Wallace race calculator

Wallace Racing BACK to Calculators Todays date is 10/11/2023 MPH From Gears Calculator: Enter Vehicle Tire Diameter: Enter Vehicle Rear Gear: Enter Vehicle Trans Gear ...

Wallace race calculator. Wallace Racing BACK to Calculators Todays date is 9/10/2023 This is an interesting calculator. It uses the intake valve diameter size to figure out the approximate Horsepower for a well optimized engine. This is just for entertainment value. Gives a generally accurate ballpark number, though. ...

Time/Space Travel Calculator - Wallace Racing Wallace Racing BACK to Calculators . This example uses the classic scenario where two twins are in the space program. One is an astronaut and takes off from earth in a spaceship while the other stays on earth to monitor his progress.

Site: Contents: Link : Max Performace : Forums: Click Here: Butler Performance: Parts, Catalog: Click Here: Kauffman Racing Equipment: Parts, Catalog: Click HereWallace Racing BACK to Calculators For a more accurate calculation try Larry Meaux's Pipe Max. His program is excellent and will provide a lot of info. ... Street Turbocharging: Race Car Vehicle Dynamics: Race Car Engineering & Mechanics: Automating Microsoft Access with VBA: Managing Data with Excel: Excel Best Practices for Business: Excel ...The hustle and bustle of everyday life can be overwhelming. With work, family, and social obligations, it’s easy to feel like you’re constantly running around and never getting a chance to relax. That’s why taking a vacation is so important...I got the following results from the Wallace Racing calculator: Static compression ratio of 9.73:1. Effective stroke is 3.20 inches. Your dynamic compression ratio is 7.54:1 . Your dynamic cranking pressure is 148.00 PSI. Your effective boost compression ratio, reflecting static c.r., cam timing, altitude, and boost of PSI is 7.54 :1.Calculate HP to Drive Oil Pump. PONTIAC POWER RULES ! ! ! Mean Effective Pressure Calculator: Wallace Racing BACK to Calculators. Mean Effective Pressure Calculator: RPM: RPM CID: Cubic Inches HP: HP Input DATA Please ...Calculate Rear Gear Ratio for given MPH, RPM and Trans Gear Ratio 10/11/2023 08:46 PM PONTIAC POWER ... for given MPH, RPM and Trans Gear Ratio Wallace Racing …

Calculate Engine Performance Coefficient. Potential Airflow Number (PAN) Engine Performance Coefficient (EPC) provides another basis (in addition to BMEP, BSFC, MPS and BHP/Cubic-Inch) for comparing one engine to another. This book provides a comprehensive reference for anyone wanting to study the way in which modern vehicle engines work, and ...Oct 10, 2023 · Back to Calculators Index These equations are for recreation only. Convert ET's For 1/4 Mile and 1/8th Mile. Convert 1/8th Mile Stats to 1/4 Mile Stats: These 10 major players in the private sector space race are determined to reach the final frontier. Learn more about who these 10 space companies are. Advertisement Today, countries and companies small and large jockey for position in the s...Maintenance mode is on. Site will be available soon. Thank you for your patience!EAN: 9780824707026. sales rank: 1657269. price: $140.00 (new), $149.99 (used) Provides step by step strategies to analyze, control, and design diesel engines, their systems, and major components. Also provides methods to calculate diesel engine systems for optimal performance, efficiency, and maintenance in marine, industrial, manufacturing ...Wallace Racing BACK to Calculators Todays date is 10/11/2023 These equations are for recreation only. Not a substitude for actual testing. Enter your Rear Wheel HP and Blower Boost of your carAlcohol Mechanical Fuel Injection Calculations : Wallace Racing BACK to Calculators. Alcohol Mechanical Fuel Injection Calculator: CID:

Back to Calculators. Index. Carb CFM Calculator. Required Intake CFM This calculator will help you determine your engine's intake CFM requirements. Enter the engine's displacement, Volumetric Efficiency, and its redline. The calculator will tell you the CFM range you need.Calculate Over Lap and Lobe Separation Angle. Wallace Racing BACK to Calculators. You need to use the advertised duration numbers and the seat to seat numbers to be accurate. Enter your Advertised Intake and Exhaust duration and Intake Opening and Exhaust Closing Points. LSA and Overlap Calculator.Wallace Racing BACK to Calculators Speedo Gear Calculator. At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. These numbers correspond to the number of revolutions the speedometer cable must make to register one mile on the speedometer.D-Link DP-300U 10/100TX 1-USB Port 2-Parallel Port Print Server. HP Wireless G Print Server. Writing Excel Macros with VBA. Linksys PSUS4 PrintServer for USB with 4 Port Switch. HP Wireless Printing Upgrade Kit. IOGEAR USB 2.0 Print Server, 1-Port. Xantrex Technologies 851-0400 XPower Plus 400-Watt Inverter. Home Wind Turbine 600w/12V - Small ...

How much does a pallet of pavers weigh.

RPM At Peak HP Calculator; HP Necessary For A Speed; Estimate 60 Foot Time From Quarter-Mile ET; MPH at the 60' clock ; Estimate HP From 60 Foot Time ET; G Force from 60' Times; G Force from HP and MPH; Braking HP Loss at Altitude Calculator; 0 - 60 Calc; Calculate Distance Of Win From MOV; Calculate Margin Of Victory; Calculate Distance ...The Wallace Racing Calculator is an advanced tool employed in the racing industry for predicting the performance of racing vehicles. It uses specific variables, such as weight, horsepower, and trap speed, to calculate key performance indicators such as quarter-mile elapsed time and weight-to-horsepower ratio.NASCAR races generally last anywhere from 1.5 to 4 hours, depending on the length of the race, number of laps and track conditions. Many races are 500 miles in length, though some are shorter or longer.This seems very confusing but it is because even though it is a -cc on the piston, those same cc's are gained in cylinder volume. Hence the positive number in the calculator. Same goes for a dome where it is positive cc's on the piston but a reduction in cylinder volume. Hence the - (negative) number in the calculator.The amount of time, expressed in crankshaft degrees, that describes the window of time between the the Inlet Cam's opening point BTDC and the Exhaust Cam's closing point ATDC. This figure can vary between zero degrees on some stock cams to as much as 70 to 90 degrees on some race motors. In general most street engines will have 20 to 30 degrees ...

Oct 11, 2023 · Wallace Racing - Horse power Calculator. ET/MPH From Horsepower Calculator: Weight is as the car sits at the line: driver and gas in the car. Here we revisit our Wallace Racing Calculator. Luckily, certain fuel blends are very easy to achieve with minimal math. A great example of this is E40. Usually Pump Ethanol hovers around 70% Ethanol, and Pump gas is 10% Ethanol (US ONLY). It just so works out that a 50/50 mixture of these two yields E40 as demonstrated on the Wallace Calculator ...Estimate Converter Slip. In order to get a realistic value, use: Your finish line MPH. Your finish line RPM. Your ring and pinion (gear size) Your circumference or roll out of the rear tires (excluding high growth profiles). Measure it. Fill In The Blanks. CONVERTER SLIPPAGE CALCULATOR.Alcohol Mechanical Fuel Injection Calculations : Wallace Racing BACK to Calculators. Alcohol Mechanical Fuel Injection Calculator: CID:HP Required To Overcome Rolling Resistance Calculator. Weight of Vehicle. pounds. Coefficient of Rolling Resistance. (Auto tire is usually .015/.016) Vehicle Speed. MPH. Input Parameters, Please. Frontal Area HP Calculator.Calculate Over Lap and Lobe Separation Angle Wallace Racing BACK to Calculators. You need to use the advertised duration numbers and the seat to seat numbers to be accurate. Enter your Advertised Intake and Exhaust duration and Intake Opening and Exhaust Closing Points.To be sure you're using the running time calculator properly, let's go together through the example below: Fill in the distance of a recent race result: say it was a half marathon, D 1 = 22 k m. \small D_1 = 22\ \rm km D1. . = 22 km. Type the time which you have achieved on that distance: It was.The motor is a basic L33 with a 4L80 and Freakshow single billet converter. Last year I made about 4 decent hits before the end of the season where I was 137-139 at sub 10.3. My slip, according to Hughes and Wallace Racing calculators, was from 7.5-8.5%. I'm using the 1st and 3rd lockup to launch, but plan to put in a D1 manual valve body, or ...9/2/2023 08:25:28 AM Wallace Racing BACK to Calculators These equations are for recreation only. Not a substitude for actual testing. The HP is based on flywheel HP, for rear wheel HP multiply the results by your drive train percentage loss and subtract it from the result.Use this calculator to find your anticipated ET for Today's conditions. Input a run for the 1st Run, using that runs weather conditions. Then input Today's weather conditions. If you want sea level run, the 2nd set of pre-entered inputs is sea level conditions. After clicking the Submit button, you will be given an ET/MPH for what your car will ...

Calculators by Wallace Racing. ET - HP Calculators; Convert ET To Today's Condition; 1/4 Mile Stats Calculator; ... Head - Exhaust Calculators; Air/Fuel Ratio Converter;

Compression Ratio Calculator - Wallace Racing. Compression Ratio Calculator. Common Pontiac Engine Displacements : (click the button for that bore and stroke for each engine) Click the following to add to the bore size. (Note: If you click the buttons more than once, it will continue to add to the bore's value.) Number Of Cylinders: E85 Calculator. PONTIAC POWER RULES ! ! ! Calculate Amount of Ethanol to Make E85: Back to Calculators Index These equations are for recreation only. This is using 1 gal of mixture and 100% Ethanol to add to mixture to bring it up to E85. (85% ethanol) Calculate Amount of Ethanol to Add to Mixture to Get E85 ...Instructions: 1) Enter a value in any box. 2) Click the 'Calculate' button. 3) All other values will be automatically calculated. Compute ET and MPH at 60', 330', 660' and 1000'. 60' time: To find the ideal gear ratio for cruising use your RPM at peak Torque. Example: If your max Torque is at 3300 RPM use 3300 for the RPM. This book provides a comprehensive reference for anyone wanting to study the way in which modern vehicle engines work, and why they are designed as they are. The book covers virtually all configurations of ... Rusty Wallace Racing Experience www.RacewithRusty.com 401-543-FAST (3278) IMPORTANT - PLEASE READ UPON RECEIPT Dear Student: Thank you and welcome again to Rusty Wallace Racing Experience! You can look forward to having an amazing day and the experience of a lifetime, so please let us know if there is anything we can do to assist you.Wallace Racing - Cam Degree Calculator PONTIAC POWER RULES ! ! ! Cam Degree Calculator Wallace Racing BACK to Calculators Use Advertised Durations - usually at .006" If you use .050" Duration numbers the opening/close will be at .050"Wallace Racing. Calculators; Tech Articles; Search Codes; Menu; Calculators, Search Codes and Tech Articles; Convert ET To Today's Condition; 1/4 Mile Stats Calculator; Another 1/4 Mile Stats Calculator; 1/8th to 1/4 to 1/8th Conversion; 1/8th Mile Stats to 1/4 Mile Stats; Compute ideal MPH and times at 60', 330', 660' and 1000'

Alaska airlines partner award chart.

Mychart the everett clinic.

Lift Changes with Rocker Arm Ratio Variations. Enter the required information into the white boxes and click results! Tips. Rocker Arm Ratios.... insert them as 1.5, 1.6 etc. Insert the valve lift as a decimal, for ex. .480. Current Rocker Arm Ratio : Valve lift for the lobe affected: New Rocker Arm Ratio: Calculate HP with HP Correction. 10/11/2023 12:03:56 AM PONTIAC POWER RULES ! ! ! Calculate Engine Parameters: Back to ... Race Car Vehicle Dynamics:Calculate HP to Drive Oil Pump. PONTIAC POWER RULES ! ! ! Mean Effective Pressure Calculator: Wallace Racing BACK to Calculators. Mean Effective Pressure Calculator: RPM: RPM CID: Cubic Inches HP: HP Input DATA Please ...B. Bad Influence Racing · #5 · Apr 15, 2010. Yes, anytime you drop gear, the converter will be under more of a load, causing it to slip more. Every engine is different, and that is why some guys go through like 9 or 10 before they get it right. Optimally you want less than 5, but there are many variables.Calculate Primary Header Tube Length and Diameter Wallace Racing BACK to Calculators. These formulas are from A. Graham Bell's Performance Tuning in Theory and Practice. For a street engine, the RPM used should be the peak torque RPM. For a race engine, the peak hp RPM should be used.Wallace Racing - Horse power Calculator. Back to Calculators Index Cranking Compression Calculator For the IVC (Intake Valve Closing) data, the seat to seat timing of the cam is used. NOT the .050" timing data. Cranking Compression Calculator : Number of Cylinders : Bore in Inches :Results are more accurate if you have a pair and drive a real Pontiac powered vehicle. Reply. Save. B. bracketchev1221 · #7 · Oct 15, 2017. Well either the mph at the 1/8 is off or your car does not leave real well. Generally 5.90's takes about 15 mph less at the 1/8. Best ET 8.87 at 151 @ 3200 lbs. Sold 3/18. Reply.Calculators by Wallace Racing. ET - HP Calculators; Convert ET To Today's Condition; 1/4 Mile Stats Calculator; Another 1/4 Mile Stats Calculator; 1/8th to 1/4 to 1/8th Conversion; 1/8th Mile Stats to 1/4 Mile Stats; Compute ideal MPH and times at 60', 330', 660' and 1000'Wallace Racing BACK to Calculators. 1/8th to 1/4 to 1/8th Calculator: This calculator is mainly for Naturally Aspirated runs (Power Adder runs are not as consistent)When you factor in an educated guess for the truck's competition weight, the Wallace race calculator says it's easily knocking on the door of 1,000rwhp according to this eighth-mile trap speed (trap speed being a more accurate indicator of horsepower than elapsed time). ... Ken Phillips' Bracket-Racing, Daily-Driven, Cummins-Powered Dodge ...However, the higher fps numbers generated by the Wallace Racing calculator relative to 'Limiting Port Velocity' and port sizing represent actual air speed in the port of a 'live' (running) engine. These actual flow values relate directly to mach or sonic speed..... 0.55 mach (614 cfm at sea level) being max. theoretical flow beyond which 'choke ...This is a calculator for the Air Density Index. It will also give you the following: Grains of water vapor per pound of dry air. Density Altitude. Air Density. I have included them for your benefit. Air Density Index Calculator. Absolute Pressure : in/Hg. ….

Wallace Racing BACK to Calculators. V8 Intake Surface Mill Calc. This calculator will calculate the amount that needs to be milled on the intake face side of a V8 head. Some engines have a different angle for the intake side of the head. (intake side is not 90º to the head deck side)Calculate What Intake valve OD Would Be From RPM and CID. And A. Graham Bell s Performance Tuning in Theory and Practice.. VALVE / BORE Ratio The valve to bore ratio should be: 52-52.5% of the bore for Wedge heads. 53-53.5% for Canted valve, rotated canted valve (Mopar P/S hemi) and true Hemi. If you decrease intake exhaust ratio down to 70-71% ...IOGEAR USB 2.0 Print Server, 1-Port. Xantrex Technologies 851-0400 XPower Plus 400-Watt Inverter. Home Wind Turbine 600w/12V - Small Wind Generators with solar/wind output. RPM Drop From Shift Calculator - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules!Wallace Racing - Alternator Pulley RPM Calculator. Calculate RPM Of Alternator: Wallace Racing BACK to CalculatorsCalculate HP, Weight or Speed. Fill in any two of the three values to calculate the third. Weight - The weight of the vehicle in pounds. Trap Speed - The vehicle speed at the end of the 1/4 mile run. Horsepower - Estimated power the engine is making.BMEP Calculator. CID of Engine: cu/in. Torque: 2 or 4 Stroke: 2 Stroke. 4 Stroke. Please Input All Parameters. Torque Calculator.Wallace Racing - 1/8th Mile ET/MPH/HP Calculator Weight is as the car sits on the line; driver and gas in it. Input your HP and Weight please Calculate HP From Weight and MPH MPH Weight Input Your MPH and Weight of Your Car Calculate HP from ET and Weight ET Weight Input your ET and Weight pleaseEstimate Horsepower from Intake Airflow. Calculate Your HP From Head Air Flow. Back to Calculators Index. These equations are for recreation only. Not a substitude for actual testing. The HP is based on flywheel HP, for rear wheel HP multiply the results. by your drive train percentage loss and subtract it from the result.This calculator is used to determine the measurement of an advanced or retard degree setting on a harmonic. damper. If you determine TDC (Top Dead Center) and check the damper, then you may use this calculator. to give you the information to scribe the exact degree setting you would like to run. You could also input the ICL of your cam and use ...(click the button for that bore and stroke for each engine) Click the following to add to the bore size. (Note: If you click the buttons more than once, it will continue to add to the … Wallace race calculator, Wallace Racing - Roll Out. PONTIAC POWER RULES ! ! ! Back to Calculators Index. These equations are for recreation only. This is assuming the track infrared beams are at 1 5/8" height and the checking wheel is 22 diameter". Input the track's actual data if known. If the front wheels have a stagger in them, add that stagger to the roll out., Wallace Racing BACK to Calculators. These calculators are for entertainment value only. Not to be used in place of real testing. The units you input will be what the area answer units will be. For example: inches input, answer will be square inches. Calculate Rectangle Area:, This calculator will determine what the new lash should be for the new rocker arm ratio. New Lash From Rocker Ratio Change Calculator. Old Rocker Ratio: New Rocker Ratio : Original Lash: Input DATA Please. Calculate New Valve Lash Change From Rocker Ratio Change., Calculate CA From RPM and Bore/Stroke - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! www.wallaceracing.com Wallace Racing - Calculate Average CSA of Port, 19 mag 2021 ... ... race gas and come in a variety of colors to help you ... For the sake of this example we're going to be using the Wallace Racing Calculator., Wallace Racing - HP-TQ-RPM Calculator. Wallace Racing BACK to Calculators., Calculators by Wallace Racing. ET - HP Calculators; Convert ET To Today's Condition; 1/4 Mile Stats Calculator; ... Head - Exhaust Calculators; Air/Fuel Ratio Converter; , This calculator uses the Motorsports Standard Atmosphere (MSA). (Not ISA - International Standard Atmosphere) Grains - Grains of water vapor per pound of dry air. HP is at the crank. The HP Correction is a better determination of ET than the DA (Density Altitude). I have included them for your benefit., To find the ideal gear ratio for drag racing use your RPM at peak HP. Example: If your max HP is at 6300 RPM use 6300 for the RPM. Gearing for cruising To find the ideal gear ratio for cruising use your RPM at peak Torque. Example: If your max Torque is at 3300 RPM use 3300 for the RPM., Wallace Racing - Calculate New HP From Change In Compression Ratios Calculator. Calculate New HP From Change In Compression Ratios. BACK to Calculators 10/12/2023 12:10:32 PM. HP From CR Change Calculator. HP You Have Now: Old Compression Ratio. :1. New Compression Ratio. :1., D-Link DP-300U 10/100TX 1-USB Port 2-Parallel Port Print Server. HP Wireless G Print Server. Writing Excel Macros with VBA. Linksys PSUS4 PrintServer for USB with 4 Port Switch. HP Wireless Printing Upgrade Kit. IOGEAR USB 2.0 Print Server, 1-Port. Xantrex Technologies 851-0400 XPower Plus 400-Watt Inverter. Home Wind Turbine 600w/12V - Small ..., To calculate the cross-sectional area of rectangular and square runner profiles, measure the width and the height of the runner, and multiply the two together. ... Race Car Vehicle Dynamics: Street Turbocharging: Alison Balter's Mastering Microsoft Office Access 2003: Access 2003 Bible: D-Link DP-300U 10/100TX 1-USB Port 2-Parallel Port Print ..., The first calculator link posted by OlYELLER was Wallace's 1/8 mile calculator, which is very inaccurate. The Wallace calculator I posted shows: 121.45 @ 3995 = 515 RWHP and 573 flywheel HP. The Moroso says just under 550 flywheel HP, 121.45 @ 3995., mph, according to Hemmings. The quarter-mile time was recorded during a recent session at the San Antonio Dragway, and 0 to 60 time was calculated from it using the Wallace Racing Calculator. The 1968 Ford Mustang Medford claims the car's two electric motors produce over 800 horsepower and 1,800 pound-feet of torque together. Now that the, Go to Wallace Racing Calculators Punch in the numbers. you can get overall ratio, tirespeed, etc Reply Quote. Re: Truck Pulling March 19, 2014 01:32AM: Chris If you are 4wd and running on the low side of the transfer case that site may not have helped you. I have a spreadsheet setup to figure this if you give me your transmission ratio ..., Flow Conversion. CC/Min To Lb/Hr. Convert cc/min to lbs/hr. Input Data please. Flow Conversion., Calculate Cubic Inch Displacement of Your Engine. Enter The Bore: Enter The Stroke: Enter Number of cylinders: Please Input the Bore, Stroke and Number of Cylinders. Back to Calculators Index. Calculate Cubic Inch Displacement., Wallace Racing - Horse power Calculator. Todays date is 9/20/2023 Calculate your ET/MPH From HP/Weight. Back to Calculators Index. Acceleration Calculator: Weight …, Home; Converters. Torque Converter Stall; Circle Track; XTM and XFM Series; HD / Street & Strip; Performance; Full Race; The Billet Generation; 10″ – 12″ Hybrid, Calculate Rear End Gear Ratio Needed. Throttle Position Sensors. Electrical Wiring. Distributor Wiring Harnesses. Ignition Components. Crank Trigger Replacement Pickups. Distributor Cap and Rotor Kits. Distributor Hold-Down Clamps. Electronic Distributor Conversion Kits., Summit Cam Timing Calculator. This calculator will help you rapidly determine the perfect camshaft for your application. In the upper area, calculate individual valve events and lobe centerlines by entering Intake and Exhaust Duration, Lobe Separation and Advance. In the middle area, change the centerlines and see what it does to the individual ..., New Ratio: Lo Ratio: TIRE SIZE CHANGE CALCULATOR. This calc can be used to find a new gear ratio. Bigger tires are more functional, look better, and rob you of power. One way to compensate for this is to swap out your differential gears. The left side of the calculator requires all three entries. The right side will show the results., Home; Converters. Torque Converter Stall; Circle Track; XTM and XFM Series; HD / Street & Strip; Performance; Full Race; The Billet Generation; 10″ – 12″ Hybrid, The more optimized your car is for drag racing, the more accurate the analytics of your timeslip will be. And yes, a 700hp car with a stick and street tires will lose to a 500 hp car with a great converter, suspension, and slicks, every time.... or, almost every time.... (and a calculator would NOT tell the guy with 700 hp that he's GOT 700 hp.lol), I have used the wallace racing calculator but would like to see if there is a calculation for 60ft so that I can figure out how accurate the cars 0-60 compared to the 1/8 and mph calculator. I figure the correct 0-60 will be somewhere in the middle of these three different 0-60 calculations. Wallace Racing -Calculate how fast your car goes 0 ..., Wallace Racing BACK to Calculators. This calculator is for entertainment value only. Not to be used in place of real testing. Calculate HP, Weight or Speed : Fill in any two of the three values to calculate the third. Weight - The weight of the vehicle in pounds. Trap Speed - The vehicle speed at the end of the 1/4 mile run., Linksys PSUS4 PrintServer for USB with 4 Port Switch. HP Wireless Printing Upgrade Kit. IOGEAR USB 2.0 Print Server, 1-Port. Xantrex Technologies 851-0400 XPower Plus 400-Watt Inverter. Home Wind Turbine 600w/12V - Small Wind Generators with solar/wind output. Calculate Cubic Inch Displacement. , Wallace Racing BACK to Calculators. Superflow determined a long time ago that the maximum ideal value for head flow ratio is 146 cfm/sq.in. This number is for an 'ideal' frictionless orifice with no dump or expansion losses. A good ratio would be 133 cfm/sq.in. for a single intake valve. 137 cfm/sq.in. is good for a 2 intake valve setup., Oct 11, 2023 · Wallace Racing - Horse power Calculator. ET/MPH From Horsepower Calculator: Weight is as the car sits at the line: driver and gas in the car. , The correction factors are .9367 and 1.0661 for 5000'. (14.4 * .9367) = 13.50 , (103 * 1.0661) = 109.80 MPH. So the correct timeslip would be 13.50 @ 109.80 MPH at sea level) Altitude Correction factors by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules!, Wallace Racing BACK to Calculators Speedo Gear Calculator. At the bottom of the speedometer face, look for the numbers 940, 960, 1000, or 1020. These numbers correspond to the number of revolutions the speedometer cable must make to register one mile on the speedometer., Calculate 1/8 mile ET,MPH and Ideal Gear Ratio using HP - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! , Wallace Racing BACK to Calculators. This calculator can be used to see what the cubic feet per minute (CFM) would be needed for an engine of a certain size (CID) and at a certain RPM. If you use 100% (or less) for the volumetric efficiency (VE %) it would be what the CFM would be calculated for that RPM.