Mustang gear ratio calculator. 55 rear gear should be no worries.

Mustang gear ratio calculator When I took the wrong gear out it looked like the teeth were mashed and had sort of been rolling around. 67 and then enter your rear gear you want to check under final drive----- Post added at 07:17 PM ----- Previous post was at 07:13 PM ----- Mar 26, 2021 · A rear gear ratio that's popular is 3. 67 which is a whopping drop in gear ratio. 73 rear end gear. When i figure the gear ratio out for each gear I come up as follows. 00 rear gear at 70 mph. [/QUOTE] Forum, correct me if I am wrong, a 3. In the menu bar, select Edit > Gear/Tire Wizard . The general standard for a good all-around street/strip rear gear ratio would be 3. Jun 21, 2004 · Fox 5. But man when you stand on it, especially now with the tune an CAI, it rips pretty good! Jul 9, 2023 · I need some help with identifying gear ratios. A subreddit dedicated to the R53 Mini Cooper. 05 Revs/Mile for my car • The speedometer gear ratio = drive gear / driven gear = 7/19 = 0. 1998 5. 68 Jan 13, 2023 · Source: forums. Nov 29, 1999 · I made a spread sheet with my tire ht. 31's are too low. 675. A ratio like 3:1 means the input gear rotates three times for every single rotation of the output gear. Ran a 3:40 for a season and the top speed was great, but lost the acceleration out of the apex. Feb 8, 2023 · BUT thats NOT the only wide ratio direct drive available- there are also 3. May 6, 2021 · It's the first time that the 10R80 Trans gearing ratio is actually listed in any Mustang Owner's manual from 2018 forward. I saw my highway mileage go from 13 to 19 mpg with the T-5. Another way to find out is to use a gear calculator so you know that RPMs you will turn for the different speeds with the different gear choices. 3. Input your stock and new tires sizes along with your original gear ratio. 00 5th gear 0. Oct 16, 2017 · The 6 speed has nothing to do with redline wimps. A long time ago, I used to have link to a site that compared tire height, rear end gear ratios, and rpm's. 18:1 reverse 2. 9" tire height (285/35/19). ) Tire size The best calibrate the speedometer is to take it for a drive. 80 or 3. 41, 4th-1. (size of rear end does not matter) 3. Jul 21, 2003 · Anyway, THIS online RPM at MPH Calculator returns results I'm happy with (my tire diameter is 24. 46:1, and 3rd is 1:1 Jun 18, 2010 · It has 3 speeds and reverse, the gear ratios are: 2. 80's and am looking for a little more performance. 55 rear Factor = the difference, in torque/RPM in a given transmission gear and speed Standard Crank; Alfine Hub. The first thing to know is how many revolutions the tires make in one mile. 55 rear gear, the overall First-gear ratio is 3. 46 (BTR unit. 10 gear provided the closest match to stock. Apr 22, 2021 · I've run gear ratios from 2. 50” diameter tires (215/60R14 Cragar wheels) Dec 15, 2018 · I DEFINITELY need to upgrade to a posi of some sort - looking for anyone who has a good combo, and your thoughts on axle and gear ratio. 67) and speed to see what my RPM's would change to mainly at 70-80mph and ended up going with 3. 46:1, 2nd is 1. Lots of things to consider here. That being said: 3. 73 gears Mar 23, 2010 · Classic Mustang Forums. Use this calculator to crunch the numbers and figure out which rear gears would be best for your mustang’s Oct 16, 2003 · there is a 3. 2 / 277. All you need to do is input the tire diameter and miles-per-hour ground speed and it will provide you with the RPM in each gear and the RPM spread for Apr 7, 2021 · Pulled the driven gear off the cable tonight and it has 17 teeth. ) or 3. 2 / 74. 73 gears make. Sold 2016 Premium Mustang GT Manual Trans. Just change the rear ratio settings and the tire size. 9 inches, 4th gear trans ratio is 1:1). 56 on the street behind non overdrive and overdrive transmissions in vintage Mustangs. 6x:1). 55 Gear Set 3. 68 overdrive ratio x 3. 08 18 Tooth LRS-17271H 3. 95 1st gear or, as @Maxum96 stated, TKX with 2. 95 first gear works well with a 3. The engine is a 289 two barrel with C4 transmission and 2. 25 rear gears behind a wide ratio trans. 4th Gear. Top speed at 7000rpm in each gear is 49. 32 2nd - 1. 2L V8 automatics) 2. Mine says 3L31 for my limited slip 3. 0 stick shift and am deciding on the rear-end gears. 25-. A 16-tooth, left helix driven gear with orange tip is on the left. This calculator will provide the speed of the vehicle based on transmission gear ratio, engine RPM, tire height, and the ring gear and pinion gear ratio in the rear end axle differential housing. vintage-mustang. Calculate RPM for Given Speed(MPH), Rear Gear Ratio, and Trans Gear Ratio 3725 Harry S. 82/2. 1st. Or, the un-simplified long version: mph X 12 (inches per foot) X 5280 (feet per mile) X axle gear ratio X transmission gear ratio Luckily, Late Model Restoration has put together this Mustang gear ratio to RPM chart to help identify which gears your Stang may have installed. Dec 12, 2020 · The 3. 00; 5th 0. 73 Gear ratio. 5: Modest Molly Here's a picture of all three types. C4, so assuming 8 drive teeth, 2. It is REALLY slick. Plus you would have overdrive for the highway. honestly im not versed enough in this to even tell if it made a difference, and also there is snow everywhere on the roads so this is also affecting things. 73 mph/gear @ 6800 rpm's 1st = 54 mph 2nd = 82 mph 3rd = 118 mph 4th Jan 2, 2019 · PP is suited for road course. 89, 3. No complaints on acceleration or hiway cruising. Ford and Mustang toploader 4 speed manual transmission, RUG-AV1 Miles per hour charts for toploader close and wide ratio MPH chart for toploader, 3. 50 which ever within a tooth. You will notice a higher rpm on the highway but nothing that cause the engine to explode. May 6, 2015 · The other is the gear ratio. Scroll through the list of popular transmissions to find yours. 0, & 2. May 9, 2024 · Alright boys, I've got a centrifugal supercharger, MT82, with the 3. 69 3rd - 1. 0 gear for friendly freeway cruising, a lower first gear would get you away from stoplights quicker. Speedometer Gear Calculator and Charts - TCI® Auto You may have to get under the car and looking through the hole in the transmission where the speedo cable attaches and count the number of teeth on the drive Jun 9, 2024 · Finding the correct speedo gear depends on: 1. 11 rear gear ratio you'll be spinning 2,350rpm at 70mph. 66 first gear or 2. 95 T5 and wanted every ounce of performance I’d go with a 3. 35 first gear ratio and a 3. 5: 222. 11 gears might be a bit much. For example with the conversion calculator linked above you’ll only be at 1,790 rpm with a 3. So, if you wanted to keep a 2. We also encourage posts of the r50 (2002-2005 base cooper) and the r52 (2005-2008 Convertible Cooper). If you had a 2. Dec 9, 2014 · The final drive ratios are then calculated based on all currently available rear end gear ratios for the S550 Mustang (for all transmissions) and display the gear ratio spread between each shift. 1967, 289, C4, 23. ) Is transmission manual or automatic (exact model of transmission does not matter) 2. Aug 24, 2022 · It is the T-5z with a 2. I've tried 4 or 5 different gear calculators and they all say it should be a 17 tooth driven gear. 89. 73 rear end now, and that combined with the 2. The rear diff is currently a 3. 50:1. The data tag on the rear-end should tell you more. 87 1st gear that work well with lower rearend gear ratios. Jul 19, 2016 · If you gear it too high with those tires, the engine will fall flat dead on the highway in 4th gear. This is on my 69 Mach 1. General Details; Year: 2010: Make: Jun 22, 2019 · A 24 tooth speedometer gear will just get chewed up. It then displays the gear ratio spread between each shift. 55 ratio is too long for my track- on a warm day, I’m in 3rd for all except one slow speed corner in 2nd. 73 gears. 00:1 rear axle gear with your 4R70W: M. The Gear and Speed Calculator takes tire size, gear ratio, transmission ratios (up to 8 speeds) and engine RPM to find speeds in gears, top speeds, shift point drop. 54 Aug 9, 2024 · (first gear x axle ratio) will get you away from a stop with out being too short or too long. 35 First gear and a 3. I would like to know if this is the correct rear axle that is on the car… ? and according to the 1966 workshop manual it would be an 8. The only confusing part is, it's listed under "Mach 1" titling and it's the only place in the entire manual the 10R80 trans gear ratios and the MT82 trans gear ratios are laid out. Mechanical Efficiency : The percentage of power successfully transmitted through the gear system, accounting for losses due to friction and other factors. 11) * Common Drive Gear Teeth: C4, C6, or FMX: 8 Teeth (Some 429 Police Calculate your top end speed and finish line MPH for any given combination of gear ratio and tire diameter (Currently based on stock T5 transmission gear ratios): Gear Ratio Desired: -- Select -- 2. 98:1) launch puts the starting line ratio at 10. 15 is recommended for a easy cruiser not really interested in the fastest acceleration. I test drove a 3. Visual RPM, Speed, and Gear Ratio Calculator The ratio of driven gear teeth to driving gear teeth, determining the mechanical advantage of the system. 66 has a closer ratio spread. Aug 14, 2008 · Is there an easy way to figure out what speedometer gear I need? I've changed tire size and rear end gearing. Having ran all 4 gear sets, a 3:55 is a great performance gear, where a 3:25 is a great driving/cruising gear. Use the Aspect Ratio calculator below if you do not know your tire height. 31 gear, and both T56 options with different rear gear ratios. 95; 2nd 1. Oct 15, 2024 · Gear ratio defines the relationship between the rotations of two gears. 75, 2nd-2. I am looking for a calculator or an equation that will determine based on gear ratio, engine HP (not at wheels), and engine torque (not at wheels) how fast I will get from 0-60. I quite like my T-5z with 3. 00 and . Love the combo. Lowering the rear end gear ratio (to a point) will improve the power factor ratio, but as already mentioned, will take away from the effectiveness of the 1st gear ratio if it's too low. 114th Terrace. 01/2. Jul 31, 2024 · Following our gear ratio equation, we can say that this gear train has a gear ratio of 40:10, 40/10, or simply 4/1 (or 4). straight from 5. Mar 28, 2018 · Over drive in the AOD is . Jan 1, 2025 · Speedometer Driven Gear Calculator at The Definitive 1967 - 1973 Mercury Cougar Parts Source Speedometer Driven Gear Calculator for 1967 - 1973 Mercury Cougars and Fords Mustangs 2020 Ford Mustang Shelby GT500 Gear Ratios Calculate speed by changing tire & wheel sizes, final drive, gear ratios, and engine RPM. 84 / 2. Mar 25, 2008 · Also, if you use the calculator posted above, plug in the info (stock tire size of 225/60-15, 2000 RPM, 65 MPH, and the '85-89 T5 5th gear), it gives you a ratio of 3. 31. 19 behind your C-4. Understanding and calculating the gear ratio is crucial as it significantly influences your vehicle's acceleration, fuel efficiency, and overall performance. Try this one out. 63 OD can be a bit much. Mustang 5. 601264 revs per mile for my car Nov 20, 2008 · Hi I'm trying to determine what's a good rear gear ratio for my stock 289 w/T-10. Aug 28, 2018 · Perfectly stated. 55’s. Lenexa, KS 66215. With your sister's 24 " diameter tires and the 3. to figure out your tire ht. 35 first gear. Saint Charles, MO 63301 Internet Sales: 636-352-2045 Jun 22, 2004 · Says 80. This gear ratio means that the input gear would need to rotate 4 full turns for the output gear to complete one full rotation. 72 to 3. VMP Gen2r, 79mm Pulley, Twin 68mm TB, PMAS 120, Triple Pass/Dual Fan HE, Whipple High Flow HE Pump, Fore Stage 2, VMP Fuel Rails w/1000cc Injectors, E85, Boundary OPG and CS, Kooks 1-7/8” LTH, Exedy Hyper Twin, TR6060 w/MGW, DSS Aluminum Driveshaft, Lots of BMR and Dec 25, 2018 · The MT82 6 speed has different gear ratios depending on which model year you're looking at. 73 in my 8. This concept is widely used in systems like bikes, vehicles, and machinery. Put the 3:55 back in and super happy. Mar 10, 2000 · Mustang Forums. 55 gear, will be the quickest to the 660/1320’ mark. Enter gear and differentical ratios and automaticly calculates how fast the car drives while selected gears. 63 Feb 9, 2022 · Now if all of the values above are the same except that you switch out the rear end ratio to a 3. it has settings for both the close and wide ratio t-56, 3 different Tremac 5 speeds, Muncie, Ford top loader and the Hemi A-833 4 speed. I just bought the car & it has a new TCI Streetfighter C4 & the tire size after using the charts is 24. 0 Mustang Tech . You could get away with a 3. 9/10 times, a 2nd gear launch when equipped with a 3. 35 first gear, that change would be like changing your rear end to a 4. Just enter the data as described below and hit "Calculate". When tuning GM vehicles, the Gear/Tire Wizard can be used to calibrate the speedometer and scale the transmission tables to adjust for a new gear ratio or tire size. 80, 3. 19" Wheels. Gear Ratio Calculator Want an idea what the gear ratio is in your car? This tool assumes you have no overdrive and an accurate speedometer. 68 5th gear. 35 1st gear mated to a 3. So, all they did was add another gear between 1 and 4 to keep the RPMs lower between shifts and improve gas Apr 22, 2022 · This is done by adjusting the transmission driven to drive gear ratio on the speed cable to match the tire size and rear axle gear ratio of the car. 79 rear, 215/65r15 tires. 00 Differential and with 25 inch tires diameter Sep 24, 2011 · The cluster gear has 17 teeth for 1st, 19t for 2nd. Sold 2018 Premium Mustang GT. Wheel Circumference (MM) Feb 10, 2008 · here ya go. You may be able to see what gear your transmission has by looking in the hole where the speedometer cable goes with a light. 373 = 974. Procharger. There are tire/gear/mph calculators all over the net so you can run through various options and see what your cruise at 65-70 rpms come out to. gear 2. TOP SPEED CALCULATOR: Calculate your top end speed and finish line MPH for any given combination of gear ratio and tire diameter (Currently based on stock T5 transmission gear ratios): May 8, 2020 · Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this Mustang Speedometer Gear Calculator! The formula used for determining RPM given MPH, axle gear ratio, transmission gear ratio, and tire size, if you want to check my math, is the following: mph X 336. Your rear axle gears will make first gear (with the T5) feel like a granny gear. 50 ratios. 08, 4. 68-. On to the calculator. Dec 21, 2020 · Check out Alf's Mustang Parts on Amazon www. 10:1 would be much better. 73 rear gear from the factory. Higher number ratio is a higher gear, equals higher engine RPM for the same speed, but faster in acceleration. doesn't have 2. 99 3rd gear 1. 55, 3. 55 = 11. Feb 24, 2011 · If you do the math, the deep first gear in the MT82 + 3. 31, 3. As an example: Using the gear ratios from the 11-17 MT82 and a tire size of 235/50/18 on the base GT: 3. Tire Diameter (find tire diameter from tire size) Ever wonder what your axle gear ratio is? Want to find what axle gear ratio is necessary to achieve a given rpm at highway speed with a particular size tire? Gear Ratio (find gear ratio from speed, rpm and tire diameter) May 8, 2020 · Mustang Speedometer Gear Calculator. 22 RPM: Gear Ratio Speed = 1000 / 4. torque capacity •Gear ratios: 1st 2. ProCharger (California) Branch Office Jul 23, 2015 · try this one I played around with it and it seems pretty close Apexgarage speed calculator you need to know the gear rartio of the trans I believe they are 4. amazon. 80 for rear gear ratio, and I don't Oct 17, 2010 · I am ready to order a 2011 5. It Hello, I have to overhaul a 1966 Mustang Fastback K Code 4 speed manual rear axle,,, the code on the rear axle plate is: WCZ-S / 3. Nov 30, 2020 · That calculator is for a 4spd transmission like a Toploader with a 1:1 4th gear ratio and not for a T5 that will have a . If you prefer straight line acceleration the diff you have is best for you. ) (and Ford Mustang) Speedometer Gear Calculator. 27 Gear Set 3. com Ring & Pinion Speedo Gear Part Number 1983-89 Mustang Manual 5-Speed 3. 20 rear gear in a 5 liter foxbody with T5 transmission. The current 3. 50:1 for fun and hwy. 33 4th gear 1. 10R80, Ruby Red 3. A gear ratio of 3. 10 Gear Set 4. So, a T5 with a 3. 80 rear will yield a very short 1st gear. 1 / 106. 90 to 1 and something in the neighborhood of 3. In the 80s, a 5 speed had 4th gear at 1:1 and 5th was . 55 and 3. Stock Gear Ratio 1987-1993 GT Does anyone know all the stock gear ratios that were available for 1987-1993 5. redline Jul 11, 2018 · Once you know all these numbers, there are online calculators that you can use to determine which speedometer gear you need. 27 and 2. 2010 Ford Mustang Shelby GT500 Gear Ratios Calculate speed by changing tire & wheel sizes, final drive, gear ratios, and engine RPM. 5" axle. 6:1 with 3. Using a C4 vs 4R70W example, the 1st gear ratios are 2. Use our simple Gear Ratio Calculator to quickly find the correct gear ratio for your ring and pinion gear set. Around 19% difference. 368 X 2648. 50 rear gear IMO is a nice middle ground between the two with the stock 3. 73 Gear Set 3. I was planning to order the 3. Saves gas on highway. Go to this website if you have a T5 and calculate it out to see what you want. Wide ratio 4 speed here with 2. 63 it says I travel 819 revoltions per mile. Aug 23, 2002 · You might want to consider a T-5 in addition to, or instead of a rear end change. Yes, the jump to 0. Thank you! Nov 5, 2015 · Ford Mustang GT 1996-2004: Gear Ratio Information While many enthusiasts are concerned with horsepower and torque numbers, thoughts of proper gearing are often set aside. Mustang Transmission Gear Ratio Calculator 1st 2nd 3rd 4th Trans Type Your Top Speed at Redline Tire Circ Gear Ratio 5th (OD) By Scott Wieduwilt MPH proposed center Apr 21, 2007 · (. Phone: (913) 338-2886 Fax: (913) 338-2879. gear ratio of the transmission. If you do a lot of highway driving you may want to keep that 3. 5 / 180. 55/current ratio = "factor" for 3. Here are the speeds for different Rear Gear Options on the MT82 6-speed manual. Feb 1, 2012 · It's not the gear ratio selection itself that is killing her mileage - it's the gear ratio/tire diameter combination. 45:1, which is an available ratio for a 7. Somehow it still seemed to rotate ok. With my taller 31 " diameter tires, and a 4. Jun 4, 2024 · Find out which rear gear ratio is best for your Mustang by using the Engine RPM Calculator right here in the CJ’s Resource Center. With my wheel and tire setup, redline for these gears is at: 1st: 52mph 2nd: 79mph 3rd: 117mph 4th: 167mph And I've got an issue when it comes to highway pulls in Mexico starting from 60-70mph. The 3,40 od gear with the . The Gear Ratio Calculator is an essential tool to precisely determine the gear ratio, RPM, tire diameter, or MPH by inputting known values. Mar 26, 2021 · 2019 Kona Blue Mustang GT Premium 10R80 2021 Iconic Silver Mach I 700A, Tremec 6 speed, Elite package, Nav, Red calipers, Performance wheels, Car cover. And, the are overdrive 4 speeds availanle also. See What gear ratio do I need in FAQ for a discussion on choosing a ratio. 0, fitech efi, holley in tank returnless pump Mar 14, 2014 · from what I can tell Mustangs with an 8” gear only came in 2. What ratio would suit me best for both street racing and highway driving. Individual Input Speed (RPM) Gear Ratio Gear Ratio Speed (RPM) Calculation Method; Speedy Steve: 1000 RPM: 4. 93,1. 97 was the closest match to stock but the 2. May 28, 2019 · 1979-1993 (Foxbody) Mustang Stock Gear Ratios 1994-1998 (SN95) Mustang Stock Gear Ratios 1999-2004 (New Edge) Mustang Stock Gear Ratios 2005-2009 (S197) Mustang Stock Gear Ratios 2010-2014 (S197) Mustang Stock Gear Ratios* 2015-2017 (S550) Mustang Stock Gear Ratios 2018 (S550 Mustang Stock Gear Ratios; 2. That gear will not tax the motor very hard. Using this chart is easy! Simply check your RPM reading at 65mph and compare it to the chart below. 0L GT's from the factory? What Sep 21, 2003 · When picking a driven/drive gear ratio to match the tire and rear axle gear ratio you have a choice of drive gears and driven gears. What I'm looking for is "What rear-end ratio is going to give me good 'get-up-and-go', but still allow me to drive at 70 MPH on the freeway, and not let the engine sustain high RPM's for extended periods of Enter your tire height here. (For use to plug into the RPM calculator) The c4's 1st gear is 2. Tire size is P195/75R14. If I Dec 31, 2009 · (see my earlier post, did not realize the T5 had two diff first gear ratios) So a stock T5 has 3. 5 could be considered overkill for the street. 55 rear gears, and take it for a spin. Have any of MustangII. PaladinMicro (Calculators > How Fast/Each Gear (7k)) 2011 Mustang T-56 Magnum Conversion and Mcleod RXT Upgrade - StangTV. Ratio. This includes the Mini Cooper S from 2002-2006. 31's is similar to a 4. 70 gear with a slightly higher cruising rpm. Sources for info on the Wild E Coyote project also linked. 2nd gear (2. 08 Gear Set 3. 00:1 rear end ratio = 2. 44 which would be the overall gear ratio with the new tire size. 25, 4. 25 rear gear but the od is ,62. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Select the value you want to solve for. 46:1 1st gear 1. Classic Tech Drive Gear Teeth - Number of teeth on the transmission side of things Rear End Ratio - Rear Gear Ratio (3. 166 I cannot find these gear ratio numbers anywhere in my books or web for a borg-warner t10. 52/2. 45 (ZF unit. LSG Feb 7, 2014 · MT82 has a 1st gear ratio of 3. 26" is about average for F60-15's or 245-60-15's. 68 od not so much a 2. The 2005-10 internal gear set options are as followed- 1st-3. com. 52,1. Also consider the type of driving you do on a regular basis before changing gear ratios. Sold Calculate Speed(MPH Km/H) for given RPM, Rear Gear Ratio and Trans Gear Ratio Wallace Racing - Calculate Speed for given RPM, Rear Gear Ratio and Trans Gear Ratio 1/26/2025 04:21:54 PM May 11, 2004 · Hey guys I need some help. 22 ratio, my RPM at 70 mph calculates to 3202 - nearly identical! Jul 22, 2013 · Calculations were done using the calculator at PaladinMicro based on 275-40/19s, link below. Feb 14, 2024 · The gear ratio choice is super dependent on the T5 first gear ratio. gt7tuningcalculator. Jan 2, 2005 · You would need a nice tall tire with a 255/50r16 stock pony wheel tires and 3. General Details; Year: 2020: Make: Jan 13, 2022 · 65 mustang coupe, 306, 10. 8:1 rear end ratio. ) Rear Tire Size: 275/60-15. 73 The stock axle ratio in a Mustang can vary anywhere from 2. Then simply press the run button. Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine rpm for best performance. 73 rear gear ratio, you'll get up to about 2,150rpm at 70mph. ) Tire Height - In Inches, Use The Gear Calculator or Tire Size Calculator Speedo Revs/Mile - Number of RPM the speedometer needs to turn at 60mph You can hit the SAMPLE button to see how some typical calculations will look. 25 gears wouldn't be correct for the Mustang but they would be period correct. 3rd Gear. 00, 5th-. Jun 19, 2010 · I am finishing a restoration I srarted 26 years ago on 1966 Mustang and I don't have a clue as to which speedometer driven gear I need as to the number of teeth and whether it should be a right hand or left hand rotation. I plotted the overall ratios for the MT82 and stock 3. RPM-6th Gear Help on: Top speed for 49 sprocket combinations; Adjust RPM & Gear Help on: Change RPM and Gear in sprocket combinations matrix; Resulting RPM. P. Gear for how you drive most of the time. Calculate different ratios and how they affect RPM at cruising speed or top speed. 00 and 3. 92 ratios available. I do light street racing and I’m afraid if I jump to high that I’ll loose that take off power. I didnt mind it with my T5(rip) but the 2. 35,1. Also calculated is the new gearing you would need in order to return back to your original gear ratio when going to a bigger or smaller tire. com Jul 7, 2020 · Ok , so after a lot of help on a different thread about gear ratios where I was not going to be happy with the close ratio top loader I was putting in to replace my 3 speed, I sold the close ratio and purchased a wide ratio with the hurst shifter and linkage, supposed to have been rebuilt and does look like it was , with the exception of the speedo drive gear has some smears on it like someone Aug 1, 2019 · Your 8” rear will hold up just fine, but as others have said, those 4. 73 Gear Set 4. I’ve searched and searched, but something isn’t adding up for me. Find all of the gear ratios available for your vehicle in our Application Guides. 29,1. Dec 6, 2014 · The sheet calculates final drive ratio based on all the currently available rear end gear ratios for the S550 mustang (for all transmissions). Classic Mustang Dataplate Decoder Ford Mustang: Mustang Tech: Calculators & Decoders: RPM Calculator Aug 25, 2006 · If your Mustang has a 3. 17,2. 11, etc. Unless driven gears with more than 45 teeth and / or drive gears with fewer than 15 teeth become available, it will be impossible without using a ratio adapter to have an accurate speedometer with rear end gear ratios lower (higher numerically) than 4. Oct 30, 2018 · The T56 comes with two options for ratio sets 2. 04:1 final drive ratio). 93 rear gear ratio then you'll hit 70mph at 2,250rpm and lastly, if you did a 4. 73 to 1, may be more suitable, judging by your post. My car is a 65 FB C4 Trans 347, EFI, probably in the mid-high 300HP range (not dynoed) It currently has an 8" rear end in it, with the tallest ratio2. Vehicle performance can be greatly improved by optimizing gearing for your intended application. 19, 3rd-1. You'll actaully enjoy the change. Need help? Our gear and axle experts will be happy to assist at (800) 510-0950 Aug 28, 2010 · The ability to option for another offered ratio was limited to manual transmissions and coupes only. Looks like the only smaller gear I can go to is a 16 tooth. 45 that came in the mustang II or 3. Today, the 5th gear is 1:1 and 6th is the . Checkout this site to calculate which one you need. put in tire size. Jul 24, 2010 · NOTE: the tire diameter calculator included is for reference. 31 rearend. This is arguably the best “all-around” gear for the fox body Mustang, it won’t destroy your MPG and your cruising RPM @ 60MPH is just under 2000 and potentially out of “drone noise city”. I have the 3. 50 SKD980. 73 and several questions occured to me about how much of a difference the 3. 27 19 Tooth LRS-17271A Your vehicle will probably run at different RPM’s than those you calculate. com/shops/mustangalfThings I used in this video. 31 rear axle ratio for quicker off-the-line acceleration; Mustang GT coupe front and rear stabilizer bars; Mustang GT front struts and rear shocks/springs; Shelby GT500 rear lower control arm; Unique 19-inch wheels (dead giveaway) Pirelli performance tires for improved grip; Mustang GT front and rear brake calipers with Performance Friction (and Ford Mustang) Speedometer Gear Calculator. , AOD overdrive ratio (0. Lets say it reads 55mph when you are really doing 60 and you have a 18T gear. 27 X 815 = 2665. 46 and 2. 73:1 or 4. Don't forget, tire size also has an impact on your final speed/rpm. 34,1. The drive gear is inside the transmission and the tail housing must be removed to get at it. Summit, cjpp, jegs, etc. 6x:!. My WC T5 specs are as follows: •Heavy-duty “World Class” T-5 5-speed manual transmission with short-throw shifter •330 ft. 1. No optional ratios. I had an 18 tooth laying around and that made it even slower. Again, any feedback is appreciated. 7x:1 (or . I had a 23 tooth gear (which was completely wrong) and the speedo was 11% slow with 3. 5th Gear. Click "Calculate" to find your new effective gear ratio and the gear ratio needed to return your vehicle back to stock gearing. 84: 2. 73. 2nd Gear. 71967 Jul 7, 2015 · The gear you need will depend on several factors like rear end ratio and tire size. 11) * Common Drive Gear Teeth: C4, C6, or FMX: 8 Teeth (Some 429 Police May 13, 2024 · My 3:55 was a very good all around gear, for acceleration and top gear speed. Anything greater than 9. 56 Gear Set Mar 16, 2024 · So I’m about to order a new set of rear gear and pinion. 29 4th - 1. 67:1 thereby dropping the RPMs when it shifts into this 'overdrive' gear that is basically the definition of overdrive. 1st gear 3. Mustangtek gear ratio calculator dashboard. 50 to 1. I think the mid 60’s Fairlanes had a 8”, 3. co. 75″ axle and not a 9″…. If you like twisties you want a torsen. Use the calc. 2 3. You will still have to put that value into the tire diameter cell that is darker blue. ? May 31, 2019 · Gear end ratio is the ratio of input revolutions to wheel revolutions; Differential gears do not change power levels, but rather, manipulate what power and torque is available at certain RPM; Upgrading rear gears is dependent on the transmission gear ratio; Choosing a rear gear is decided by the type of Mustang and the type of transmission May 13, 2006 · "Quicksilver"1965 Mustang Fastback 347/450hp FRPP crate engine,G Force T5 try using this calculator. As has been said, it depends if the stock rear-end is still on the car. Here is an explanation of the calculations done by the calculator above, along with two examples: • The driveshaft revolves at a rate = Differential Gear Ratio X revs per mile = 3. Changing the rear gear ratio to 3. 89,. The gear you wish to install will work fine witht the stock setup. 45 (ZF unit from approximately car number 2977 on. 117- 2nd gear 1. MPH. 00:1 3rd gear A 1:1 gear ratio is not overdrive, overdrive is lower than 1:1 such as and AOD where the 4th gear is 0. 27/1. Seems to work well in autocrossing as I pretty much stay in 1 gear. 29/1. 79:1, I think. 73 gears and changed it to 3. Default speed Help on: Calculate RPM per gear at 50 Mph or Km/h in 3 setups; Change Speed Help on: Calculate RPM per gear at particular speed in 3 setups; Chain / Belt Geom. 55. 73:1 to 3. Jan 10, 2022 · You can do the math on this; but first you need to know what rear gear ratio you have now. Using the calculator, we inputted a much lower rear gear, one that matches up better with the higher rpm capabilities of modern engines like GM LS and LT V8s, the Ford Modular and Coyote V8s, and Gen III/IV Hemi engines. 1979 - 1995 (Fox, SN95. 0 Dec 14, 2018 · This means that if you're upgrading or replacing a transmission in an S197 Mustang, you'll need to pay close attention to how the transmission is bolted to the body and how the shifter is set up. It'll get the car outa the hole and the revs will be near 3,000 rpms at 70 mph! I wouldn't suggest anything steeper than 3. Source: www. 55 axle, Safe and smart, 401A, 20" wheels. 73 gears; 3. The 2. 87 first in my TKO makes for a much more usable first gear. 35 first gear works well with a 2. /lbs. Dec 8, 2015 · I am piggy backing off a question that was asked in the roadster section about selecting the right gear ratios. 95 (if memory serves me) 1st gear ratio is about the highest I would go for a daily driver. 89 gears. It has everything to do with CAFE standards and improved mileage. 73:1, depending on year, model and additional options selected when the vehicle was originally Hello This picture shown the oem Final gear ratio, we replaced the differential ratio from 2. 4 compression, 180cc homeported Chinese heads, funnel web, t5z, 4. 73, i changed the number from VCM editor, but still the speedometer not correct, i think we should change the V/N Speed but i dont know the correct number for it, any help for V/N speed and fix the speedometer . 47/1. In some ways, in the little daily driving I've done with it, first gear and 3. 46/1. Nov 9, 2020 · How do I calculate what I’d be doing at 55 and 65 mph if I change to the above ratios. If you went up to a 3. 08/1. 0 - MT82 - 2. The transmission button simply shows some common transmission gear ratios. Mar 29, 2023 · The 10R80 cars prove this, with the matching of a 3. 80 rear gear but the . 15 axle turns approx 1750 at 70. Is there much difference between 4:11 and 3:89. 1st Gear. 00. 46:1 2nd gear 1. However, 5th gear isn't a performance gear, per se, rather it's for economy. The standards for the Superformance Brock Coupe are: Transmission: Tremec T-56 6-speed (Mustang SVT) Rear Axle Ratio: 3. I have a pretty much stock 302 from an 88 mustang with an edlebrock intake and holley 4150 carb. 73 rear axle ratio. I know there are other factors that will determine it but I just want a general estimate The gear ratio calculator is a bonus for all to enjoy giving you the ultimate ratio for the power band of every car! Download a copy and get ahead! www. A 17-tooth, right helix driven gear in green is on the right. uk May 27, 2015 · If you would like to check out other rear axle ratios comparitively, and what rpm you will be running at different speeds, check out this calculator: Visual RPM, Speed, and Gear Ratio Calculator If my information is correct, a close-ratio toploader has the following gear ratios: 1st - 2. 35:1 first gear. For the Tire field, enter your tire diameter in inches. 35 first paired with a 3. Jul 23, 2009 · To highlight the effect of the lower 1st and higher 4th gears, you can make your own comparative multiplier to see how your car would react to an equivalent rear-gear change instead. 72 od is a good place to be. ProCharger (Kansas City) Company Headquarters. 25 ratio was available for the 65/66 Mustang? May 9, 2013 · 1967 - 1973 Mercury Cougar (and Ford Mustang) Speedometer Gear Calculator: But a couple of things I noticed. 30 Gear Set 4. A 6-tooth, pink drive gear is in the middle. . 25 ratio, the calculator does show 3185 RPM at 70 mph. 72, & Reverse-3. So will a 23 tooth one. americanmuscle. Apr 11, 2020 · 3. 46 = 1. Plug in your information in Vehicle Speed Calculator and it will compute your speed in each gear. 10:1, unless 27 inch or larger tires are installed. 35 x 3. All calculations done on a 26. Presuming that your rear tires are around 26 inches, to run 75 at around 2500 rpms out on the highway puts you between a 3. 154 So, let's say you have a 3. 368 for my car Oct 20, 2023 · • The speedometer gear ratio = drive gear / driven gear = 7/19 = 0. 73/current ratio = "factor" for 3. Mar 7, 2012 · To summarize, the MT82 has an extra street gear, gears 1-5 are non-overdrive, 6th gear is the only overdrive gear. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed in each forward gear. Get the right speedometer gear for your 1979-98 Mustang based off of rear gear ratio & tire size! No guessing with this Mustang Speedometer Gear Calculator! Apr 18, 2011 · A 3. Truman Blvd. 79 to 4. 8", and the 9" I am building will have 3. Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine RPM for best performance. Jun 26, 2008 · I found this online calculator to help me decide: Gear/Speed Calculator Link Bashed is correct on the final drive ratio on the AOD, it's 0. 578 - 3rd 1. ) Rear end gear ratio. I'm tired of my 2. 94; 3rd 1. This calculator assumes you know the vehicle’s transmission ratio. 79 gears. T5 tranny with the stock gearing which is listed as 3. I tried a few different charts & I assume I have a 7 drive gear, so some says 20 teeth driven gear to 23. 26 (78-82 4. 25 gear set available? If so, the 3. Looked at driven gear on speedomter cable now & it's an 18. In fact, if you wanted almost the exact feel of what you'd be getting, just go to your local Ford dealer, find a GT manual with 3. first then plug in the numbers, kinda fun to play with, I checked to see what I'd be turning in 3rd at the drags at 100mph Feb 1, 2014 · i found a thread stating to change the final drive gear ratio so i tried, i went from my stock 3. com) '68 GT Jan 15, 2010 · Here's a couple of links that should help with the rear-end question and what gear ratio you want. Jun 30, 2023 · Lower number ratio is a lower gear, equals higher speed for the same engine RPM, slower in acceleration. 56 gears in a 9 inch locker Gear Ratio Calculator (tremec. 14801 W. Thanks. It’s also a good middle-ground gear ratio that will work with a lot of possible future drivetrain modifications. all of the transmissions we sell have 7 teeth on the drive gear and you want to calculate the driven gear: Aug 28, 2020 · In fifth gear at 2,200 rpm you’re already going 76 mph. and 24t for 3rd. Org Calculators Compression Ratio. Counting the shaft turns as mentioned works good. 0resto. The 4. Includes a rich graphical interface to visulize the output. 6 / 136. 29 first gear and an OEM T-5 has a 3. 68. Ruby Red, Cashmere Interior, 401A. 1524 X final drive ratio ÷ tire diameter. 368 for my car • The VSS shaft revolves at a rate = speedometer gear ratio X driveshaft revs per mile = 0. To calculate this, measure the diameter of your tires. Sep 18, 2020 · We figure out how many gear teeth will be right for your application by using a calculation of how many drive teeth are in the transmission, what the tire diameter is, and what the axle ratio is. I'm running 245/60R15 tires and 3. 97 first gear. 35 2nd gear 1. The calculator is easy to use and let's you play around with different combos of rear end and tire size. 55 rear gear should be no worries. 73's with a C4's 3rd gear (1:1) you'd have to run the motor up to 6253rpm to trap 130mph. Given that your c4 has a 2. 14,. So I’m hoping to look at where my RPMs are going to be at my current apex speeds with different gear sets. 50 would be my suggestion with a non overvdrive transmission in your combo and usage. 34; 4th 1. 3L) -General/Talk- but I'm looking for a new T5 transmission with a good gear ratio for a B 303 Cam and 3. 15 rear gear being the ideal ratio in most cases for acceleration. 31 axle turns approx 1850 at 70. Rear End Axle Ratio (ie 3. Mar 7, 2016 · It will compute driveline angle, Vehicle Speed Calculator, RPM calculator and a tire size calculator. As an Amazon Associate I earn from qualifying purchases Apr 4, 2010 · Ford Mustang: Mustang Tech: Calculators & Decoders: RPM Calculator That will work for your T-5 as well. 66, and is mated with a 3. Problem is most T5s have too wide of a spread a 3. qqmul gettc srchbxytr xwrtz bvc insz canxdppy wzv exgha bwtlqd