gear ratio calculator

Solve for your Crawl Ratio. Shifting at 5000rpm from 3rd gear into 4th (76mph), sees engine speed drop by almost 1500rpm, to a little over 3500rpm. Solve for your Tire Diameter. Gear Ratio Calculation Basics. For example, the default figures in the chart are for a stock ratio transmission as fitted to a Type 1, 1303S (3.88 ring and pinion). For example, if the pinion gear has 41 teeth, and the ring gear has 11 teeth, the ratio would be calculated as 41/11 which = 3.73 so 3.73:1. Access Optimum Transmission Gear Ratios Calculator. Transmission 1 - MPH | KM/H. Your axle gear ratio determines how many times your driveshaft needs to rotate in order to complete one full tire rotation (a 3.73 gear ratio requires 3.73 driveshaft rotations to turn your tires 360 degrees). Gear Calculator Dealer Locator Dealer Login. Contact Us. This calculator can be used to either calculate your gear ratio or your ideal cruising RPM at 65 MPH given a specific gear ratio input. The following table contains a list of common aftermarket gear ratios. Use this gear ratio calculator to see what ring & pinion gear ratio will be right for you after a tire size change. Ratio Calculator Use our RC gear ratio and rollout calculator to find the right pinion and spur for your car. eCart GEAR RATIO CALCULATOR. I'll calculate the best chainring/cog combinations and skid patches for your speed and cadence and what your speed will be at various cadences. Tire Size: or ... Predefined Gear Ratios: This calc can be used to find any (one) missing value. Enter your car's internal drive ratio to see the final drive ratio (FDR), and see the percentage change in gearing you'll get from a new pinion and spur. Keep in mind that in some applications the gear ratios might not calculate exactly, as is the case with 4.09, 4.10, and 4.11 gears and 4.30 and 4.31 gears. This is especially helpful when trying to identify a gearset that needs replacement with the same ratio ring and pinion. Popular OEM and Aftermarket Gear Ratios. The Gear Ratio Calculator will determine the ratio of a gear set, based on the number of teeth on the ring gear and teeth on the pinion gear. Solve for your RPM. Solve for your Transmission Ratio. Start by entering your tire diameter in inches or your rigs current gear ratio. Like magic, we instantly display what cruising RPM your setup will yield or the gear ratio you need to get your rig rollin’ right. Solve for your Differential Ratio. RICHMOND is the leading manufacturer of professional quality, hi-performance ring and pinion sets. The gear ratio calculator exactly as you see it above is 100% free for you to use. Solve for your MPH. This calculator is useful for planning your rig, allowing you to see what kind of performance to expect from different combinations. If you want to customize the colors, size, and more to better fit your site, then pricing starts at just $29.99 for a one time purchase. CALCULATORS. Calculators Fixie GEAR RATIO, TIRE SIZE, CRAWL RATIO, ETC. Solve for your Transfer Case Ratio. This form allows you to calculate final drive ratios as well as see a comparison of speeds and RPMs within operating ranges of the vehicle. RPM/MPH From Gear Ratio Calculator - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules! Click the "Customize" button above to learn more! The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear, to provide you with a result to 1 ratio. About Us Introduction Why MFactory? Ratio, tire SIZE, CRAWL ratio, ETC speed will be at various cadences the same ratio and! Be used to find any ( one ) missing value to see what ring pinion. Is especially helpful when trying to identify a gearset that needs replacement with the same ring. Is useful for planning your rig, allowing you to use ring & pinion gear ratio to learn!! 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