Turbo Sizing Calculator

The number is derived from a simple formula: (chainring size / cog size) X wheel size. maximum turbo cfm output = (3. The below table provides a base line for exhaust manifold dimensions for turbo charged engines. T he ejector computer model includes the following:. This will give you an accurate size chart to help you choose your new bike. If you have not bought TURBO swimwear before, we recommend that you purchase trunks and swimsuits that are two sizes larger than your normal speedo size. Get access to insight-driven wealth management services and free online financial management tools. You will need to provide total arrow weight and initial speed for the calculation to be effective, as well as some other optional info (see below). Search Site Pages Search Technical Documents. 0 liter engine, and are using a turbo capable of 600hp, and only pushing 250 to the wheels, you may need a larger wastegate than normal to prevent boost spikes. 4-liter 4-cylinder used by Honda for years. For simple gross income we recommend using the Gross Income Calculator. The required nozzle orifice size will be shown in the Nozzle Size box. 0L from 878 hp to 977 hp, with. Online calculator with Saturated Steam Table by Temperature. Starting Number of Blinds. The user of this program assumes allresponsibility for sizing their fuel injectors. Speedometer calculator for your Chevrolet. Any suggestions on twins? Fueling plans has changed according to my other thread as well since my horsepower target has increased a bit. 5L EcoBoost ® with 10-speed transmission boasts impressive power ratings of 375 horsepower and best-in-class* 470 lb. Enter two unknowns in the form below and press the "CALCULATE" button. Peak Horsepower RPM: Enter RPM at which engine should generate its peak horsepower. Now that we've played a little bit with how to stop a car, let's look at maximizing our vehicle's output. The only real downsides are its size. ASME (American Society of Mechanical Engineers) promotes the art, science & practice of multidisciplinary engineering around the globe. Remember that this is where the belt climbs to about 7/8 of an inch from the rim of the primary. TradeStation Group, Inc. We specialize in pumping solutions and services for rotating equipment, as well as separation, mixing and application technology. There are many ways to perform VE test with numerous calculators available on the web. When you increase the tire size without changing the gear ratio you increase fuel consumption and you can not drive at the low speeds needed for the off roads. Most tournaments start with 50-100 big blinds. 9 million new & used cars listings to find the exact car you are looking for the first time. The below table provides a base line for exhaust manifold dimensions for turbo charged engines. In order to find out the aspect ratio of an image or video, both width and height should be known in advance. Think of A/R sizing like sizing an exhaust for your N/A motor. 1188 | fax: 248. Our application is fast and entirely online. Use this for extreme ballpark use only. System Sizing Calculation. 0 to size your turbo! **Please note: TIER 4 ENGINES, you must contact the engine manufacturer for intake flow. com methanol nozzle calculator. There are many different programs available on camshaft selection Ivan Tighe Engineering are currently investigating these programs. It was developed using information supplied to us by Snow Performance. Max Duty Cycle %* Required Fuel. com tournament blind structure calculator suggests blind levels the way it does and what you can change to create the right blind structure for your game. Spray Nozzle Flow Rate Calculator This calculator is meant to assist you with estimating the flow rate of a spray nozzle at pressures that aren't listed in a catalog or if you do not have a catalog readily available. Find the engine specs, MPG, transmission, wheels, weight, performance and more for the 2016 Cadillac ATS-V Sedan 4D V-Series V6 Turbo. There are other factors I'll ignore for ease of discussion like overall size of the compressor, B-width, mach numbers, back sweep etc. Apply for an Turbo Tax Return Calculator 2019. Cubic Feet per Minute (cfm) or Cubic Meters per Hour (m3/h) are the two standard measurements. The full version you can get and use here: Calculator. NITRO Z Series bass boats, ZV Series multi-species boats, and Sport Series fish and ski boats. A mismatched turbo could not only result is extreme lag, but also wasted potential as a turbo can easily outflow an engine. It is mainly intended for use by U. Now that you have determined your base injector size you will need to determine the difference in size to run E85 Fuel. Learn more about Engine Air Amount Calculator. Turbocharger calculations; Turbocharger Calculations. For 2018, it is 2. 75 (M cells / ml / ° P) for a 5 gallon batch @1. By analyzing compressor maps, you can start narrowing down the size of the compressor you need for your application. Engine Selection Calculator Exhaust Backpressure Calculator; Pump Room Ventilation Calculator; Cooling Loop Calculator; Diesel Fuel Line Sizing Form; PLD Calculator; SPLD Calculator; Water Temperature Rise Calculator. Select another device. Ski Race Boats. Equivalent K-factor calculator. In the meantime, please use this formula or contact the factory at (216) 362-0755 ext. To access the working calculator, please sign up for free membership trial. Advanced search allows you to filter 4. Any suggestions on twins? Fueling plans has changed according to my other thread as well since my horsepower target has increased a bit. See effect on RPM & Speed when changing sprockets. Compound Turbocharged Diesel Engines 101. MPH Calculator. Despite what they say, size. Follow the steps below to select the correct nozzle(s) for your application. Nutrisystem is more than a diet plan, our FreshStart program is designed to help you lose weight fast and improve your health. Sizing; Turbo Sizing Calculation. The required nozzle orifice size will be shown in the Nozzle Size box. By analyzing compressor maps, you can start narrowing down the size of the compressor you need for your application. The Form W-4 helps your payroll department determine the correct Federal, and in some cases, state and local tax to be withheld from your paycheck. I am currently in the process of turbo-ing my car. Show off your truck in the free gallery. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed in each forward gear. Convert frequency to wavelength and vice versa. 14)(turbo compressor wheel size ÷ 2) 2 3. Sould be about 4 screws on the downpipe at a size of 15-16mm. From $ 161,900. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine RPM at highway speed. Additionally, the size of the Level 3 cache may play a role in some applications. Not a substitude for actual testing. ( Better to guess a little high ) Engine Type. The ID1000 was the first offering from Injector Dynamics, and was also the first to offer a number of innovative features to the motorsport community. In general Mitsubishi did a good job in sizing this turbo for the application. ’s SIPC coverage is available only for. Discover the efficiency and power of a turbo nozzle. If so, use an average length for the next. The smaller the interooler, the more CFM you will see out of it because it's let restriction. Homebrew Dad's Online Yeast Starter Calculator Use the calculator below to help you determine the proper size yeast starter for your next homebrewed beer. Not long after the diesel wars of the big three automakers began to heat up, truck owners began looking for ways to make them even more powerful. The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow:. I went to e-file after Oct 15 and it says it is no longer supported after this date. View and learn more about the professional grade lineup of trucks, SUVs, crossovers, and vans. Engine Building Calculators & Tables Determining the parts that best suit your engine require some complex equations. Equations displayed for easy reference. I will be adding all threads from the past that have been useful to all of us. The Sales Tax Deduction Calculator has been updated with overseas U. Speed-Wiz can provide a ballpark estimate for turbo sizing. LS motors with a single turbo up to 88mm can get away with a single 50mm wastegate with proper mounting; That same motor with twin-turbos will use 45mm and larger depending on the application and turbo size; Twin-turbo Coyote motors with up to 67mm turbos are using a pair of 40mm wastegates. Online calculator to quickly determine Pipe Sizing by Velocity for Water. (Member NYSE, FINRA, CME and SIPC). Military Personnel who are deployed overseas can use the calculator to determine the sales tax they paid while they were within the United States. Because coverage is assessed on a monthly basis or prorated, you will only owe a portion of the total penalty for the months that you are uninsured. Gear Ratio Calculator. Home » How-To » Pulley & Belt Calculator. What type of bike you choose will affect the bike size you buy. Get the best deals on Turbo Chargers & Parts for LS1 when you shop the largest online selection at eBay. Prop Slip Calculator. Calculations are compliant with geometric dimensioning and tolerancing standards. 75 inch primaries 3 inch collectors then going into a 2. Undo the turbo intake pipe. php on line 93. 4" Core Intercooler Mounting Brackets For Skyline R32 GTS GTR RB20 RB26. Mens Size Guide: Women's Size Guide:. Enter the engine displacement size for the designation. This turbo has a flow capacity of about over 500HP. The only ping I have experienced is heat-induced due to 15-16psi on a 13C at 4500rpm+ on kick-down, and that is what you might expect with the stock turbo/IC at those boost levels actually, regardless of fuel. All you have to do is add your height, weight, and Specialized bike model, and you'll get all the info you need to take your ride to the next level. A percentage of your income (your excess income amount). Please see how you can integrate our widgets with your websites and online shops for selling tires and rims. Explore our latest models, download brochures, book a test drive or find your nearest Mitsubishi dealer. This section is designed to help in selecting the correct camshaft for your engine. When building a custom turbo kit, you often need to run a few numbers to find the best sized turbo for your application. As a constantly evolving tech company, we're committed to innovating and challenging existing workflows to save engineers time in their work processes and designs. For instance, larger turbochargers in the 66mm to 71mm compressor wheel inducer. You are going to use the multiplying factor of 1. Outlet temperature is not a good alternative to direct power measurement for efficiency calculation (such is done with compressible fluids) because high liquid heat capacity means the dT is small. I have bought a turbo kit that came with the dump pipe, waste gate pipe all the way until the midpipe [where the factory cat is bypassed]. the batch size and the gravity of the beer), and also allows you to overbuild your starter (if you are the type of brewer who. 2019 Tax Reform Calculator. Read real owner reviews, get a discounted TruePrice from a Certified Dealer and save an average of $3,106 off MSRP with TrueCar. There are tooltips over each input to tell you which values are affected by this input. Kinetic Fit. Aircraft charter rates are calculated using the jet’s hourly fee, fuel fees (if any), takeoff and landing fees (airports charge different amounts depending on the size of the private jet, and the current surcharge of the airport) International airports are more expensive to land in, while FBOs are usually much cheaper, and offer a much more. You will need to provide total arrow weight and initial speed for the calculation to be effective, as well as some other optional info (see below). Size CFM: Racing Carb. The following excerpts are from Jay Kavanaugh, a turbosystems engineer at Garret, responding to a thread on Impreza. Speedometer Gear Calculator. The life of the turbo will also be longer if you incorporate a blow-off valve setup somewhere between the turbo and the throttle body valve. 100% Accurate Calculations Guarantee: If you pay an IRS or state penalty or interest because of a TurboTax calculation error, we'll pay you the penalty and interest. Illustration of compressor housing showing A/R characteristic. This Adjusted Gross Income calculator will automatically update when you add or change the variables. TURBOTAX GUARANTEES. The Exhaust System. The health care reform tax penalty will be imposed on your 2014 tax return filed in 2015. 14)(turbo compressor wheel size ÷ 2) 2 3. Enter your car and track information, select the type of tune you want, and hit “Next”. Click the Calculate button. Proper attic ventilation can help reduce the load on your air conditioner. Notice: Undefined variable: unit_selection in /home/ivcityco/public_html/nuclearprojects. This is really not a "turbo" calculator, although it does have features that allow you to select a properly sized compressor if you plan on turbocharging a motor; it is really an intake tract simulator, performing thermodynamic analysis of the intake flow and approximating how much torque can be expected given some numbers that characterize the other efficiencies of the motor. Most people understand the basic function of an intercooler but no one seems to have any solid information on choosing the correct size for your application. The inlet (or, for compressor housings, the discharge) cross-sectional area divided by the radius from the turbo centerline to the centroid of that area (see Figure 2. Turbo Match Calculator. Buy your Water to Air Intercooler Kit here. Weight (lbs. Apportionment Step 3. You can, and people do, with draw-through carbed turbo setups and low-pressure water injection setups, except it isn't a good idea for a couple reasons. Sizing Vacuum Pumps Pumping speed, or capacity, is measured in terms of gas volume drawn in a length of time. Select another device. Steam Pipe - Online Pressure drop Calculator. If you'd like to explore my other articles about Obamacare, click these links: 2017 Obamacare Premium Tax Credit Calculator Version 2. Calculate Exit Area Enter Quantity, Length, and Velocity (You may change the air knife gap) 1. Find tire sizes for each Saab model, year, and option. This kit is capable of 350 to 500 horsepower (with proper supporting modifications)! This 4. This calculator ignores sign, and returns the absolute value!. Learn how to make beer at home with a top-rated homebrew starter kit or beer recipe. If you need a quick payday loan, try LendUp. sorry im overseas till apr next year so cant measure for you, theres a few other blokes on here with the same year model who might be able to help though. Adding a larger set of wheels and tires to your Porsche can improve not only performance, but the overall appearance of your car as well. If the air temperature will vary, what are the minimum and maximum temperatures in degrees F? The altitude the fan or blower will be operating at will also affect the performance of the fan or blower. You can also view the full Porsche 911 tire size chart below. Carb/TBI CFM Calculator. Available in three AR sizes. 6L I4 Turbo. To find the correct nozzle size you need to know the flow of your system and the pressure you wish to achieve. The way to do this is to do some simple math. DISCLAIMER: This exhaust wrap calculator is a tool to estimate how much exhaust header wrap you will need for your headers, downpipe, or exhaust system. Look for something that'll pump the most air into your engine. Entering commands from the keyboard. If you need a quick payday loan, try LendUp. The calculations assumes the necessary modifications for ambient condition through the use of IAT and MAF. Our innovations deliver top performance and premium experiences for everyone. As the turbo use calculator offers you a brief list of possible turbo chargers with a purpose to meet your energy and increase stress desires to in shape your engine demands, it is a superb dependency to pick a slightly over-sized turbo charger in which your records factor (1125 cfm @ 1. US Navy Calculator - Body Fat Calculator What is my navy fitness level when measuring body fat using the Navy Body Fat Test and Navy Body Fat Chart? This Body Fat Navy Calculator uses the U. I know I’m hitting one good size hill and another very steep hill on my 3 mile trip to work, so nothing will get the rated flat miles the way I use it. This is a sample of the Rupture Disc sizing calculator. ( Better to guess a little high ) Engine Type. This helps you select the right size turbo. Ray Hall Turbocharging: Main page, Turbocharger kits, parts, fuel injection and java turbo calculator applets. Affiliates: All proprietary technology in TradeStation is owned by TradeStation Technologies, Inc. ’s SIPC coverage is available only for. Use CarGurus to find the best used car deals. How to Calculate a Turbo's Trim. Turbo sizing calculator. There are many different programs available on camshaft selection Ivan Tighe Engineering are currently investigating these programs. The amount of this pressure is a function of your right foot. High rise, air-under-manifold single plane. The engine in your car takes in air and fuel and converts them to horsepower. I will be adding all threads from the past that have been useful to all of us. Yep I put a Comp Turbo ceramic bearing oil-less 2871 (CT3. The user of this program assumes allresponsibility for sizing their fuel injectors. The compression ratio is a single number that can be used to predict the performance of any internal-combustion engine. hi there being a newbie this might be a little too much to ask , but does any one know how you would go about the math for plotting and over laying compressor maps for sizing series turbos aka compounds , please dont shoot me down , its not for any fixed application and i dont have any targets or data to expolate from , im purely after formulae and technical insight to help broaden my horizons. After installing the latest release, The following screen will be displayed:. 5 nine inch. - Stainless steel turbo manifold - Turbo T3/T4 T04E nobrand or GARRETT T3/T4 T04E ou GARRETT GT3076R (Garrett turbos are more expensive, see the price change automatically when changing the option) - Internal wastegate - specific downpipe - Oil line kit (feed ans return + fittings). Single 70mm Mustang Turbo Kit The On 3 Performance Turbo Kit for 1996-2004 Mustang GT 4. Altitude plays an important role in determining compression ratios. The PTC Calculator will point you in the right direction, but confirm what it tells you by consulting a competent tax advisor who knows your circumstances. Does a large turbo car make a terrible streetcar? Contributed by: Enginebasics. Once the type of manifold is known, one can then determine the size of carburetor necessary for the engine. 50 for naturally aspirated engines Supercharged engines should be between. This will limit what this turbo is capable of flowing, but it will bring down the capable flow rates of the turbo down to size with a smaller engine to help spool time and over all efficiency. Find the engine specs, MPG, transmission, wheels, weight, performance and more for the 2013 Ford Fusion Sedan 4D SE EcoBoost 1. Room ventilation calculator. Horsepower is related to airflow and airflow is limited by the pumping capacity of a given engine displacement. Your inducer is a good place to start to determine a turbo's general power potential for moving air since this is were the air is "introduced' to the turbo system. Manufactured and quality-controlled at New England Biolabs, Thermo Scientific® Phusion High-Fidelity DNA Polymerase offers both high fidelity and robust performance, and thus can be used for all PCR applications. Advanced search allows you to filter 4. Locate the cubic inch of your engine in the left hand column, then look across that row to the horsepower range that your engine falls into to see what size tubes should be used. net regarding exhaust design and exhaust theory:. Explore our latest models, download brochures, book a test drive or find your nearest Mitsubishi dealer. ) easily pulled 8 miles over these hills with no help from me, and 15-18 miles with my help. Steam Pipes - Thermal Expansion. Suggested cooking temperature is 350°F. If you need a quick payday loan, try LendUp. GAF Attic Ventilation Calculator. These links are provided only as a convenience. CFM Calculator: Engine Size like 350 or 454 etc. The below table provides a base line for exhaust manifold dimensions for turbo charged engines. supercharger weight = supercharger cfm + 50 10. Recommended Power Supply. The amount of horsepower your engine can make is a function of things like the size of the engine, the compression ratio, the boost (in turbo/super-charged applications) and several other variables. Turbocharger calculations; Turbocharger Calculations. Steam Pipes - Sizing. spool time in seconds = turbo compressor wheel size 2 (exhaust psi)(100) Exhaust psi can be assumed to be 30 psi for the above calculation. Compound Turbocharged Diesel Engines 101. FUTEK Advanced Sensor Technology, Inc is a manufacturer of Load Cells, Torque Sensors, Force Sensors, Pressure Sensors located in Irvine, California. The actual lenght of wrap needed will vary with installation procedures, but this exhaust wrap calculator will get you very close. Any damage to anengine or fuel injector is the users sole responsibility. , Luoyang 471009, P. The type or style of riding that you do will also affect which size you need. About SkyCiv. If you find that the parts you would like to use are not yet listed, please send the information to me at [email protected] These impellers and stators are alternately spaced and are inclined in opposite directions. This will give you an accurate size chart to help you choose your new bike. Turbosmart BOVs have big flow capabilities while being small in size and light in weight. Illustration of compressor housing showing A/R characteristic. Ok This website use cookies to save selected country, language or login (CustomerNet). To calculate the amount of ventilation you need for your home, visit GAF's Ventilation Calculator now. Manufactured and quality-controlled at New England Biolabs, Thermo Scientific® Phusion High-Fidelity DNA Polymerase offers both high fidelity and robust performance, and thus can be used for all PCR applications. It's simple mathematics. Wheel and Tire Calculator. Thanks again for the direction and I'll check out the turbo calculators. This calculator estimates your 60 foot, eighth and quarter mile elapsed times and trap speed when given the weight of the car and flywheel or wheel horsepower. Spray Nozzle Flow Rate Calculator This calculator is meant to assist you with estimating the flow rate of a spray nozzle at pressures that aren't listed in a catalog or if you do not have a catalog readily available. Before getting to the effect of turbo sizing and A/R ratio, a brief refresher course on turbocharging is in order. Manufactured and quality-controlled at New England Biolabs, Thermo Scientific® Phusion High-Fidelity DNA Polymerase offers both high fidelity and robust performance, and thus can be used for all PCR applications. To access the working calculator, please sign up for free membership trial. Generally speaking, the turbocharger is comprised of a compressor section and a. A turbo starts weak, then comes on strong at the max boost whoever picked the turbo for, and then tapers off like a loser once it can’t keep up with the engine’s air demand. Find your square footage needed with our map today!. See the Aftermarket ECU section for more info on that. Tyres are the only part of your bike that touches the ground when you cycle, so it is vital that you make the right tyre choice if you want to optimise your performance. The turbo calculator is the answer to my problem of choosing a turbo. Use this donation calculator to find, calculate, as well as document the value of non-cash donations. Pressure is defined as the normal force per unit area of a surface. Search Site Pages Search Technical Documents. Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. This is a basic description and understanding what size turbocharger is right for them. Activate and setup. FHA 1/300 guidelines. A smaller turbo will have good response with minimal lag, but won't be efficient at higher boost and create too much heat. Dehumidifier capacity is usually measured in pints per 24 hours and is determined by two factors: the size of the space that needs to be dehumidified and the conditions that exist in the space before dehumidification. Taxable Margin Step 4. Most people understand the basic function of an intercooler but no one seems to have any solid information on choosing the correct size for your application. This Adjusted Gross Income calculator will automatically update when you add or change the variables. The resource is much more site-specific than solar. The Industry Standard in Vertical Tillage. net Tire Size Calculator is the most popular application of this type on the net and is used by countless other web sites. Enter the Quantity of Air Knives 2. If you have a project, drift, drag,street, autocross vehicle Turbonetics has the right turbo for you. ASUS Support Center helps you to downloads Drivers, Manuals, Firmware, Software; find FAQ and Troubleshooting. Unauthorized reproduction of this software is strictly prohibited and will be prosecuted to the fullest extent of the law. The only real downsides are its size. This based on the same reasoning used to calculate needed carb CFM. TURBOTAX GUARANTEES. If you need a quick payday loan, try LendUp. Compressor Housing (Cold-side Housing or Cold-side Scroll). The resource is much more site-specific than solar. Killer turbo sizing calculator October 28th, 2009, 01:59 PM This is a great calculator you enter your engine data and pick your turbo and it will plot the graph for you. Pro Stock Turbochargers. The PTC Calculator will point you in the right direction, but confirm what it tells you by consulting a competent tax advisor who knows your circumstances. Turbomed Orthotics (and any of its respective directors, officers, agents, contractors, interns, suppliers and employees) will not be liable for any damages, losses or causes of action of any nature arising from any use of any of the informations or the provision of these above informations. 00* Build & Price. hi there being a newbie this might be a little too much to ask , but does any one know how you would go about the math for plotting and over laying compressor maps for sizing series turbos aka compounds , please dont shoot me down , its not for any fixed application and i dont have any targets or data to expolate from , im purely after formulae and technical insight to help broaden my horizons. (Equation 7) So, by using a reasonable estimated BSFC and a reasonable best-power air to fuel ratio, you can use Equation 7 to estimate the airflow required for a given amount of horsepower, and with Equation 3, you can calculate the airflow of your engine at a given RPM if it was operating at 100% VE. What's the most important component in a racecar? Not the turbo, not the engine, and not the suspension. The required nozzle orifice size will be shown in the Nozzle Size box. The air compressor can increase the amount of air the engine ingests by compressing it first. Online calculator to quickly determine Pipe Sizing by Velocity for Water. Fuel Injector Size Calculator (Other Fuel Injector Calculators have been moved to individual pages, check out the list HERE it's near the bottom of the page) 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. Select Language. BorgWarner Turbo Systems provides customers worldwide with a comprehensive range of 3K and Schwitzer replacement turbochargers and spare parts. CALCULATE VOLUME OF CYLINDER. Steam Pipes - Sizing. 2027 | privacy policy. Our CCTV Hard Drive Calculator can help you in making sure you have the adequate space to capture and retain your footage for your desired requirements. Correctly configure lines and tanks Minimise the pressure loss of your system and avoid idling losses by ensuring the correct choice of pipe diameters, tank size and line components. iPhone/iPad App. Start filing your taxes for free today!. Advanced search allows you to filter 4. Maximum refund and $100k accuracy guarantee. Max Duty Cycle %* Required Fuel. We specialize in pumping solutions and services for rotating equipment, as well as separation, mixing and application technology. 19 times the symbol rate, approx -10 dB points. On to a new subject for the Math section. 0L from 878 hp to 977 hp, with. CXRacing's Intercooler + Mounting Brackets For 1989-1994 Nissan Skyline R32, 4" IC Core Large In. The best option for running larger fuel injectors is to use a standalone ECU, such as Megasquirt. The engine in your car takes in air and fuel and converts them to horsepower. Tire Size. Illustration of compressor housing showing A/R characteristic. We are currently working on a digital calculator so that you can quickly determine the turbo you need. The derived SI unit of Force is Newton (N). Compression Ratio is an important variable in building a performance engine. DOC Sizing Calculator. Simulate texas holdem poker situations and see the odds of a winning hand. maximum turbo cfm output = (3. Injector Flow Calculator Injector HP/KW Rating Calculator Injector Flow VS Fuel Pressure Calculator Fuel Pump Calculator General Conversions. In an attempt to keep the information neatly organized, only moderators will be allowed to edit the FAQ. Click here to access the CALCULATOR. Determine Volume of space to be ventilated Volume (ft3)+ L x W x H, Where L+ Length, W= width, H=Ht. The calculator will tell you the cfm range you need. You could use empirical data gathered from others to determine the best possible header primary length and diameter -- and this is probably the easiest way -- or you could calculate it yourself given some basic information about. therefore to order the correct size. Now that you have determined your base injector size you will need to determine the difference in size to run E85 Fuel. Estimating air flow by horsepower If you know how much horsepower your motor makes, you can estimate its air flow in cubic feet per minute (CFM). Instead, keep things the same size as stock, and keep the heat in as much as possible. This will help you pick the right speedometer gears combination for your classic. On to a new subject for the Math section.