Holley Accelerator Pump Nozzle Size Chart

This is why pumping the pedal on a carbureted vehicle aids in starting the. 2" (#30 size), and the main jet/nozzle (emulsion tube) will still bottom out against the throttle bore, and of course, a 1. All of these pieces are used to tune the basic Holley carburetor. 040in Tube Type Accelerator Pump Discharge Nozzle. For example, a pump nozzle stamped "35" has a 0. BG, or Barry Grant, also makes parts for Holleys, and offers them at a fraction of the Holley price. Remove power valve assembly. I have played with the accelerator pump to no avail and both have the 25 nozzles and low lift white 218 cam. Tuning is simple by controlling the amount of excess fuel bypass back to the fuel supply. Usually, a faulty accelerator pump will result in a momentary lean condition, which can result in rough or sluggish acceleration, and even misfires. Accelerator Pump Discharge Nozzle. 035-inch orifice. My car's a bone stock '72 dart, 318 auto. Too much fuel from an overzealous tuning approach can be just as detrimental to good. 05-07-11 07:32 PM - Post# 2087289 I'm playing around with tuning my Holley Street Avenger carb and need to get some different size accelerator nozzles (squirters). 040in Tube Type Accelerator Pump Discharge Nozzle. A good selection of accelerator pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. YUK!!!! This means if you park your Motorcycle, ATV, Jet Ski, Go Kart, ETC. Ball – Pump Discharge Check 36. Accelerator Pump Discharge Nozzle. I have conflicting ideas on accelerator squirter nozzles for the holley 670 on it. Pump shooters or nozzles are available from sizes 25 through to 52. 5" PVCR 33 Main Jet 65 primary (waiting for a 66) secondary 70 Squirter Nozzle 28 Pink Cam, hole 1 Vacuum in Drive 11"ish Idle Speed 840 Idle AFR 14:1 (idles nice and smooth). , Straight, Pair. Hole Size; Tube Type; Incl. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro-Stock champion for four decades. There can be much more involved such as setting the accelerator pump arm clearance or moving your cam setting. By keeping a good selection on hand, you can effectively adjust the rate of fuel delivered to your engine by switching back and forth between nozzle sizes. The pump squirts additional fuel into the throttle bores when the throttle opens to compensate for increased airflow. I could use feedback on what secondary opening rate works best for our cars; 1:1, 40% primary open, 50% open or 60% open primaries. 4) Economizer jet too small or partly blocked. 4412 Stock appearing kit--for 2-barrel 350 and 500 carbs--includes us converting your metering block (send us your stock block to be converted**), 2 jets, 1 power valve, 1 high-flow needle & seat, 1 accel nozzle, and 1 50cc GFLT pump diaphragm. Idle Air Bleed Size: 51 Intermediate Air Bleed: 61 Material: Aluminum/Zinc Model: 4500 Needle and Seat Size: 120;120 Primary Main Jet: 100 Primary Power Valve: 6. Dellorto dhla emulsion tube chart. Holley accelerator pump nozzles are all stamped with a number that coincides with the diameter of the hole size. The accelerator pump system consists of three main components: the pump diaphragm, the pump cam, and the pump nozzle. 032 4776 (-1 -2) 600cfm Primary Main Jets 66. 10% OFF $75. BG is a great source for items such as the accelerator pump cam kits. Holley's HP In-Line Billet Fuel Pumps are designed to be the perfect companion to your carbureted or fuel injected race car, off-road truck or any engine needing fuel! The HP fuel pumps feature OEM gerotor technology which yields lightweight, quiet operation and 100,000+ mile durability in a cost effective, attractive package. Jets for the Holley carb are readily available from Holley at most speed shops. All Holley’s lack the following features, standard on a Rochester Quadra jet: Metering rods for power enrichment, air door controlled secondary. The nozzle hole size determines the rate of fuel discharge. PART# 121-31. Sizes are stamped on each nozzle. Holley 2-Barrel Six-Pack Carburetors - Mopar COVER - accelerator pump (30 cc), w/beveled screw holes for tapered clutch head screw set #B3772 NOZZLE - pump. 040-inch in diameter. Most street carburetors will operate with nozzle sizes ranging from 0. Shut off the engine. Because of its universal calibration, this carburetor is a square-bore type and should not be used with adapters on spread-bore type intake manifolds. i have moved the throttle accelerator pump lever rod to the closet one to. Nice small venturi and just with a minor change of the accelerator pump nozzle and shifting the cam to the other slot - it runs wonderfully. One size does not fit all individual needs. Includes two 12 pump discharge nozzle sizes ranging from 0. a traditional V-bowl, they eliminate fuel starvation and provide consistent air/fuel ratios. The nozzle hole size determines the rate of fuel discharge. For example List 4053, or List 4777-4. Buy AED/Advanced Engine Design 5431 Accelerator Pump Discharge Nozzle Service Parts; Compatibility - Holley Carburetors, Includes Gaskets - Yes, Nozzle Sizes (IN) - 0. Running at steady speed, the car runs at 11:1 and will drop the main jets a few sizes only after I fix this stumble. Holley® has been the undisputed leader in fuel systems for over 100 years. Any leakage past the gaskets will result in a less-than-normal discharge at the nozzles. Screws Fuel Filters Misc Parts. It would help me to know the original jet sizes, accelerator pump nozzle sizes and power valve ratings. Although rarely necessary, the bigger pump can be installed on a 4150-style carb by using Holley’s conversion kit (PN 20-11). 56 (1) Universal Fit Video Available Compare Quick View Part # 425121237 Holley 121-237 Accelerator Pump Discharge Nozzle 0. Spritzer nozzle is prone to clogging at diameter of. Check this out! Actual PROPER holley accel/pump cam chart Welcome, guest. Here is a Holley accelerator pump video [] Shooter assemblBe sure the two gaskets are in place and not split. 036-inch accelerator-pump nozzle to a 0. It's always better to achieve the desired air / fuel ratio in-circuit to the extent you can. pilot jets jet needles and accelerator pump nozzle for the HSR42 45 48 carburetors. Size 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 Adj. The #1 & #2 refers to the holes in the throttle lever for the screw that attaches the cams, positions 1 and 2. [] Primary or secondarOn a double pumper, the side of the carb (primary or secondary) having the problem can sometimes be found by disconnecting the secondary throttle linkage to allow the carb to. Holley accelerator pump nozzles are all stamped with a number that coincides with the diameter of the hole size. These analog-style gauges are designed specifically for use with Holley EFI systems. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only Holley. Includes two 12 pump discharge nozzle sizes ranging from 0. Technically all the 34 PICT's then have 3 power fuel nozzles. Buy 1984 Mercedes-Benz 300D Auto Parts in Canada. Holley jets range in size from 40 to 99, with the stock jet size differing based on the carburetor model and engine application. Holley 121-147 - Holley Accelerator Pump Discharge Nozzles Compare Accelerator Pump Discharge Nozzles, Squirters,. 10% OFF $75. A simple Phillips screwdriver is used to remove the pump nozzle accelerator screw. Dual 50cc accelerator pumps; Four corner idle; A2013 Labor; Calibrated for alcohol _____ The Holley® Dominator is superior to all other large sized carburetors. Created on 2011-03-04 by IPD Staff. The pump squirts additional fuel into the throttle bores when the throttle opens to compensate for increased airflow. I will add that I tend to rely less on accelerator pump shot than many, or most carb builders / tuners. Add 1 pilot Mikuni Pilot Jets VM TM TMX. The other way you may find the number is the word List followed by 4 or 5 digits. The size and type of a Stromberg are given by numbers and letters. 5 Primary Sq. For racing classes that leave the line at high rpm (not idle) it may make sense to have a gap in the linkage at idle, so that the full pump shot is available from launch RPM (throttle position)-up. 035" Hole Size Tube Type (Including 2 Gaskets) (HO121-35) - Holley - Accelerator Pump Discharge Nozzle; 0. i have a question about a 1813 thunder series avs carb i purchased in 2007. Kit Kit Needle Jet or Plate Block Block Power Valve Nozzle & Seat Size 0-1848-1 4160 465 37-119 37-933 6-506 122-57 N/S N/S 34R9716-3 125-85. Keihin pd carb rebuild kit. Buy 1984 Mercedes-Benz 300D Auto Parts in Canada. FUEL NOZZLE BAR. Compatibility - Holley 2 and 4 barrel performance carburetors; Includes pump discharge nozzle - Yes; Pump discharge nozzle size range - 0. Vintage tecumseh carburetor. Idle Air Bleed Size: 51 Intermediate Air Bleed: 61 Material: Aluminum/Zinc Model: 4500 Needle and Seat Size: 120;120 Primary Main Jet: 100 Primary Power Valve: 6. I have refreshed my own experience with information from the following web sites. All of these pieces are used to tune the basic Holley carburetor. 2) Clean out the nozzle tip. Brand New Holley 750 CFM Classic Carburetor with Electric Choke, Vacuum Secondaries, Shiny Finish, Model # 4160 (Part #0-80508S). Remove accelerator pump link (pry upper end of link out), remove pump plunger and rod assembly. Holley jets range in size from 40 to 99, with the stock jet size differing based on the carburetor model and engine application. Choke horn may not be removed. You really need the holley chart to make a decision whether to change cam position or cam color to get more squirt quicker. edit: I realize I better expand on that a bit. My car's a bone stock '72 dart, 318 auto. If I drop the throttle to the floor after 2500 rpm, the car seems to be fine. Inside the accelerator pump housing, the pump diaphragm has a spring under it to push the diaphragm back out when the pump lever is released. 5) Choke pull-off open too far. • Accelerator pump. Hi, so I have the rest of my 670 Street Avenger carb on my 360 tuned in now pretty good. 4) Take the throttle to WOT and measure for at LEAST 0. Holley manufactures each carburetor with a set of jets that. 015 minimum clearance at WOT, just as you've said. Holley 50cc Pump Diaphragm Five Pack Avenger, Barry Grant, Demon, AED,QFT Carb. The hole size determines the rate of discharge. This is to set the starting point of the accelerator pump. You really need the holley chart to make a decision whether to change cam position or cam color to get more squirt quicker. In my opinion, the type of discharge nozzle is way way down on the list of priorities and importance when tuning, but I'd be real curious what others. For example R-4776, or R-4776-1. Warranty: Holley Performance Products warrants its new performance products to be free from defects in material and workmanship. Remove primary and secondary main metering jet, noting their size so they may be installed properly. Normal installations involve a fuel pump about 25- to 50-percent larger than the engine demand. The pump shooters have a number stamped on their casting, which designates the shooter size in thousandths of an inch, i. pilot jets jet needles and accelerator pump nozzle for the HSR42 45 48 carburetors. A good selection of accelerator pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. Hole Size Straight Type Includes 2 Gaskets. 5 PV to a 6. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro-Stock. 040-inch or larger accelerator-pump nozzle is installed, the "hollow" pump-nozzle screw (PN 26-12) should. Its purpose is to inject a certain amount of fuel down the throttle bores when the throttle is opened. A larger hole will "shoot" the fuel at a faster rate with less pressure than a smaller hole. Sizes are stamped on each nozzle. 11) Remove cover plate and remove hot idle compensator and gasket. Screw – Pump Discharge Nozzle 32. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro-Stock champion for four decades. For instance, the various charts and parts list method of cataloging in the Carburetor Section are explained on Page 1 of. An engine that is idling or running at low load can tolerate a leaner mixture without damaging anything. 040-inch in diameter. BG is a great source for items such as the accelerator pump cam kits. If you were to actually to a CFM calculation on an 850 DP or even a Dominator, the actual CFM is quite a lot more than the advertized CFM if the system is properly built. With the vacuum-secondaries, diaphragm springs are used to control opening speeds. Place the accelerator pump cover and lever assembly in place, start all four 8-32 screws by hand, and then torque all four screws to 5 in-lbs. By matching the right carburetor, the right squirter, and the appropriate nozzle sizes, Edelbrock has been able to replicate the smooth, stumble-free delivery of EFI with the AVS2 carburetor. I have conflicting ideas on accelerator squirter nozzles for the holley 670 on it. This allows maximum fuel to flow through the nozzle. com/vct/Holley/510/1010267 -----. All E85 kits come with parts,gaskets and instructions. a traditional V-bowl, they eliminate fuel starvation and provide consistent air/fuel ratios. The Holley spreadbore lacks the following features, which are standard on its squarebores: Externally adjustable floats, standard accelerator pump nozzles, standard gaskets (exceptions: Holley 6910). Holley offers a broad range of sizes of accelerator pump nozzles. You last visited: Yesterday at 08:39 PM User CP FAQ Members List Calendar New Posts Search Quick Links Log Out Thread Tools Search this Thread Rate Thread Display Modes #1 04-21-2008, 05:14 AM Praxis Registered User Join Date: Apr 2008 Posts: 27. Funny how some things are meant to be. The accelerator pump is supposed to provide additional fuel needed during acceleration. 037 Inch $9. -850cfm Pro-Form with #76 mains &. Contact Informaton. It is very easy to test the function of the accelerator pump. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only Holley. Holley race carburetors incorporate an accelerator pump on both the pri­mary and the secondary float bowls. This will increase th e stroke length of the plunger and result in more pump delivery. • Straight-type accelerator pump discharge nozzles • Available in a variety of hole sizes • Nozzile hole size determines rate of fuel discharge • Larger hole with shoot fuel at a faster rate & with less pressure than a smaller hole • Nozzle sizes. 17" (#28 size) or 1. Most the time comes from running out of gas from the accelerator pump. BG is a great source for items such as the accelerator pump cam kits. The other way you may find the number is the word List followed by 4 or 5 digits. Holley accelerator-pump nozzles are stamped with a number that indicates the drilled pump hole size. 29 shipping. Find Pump in Canada | Visit Kijiji Classifieds to buy, sell, or trade almost anything! New and used items, cars, real estate, jobs, services, vacation rentals and more virtually anywhere in Oshawa / Durham Region. basic metering or have not responded to changes in the basic metering, move the pump drive link (#17 on the diagram) to one of the holes closer to the carburetor body. Throttle Position 41R643 Yellow 41R336 Brown. Includes two nozzles. The accelerator circuit can be modified from what the engineers though would work by changing: 1. There is none available so the air fuel ratio in this operating range must be set conducive to clean and efficient engine operation and enrich as load goes up. The size and type of a Stromberg are given by numbers and letters. Holley accelerator pump nozzles are all stamped with a number that coincides with the diameter of the hole size. For example, a pump nozzle stamped "35" has a 0. I went from 14. Base to Main body Screw. More likely accelerator pump arm and cam not adjusted correctly, power valve too high, idle transition circuit not working correctly because the butterflys are open too far on the primaries, just for 3 possibilities if it's a Vacuum. Now has an AC Delco pump, running at 5-7 psi. pdf), Text File (. Screws Fuel Filters Misc Parts. I'm still struggling with this Holley TA 470. 149” is aftermarket only]), power piston spring rates varied (10 different OEM springs, others available through the aftermarket), obviously jets (at least 13. Part II will cover the power valve, vacuum secondary, the accelerator pump and flooding problems. Accelerator Pump Discharge Nozzle 0. Usually, a faulty accelerator pump will result in a momentary lean condition, which can result in rough or sluggish acceleration, and even misfires. All Holley’s lack the following features, standard on a Rochester Quadra jet: Metering rods for power enrichment, air door controlled secondary. The smaller diameter nozzles lengthen the pump shot duration and are used with heavier vehicles or with vehicles equipped with lower numerical rear axle ratios. Be the first to write a review. Accelerator Pump Discharge Nozzle Gaskets 10 Per Package -HLY1008-844 Holley Accelerator Pump Discharge Nozzle -HLY1008-844 MSRP: Was:. 600 0 10 20 30 40 50 60 70 80) Throttle Rotation (Degrees) Pump Cam Lift vs. I have read that smaller nozzles will be quicker on getting fuel, but upon other readings on the holley site they seem to recommend stepping up in size. Warranty: Holley Performance Products warrants its new performance products to be free from defects in material and workmanship. 5 PV to a 6. Ride around a while with a clean stop and then read the plugs. For Holley, QuickFuel, Proform, and Demon carburetors. If I drop the throttle to the floor after 2500 rpm, the car seems to be fine. ACCELERATOR PUMP The accelerator pump system consists of three main components: the pump diaphragm, the pump cam and the pump nozzle. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only Holley. AED recommends tube-type squirter's when additional top-end fuel enrichment is required. Remove power valve assembly. Accelerator Pump Discharge Nozzle. 052 Five 50cc and 30cc GFLT pump diaphragms and two 10 accelerator pumps included Tunes and calibrates accelerator pump circuits for street, drag, circle track cars, or tow vehicles Contained in plastic case with parts guide › See more product details. Usually, a faulty accelerator pump will result in a momentary lean condition, which can result in rough or sluggish acceleration, and even misfires. This is the carburetor system that is most responsible for having good, crisp, off-idle throttle response. thats why i purchased this model carb and size. The hole size determines the rate of discharge. Weight – Pump Discharge 35. jpg File size: 14. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro–Stock champion for four decades. txt) or read online for free. The cams have different shaped ramps that the arm from the accelerator pump rides on. For example List 4053, or List 4777-4. 5, didn't seem. Throttle Shafts Floats Accelerator Pumps. pilot jets jet needles and accelerator pump nozzle for the HSR42 45 48 carburetors. Idle holes may be drilled in butterflies, air vents enlarged and metering plates are open. I like the Holley 3310 750cfm for street use but I'm a Holley kinda guy. Hole Size; Tube Type; Incl. What is really needed is a load sensing fuel control device. For example, the number "65" indicates that the valve will open when engine vacuum drops to 6. 5 PV to a 6. 040-inch or larger accelerator-pump nozzle is installed, the "hollow" pump-nozzle screw (PN 26-12) should. 040” & larger include a hollow nozzle screw • Sold as 2-Pack. Is the choke opening properly? If it is a Holley, is the power valve blown? If you are certain the power valve is OK, is it opening at a level that is not introducing fuel before it is needed? Are idle mixture screws set properly? Are the main jets correct for the conditions? Is the accelerator pump nozzle properly sized and is the pump. ill tell you it makes great power. Hole Size Straight Type Includes 2 Gaskets. Actual PROPER holley accel/pump cam chart Welcome, guest. Holley offers a broad range of sizes of accelerator pump nozzles. Because of its universal calibration, this carburetor is a square-bore type and should not be used with adapters on spread-bore type intake manifolds. Orange71 Veteran Member Lifetime Gold. Shop for more Carburetors & Parts available online at Walmart. Accelerator pump circuit is unimproved. By matching the right carburetor, the right squirter, and the appropriate nozzle sizes, Edelbrock has been able to replicate the smooth, stumble-free delivery of EFI with the AVS2 carburetor. Size 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 Adj. High altitude jetting chart. Float Assembly 12. Accelerator pump cams come in various sizes and are color coded and number coded by Holley. 025” discharge orifice. The nozzle hole size determines the rate of fuel discharge. In the days of `57 ford 312's and `60 Dodge 383's the purpose was for a summer and winter setting of the accelerator pump. If I coax it past this spot, at higher RPM’s it seems fine. Hole Size Straight Type Includes 2 Gaskets. Remove the air cleaner. Although rarely necessary, the bigger pump can be installed on a 4150-style carb by using Holley's conversion kit (PN 20-11). 4pcs Bumper Fender Quick Release Fastener Replacement Rubber O-Ring Band Kit Top,Quick Release Fastener Replacement Rubber O-Ring Band Kit Top 4pcs Bumper Fender, 6" 80mm 105mm, 4" 55mm 85mm, 3" 55mm 68mm, 2" 50mm 50mm, Size:/(see the details in the pictures size chart ),(1) Made of rubber, 1 x Two Jaw Gear Pullers, 8" 80mm 130mm. You may want to go to them. Diaphragm / Rivet Size (mm) / AP Squirt Duration (sec) 5JG-14940-76-00 / 7. PART# 121-31. the cruising circuit couldnt supply enough fuel. A four barrel Holley, for instance, has four internal parts that can be serviced: 4 jets, one or two power valves, 2 or 4 idle screws and two floats with needle valves. In a four barrel Holley the primary are open and the secondary barrels blow open only when slightly more power is necessary. Does your vehicle sputter at the starting line then take off? Does the engine seem to stumble at the top of the highway on-ramp? Norm discusses how to proper. Hole Size; Tube Type; Incl. The other way you may find the number is the word List followed by 4 or 5 digits. 0 out of 5 stars 1 $28. The accelerator pump circuit is activated (by lever #25 dropping) every time the accelerator pedal is. 028 to further improve the throttle response. Or just remove the carburetor accelerator pump links so the pumps cannot open the power valves. We also replaced the large 0. Retainer – Float 11. 4776 600cfm Primary main jets 69 Secondary main jets 71 Power Valve 6. To go any larger, I need a kit with a 50 cc accelerator pump and hollow screw with a 37 or larger nozzle. When necessary, instructions are shown at the beginning of the affected group. Otherwise runs great. ) is to fully load the engine on a long straightaway or hill. Holley accelerator pump nozzles are all stamped with a number that coincides with the diameter of the hole size. But when I push the accelerator to increase the RPM’s avove 850, it wants to die. Gaskets – Pump Discharge Nozzle 33. 99 Regular price Sale price $19. Pump Nozzle Repair Kits Verticle Mill Booster Contacts Help Center Here is a listing of the most common items in a BLP or Holley race carburetor application. BTW, with the MSD, it starts just fine without the choke and will idle down to 400 RPM. I plumbed in a vacuum, and fuel gauge into the cab where I could watch it. Holley makes a pump cam kit, with a variety of color-coded cams for different pump shot curves and amounts. Six Pack Accelerator Pump Nozzle Change June 29, 2014 / challenyee It is not recommended to change the accelerator pump nozzle on a choked carb without removing it from the car, but if you are very very careful, you can see what I did. Holley race carburetors incorporate an accelerator pump on both the pri­mary and the secondary float bowls. The nozzle hole size determines the rate of fuel discharge. A stream of fuel comes out the two accelerator pump jet nozzles when I depress the throttle, so I think the accelerator pump is O. If you look on the top of the pump you'll see a cover with 2 bolts that's about the same size as a Holley carb's float bowl. All Holley’s lack the following features, standard on a Rochester Quadra jet: Metering rods for power enrichment, air door controlled secondary. 037 Inch $9. DCOE Accelerator Pump Jets and Washer. Holley 50cc Pump Diaphragm Five Pack Avenger, Barry Grant, Demon, AED,QFT Carb. so 670 should be pleanty for below 4k operation. basic metering or have not responded to changes in the basic metering, move the pump drive link (#17 on the diagram) to one of the holes closer to the carburetor body. 015 with a feeler gauge to make sure you are not bottoming out the diaphragm. Holley 121-5 Accelerator Pump Nozzle Check Needle $11. Accelerator Pump Rod Installed in Wrong Hole in Pump Arm Results in: Off-idle stumble or hesitation. Includes two nozzles. Be before messing with the cam you might try to go up a size on the accelerator nozzle. I had the same prob on my 390 w/Holley. Holley Accelerator Pump Nozzles in-stock with same-day shipping. Tech Tip #3. 025” discharge orifice. Holley Carb Accelerator Pump Squirters Nozzles Cams Adjustment Tutorial Overview http://www. Edelbrock AFB Accelerator pump discharge nozzles #1. Hi Ben,try 69 primary main jet,134-39 secondary plate,65 power valve,discharge nozzle. Place the accelerator pump cover and lever assembly in place, start all four 8-32 screws by hand, and then torque all four screws to 5 in-lbs. 5) Choke pull-off open too far. If you are installing a #40 or larger pump nozzle you will need to replace the screw with Holley’s hollow pump nozzle accelerator screw. Comments: There are two holes in the accelerator pump lever arm for the lever arm rod to engage into: Inner and Outer. pump cams, power valves, new fuel line from the rear all the way to the front, new floats, had the card rebuilt by a pro speed shop, & nothing helped it. 1970 - 1981 Camaro Accelerator Firewall Gas Pedal and Throttle Cable Rod Assembly, Used GM PART NUMBER: ACL-5G. 040” is required, a “hollow” shooter screw is advised. mikuni jet size chart 27 sold. If you look on the top of the pump you'll see a cover with 2 bolts that's about the same size as a Holley carb's float bowl. It is very easy to test the function of the accelerator pump. If someone talks like they are not, avoid him. Accelerator Pump Discharge Nozzle 0. Remove the air cleaner. 025 Secondary Sq. 600 0 10 20 30 40 50 60 70 80) Throttle Rotation (Degrees) Pump Cam Lift vs. Holley accelerator pump nozzles are all stamped with a number that coincides with the diameter of the hole size. Check this out! Actual PROPER holley accel/pump cam chart Welcome, guest. Holley 4150 Carb Rebuild Kit Double Pumper 750 650 600. 0 out of 5 stars 1 $28. 0935" needle and seat 11/32" float height (+/- 1/4" float drop) middle accelerator pump link hole 0. Ride around a while with a clean stop and then read the plugs. Part # 121-40. 040-inch in diameter. I will add that I tend to rely less on accelerator pump shot than many, or most carb builders / tuners. If I coax it past this spot, at higher RPM’s it seems fine. I have a chart (from the Holley carburetors book by dave emanuel) that shows the specs for the various pump cams. I found a Ford 4bbl 60s Mustang intake and installed a Holley 390cfm carb. Obviously, Holley offers original parts at the Holley price. Just makes a rich/lean. 025” discharge orifice. The hole size determines the rate of discharge. If I drop the throttle to the floor after 2500 rpm, the car seems to be fine. pump so it had 1\4 inch of play in it before the arm hit the lever for the pump. Start the engine, and warm to normal operating temperature. Holley manufactures each carburetor with a set of jets that. Hg or below. Be before messing with the cam you might try to go up a size on the accelerator nozzle. The brown is a 50cc pump cam; the chart is for the 30cc pump cams. Alternately, a larger nozzle will flow more. 4) Clean out economizer jet and check the size. Screws Fuel Filters Misc Parts. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. 4pcs Bumper. Electric Choke Vacuum Secondaries-4160. If a double pumper, make the primary acc pump cam work faster. Retainer – Float 11. I set the initial. 340 stroker (426) 10:00. Float Assembly 12. In the days of `57 ford 312’s and `60 Dodge 383’s the purpose was for a summer and winter setting of the accelerator pump. Any leakage past the gaskets will result in a less-than-normal discharge at the nozzles. Too much fuel from an overzealous tuning approach can be just as detrimental to good. Get deals on automotive parts, truck parts and more. Accelerator pump cams come in various sizes and are color coded and number coded by Holley. Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of. Retainer – Float 11. A wide selection of discharge nozzle sizes is invaluable to properly tune an accelerator pump system. If you look on the top of the pump you'll see a cover with 2 bolts that's about the same size as a Holley carb's float bowl. I like the Holley 3310 750cfm for street use but I'm a Holley kinda guy. ca/en/ip/victorias-secret-amber-romance-body-cream/6000198335606 daily 0. For Holley, QuickFuel, Proform, and Demon carburetors. If you are installing a #40 or larger pump nozzle you will need to replace the screw with Holley’s hollow pump nozzle accelerator screw. The pump squirts additional fuel into the throttle bores when the throttle opens to compensate for increased airflow. You are watching the squirts from the accelerator pump. a 1-1/4 inch bore would be coded as a size number 2 (Base number 1 + 1 for the 1/4 inch over 1 inch) a 1-1/2 inch bore would be coded as a size number 3 (Base number 1 + 2 for the two 1/4 inches over 1 inch), and so on up to a size 18 (Base number 1 + 17 for the seventeen 1/4 inch increments over the 1 inch base). Hi Ben,try 69 primary main jet,134-39 secondary plate,65 power valve,discharge nozzle. 07" carburetors can be bored to 1. Hg, "85" indicates 8. Weight – Pump Discharge 35. If you were to actually to a CFM calculation on an 850 DP or even a Dominator, the actual CFM is quite a lot more than the advertized CFM if the system is properly built. E85 metering blocks E85 metering blocks. 5) Choke pull-off open too far. This is the system on your carburetor that is most responsible for having good. Most the time comes from running out of gas from the accelerator pump. Running at steady speed, the car runs at 11:1 and will drop the main jets a few sizes only after I fix this stumble. 5 Primary Pump Nozzle Size: 35 Product Type: Carburetor Secondaries: Mechanical Secondary Main Jet: 100 Secondary Pump Nozzle Size: 35 Supercharged Application: No Throttle Bore: 2. By keeping a good selection on hand, you can effectively adjust the rate of fuel delivered to your engine by switching back and forth between nozzle sizes. Remove accelerator pump link (pry upper end of link out), remove pump plunger and rod assembly. nozzle size holley? Discussion in 'High Performance Modifications My next thought was that the accelerator nozzle needed to be increased so I put in a 37 from a 31. Accelerator pump circuit is unimproved. Keihin pd carb rebuild kit. In addition, the fuel pump should be fed with an adequate supply line to avoid inlet cavitation. If someone talks like they are not, avoid him. The use of Helicoils in this area would likely be a problem due to the two slots in the hole that provide a path for the fuel to get to the acceleratory pump nozzle alongside the screw. You may want to go to them. They are compatible with all Terminator, HP, and Dominator ECU's, allowing them to be installed in a variety of Holley EFI equipped vehicles. Although rarely necessary, the bigger pump can be installed on a 4150-style carb by using Holley’s conversion kit (PN 20-11). There is none available so the air fuel ratio in this operating range must be set conducive to clean and efficient engine operation and enrich as load goes up. 4) Clean out economizer jet and check the size. A larger hole will shoot the fuel at a faster rate, and with less pressure, than a smaller hole. Holley 121-147 - Holley Accelerator Pump Discharge Nozzles Compare Accelerator Pump Discharge Nozzles, Squirters,. Holley Accelerator Pump Discharge Nozzle Gaskets Part #: 1008-844 Line: HLY. All E85 kits come with parts,gaskets and instructions. 037 Inch $9. For racing classes that leave the line at high rpm (not idle) it may make sense to have a gap in the linkage at idle, so that the full pump shot is available from launch RPM (throttle position)-up. For example, a #40 shooter will have a hole size that measures. 10% OFF $75. Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of. Accelerator Pump Discharge Nozzle 0. The key is often I learned to change out the accelerator pump nozzle ‘squirter’ at the top if the carb. Compatibility - Holley 2 and 4 barrel performance carburetors; Includes pump discharge nozzle - Yes; Pump discharge nozzle size range - 0. Buy AED/Advanced Engine Design 5431 Accelerator Pump Discharge Nozzle Service Parts; Compatibility - Holley Carburetors, Includes Gaskets - Yes, Nozzle Sizes (IN) - 0. holleyguide - Free download as PDF File (. Shop for more Carburetors & Parts available online at Walmart. pumps, acc. With 20 percent more fuel capacity vs. The accelerator pump is a piston type, which makes it unique to most of the other Holley carburetors, which use the diaphragm type of pump. Nice small venturi and just with a minor change of the accelerator pump nozzle and shifting the cam to the other slot - it runs wonderfully. 904 Auto with 3500 stall. Then recalibrate your brain to read 3psi =7psi on your electric gauge. 99 Regular price Sale price $19. Should I try a 35 which would be a jump up from the 31 that was in it but not requiring the larger pump? Jun 3, 2009 #4. Shop online and save up to 80% on 1984 Mercedes-Benz 300D Auto Parts in Canada. The MJs control cruise, NOT power, but this will tell you if if more fuel is needed. There can be much more involved such as setting the accelerator pump arm clearance or moving your cam setting. The hole size determines the rate of discharge. Find Holley Accelerator Pump Discharge Nozzles and get Free Shipping on Orders Over $99 at Summit Racing! Holley accelerator pump discharge nozzles are invaluable when it comes time to tune your accelerator pump system. 3 and a 60" of 2. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro-Stock champion for four decades. Find Pump in Canada | Visit Kijiji Classifieds to buy, sell, or trade almost anything! New and used items, cars, real estate, jobs, services, vacation rentals and more virtually anywhere in Oshawa / Durham Region. Whenever a 0. i am pulling about 18 vacuum at idle. basic metering or have not responded to changes in the basic metering, move the pump drive link (#17 on the diagram) to one of the holes closer to the carburetor body. Throttle Position 41R643 Yellow 41R336 Brown. Secondary Pump Nozzle Size:. This is the carburetor system that is most responsible for having good, crisp, off-idle throttle response. 1964-67 Holley Components - 4160 Series (Single Fuel Inlet 585 CFM 275 to 390 HP) 1965-72 Holley Components - 4150 Series (Dual Fuel Inlet 780-855 CFM 375 to 450 HP). The stock accelerator pump on a 4150-style carb has a capacity of 30 cc for ten strokes of the pump. Turn the pump on and look down the carb. (1) The diameter of the accelerator pump (2) The length and articulation of the accelerator pump (3) The mass of the pump discharge valve (4) The diameter of the pump discharge nozzles While other companies found the need for multiple accelerator pumps, Carter simply changed the operating volume of the pump squirt. the issue i am having is i have a 1968 charger with a 383 engine stroked to 500 cu in. A back fire can destroy the power valve unless the carb has"power valve blow-out protection". i have moved the throttle accelerator pump lever rod to the closet one to. Hi, so I have the rest of my 670 Street Avenger carb on my 360 tuned in now pretty good. The LM-1 meter told us the engine was way rich at just off idle, so we first tried leaning out the idle-mixture screws, but it didn’t help. Any leakage past the gaskets will result in a less-than-normal discharge at the nozzles. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro-Stock. You last visited: Yesterday at 08:39 PM User CP FAQ Members List Calendar New Posts Search Quick Links Log Out Good point - a smaller nozzle is only going to flow so fast before the spring starts compressing no matter what cam you have. Pump Nozzle Repair Kits Verticle Mill Booster Contacts Help Center Here is a listing of the most common items in a BLP or Holley race carburetor application. 4412 Stock Block. E85 metering blocks E85 metering blocks. Weight – Pump Discharge 35. 015 minimum clearance at WOT, just as you've said. phone (323) 232-3359 fax (323) 232-3332 holley 4000 64-32 leather pump assembly 90-10 fuel inlet. I found a Ford 4bbl 60s Mustang intake and installed a Holley 390cfm carb. Accelerator pump cams come in various sizes and are color coded and number coded by Holley. Once you have set the rod size up like this, verifying both the idle as shown in Tech Tip #5 and using the disconnected accelerator pump, a road test is in order. A back fire can destroy the power valve unless the carb has"power valve blow-out protection". Unscrew and remove the four retaining screws and lift off the assembly. Holley 121-5 Accelerator Pump Nozzle Check Needle $11. I like the Holley 3310 750cfm for street use but I'm a Holley kinda guy. Secondary Pump Nozzle Size:. pumps, acc. The LM-1 meter told us the engine was way rich at just off idle, so we first tried leaning out the idle-mixture screws, but it didn’t help. But if you were to measure the velocity pressure, it would be off the chart (The Holley on a jet). Hole Size Tube Type Includes 4 Gaskets. 040in Tube Type Accelerator Pump Discharge Nozzle. The 0-9776 450 CFM mechanical secondary carburetor is designed as a universal performance carburetor for use on tunnel ram applications. two fast idle linkage positions are available. 1964-67 Holley Components - 4160 Series (Single Fuel Inlet 585 CFM 275 to 390 HP) 1965-72 Holley Components - 4150 Series (Dual Fuel Inlet 780-855 CFM 375 to 450 HP). I currently have: PV 5. It is pretty much pump speed, barrel valve/throttle plate position and nozzle jet size. Holley 121-147 - Holley Accelerator Pump Discharge Nozzles Compare Accelerator Pump Discharge Nozzles, Squirters,. Holley accelerator-pump nozzles are stamped with a number that indicates the drilled pump hole size. 1968-2013 Full Size Vans cams and nozzlesmaybe it's in the accelerator pump itself. The team has shared all the finest moments in the numerous accolades for its people, its products, and its approach. Hg, "85" indicates 8. I had the same prob on my 390 w/Holley. Gasket – Fuel Bowl 14. IIRC the Q-jet flows like 625 CFM or in that ballpark, so the 67 holley uni is not that much bigger, I purposely aquired the smaller holley for this reason. a traditional V-bowl, they eliminate fuel starvation and provide consistent air/fuel ratios. Once you know the functions of the idle circuit, power valve transition, accelerator pump operation and main jet metering, the Holley mysteries dissolve… Let me know how this turns out, Randell. A larger hole will shoot the fuel at a faster rate, and with less pressure, than a smaller hole. Unscrew and remove the four retaining screws and lift off the assembly. This is the carburetor system that is most responsible for having good, crisp, off-idle throttle response. holleyguide - Free download as PDF File (. Holley Carb Accelerator Pump Squirters Nozzles Cams Adjustment Tutorial Overview http://www. Holley's HP In-Line Billet Fuel Pumps are designed to be the perfect companion to your carbureted or fuel injected race car, off-road truck or any engine needing fuel! The HP fuel pumps feature OEM gerotor technology which yields lightweight, quiet operation and 100,000+ mile durability in a cost effective, attractive package. Doesn't the accelerator pump nozzle also double as another power fuel "jet". i have a question about a 1813 thunder series avs carb i purchased in 2007. It is also not advisable to calculate how rich or lean a needle jet is using exclusively the nozzle inside diameter to needle outside diameter discharge area. basic metering or have not responded to changes in the basic metering, move the pump drive link (#17 on the diagram) to one of the holes closer to the carburetor body. Accelerator Pump Discharge Nozzle 0. Hole Size Tube Type Includes 4 Gaskets. The #1 & #2 refers to the holes in the throttle lever for the screw that attaches the cams, positions 1 and 2. Most the time comes from running out of gas from the accelerator pump. Holley Accelerator Pump Nozzles in-stock with same-day shipping. I like the Holley 3310 750cfm for street use but I'm a Holley kinda guy. It may have one accelerator pump and nozzle with accompanying check needle (Vacuum sec) or two (double pumper), that is it. Technically all the 34 PICT's then have 3 power fuel nozzles. pdf), Text File (. Once the pump shot is depleted, the accelerator must be lifted to refill the pump. Part # 121-40. 70cc jet size 70cc jet size. Secondary Pump Nozzle Size:. 29 shipping. Pump Discharge Nozzles- 2 of each size: 25,28,31,32,35,37,40,42,45,47,50,52 Pump Discharge Needle Valve: QTY of 6 Pump Check Valve: QTY of 6 30cc Pump Diaphragm- QTY of 6 50cc Pump Diaphragm- QTY of 6 Pump Discharge Nozzle Screw- QTY of 4 Pump Cam Lock Screw- QTY of 6 Pump Discharge Nozzle Gasket-QTY of 40 Pump Cam Assortment- 2 of Each Cam. 040” is required, a “hollow” shooter screw is advised. This will increase th e stroke length of the plunger and result in more pump delivery. com/vct/Holley/510/1010267 -----. 0935" needle and seat 11/32" float height (+/- 1/4" float drop) middle accelerator pump link hole 0. For racing classes that leave the line at high rpm (not idle) it may make sense to have a gap in the linkage at idle, so that the full pump shot is available from launch RPM (throttle position)-up. Buy AED/Advanced Engine Design 5431 Accelerator Pump Discharge Nozzle Service Parts; Compatibility - Holley Carburetors, Includes Gaskets - Yes, Nozzle Sizes (IN) - 0. DCOE Accelerator Pump Jets and Washer. 1964-67 Holley Components - 4160 Series (Single Fuel Inlet 585 CFM 275 to 390 HP) 1965-72 Holley Components - 4150 Series (Dual Fuel Inlet 780-855 CFM 375 to 450 HP). Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of. Spring – Float 13. 9 https://www. Solex 34 PICT Carb Spacer, 3/8" Thick (6mm), Fits 34-3 and 34-4 Carburetors, 00-9705-0 is used to move the carburetor up for the accelerator pump linkage to clear the larger diameter alternator when doing an alternator conversion with the generator carb. However, the carb is not cheap. Base to Main body Screw. 99 Regular price ACCELERATOR PUMP KIT. but the stock 2bbl didnt work out to well. For example, the number. I have read that smaller nozzles will be quicker on getting fuel, but upon other readings on the holley site they seem to recommend stepping up in size. A good selection of pump discharge nozzle sizes is indispensable to the proper tuning of the accelerator pump system. The Holley spreadbore lacks the following features, which are standard on its squarebores: Externally adjustable floats, standard accelerator pump nozzles, standard gaskets (exceptions: Holley 6910). 8]If you have a bog or sag in power 1/2 a second after you hit the throttle [don`t open secondaries] you don`t have enough volume of fuel being delivered, this is controlled by the pump cams on the throttle shaft, Holley offers 7+ cams with 2 positions each so 14+ settings, again you want to use the smallest cam without causing a bog so not. , 500-850RPM O. Accelerator pump cams come in various sizes and are color coded and number coded by Holley. 4776 600cfm Primary main jets 69 Secondary main jets 71 Power Valve 6. ) The volume of the pump from the 3 cc to a 5 cc pump (they are listed as 30 cc and 50 cc aka REO pumps respectivley because Holley for some reason takes everything their accelerator circuit does and multiplies it by a factor of ten). Otherwise runs great. The accelerator pump is a piston type, which makes it unique to most of the other Holley carburetors, which use the diaphragm type of pump. Hole Size Straight Type Includes 2 Gaskets. Select a store to see pricing & availability Compare. For example, the number "65" indicates that the valve will open when engine vacuum drops to 6. Pump nozzle sizes are available from 0. Holley 2-Barrel Six-Pack Carburetors - Mopar COVER - accelerator pump (30 cc), w/beveled screw holes for tapered clutch head screw set #B3772 NOZZLE - pump. The cams have different shaped ramps that the arm from the accelerator pump rides on. Vintage Speed - $19. If someone talks like they are not, avoid him. Pump nozzle sizes are available from 0. Dual 50cc accelerator pumps; Four corner idle; A2013 Labor; Calibrated for alcohol _____ The Holley® Dominator is superior to all other large sized carburetors. You last visited: Yesterday at 08:39 PM User CP FAQ Members List Calendar New Posts Search Quick Links Log Out Good point - a smaller nozzle is only going to flow so fast before the spring starts compressing no matter what cam you have. One works perfect and the other has the off idle stumble like yours. Hole Size; Tube Type; Incl. For example, the number "65" indicates that the valve will open when engine vacuum drops to 6. Because of its universal calibration, this carburetor is a square-bore type and should not be used with adapters on spread-bore type intake manifolds. Diaphragm / Rivet Size (mm) / AP Squirt Duration (sec) 5JG-14940-76-00 / 7. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. 2) Accelerator pump nozzle has dirt in it. Sizes are stamped on each nozzle. Nevertheless I felt it time to try a Weber, the only practical alternative that offers the essential facility of an accelerator pump and corresponding performance. I will add that I tend to rely less on accelerator pump shot than many, or most carb builders / tuners. Fits Holley Model 4165 and 4175;. that cam is roughly the same as what im running now. Holley makes a pump cam kit, with a variety of color-coded cams for different pump shot curves and amounts. i am pulling about 18 vacuum at idle. 5" PVCR 33 Main Jet 65 primary (waiting for a 66) secondary 70 Squirter Nozzle 28 Pink Cam, hole 1 Vacuum in Drive 11"ish Idle Speed 840 Idle AFR 14:1 (idles nice and smooth). Holley 121-28 Accelerator Pump Discharge Nozzle - Pack of 2. ACCELERATOR PUMP The accelerator pump system consists of three main components: the pump diaphragm, the pump cam and the pump nozzle. The choke valve is located in the air horn above the venturi. 77 / DPH #30 (YZ/WR 250F standard) Accelerator Pump Timing Adjustment The other part that is often ignored is the adjustment screw that comes on the linkage stock. 025” discharge orifice. 1973 - 1979 F-100 & Larger F-Series Trucks - Holley 4160 on 351M - help please!!! - I could really use some help here - I've been scouring the web and tinkering with the carb for over a week: New Holley 1850S (a 600 cfm 4160) on my 351M. It's always better to achieve the desired air / fuel ratio in-circuit to the extent you can. Secondary Pump Nozzle Size 28 With regard to the mechanical secondaries, the linkage has adjustments for the opening rate. It may have one accelerator pump and nozzle with accompanying check needle (Vacuum sec) or two (double pumper), that is it. 5, didn't seem. I did need to retune it a bit. Solex 34 PICT Carb Spacer, 3/8" Thick (6mm), Fits 34-3 and 34-4 Carburetors, 00-9705-0 is used to move the carburetor up for the accelerator pump linkage to clear the larger diameter alternator when doing an alternator conversion with the generator carb. The cams have different shaped ramps that the arm from the accelerator pump rides on. 1 day turnaround once we receive your block. If the gauges dont jive, set the fuel presure with the good mech. Holley metering block gasket differences. Pump shooters or nozzles are available from sizes 25 through to 52. To go any larger, I need a kit with a 50 cc accelerator pump and hollow screw with a 37 or larger nozzle. Holley carburetors have powered every NASCAR® Cup team and nearly every NHRA® Pro-Stock champion for four decades. 0 out of 5 stars 1. hi nice tech tip ,. Most the time comes from running out of gas from the accelerator pump. A little info. Holley Carb Accelerator Pump Squirters Nozzles Cams Adjustment Tutorial Overview http://www. Power Valve Jets Discharge Nozzles. Wide open throttle (w. If I coax it past this spot, at higher RPM’s it seems fine. Speedmaster has become a leader in its field, built on a long term consistency of being a specialist in aftermarket automotive components. center position accelerator pump 0. All of these pieces are used to tune the basic Holley carburetor. Description, size, etc. Formats peculiar to a particular area of the catalog are generally self explanatory. Available in these sizes 31, 35, 37 please specify size upon purchase. Shop online and save up to 80% on 1984 Mercedes-Benz 300D Auto Parts in Canada. (1) The diameter of the accelerator pump (2) The length and articulation of the accelerator pump (3) The mass of the pump discharge valve (4) The diameter of the pump discharge nozzles While other companies found the need for multiple accelerator pumps, Carter simply changed the operating volume of the pump squirt. Qoo10 - HOLLEY-50cc-Accelerator-Pump-Conversion-Carburetor-Carb-Offers Search Results : Pet Care,Automotive & Industry,Sports Equipment Items now on sale at qoo10. 8 CARBURETION: Holley #4412 or #0-80583-1 are the only carburetors eligible for use. Carb Adapter #2694 Mounts 4150 Holley Carb Sideways On Tunnel Ram 0. The #1 & #2 refers to the holes in the throttle lever for the screw that attaches the cams, positions 1 and 2. Compatibility - Holley 2 and 4 barrel performance carburetors; Includes pump discharge nozzle - Yes; Pump discharge nozzle size range - 0. Size (cc) 30cc (2) 50cc (4) 1 - 24 Holley Accelerator Pump Nozzle Screw Part #: 121-7 Line: HLY. 99 Regular price ACCELERATOR PUMP KIT. You really need the holley chart to make a decision whether to change cam position or cam color to get more squirt quicker. 24oz/7ml De In Eau Homme Toilette Toilette In Homme Eau Fuel Pour Box. 5 PV to a 6. 5, didn't seem. 4776 600cfm Primary main jets 69 Secondary main jets 71 Power Valve 6. This is why pumping the pedal on a carbureted vehicle aids in starting the. Nozzle sizes are stamped on each shooter (for example, a 31 stamp indicates a hole size of. The key is often I learned to change out the accelerator pump nozzle ‘squirter’ at the top if the carb. I was not really serious about that carb gasket But I am about vacum leaks Yes Holley has larger shooter nozzles. All Holley Main Jets are flow tested and then stamped with the correct number. BG is a great source for items such as the accelerator pump cam kits. Warm, choke off. This is a 31 - note the hollow screw that can be used anywhere but is important with nozzles larger than. Top quality wholesale automotive performance parts at the lowest price possible. And yet the auxiliary jet is supposedly a forth power fuel circuit? _____ If a water cooled engine cools its water with air, isn't it just an overcomplicated air cooled engine?. A larger hole will "shoot" the fuel at a faster rate with less pressure than a smaller hole. 037 Inch $9.
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