how to tune gear ratios in drag racing

The 3.73:1 gear (assuming the tire size stays the same) barely slows the e.t. Most enthusiasts in this category find that a 3.73 gear ratio is right for them. Shorter gears work better in a 1/8 mile race, while longer ratios work better in a quarter mile or half mile race. If you also want to get relatively good fuel economy, a 3.55 is a good compromise. You can choose which RPM the nitrous kicks in at in each individual gear. But for road racing, if there are no standing starts or pit stops, you can be less concerned with a low first gear and instead make it higher and possibly useable on the course. Here the situation is a bit more fluid because drag racers have set eighth- or quarter-mile distance to manage, whereas track-day drivers and autocrossers face layouts of considerably wider variation. The manuals gearing chart makes it easy to see which ratios are safe to use, and which you should reserve for racing and speed runs. Your suspension is one of the most tuneable components of your car. First Edition Hb (1998): 0-521-59330-1 First Edition Pb (1998): 0-521-59674-2. Extracting arguments from a list of function calls. These, and other important engine related questions, are explored and discussed in this book. If you have a data acquisition system to record your speed history, then its also useful to record throttle position. If you dont know too much about cars or racing at first, it can be daunting. Not surprisingly, the 10-speed was quicker, at 11.06 at 123.3 mph, compared to the TH400/4.10 gear package, at 11.25 at 121.8 mph. Not only does gearing have little return influence on those factors, its one thing thats relatively easy to adjust at the last minutein race cars that have quick-change ratios. The speed signal could be run through a simple on/off switch on the throttle stop. For all-around fun driving with 2S LiPo power, use the 22-tooth pinion. As i have written before, the concept of 1/4 mile and ssr7 is the same, only thing is you are making the gears longer for ssr7 to hit a decent and competitive speed, while beeing able to come there in a short ammount of time. amount of time. story by paul van valkenburgh photos ascredited. You wont need to tune it until you make so much power that youre hitting the rev limiter in the final gear. Example: If your max HP is at 6300 RPM use 6300 for . The clutches are connected to two separate input shafts. Their Grand-Am Cup Porsche 996 machines, while outwardly similar, need a slightly more delicate hand. Start playing with main ration (go from 2) until you satisfied with acceleration on 1st gear. Computer tuning is one of the more advanced components of the game, and requires you two more heavily tune the rest of your car first, or at least get experienced at knowing what everything is and what you like. Gearing is usually about the last stage in race car setup, since it depends on all the corner exit speeds and straight-away top speeds, which depend on the final development of cornering power, braking and aerodynamics. The shift light is to help you remember the good point to shift, and depends on your tune. Still, there is alwayshope. The minimum and maximum ranges of acceleration for each straight can then be plotted as a bar chart, as shown at the bottom of Figure 1. Example: 1st Gear set to around 3.4 while 2nd gear is set to around 2.8. Asking for a friend (of course). Archimedes (287- 212 B.C.). Start off by tapping the first gear down the most, and tapping the next gears down slightly less (such as fifteen taps for first, 10 for second, 9 for third, etc). The top two lines on the Pi Research data acquisition printout represent the rpm for the two cars. Forza Horizon 4 tuning guide: Ultimate OP edition This also multiplies the input torque by 4.1, which is the reason the car jumps when you hit the throttle. It may be burning oil, it may be leaking, the compression may be so low that it only starts on cold days, or maybe it just isn't very efficient anymore. Although this is a limited exercise, we can still study the compromises forever without reaching the optimum solution, which is why pros want a quick-change trans with many options in each gear. Sometimes the simplest, most innocuous question requires a complex and demanding explanation. Note that you can test anytime and check how it's working for your car. Low Ratio = Long Gears. is powerful enough to launch you to 4th Gear in an extremely short Determine if you need to tune gears. Long Gears are useful if you are looking for max speed, but reduced . How to tune cars in Drag Racing? - Arqade Just reduce the gear ratios for the 3rd, 4th, 5th and 6th gears. Which is better for your truck? Realistically, if we add a taller tire, it would offer better grip with a taller footprint, and perhaps the 60-foot might have been quicker. As far as launching goes, this is not important if you pay no attention to the tachometer, but youre only making it easier for yourself to change this. Hi everyone today this video is about the best gear ratios I have found for your car in CarX drift racing. How to pick the best gearing setup for your Drag Slash. Forza Horizon 5 tuning guide: How to tune cars, what every setting The final part of the book focuses on modifying specific engines: American V8s, Porsche 911, Volkswagen Air-cooled and Water-cooled, Cosworth BDA, Formula Ford 1600, Datsun 4- and 6-cylinder, and Mazda rotary engines. My Enzo spins until 95mph and has good acceleration. Cute, not sure which is cuter, the spelling or the defense of it. The torque capacity of this unit is sufficient to live behind 3,800-pound Drag Week cars running in the 7s. You can also see that the longer gearbox does catch up dramatically when the other box is shifted, but the gain back isnt enough to make up for the loss from being out of the powerband. At this track and with this application, the close-ratio box produces the faster laps, even though a little more shifting is required. With the 16 / 90 gearing, the pinion must make 5.63 revolutions to turn the spur gear once. We're not there yet, but 10-speeds are closer than four-speeds, and we've certainly come a long way from the days of the lowly two-speed GM Powerglide automatics of the 1950s. Survivor!.io Pet Guide: All Pets, Pet Upgrades, Best Pets, Pet Cookies, and More! Plotting speed bars at redline in all four gears for our different ratios produces this spread. In our Rolex cars, the transmissioncan be shifted as quickly as you can physically do it, Wayne explains regarding their Porsche GT3 Cup cars. Not giving out all our secrets but enough to get people in the right direction , yours is tuned for indy tho of course it will spin till 95mph, Yea knowing that your gears are longer and you have different suspension setups you probably don't have so much problem with wheelspin as you are more focused on top speed rather than acceleration. Pro Series Drag Racing is unique among racing games in that its as simple or as complicated as you want to make it, but the complicated parts are very rewarding for experimental people. These are just a few examples of common questions Ford fans have. Youll notice some gradual changes will make a very big difference on your race times. This pulls an engine speed of 6,500 rpm in second down to 4,400 in third. You see, similar. No, I'm saying if the front is scraping the ground and the rear is high in the air, that's all good at indy but at 200+ you are not going to have the best top speed. How is the wheelspin thrust limit calculated? I am redlining it. The minimum corner speed for an autocrosser probably isnt a relevant selection criteria here, because with lots of excess power at lower speeds, you cant use full power for much of the turn, and therefore gearing is relatively unimportant. Read on for a full tuning guide for No Limit Drag Racing 2! Each car has different caracteristics, so different settings would apply for each car. This is . Say you were going 500 rpm over a 6000 rpm recommended limit. Pixel Car Racer | 3710HP Corvette ZR1 Drag Tune - YouTube Hottest Codes: Active Promo Codes for Genshin Impact: The Full List and How to Redeem Them. Make sure to upgrade the tires and drop some of the weight on the car first, so your car is capable of gripping better during take-off. Depending on the car, the race distance, the upgrades chosen, and your driving style, tuning optimisation will change dramatically, because of the number of changes you can make, the total combination of tuning setups and resulting race times is unfathomably big. The bottom line is the gap between the two cars, Wayne notes. The undercut angle and corner radii of these dogs are carefully designed to catch without wearing and to lock together firmly as long as torque is being transmitted. The Aston Martin V8 Vantage 6-speed gear ratios for cars below 1000HP work beautifully and so do the Aston Martin V12 Vantage 7-speed gear ratios for cars over 1000HP, just make sure you put slicks on every car you decide tune. If we plug in 3.20:1 to the formula, it works out to 2,688 rpm as our new cruise rpm, a reduction of over 750 rpm. Maybe second gear is too low and you have to shift right away into third, or perhaps that gear is too high and you dont have enough torque. Selecting Tune and buying the drivetrain will allow you to fine tune your car. Feb 25, 2011. Survivor!.io Pet Guide: All Pets, Pet Upgrades, Best Pets, Pet Cookies, and More! You'll learn proven techniques to increase performance and reliability, and, just as important, which modifications won't give you meaningful gains. However, there is a different approach to gearing that can make your . Nadeox1 Dec 10, 2016 @ 2:32am. You'll see first through sixth, ending with rear, and a bunch of bars and numbers. Out of the box, the Drag Slash is equipped with a 22-tooth pinion gear and a 76-tooth spur gear for a total gear . Big Cooking: List of Promo Codes and How To Find More of Them, Shadow of Death 2: List of Gift Codes and How To Find More of Them, Sorry that was supposed to say X division, I need a gears and final gear set up for the active division car I use the Camaro platform Can't seem to get the car to go anymore than 275 Your help would be greatly appreciated thank you in advance, I dont know if this is for real if so please give me good tunes for small tires racing and promod and big tire nothing against you but if this is real send me tunes then please, How do you get the tunes for the promods and the other cars please I need some bad I can never get cars over 6.45, (9I[27s8) Hi! The key is to find the best balance of acceleration, top speed, and tire grip. Discussion in GT5 Tuning started by Starfirebird, May 27 *Note* This guide isnt meant to get you perfect gear ratios.I made this guide to help Ive been trying to figure out the gear ratios for drag racing.. it just sucks every time I think I have it set up at the top end limit for each car I , Lenco Racing Transmissions have brought more of their racing hardened anodized finish, and a larger choice of gear ratios for perfect fine tuning of gear ratios. And all cars can be used for indy and ssr7, as long as you are racing equal cars. Willow Springs is the longest, at 2.5 total miles, with a front straight that is roughly 2,000 feet in lengthover 3/8 of a mile. RC Setup Guides for Drag Race Cars Will Cleveland heads fit on my Windsor block? (I can provide the math for this if you are interested). Tips, Cheats, Tricks, and Strategy Guide, ACE: Space Shooter Tips, Cheats, Tricks, and Strategy Guide. Calculators - Richmond Gear Duet Cats Tips, Cheats, Tricks, and Strategy Guide, MONOPOLY GO! The first chapters explain the fundamentals that govern high-performance engines: thermodynamic laws, gasflow, mechanical efficiency, and engine materials and construction. In Part 2 of our Drag Slash tuning series, we'll discuss the two gear ratios included with the car, how they impact performance, and considerations for choosing other gear ratios to suit the way you want to drive your Drag Slash. Cookie Notice Otherwise, the synchronizers or lugs may be rapidly worn or broken, requiring the driver to match speeds even more closelyor perhaps even hold the shift lever in gear. I tweak the settings very minor. This is where things get a little in-depth! Keep in mind that the highway cruise rpm needs to remain at or above the converter stall speed to prevent building excessive heat in the fluid. Dragstrip Mustang. Our simulation indicates it could be worth a couple of tenths in the quarter-mile over a typical three-speed automatic. Passing negative parameters to a wolframscript. 1: Go to "Transmission Settings" on the car your tuning. Episode about a group who book passage on a space ship controlled by an AI, who turns out to be a human who can't leave his ship? and our Posted on Published: 20210614- Last updated: 20220222. I might start a thread about the basics at Indy. How Changing Your Final Drive Ratio Can Make Your Car Quicker document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. At this point, the serious racer might take his dyno torque curve and use a computer to convert it to thrust at the rear wheels in each possible gear ratio, then plot it against speed along with the bar charts of track speed. Or not. This method minimizes the number of shifts per lap. What you need to know about torque converters | A quick explanation, How Crack Checking and REM Polishing Can Better Prepare a Transmission for Track Use. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. It's a complex subject, but when using overdrive in a high-speed situation, you must consider something called critical speed. Watch as David Freiburger, Steve Dulcich, and Steve Brule strap a ProCharger centrifugal supercharger to a bone-stock Chevy 350 bottom end and keep stepping up the boost to find the breaking point. This allows you to enable it later in early gears for good launch traction, while enabling it earlier in higher gears for maximum speed. For more information, please see our Gear Ratio Tuning Guide by StarFirebird. Make sure to upgrade the tires and drop some of the weight on the A pinion with a lower tooth count will help your Drag Slash accelerate faster but reduce its top speed. Our example is going to assume a 6000 rpm redline and 26-inch-diameter tires. If there is one thing Ford Enthusiasts have learned over the years, deciphering which parts work with which engines is a far more difficult task with Fords than with many other engine families. Passenger car transmissions use angle cut or helical cut transmission gear teeth to reduce noise, while differential gears feature hypoid cut teeth. No Limit Drag Racing 2.0 - Full Tuning Guide: Best Tunes For Each Race Also keep in mind that the Porsche GT3 Cup is a somewhat peaky motor, Wayne adds. Once Its saved, then I can slowly tweak my higher gears one at a time along with the Final Drive and see which changes pushes my car to a higher top speed. Our example is going to only consider three gearing options, and were going to say that the track only has four major straights. We on ssr7 only want maximum grip at launch as well, we want no aerodynamic what so ever. To tune rear antiroll bars, take "64" and multiply it by your rear weight distribution percentage (for example, 46% will translate to "0.46"). Your needs here will change whenever you do heavy modifications to the engine (such as forced induction etc), so this too is more of an art than a science. Increase the launch RPM as you lengthen the first gear and as you increase power. This allows you to decrease power at certain speeds, making it easier to gain traction when you might have previously just spun the tires. And by fitting a shorter final drive you can achieve better acceleration, since you can increase the amount of torque to the wheels, or you can fit a taller one and increase your top speed. 2023 Motorsport Marketing. Upshifting will have the engine make more torque, but with less gear multiplicationthere will be less torque at the wheels. One way to do that calculation is simply to multiply the Gear Vendors' overdrive ratio of 0.78:1 by our gear ratio to create our effective ratio: 4.10 x 0.78 = 3.198. But 10.168 / 4.70 (to determine the equivalent rear-gear ratio) equals 2.16:1, which is not realistic. This calculator will help your hot rod or street machine get to the next level without red-lining your engine. All of this is an attempt to approach what a continuously variable transmission, where ratios are always changing, does during acceleration. With a 0.64 overdrive, this effectively converts a 3.55:1 rear gear to a 2.27:1. Almost every video game on the market today is powered by a game engine. Actual engine preparation techniques are described in the middle section, including cylinder head work and balancing and blueprinting. The 10-speed simulation experienced tire spin (which slowed the 60-foot) because it had much more overall first gear. One way to improve this without having to completely change over to an overdrive automatic might be a Gear Vendors overdrive bolted to the back of our TH400. Not only will you be prevented from flipping over or doing too high of a wheelie, but you will get traction on the rear wheels unlike anything that would be possible without the wheelie bar. The more compression and rebound, the higher the front end lifts. I used the Vantage V12 7-speed ratios, added two extra gears on my Delray Custom and just tinkered with the 9th gear ratio, this made it driveable to a certain extent with an insane top speed. (I made it so the screenshot would never get deleted), (Updated Side Note: If you find the car redlining at the 6th or 7th gear, just adjust the 6th or 7th gears ratio to find the sweet spot, where your cars max speed stops climbing). A boy can regenerate, so demons eat him for years. Arqade is a question and answer site for passionate videogamers on all platforms. Plus, the Gear Vendors unit can be used to split the TH400 gears, which will generally improve e.t. A gear with a lower numerical ratio, like 3.08:1, does not multiply torque as much, but, all else being equal, will produce a higher axle or tire speed. (The faster you go, the closer you want your gear change ratios to be, but thats another, more complex story.) Tips, Cheats, Tricks, and Strategy Guide, ACE: Space Shooter Tips, Cheats, Tricks, and Strategy Guide. RPM's are at 8 - 9 thousand. This would slow the car down on the dragstrip by perhaps 0.10-second, but would net a 70-mph cruise speed of 2,326 rpm. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? It doesnt matter very much whether you go with a higher differential like this or to a lower differential and then upshift earlierunless you can use your top gear, which will probably be direct (or 1:1), and will have slightly less driveline power loss. The 60-foot times were exactly the same for both transmissions, and no other changes were made. The 2.29:1-first-gear version is rated at 635 lb-ft of torque. Finally, Kluczyk explains how to adjust electronic management system to accommodate a supercharger or turbocharger. In pure racing gearboxes, the gears are alternately connected to the mainshaft by stepped cogs, also known as dogs, which are designed to engage or grab the next gear very rapidly and firmly, an action too harsh for everyday driving. Get a look at it. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The math works out as 1.28 / 1.89 = 0.677, a 32.3-percent rpm-drop. Can I gain compression by using older model cylinder heads? Provides step by step strategies to analyze, control, and design diesel engines, their systems, and major components. Try to set it to 1.7. The basic difference in applications is between drag racing, with its standing starts, and road racing, where minimum speeds are possibly around 40 mph. #Tips and tricks #Drag racing streetsif you enjoy this video make sure to hit that like button and subscribe for morehttps://youtube.com/channel/UC7YgErf7. The beauty of having a redline a lot higher than peak power is that you can increase your average horsepower to the ground by running past horsepower peak. If i take my best indy car, alter ONLY the transmission, it will most defiantly lose at SSR7. Somewhere between 5.5 and 7 works best, in my opinion. All you have to do is to go to the upgrade store and purchase what you want under the Tuning tab, and youll be able to control nearly everything about the car. But whether youre a beginner or pro, the optimum solution for competition will always be the same: First, identify the ratios that create the maximum area under your engines torque curve between minimum and maximum rpm in each acceleration segment or straight; and second, reduce the gear shifting workload on the driver. Gearing for race cars is pretty simple, but track dependent. (These kinds of gears are also used to lower the driveshaft centerline.) The theoretical name for that is the Traction Limit. Access Drag Performance Calculator. This would yield a theoretical 3.33which is close enough to the nearest available final drive ratio of 3.36:1. Time to put away the slide rules and see how gear ratios affect lap times. We simulated that tire-change situation of a 26-inch versus a 28-inch tall tire using a taller 3.55:1 (versus a 4.10:1 gear) ratio, and the car lost barely 0.07-second running 10.30s at 130 mph, but cleared the lights with the taller tire at 5,800 rpm instead of 6,700. It is possible to resolve the question of optimum gearing for each race track by guess and testunless the course is new or cant be pre-run, as in autocrossing, which we will consider in a separate sidebar. The black line is the graph of the car with the tighter gears, and the red line is that of the longer gears, he explains. This can add just enough to your time that you can win some tough races that you would have otherwise lost. He also rips off an arm to use as a sword. Power is now easier to make than ever, and with that comes an evolution in the approach to gear ratios. However, that will change the ratio in every gear by the same multiple, which will probably upset you in another corner. A close-ratio 2.43-first-gear Super T-10 shifting from second to third drops the rpm by much less, at 24 percent, and a T-56 six-speed is in between, at 27 percent. Also covered in detail are the installation challenges, necessary tools, and the time required to do the job. The 3.07:1 differential with the close-ratio gearbox raises second gear so much that the engine will be bogging coming out of the slowest turnsand you dont want to downshift into first. One of the more obvious things that you can tune is your ride height in the front end the rear. Forza Horizon 5 Gear Tuning with Forzatune Pro - ForzaTune Tuning transmission for Drag Racing | GTPlanet zDuSsJK9owpDWa8GO9fzDfseiyz4I70TFehvQ65lheUTe4xK27lJFdlcruA1SsCq. Transmission tuning is extremely important, especially as your car becomes more and more powerful. In racing use, these synchronizers wear rapidly, or are prone to more instantaneous failure. Set the first gear to the lowest possible setting. Say, for example,due to regs restrictions your peak horsepower is at 7400 and falls off fairly quickly, but the engine is fully capable of spinning to 9,000 w/o damage (though it ain't doin' much up there)? Change the gear ratios with an eye on what your top speed is in each gear. With traction, the 10L80 would have been even quicker. If we divide a higher gear (like third) by the lower gear (second), we can see the change in rpm expressed as a percentage. You should try to make tunes for ssr7 as well, so you get a little bit of variation. You can see that the tighter gearbox has to perform two shifts on the straight, while the longer gearbox only has one shift. The middle two lines represent the speed in mph of the two cars, with black for the tighter box and pink for the longer gears. People even jump on ghost sometimes . Everything else is picking the middle ground between the must haves. I figure it should stay in 1st whole autocross. Here is a down-and-dirty way of picking the best gearing for a particular car from three choices: 3.07:1 final drive with a wide-ratio transmission, a 3.07:1 final drive with a close-ratio transmission, and a 3.36:1 final drive with a close-ratio transmission. Boost control is not typically necessary early on as this is mostly taken care of by modifying the gear ratios, but if you get to the point where even just changing the gear ratios around, having the best tires and having the right suspension tune is not stopping the wheelspin, then take the boost down in the early gears, increasing it gradually as the gears get higher, up until the point where you are just barely avoiding wheelspin. Lets say your total wide open throttle speed range is from 35 to 60 mphtypical values for the average autocross, no matter where its being held. JavaScript is disabled. This gives us another reason to lower the 3.07:1 differential ratio. Pinion gears with 25-29 teeth are for speed runs and drag strip use only, not general driving. Tune up! how to tune gears in drag racing:streets .#10 - YouTube My challenge car build has a 1 gear ratio of 9.11 and top speed of 59mph in 1st and 96 at top of 2nd . Determining the vehicle's overall ratio is as simple as multiplying the first-gear ratio by the rear-axle ratio (e.g., 2.48 x 4.10 = 10.17:1). gearbox :: Car Mechanic Simulator 2021 General Discussions But, what is a game engine? @Zoot's answer on this question is very good to give a basic understanding on Tune settings. Brain: IQ Evolution/Trick Puzzle Game - All Answers and Solutions for All Levels and Questions, Brain Out: All Questions Guide - Levels, Answers, and Walkthrough, Active Promo Codes for Survivor!.io: The Full List and How to Redeem Them, Active Promo Codes for Genshin Impact: The Full List and How to Redeem Them, Punch Kick Duck: Tips, Cheats, Tricks, and Strategy Guide. Never tried it. No Limit Drag Racing 2.0 is the long-awaited sequel to one of the top drag racing games on the iOS and Android platforms and like its predecessor, it starts off simple, and then gets very complex as you get deeper into it. Of course, if every last hundredth is important, then the deeper gear is worth the change, but for a street compromise, the taller gear would work just fine. Privacy Policy. Of . The text introduces, illustrates and explains the important facets of modern engine design. You can experiment with other gear ratios to customize performance or match power delivery to a shorter track. Extensive testing has determined the 29-tooth pinion offers the ideal mix of acceleration and top speed for a 132-foot track, the standard length for no-prep RC drag racing. Let's investigate the advantages and disadvantages of plugging a gear into a drag car and those same ratio options for the street.