Die-cast venturi are machined to exacting tolerances for outstanding throttle response. Billet metering blocks ensure a uniform fuel curve, while throttle-bodies enhance durability. For those days when track conditions vary from one pass to the next, QFT's QuickLink system makes adjusting the secondaries easy on models equipped with mechanical secondaries. The Q-Series is our most comprehensive line of carburetors, with applications available for use with gasoline, methanol, and E85 fuels, forced induction, drag race, circle track, and comes in both vacuum and mechanical secondary models. Lightweight aluminum main body Vacuum and mechanical secondary models available Aluminum fuel bowls with dual sight glass windows Billet metering blocks with 4-corner idle system Changeable idle feed and power valve channel restrictions Billet aluminum throttle body provides exceptional precision and strength PTFE coated and sealed shafts

Features:

     

    Application:

    Year Make Model Submodel Engine Size
    Universal

     

    Specs:

    Barrels 4
    Billet Color Red
    Booster Down Leg
    Brand Quick Fuel
    Carburetor Use Performance and Race
    CFM 850
    Choke None
    Circuit 2
    Condition New
    Emission Code 3
    Finish Shiny
    Fuel E85
    Fuel System Carbureted
    High Speed Air Bleed 31
    Idle Air Bleed Size 65
    Marine Use No
    Material Aluminum
    Model Q-Series
    Primary Main Jet 86
    Primary Power Valve 45
    Primary Pump Nozzle Size 37
    Product Type Carburetor
    Secondaries Mechanical
    Secondary Main Jet 94
    Supercharged Application No
    Throttle Bore 1-3/4 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: 1031091866

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    4.8 ★★★★★
    Based on 23 reviews
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    Product Reviews
    D
    Verified Purchase
    dacker
    Natrona Heights, US
    ★★★★★ 5
    Rejuvenates your Robovac, but one caution
    I was a little wary buying third-party aftermarket parts for my Eufy Robovac 30c, however, all the parts in this kit are virtually identical to OEM parts. I replaced all three brushes and all three filters and let it loose on my Golden Retriever-inhabited living room. I can honestly say the result was a 50% increase in the amount of fur collected. I suspect that over time there is a loss of performance so gradual that it's easy to not notice. I assume the new filters returned the vacuum power to it's original level of suction was a big factor. When I was browsing through all the available choices here on Amazon, a plastic "ring" kept appearing in many of the product images, however, people did not know what it is for or simply did not get one in their shipment. If you look at the photos I've attached one can see that I did indeed get one and figured out its purpose, to remove fur and/or hair from the horizontal brush. The bottom line is that I would definitely buy this item again. =========== EDIT, four weeks later: Since replacing the main roller brush with the one included with this product, I have experienced several “Roller brush is stuck” shutdowns and alerts. In each case, there has been nothing tangled in the brush and the brush was free to spin. I have to say it’s quite annoying to come home expecting the floor to be cleaned but only to find this error long before the job was finished. Today it gave this error twice in one cleaning cycle. I never experienced this problem with the OEM roller brush.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 8, 2019
    S
    Verified Purchase
    SFriedman
    Carnegie, US
    ★★★★★ 5
    Euphy works good as new!
    Style: 19 Pack
    As soon as I opened the package everything looked the same- pre-filters, filters, main brush, and side brushes. I changed the big brush first;the only issue was the new brush body didn't have the white arrows to help aligning but that didn't affect how the brush worked. I changed filter and pre-filter, and finally the side brushes. When I turned on my "Goophy" and tried to let her run the side brushes were a little too (Goophy's side brushes sounded a little louder). I trimmed the side brushes a little and all was well. Goophy didn't want to run herself but it didn't take long for me to figure out it wasn't the new brushes ;just the operator pushing the wrong button. My Goophy Euphy did what she was supposed to do- vacuum the carpet and tile floor. Goophy Euphy still wanted to take the long way to her charging station which was nothing new and easily corrected. Over all the new brushes and filter restored Goophy Euphy back to when we first used her!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on July 22, 2023
    T
    Verified Purchase
    Turtle Block
    Houston, US
    ★★★★★ 4
    Don't be cheap like me - buy these and save yourself the hassle!
    Style: 19 Pack
    I made the mistake of going with another, slightly cheaper set of replacement parts for our Eufy RoboVac 11S. I did not heed the cautionary tales which lead me having to find replacement parts for the replacement parts. This brand fits our vacuum perfectly - the corner brushes don't pop off, the filter is the right size and the roller brush gets sufficiently tangled with cat hair so clearly also a good fit. My only concern (and why I only gave four stars) is - surprise! - the corner brushes. Do they stay on? YES! In fact, they is so secure, I had difficulty swapping one out. Here's the peculiarity of the brand - the "whiskers" on the spinner fell out. I found them all over the floor, on different surface types and under various conditions; they were not getting caught on any one thing. Not all at once, but over two or three uses, one of the corner brushes had become devoid of almost two entire spokes! Ironically, the little guy can't seem to pick up his own mess but I digress. Without the whiskers to grasp, removing the part was difficult. I ended up using a small flathead screwdriver for leverage to pop it off. While the other corner brush appeared to have shed some whiskers as well, it was not in need of replacement. Despite the shedding, this will be my first go-to for replacement parts next go round.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 24, 2022
    A
    Verified Purchase
    Afework
    Birmingham, US
    ★★★★★ 5
    Nothing.
    Style: 19 Pack
    It’s as shown & working properly for now.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 1, 2026
    M
    Verified Purchase
    MMK
    New York, US
    ★★★★★ 5
    Good resource.
    Style: 19 Pack
    Tried unsuccessfully to get parts from eufy but they were out of stock Pleased to get what I needed right away here.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 27, 2025

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