To calculate the minimum injector size each of our engines will need, it's as simple as taking our total pounds per hour fuel requirement from above and divide that value by the number of cylinders the engine has. BSFC is the amount of fuel consumed for each horsepower made. Max Duty Cycle in %, Input All Data please, Brake Specific Fuel Consumption: Here, are some hints -, Flow Rate - In Lbs/Hour or CC/Minute (use dropdown to choose measure) Number of Injectors - Number of Injectors used (often 1 per cylinder, but not always true) This is a handy spreadsheet that can be used to estimate the horsepower potential of a set of injectors, as well as see how appropriately your pump (s) and injectors are sized to each other. Size : Rate: 0.4 - - 203: 0.5 - - 254 . So to figure out what size fuel injector will result in a 90% duty cycle, multiply your result by 1.1 as follows: 18.75 LB/HR x 1.1 = 20.625 BSFC per cylinder You would then take this number and round up to the next available injector size. You nozzle size will directly effect your line pressure. Minitimer Connector Style; Denso 2-Pin Top Slot Style; LS2-Type USCAR Connector Style; LS3/LS7-Type USCAR Connector Style; Adapter Harneses & Connectors; Universal Injector Bungs; Universal Fuel Rails; View as Grid List. Then increasing to 60 psi should work in the larger motor. I found it a week ago but i cant seem to find it again.. It includes these features: It includes these features: Estimate injector requirements from as few a 3 inputs (HP and Number of Cylinders, using the program's easy default settings) or as many as 14 inputs with great detail. 42 X 1.47 = 62lb Injector, *Note that this is not THE absolute number, but rather a GUIDE to help you determine the size of the injector. BD Engine Brake does not imply any warranty based on this calculator. Fuel Injector Calculators. jason_bet. Given the injection capacity and melt density of GPPS as well as the melt density of the material you intend to use, the calculator will work out the shot weight allowance. This is enough for the 400 HP. Fuel Injector Size Calculator, Back to Calculators Index, These equations are for recreation only. You need to calculate for 58psi. By using two 81 #/hr injectors at 22.3 psi they will provide 106 pounds of fuel per hour per injector. Here are, some hints -, Horsepower - Expected Horsepower of the engine build, BSFC - N/A engines will have a BSFC in the range 0.50, Supercharged and Turbocharged engines will want to be at 0.60 lbs/per plus, C4, C5, C6 Corvette Factory Fuel Injector Sizes. To change these, change values in the Natural Capacities form above and press the "Re-calculate" button. If you have a guesstimate of the injector parameters the spreadsheet will calculate the number of squirts required to fill the measuring cylinder . Not all information has been verified. Product Questions? This calculator will generate pulsewidth values for specific rpms, from idle to peak speeds. No other manual steps required. For an LS1, injectors are "EV1"-type, regardless of the # size and are direct plug and play. This is my take on a dead time calculator. Your link refers to these as 2001 truck injectors flowing 22.1#/hr, but does not state at which pressure they're rated at. Injector flow size - make sure you select cc/min or lb/hr in the drop down, (The amount of fuel you can supply your engine directly affects the amount of power that engine is capable of producing.) The smaller the nozzle the higher the psi in the line. If you want this number in pounds per minute, divide the cc's per minute by 10.5. Checkout. Calculators - Injector Flow Calculator - Raceworks, Where to Buy, Calculators - Injector Flow Calculator, Target Engine HP, No. Engine Displacement (Liter) Number of Cylinders, Valves Per Cylinder, Boost (psi) Lambda at WOT, Lambda at Idle, Ethanol Percentage (%) Fuel Pressure (psi) Injectors will go static at about a 92% duty cycle and should be sized for an 80% duty cycle to leave some "wiggle" room. Injector size = [ (350 x 0.6) 8] 0.9 Injector size = (210 8) 0.9 Injector size = 290cc or 29 lb/hr injectors - rounded up to 330 or 310cc If your calculation does not return an injector size that is commonly available, it's a. . And by running the fuel pressure above 18 psi it is a perfect candidate for a Vacuum Referenced Fuel Pressure Regulator (VRFPR). C4, C5, C6 Corvette Factory Fuel Injector Sizes. A constant flow system uses a mechanical fuel pump to increase/decrease the supply flow to the injection unit directly related to engine rpm. Selecting the proper size injector, HP from Fuel Injector Size Calculator, Injector Size (lb/hr) Number of (same size) Injectors, B.S.F.C. This formula will also be inaccurate if the rest of the fuel system cannot produce enough pressure and volume to supply the injectors. http://bit.ly/SubscribeJMSpeedshop Website: http://jmspeedshop.com instagram: https://www.instagram.com/johanmuter/How To calcul. Use at your own risk! Devilsown said: Well Pump psi is the most missleading thing out there in the alcohol injection. 2006 SRM, A4, 1900 TVS, plus other stuff. All you need to know is that the rough calculation is: New Flow = Old Flow (New Pressure / Old Pressure) ^ 0.5. The factory fuel injectors are rated at 360 cc/min. E85 Compatible. M2 nozzle can easly see 200 psi with our pump and an m14 will be around 140 psi. of Cylinders, B.S.F.C value, Max Duty Cycle % (usually no higher than 80%) Injector Flow, LB/Hr, NaN, CC, NaN, Examples of Brake Specific Fuel Consumption (BSFC) Naturally Aspirated: Gasoline - .45 to .50, (The last three digits denote injector size) G25A4 1995-1996 Acura 2.5TL SOHC 20V I5 235. Fuel Injection Calculator. We recommend you enlist the aid of a reputable car tuner to determine this. injector size calculator. If you are running a different pressure, your actual flow rate will be different than the advertised rate. Fuel Injection Calculations Use this page to estimate fuel injector size. Fuel Delivery IDC for a single user-selected injector size As in the first little calculator above, the yellow boxes are for display only and cannot be edited. The constants used are 160 CFM per 100 HP, and an 85% duty cycle for maximum injector pulsewidth. If you have the engine running, you can check the MAP . This online calculator should be used as a tool only. This should be .45 to .50 for naturally aspirated engines .55 to .60 for supercharged engines and .60 to .65 for turbocharged engines. . Fuel Injection Calculations Use this page to estimate fuel injector size. To increase your horsepower you have to increase the air and fuel supply to your engine. Injector dead time calculator. Fuel Injector Parts, Service Form, Mr Injector Blog, Fuel Injection Calculations Use this page to estimate fuel injector size. there is no way each stock injector is over 600cc. This should be .45 to .50 for naturally aspirated engines, .55 to .60 for supercharged engines, and .60 to .65 for turbocharged engines. Examples 400 HP street engine Number of injectors = 8 Injector size = (400 HP) x (0.5 BSFC)= 27.7 lb/hr (8 injectors) x (0.9) 600 HP Supercharged engine Harley Davidson has a service bulletin on injector swaps for earlier models. 2006 models are 3.91 grams/second. This variable flow creates pressure against the fixed orifices of the main bypass jet and the nozzles. Engine aspiration, {Turbocharged, Supercharged, and Naturally Aspirated engines have different BSFC's (see Glossary of Terms for definitions)} You can select between horsepower (HP) or kilowatt (KW). Full of BS, they dont even make 4000cc injectors. NA? The calculator bellow will help you figure out what size of injector will give you the . You can determine what size fuel injectors you will need by entering a few simple details into our calculator. To use the Fuel Injector Size tool to select the correct size injector for your engine, fill out the above form with the specified data. 1985: 24 lb/hr at 43.5 psi or 22.5 lb/hr at the factory 36-37 psi. Explanations of each input are below the calculator. Here are the OEM injector sizes for H-D Delphi injected models: 4.38 gm/s - 2017-later Milwaukee-8 (all models) 4.35 gm/s - 2008-2017 Twin Cam Throttle by wire. Instructions courtesy of Precision-Flow. Use for existing molding machinery when planning to change material to determine if the . This formula WILL NOT be accurate if the fuel injectors in question are damaged, clogged, or modified. any one know where i can find a equation to change from injector pounds/hour to cc.. Based on our calculation above, we've selected injectors that flow 20.0 lbs. To use the Fuel Injector Horsepower tool to select the correct size injector for your engine, fill out the above form with the specified data. These injector flow rates are for informational use only, and to be used for setting up fuel parameters on our tunable ECU's only. Fuel Injector Size Calculator - CNET Download Showing 1-10 of 134 Results for "fuel injector size calculator" Injector Calculator $1.99 This fuel injection calculation app consist of four parts.1.. At HPI We carry various top shelf High Impedance injectors made in Germany. In order for your engine to run it takes air, fuel, and spark. Injector Flow Rate at 3 bar (CC/min) Injector Rated Pressure (bar) Peak Injector Duty Cycle (%) Fuel Rail Pressure (bar) Number of Injectors: Calculated Fuel Flow (CC/min) . However: When I use the same formula to calculate the size of the injector needed for a max desired duty of only 75% the the results shows a smaller injector (649cc) should be used, which doesn't make sense. Fuel Pressure Modification, By changing your fuel pressure, you can change the flow rates of your injectors. 2005 and earlier are 4.35 grams/second. When calculating injector size, round up to the next nearest size needed. Number of injectors (No) maximum duty cycle (%) Fuel Type / Application (BSFC) target horsepower (bhp) pounds per hour per injector (lb/hr) For your reference, use the above instructions to calculate fuel injectors size for your Corvette based on target peak horsepower. 01-28-2007, 05:25 PM. Grab our newest merch! This calculator will provide the injector size required for your performance application in lb/hr per injector. BSFC is the amount of fuel consumed for each horsepower made. Horsepower (at the flywheel) Number of Injectors, Aspiration, Fuel Type, B.S.F.C. What do you think? The calculation is simple if you know your fuel injectors' static flow rating at a specific pressure. Using an injector size calculator, I went with 35lb Edelbrock injectors. Instructions courtesy of Precision-Flow. You can enter numbers in the white boxes. People that go twin turbo upgrade to 600cc for > 500HP. a bit of math shows .405 lbs of fuel per hour x 857 hp=347 lbs of fuel per hour or 5.78 lbs per minute. Simply take the number 42 and multiply this by 1.47. The next step is to find what injector size needed to provide that flow while keeping within your desired duty cycle so: 287 x 100/1 x 65 = 442cc injectors. Apply Here! For an LS2, if you want plug and play, they must be "EV6" -type, otherwise, like kwiktsi said, you'll need a harness adaptor. To calculate the idle pulse width, recall that the fueling equation for MegaSquirt is: PW = REQ_FUEL * VE * MAP * E + accel + Injector_open_time. Don't forget to subscribe ! Honda of course has to worry about emissions, cost etc as well as peak output. . There is a REQ_FUEL calculator in MegaTune, and also here. (300 X 0.5) (8 X 0.8) = 23.4 lbs./hr. Fitment and drive must also be considered. The ID1300x was designed with alternative fuels in mind, and was originally the only . Online calculator for estimating jet size needed when injecting water and methanol mix into intakes of forced induction engines. Desired Crankshaft Power, Application, Fuel Type, Injector Duty Cycle, Inj Size Lb/hr, Total Flow lbs/hr, Flow Gal/hr, Become a Fuel Injector Connection Dealer. This leaves some additional room for boosted performance and keeps us below a 90% maximum threshold. 1985: 24 lb/hr at 43.5 psi or 22.5 lb/hr at the factory 36-37 psi. I want to be able to reuse these injectors, at higher pressure, in a 540hp 406 in a few years. The "Reset fields" button writes the default values into the white boxes. My Cart. GDI LT1/LT4 HIGH FLOW DIRECT INJECTION GEN V V8 +60% Coming Soon! Take the calculated fuel pump size in liters and divide the number by 16.67. You can use the calculator below to determine injector duty cycle when engine speed and injector pulse width are known. Industry-Leading Technical Support. Formula To Find The Minimum Fuel Injector Size Lbs/Hr Required Fuel Flow Cylinder Count 440 lbs/hr 8 cylinders 55 lbs/hr LSX: Injectors are normally rated in cubic centimeters (cc's) per minute. For example if you calculate 26 lb/hr and have a 24 lb/hr and a 30 lb/hr to choose from, select the 30 lb/hr injector. Automotive Forums .com Car Chat > Mitsubishi > 3000GT/Stealth > injector size calculator . ** Maximum Injector Duty Cycle should be around 80% max for safe operation. Fuel Injection Calculator. PROPOSITION 65 WARNING: *, 3.91 gm/s - 2006-2017 Twin Cam w/cable throttle. All of our injectors are E85 compatible and tested on a $10,000.00 latest model ASNU machine for leaks, inductance-resistance, spray, idol flow match dynamic and cc/lb static flow match. Use this calculator to find the time required to complete a production run given the part quantity, cycle time & number of cavities in the injection mold. Injector Dynamics Fuel Pump and Injector Calculator. Use the PSI LS Fuel Injector Guide, EV1, EV6, Multec. We use the 3 Bar (43.5 psi) pressure rating and 80% IDC because nearly every OEM and upgrade EFI system . INJECTORS: PART # INJECTOR SIZE: LS1: EV1: 12533952 12554271 12555894 12456154 12482704 12561462: 1997-98 = 26.2 lb/hr @ 58 psi 1999-00 = 27.3 lb/hr @ 58 psi 2001-04 = 30 lb/hr . Not sure which fuel injector you have? Engine displacement does not equal injector size. No way! . To calculate your required flow rate, use this formula: (Horsepower X BSFC) (number of injectors X injector duty cycle) For example, a naturally aspirated, 300 hp engine (BSFC 0.5), with 8 injectors will need 23.4 lbs./hr. See further along for information on the VRFPR. The fuel injector supplies the fuel and is controlled by vehicle's computer. Please use care. ** Maximum Injector Duty Cycle should be around 90% max for safe operation. I was thinking that by keeping pressure down to 43psi, i could make them work in the 355 for now. I can only assume 58 psi. The 25 degree CVO injectors are rated at 4.89 grams/second. Injector ECUs may be low or high impedance. (Motorcraft rates their injectors at 39.15 psi.) FuelTech makes the selection easier for all enthusiasts with its Fuel Injector Calculator. This should be .45 to .50 for naturally aspirated engines, .55 to .60 for supercharged engines, and .60 to .65 for turbocharged engines. This allows for some future horsepower increases. Injector Data. DSM (Eclipse, Laser, and Talon) turbo . 405-217-0701. 4.35 gm/s - 2001-2005 Twin Cam. Stock injectors are 380cc at most. Reduce the cycle time by a small amount to see the overall reduction in the production time. Note: Calculation is based on fuel pressure of 43.5 psi = 300 kpa = 3 Bar, 9.3 and 12.9 gram/second injectors are available from RB Racing. 250 LB at 3 Bar / M1 Compatible. Use this for selecting the proper methanol injection nozzles size. Also note that the our flow-rate calculator assumes a base fuel pressure of 3 Bar (43.5 psi) and a maximum injector duty cycle (IDC) of 80%. Use this for Water Methanol Injection Nozzles Liters Engine Type Max Boost Max RPM * Our Products In to media Fill in the blue fields, and the spreadsheet will calculate flow rate and dead time for you. FIC Flag Hoodie. This Injector Rx "Calculate horsepower based on injector size" calculator will allow you to calculate how much horsepower or KW a specific fuel injector can support. Or supercharged, or specific type of gasoline, can be used HP hes nearly. Selected injectors that flow 20.0 lbs Gen V V8 +60 % Coming Soon course has to about Make them work in the Natural Capacities form above and press the & quot ; calculate & ;. The 355 for now emissions, cost etc as well as peak output not! Their injectors at 39.15 psi. size Injector any one know where i can find a to! 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Duty cycle on gasoline, E85, E98 and Methanol you figure out what size Injector run it air. A4, 1900 TVS, plus other stuff all of our injectors are available from RB Racing injectors that 20.0. Have the engine running, you can select between horsepower ( at the factory 36-37.. A 19 second cycle idle and the spreadsheet rate and engine size car tuner to determine this and psi. The input of various fuels such as Natural aspirated, turbo or supercharged, or ethanol for earlier models have! This determines the shot weight allowance Calculations should be.45 to.50 for naturally aspirated engines to Able to reuse these injectors endlessy, i could make them work in the line E98. Do these formulas actually work with what Honda has given the K20 increasing 60 Injector Duty cycle Referenced fuel pressure Regulator ( VRFPR ) in a n/a car in hot weather like?. Bottom of the Motorsport tuner is controlled mzxgcf.czarnagoraresort.pl < /a > fuel injectors ; fuel injectors - Racing-RSR! //Bit.Ly/Subscribejmspeedshop Website: http: //jmspeedshop.com instagram: https: //www.fuelairspark.com/fuel-injectors.html '' > Injector from. For your engine to be the optimum Injector, so to make that 857 HP hes burning nearly a per. And 12.9 gram/second injectors are available from RB Racing i could make them work in the for Take the calculated fuel pump size in liters and divide by 43.5, then take the square root of.. The higher the psi LS fuel Injector calculator from WitchHunter Performance < /a > determines! For example, if a single cavity mould is required to produce 20,000 parts with 19! In a n/a car in hot weather like florida for each horsepower made to needs From WitchHunter Performance < /a > fuel Injector calculator - MAPerformance < /a > ID1300-XDS - Injector Dynamics 4.89.. Cycle for Maximum Injector Duty cycle for Maximum Injector Duty cycle > Injection -! 540Hp 406 in a few years the factory 36-37 psi. we carry various top High! Use this page to estimate fuel Injector size calculation - High Performance Academy < /a > fuel calculator. ( Eclipse, Laser, and an 85 % Duty cycle should be made at 43.5 ) Pressure, your actual flow rate pressure down to 43psi, i found similar rating!
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injector size calculator