Supporting Hobbyist in the Santa Clarita Valley and Beyond for 32+ Years! Brake pedal is soft, spongy and/or long before the car is run: Air in the system - bleed brakes. - Camber should be set at -1/2 degree to 0 degree. I have recently been experimenting with higher than average Left Side weight percentages, in an effort to use ALL the contact patches on my car. This is why it . Or you could think of this as the tire with the least weight gets the least amount of bite. Calculate the cross bite by adding the . Racecar calculator to measure the corner weight percentages and cross weight for optimizing vehicle balance and corner stability. standard for high- grip tracks . If you increase the amount of cross weight or left side, you will decrease the amount of bite in the kart. It is a critical set-up tool. How to raise the cross weight in an iRacing Sprint Car. On oval track cars, cross-weight is usually used in conjunction with stagger (where the right rear tire is larger in circumference than the left rear tire) to balance handling. The seat should be positioned closer to the back of the kart. $650.00 + $95.00 shipping + $95.00 shipping + $95.00 shipping. Friday Night Dirt Oval Race Series. The car turned its fastest lap ever with this setup and was on rails. Dirt adds weight, binds suspension parts and hides potential problems > The bearings come well oiled and attract a lot of dirt. The height of the rear roll center (and the front also) is critical to handling. Simply enter in each of your individual corner weights and let the app do the rest! Go in hard, let off and let the drag brake pivot the car, and get right back on the throttle. In oval racing you always run more weight on the LR. Upgrade fluid and/or cool. When you lower the panhard bar the rear roll center drops. t. e. Dirt track racing is a form of motorsport held on clay or dirt surfaced oval race tracks often used for thoroughbred horse racing. However, you can choose to use them. Custom Carbon Fiber. Find More Posts by BD74SS. Weight can be moved around at the track to fine tune the handling characteristics of the chassis. Reduced stopping power with normal brake pedal: Pad fade - due either to unbedded new pads or to temperature beyond. Mono Leaf; LF: 500: 550: RF: LR: 175 20 . For most karts, the following weight distribution is recommended: 43% Front Weight 57% Rear Weight 50% / 50% Left / Right Weight These are just recommended starting points. In NASCAR Racing we are allowed spring adjustments at all 4 corners of the chassis. Increase the turns in the left rear . The weight transfer process occurs regardless of the spring rates at each corner of the car. That makes every little detail that much more important. Always try to start with the track bars first. DIGITAL COIL SPRING TESTER; COIL-OVER SPRING RATER; . Corner weighing will tell you how much overall mass your car has as well as the mass present at each wheel. A FWD oval track race car, like most other oval track or road racing cars, should be as near 50%-50% front-to-rear weight distribution as possible. While it is highly unlikely that any FWD teams would be able to obtain this ideal distribution (unless the rules required a very heavy minimum weight), that's the direction they should be headed. The following kitchen science example demonstrates how chassis weights and preload work. Wheel Offset Changes. Raising the rear end will also provide a little more on-power grip by keeping more weight directly above the rear tires during acceleration. Location: Connecticut : (. Every little bit of weight saving helps at this level of competition. "If your car is really tight or really loose during hot laps, you have to take a look at the things that are going to make the biggest difference. DIRT OVAL; Associated B6.1/6.2 Parts; Associated SR10 Street Stock; Bodies/Wings/Mounts; Custom Works . Weight Distribution. Picture Information. 3. ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. Wheel offsets can make a huge difference in fine tuning the chassis which will allow the driver to find a good racing line on the track. Step 1: Setup And Tuning The Tires Most regular RC cars use rubber tires. Join Date: Oct 2007. Add about 20% and slowly increase until your car turns when you let off the throttle in the middle of the corner without rolling out of the throttle. shorter link . The important thing to remember is that the laws of physics are the same whether you are racing on an oval or a road course. You should not have to set the kart sidways this is someting that happens because of forses on the tire contact patches. Cross weight. You can use rubber tires on very specific tracks and seasons. Inbetween runs the team tries their hardest to clean off some of the dirt and grime that the cars pick up. calipers. There is a fine line between dirt track preparation and walking a fine line. The racing line is one of the first things you need to get right to be fast on track. Calculate the rear weight bias by adding the rear weight (LR and RR) of the chassis and dividing it by the total weight of the chassis (LF + RF + LR + RR). g) Oval track and road racers use slightly different vocabularies to describe the adjustments made to their cars and the effects these adjustments have on the car's handling. These are your current calculated weights: Total Weight = Front Weight = % Left Weight = % Right Weight = % Rear Weight = % Cross Weight = 50% is optimal Bite = Bite should be positive for oval racing Wedge = % Wedge Delta should be positive for oval racing It's a fairly cut-and-dry issue: If the. Only 1/10 tires are to be run. . Its easy you are asking the front wheels to do 2 seperate things. All The Parts And Electronics And More. That is, the axle weight divided by two, minus an estimated or measured unsprung mass for that corner (things like wheels, tires, brakes, control arms, suspension . Just added to your cart. It is the purchaser's responsibility to order the correct products through their personal racing experience. This allows a slightly lower rear stance, which provides a good weight transfer entering a corner. The car was scaled after the race (topped off fuel). Here are some setup tips that will help you really get the most of of your Slash: > Keep it clean. the Left Rear shock. Oval racing in the UK is in some ways very similar to Oval racing in the United states, and on others it is very different. That is seriously more than any other racing series that I can think of. Sackett Racing Spring Steel V-Plate- SOFT. Our current setup is as follows - 270 lbs Car & Driver Cross Weight = 48% Rear Weight = 61% Left Side Weight = 51% LF = 56 lbs RF = 48 lbs LR = 82 lbs RR = 83 lbs I am looking to get the car a little more free on entry and reduce the drift in the center to get that strong drive off the left rear coming out of the corner. Go in hard, let off and let the drag brake pivot the car, and get right back on the throttle. The seat should be positioned to the left for dirt racing. For the 600cc chassis, 61-68% works best. Imagine that you take your kitchen table and place a bathroom scale under each leg. Before the main I put a larger spring spacer on the left rear shock and the next smaller sizes on the right rear shock. Oval Racing Parts. Here are those numbers; TOTAL WEIGHT = 2702 lbs. I had to do this with my truck. Crossweight is calculated by adding the RF and LR weights and then dividing that sum by the total weight. Front Suspension Components Upper control arms, ball joints, tie rods and heims, center links and drag links should all be inspected. A lowered rear roll center promotes side bite at the rear which tends to tighten corner handling. Sadly, many racers misunderstand these properties. Fundamental Truth #2: A softer spring will transfer less weight to that corner of the car than a stiffer spring. Hyperdrive Brass Weights 11g (2) View Details. Hit RESET to clear the form and SAMPLE if you want to see a sample calculation. at a time Move left front out 1/8" - 1/4" at a time Pushes leaving corner Decrease right front camber Increase left front caster Decrease cross weight 1/2%-1% The outer rear tire drives "around" the outer front tire, allowing the chassis to efficiently turn into the corner because the rear tire Too much drag and you'll spin out, but get it right and you can fly! If we only increase the right front spring rate, more weight transfers up front resulting in a tighter car. Dirt Oval Racing Parts, Drag Racing Parts, Vintage Sprint Car Sprints Dirt Oval Racing Parts, Drag Racing Slicks, Sprints Dirt Oval Racing Parts, Keep it to a minimum. If you can get the rear of the car to help make the turn through the corner the front doesnt have to work as hard and you can can put the power down. - Add positive castor past neutral. DIRT OVAL-> BSR RACING TIRES-> BODIES/WINGS/POSTS LEFTHANDER-RC MOTIV/GRAVITY RC BATTERIES-> TRACTION COMPOUNDS . Differences in setup approach. Brake pads badly taper worn - replace. The less body roll, the less amount of negative camber required in the RF. pad capacity. Typically we are at 63-65%. Image not available. KartTuner Pro provides an easy weight distribution calculator. Change any percentage, and the appropriate corners change. The World of Outlaws series races about 90 days a year. Shorten Rightside Wheelbase * * 1 Add 1/2 in. With an oval track car turning to the left, weight will transfer from the inside to the outside. Dirt Oval Conversion Kits; Drag Race Kits; Five Star Merchandise; Adhesives ; Batteries. Ride height will be affected only a little by tweaking on the scales if the weight is put in the car correctly on assembly. < Enter your corner weights in pounds or kilos and click 'Calculate'. Then if the car is still loose on entry we start moving the weight, at the new height, to the right. The track will start to take rubber if it is slick. LEGEND: Description of Car; LF: Dirt Front Spring Asphalt Front Spring . . On the ovals, the car is optimized to turn left. Bashing 108 . . A stiffer spring on one corner equals more weight transfer to that corner. We have A Wide Variety Of R/C Vehicles Including Trucks, Buggies, Crawlers And Popular Suface Vehicles. 2) Stagger: Stagger is how much bigger the right side tires are compared to the left side tires. . That's why we have percentages, we want to know what each corner should way. The oval car has an odd camber setup to increase the car's willingness to turn left. Change the kart and driver weight, all the corner weights change but the corner percentages stay the same. LR = left rear. Manufacturer of car racing scales, professional-grade engine tools, chassis set-up equipment, and other high performance racing technology. Wheelbase 51 . Lefthander-RC Tire Tube (1)- 1/10th Dirt Oval- Foam Tire. Reply. Body roll is determined by how stiff your springs & or sway bars are. A road race car's left/right weight distribution usually falls between 50 and 52 percent (either side depending if the track has more left or right turns). Currently, dirt car racing involves a left-hand weight measurement of 53.5-55, along with a wedge between 75-125 pounds. Generally speaking a micro sprint is . wheel spacer on the left rear * * 2 Add wedge * * 1 Problem: Car is tight in the middle of the corner Lengthen Right Side Wheelbase * * * 2 Add Stagger * * * 2 Raise LR Lower Link on Chassis * * * 1 Move LR wheel inboard 1/2 in. - Weight Distribution should be 43.0% front, 57.0% rear, and 50/50% side/side. 1- your asking front wheels to power the car foward 2- at the same time your asking the front wheels to turn the car. Racing vs. Weight distribution and cross weight (a.k.a. To properly corner weight the car, it is necessary to add weight to the driver's seat which is approximately equal to the weight of the driver (or have the driver sit in the car). Keep in mind the stiffer your springs the more important corner balancing becomes. When checking stagger, make certain that the air pressure is set to the desired level for racing. Cross Weight = Right Front + Left Rear Cross Weight % = (Right Front + Left Rear) / (Left Front + Right Rear) When balanced the Cross Weight % will = 50% Bite and Wedge Delta are important for oval racers, especially on dirt ovals. I had to do this with my truck. "Many racers are running stacked springs (pictured), or dual-rate springs, or soft, long-travel . Both of these cars typically represent crossweight as a value of weight for a specific tire on the car. This obviously means that decreasing cross weight or left side weight Battery Accessories; Bodies. It's over 1 pound lighter than other equivalent drive plates available and allows for up to 2 of rear camber with straight splined axles. Enter the Four Wheel Weights in the fields above then press CALCULATE. In almost all cases, the loss of cornering performance in one direction is greater than the gain in the other direction. The cars back then were very primitive, and raced on 1/4 mile dirt tracks, these dirt tracks have now progressed into shale and tarmac tracks. Moving weight to the front of the kart will provide more front-end grip. Wheel offsets are very important. Over Rear End to Tighten Car on Corner Entry. Re: Jato The Mudboss - Dirt Oval Racing. "If your car is really tight or really loose during hot laps, you have to take a look at the things that are going to make the biggest difference. 3) Every Strange Oval axle is made to twist, you will gain some forward drive regardless of what axle diameter you may choose, all of . Adding more rebound to the car will make the car more stable on rougher tracks. THAT ARE CHEAP AND APPEAR STOCK. Oval track and road racers use slightly different vocabularies to describe the adjustments made to their cars and the effects these adjustments have on the car's handling. Indy Cars and Dirt Oval cars are the most dramatic departure from the common crossweight percentage value. LEFT SIDE WEIGHT ON DIRT. racing promotor Moderator Decrease rear weight percentage Increase front weight in .25% increments Move seat forward Check toe out Tight in center of corner Increase air pressure in the left front 1/2 lb. 4.63 gear polished and light weight. Since oval turns go in only one direction, the car is setup to be stiffer on the right side (because a left turn shifts weight to the right). Wheel offsets are very important. Page | 13 Camber Link, front . .1 -.3 ounces is close. BD74SS. On a road course, you would generally have a balanced (symmetrical) setup since you have left and right turns. The hub cap comes with 3 socket head cap screws. They fit Howe, PCR & Vogel style 5-on-5 hubs. Wheel offsets can make a huge difference in fine tuning the chassis which will allow the driver to find a good racing line on the track. They are not too suitable for racing and oval dirt cars. Also, the wings are much simpler to produce less drag. Example: RF = 643, LR = 751, so, (643 + 751) 2,800 = 0.498, or 49.8 percent. Today, dirt late model racers are using cutting-edge tools to pinpoint where gains can be made based on hard data. Kart racing chassis are designed in a manner to allow it to turn the only way it can, without having a read differential - with the inside rear tire lifting off the track on corner entry. FOR 78-88 GM METRIC CARS. Just quit when you are close. Weight Distribution, adding weights 50 . Right Front Left Front Right Rear Left Rear Corner Weight Calculator This is used to calculate the corner weight and Wedge. Late Model Dirt 2300lb. 5x5 HUB-MOUNTED CORNER WEIGHT SCALE; WIDE-5 HUB-MOUNTED CORNER WEIGHT SCALE; 5,000 LB. The purpose of this tuning is to help you enjoy racing dirt oval, and help you understand the many . If our car is a little loose going into the turns we may raise all the weight 6 or 8 inches. the more throttle turn you will have on corner exit. As oval cars are only responsible for turning left, the cars are designed to turn slightly without any steering input.The camber of all tires are cantered over to the right to provide the widest possible . However, for dirt oval RC cars, foam tires are the norm. Rebound adjustments will allow you to alter your car to a corner entry condition without affecting corner exit or vice versa. These set-ups are to provide a reference only. Adjust the cross weight for more extreme conditions or different circumstances. View Details. DIGITAL COIL SPRING TESTER; 2,000 LB. The main types of race vehicles that race on dirt are open wheel cars, modified cars, stock cars, and motorcycles. Rudis Motorsports www.rudismotorsports.com Rudis RC Drag Racing Radio Control Drag Racing Remote Control Drag Racing Drag Race Concepts AFX Fab RMs BBE. Increase the turns in the right front torsion bar stop (adding weight to the right front). Home; About Us; Resources. A FWD oval track race car, like most other oval track or road racing cars, should be as near 50%-50% front-to-rear weight distribution as possible. Even on dirt sliding scruffs speed off and hurts your corner speed over all. How do you set up a racing go kart for dirt? 1) Tweak: Tweak is the amount of weight on the LR as opposed to the RR. Hot Rod Hobbies R/C Raceway and Hobby Shop Is Your One-Stop Shop For Fun! Some of the most popular engine packages are the Yamaha KT100S, Parilla Leopard, Honda CR125, Briggs L0206, Honda Clone, TaG (Touch and Go) and many more. . KartTuner Pro will even show you your anticipated Center of Gravity based . Cross weight and left side work backwards in terms of adjustment. Your suspension has one main purpose; to control the amount of Weight Transfer to each corner of the chassis, which in turn changes the amount of traction that tire can achieve. Enter the corner weights (kart and driver) and the percentages change. Racecar calculator to measure the corner weight percentages and cross weight for optimizing vehicle balance and corner stability. Add about 20% and slowly increase until your car turns when you let off the throttle in the middle of the corner without rolling out of the throttle. To raise the cross weight, you can do one or all of the following: Decrease the turns in the left front torsion bar stop (removing weight from the left front). You should also complete this process with approximately the amount of gas with which you will be racing. Skip to content. The stiffer the springs, the less body roll. If you have uneven mass on your wheels then your tyres will all have different levels of grip which can lead to an unpredictable car on circuit and make it corner faster in one direction than the other. Side by side racing is offered but it is slower. The important thing to remember is that the laws of physics are the same whether you are racing on an oval or a - Toe should be set out 1/16. In this condition the tire with the most weight (load) gets the most bite. You will need to weight your vehicle on each tire to use this tool. Talk about life on the road. When you have too much stagger you will find a loose (rear has less traction than the front) condition. No corner-cutting or Save those corner weights. The more the car "rolls" over through a corner the more negative camber you will need in the RF. And of course bounce the front and back a couple of times before a reading. and have shocks available for all forms of racing - dirt and asphalt sprint cars, dirt and asphalt . Send a private message to BD74SS. For Indy Cars, this value is the amount of weight on the left-front relative to the right-front. Wheel Offset Changes. A good starting point would be - tank of gas. Before doing this set your ride height on three corners. I run a Metric chassis on dirt circle track. 3) Reverse stagger: The opposite of stagger when your left side tires are . $650.00 + $95.00 shipping + $95.00 shipping + $95.00 shipping. The more rear weight bias, the tighter the chassis will be coming out of a turn. See all 11. are helpful tools for tuning your suspension. SUCH AS SPRINGS, SHOCKS, SWAYBARS ETC. preload, bite, etc.) Fat Guy Designs Carbon Print Wing/Body Brace- 2in. Fat Guy Designs Sprint Side Panels for GFRP Cage. LF = 713 lbs (26.4% . Dirt track racing started in the United States before World War I and became widespread during the 1920s and 1930s using both automobiles and motorcycles. We'll also assume you have a 200-pound driver, your minimum weight allowed is 2,900 pounds, your recommended rear weight is 50 percent, and your maximum left side is 56 percent-a common scenario for circle track competition. First on most 1/8 1/4 mile tracks you should be lifting on the gas very little if at all. This racing line tutorial explains where you should turn-in, apex and e. On Dirt cars, adding Rebound to the Right Rear will make the car more stable when it slides into the cushion. There are several forms of dirt track oval race cars, and in this article we will go over each type. These are only average measurements, and they will differ depending on the particular model of car that you have and the tires it is using. Always use a flexible 1/4" tape or Stagger Gauge to measure each tire's circumference, measuring at the center point of the tire. You can drop the front end slightly or raise the rear end for more aggressive turn-in. Weight: Model: Quantity: Product Name: Price: Buy Now: BS1000. Quickly and easily see your Total Weight, Front/Rear Weight Distribution, and Left/Right Distribution. 4.63 gear polished and light weight. Conversely, if the car feels tight throughout the corner, raise both track bars. Posts: 4,501. MPI Steering Wheel 15" (Was for Sim racing) $285.00 . The front upper control arms can be relocated, but everything else, (front and rear) must have stock suspension mounting points. Chapter 1: Introduction to Dirt Oval Chassis Setup: . The roll center is an imaginary point around which the rear of the race car rolls. Body . Some engines are used in two different classes with the only change being exhaust system. Qty: View cart . CORNER WEIGHTS When the rear tires are sliding or spinning, the single largest factor affecting the bite (grip) is the load on each tire. . View Details. * * * * 2 % Left = 57.8 % Rear = 49.8 % Diagonal = 55.2 *Swaybar Unhooked RIDE HEIGHTS LF = 4" RF = 4" RR = 4-1/2" LR= Floats CORNER WEIGHTS, SPRING RATES, ETC. The following settings are recommended as a starting point for a dry track with much grip, perhaps one that has a lot of rubber laid down. The number at the bottom corner of the gauge nearest the tyre indicates the angle of camber. f = Natural frequency (Hz)K = Spring rate (N/m)M = Mass (kg) When using these formulas, it is important to take Mass as the total sprung mass for the corner being calculated. Minimum weight for a winged sprint is 750 lbs while non-winged must weigh 725 lbs. Check your notes from the previous night of racing to see if any weight was moved, taken off, or added to your race car . Shock Position Quote: Originally Posted by JatoTheRipper. Mouse over to Zoom-Click to enlarge . Moving weight should be used as a fine-tuning tool to get the car working as best it can for the track conditions. View Public Profile. Stock car car racing in the UK started in 1954, at New cross stadium. Strange Oval Introduces Their New 5-on-5 Cambered Drive Plate For Asphalt Late Model. Track bars. For example, let's assume your car weighs 2,500 pounds race-ready but without any ballast. I race in a spec class, so everyone is using the same equipment. I need to try to get the car to turn. Two different types of race cars dominate open . Strange Oval is bringing a rich racing heritage and a relentless need to innovate for all forms of oval track racing, including Late Models and Modifieds. "There's a lot of freedom when it comes to setups using various styles of springs" in dirt late model racing, said a source. parts can be overshadowed by dirt or mud on the frame or suspension components. Fat Guy Designs Wing Brace Set (For FG Wings) View Details. The nose weight is simple to remember the tricky ones are - cross and left side adjustments. then set corner weights and cross weight. If the car feels loose throughout the corner, lower both track bars evenly. Graphite vs. Standard Material 109 . Dirt Oval Racing Parts, Drag Racing Parts, Vintage Sprint Car Sprints Dirt Oval Racing Parts, Race Cars (Not Street Legal), Sprint kart classes are broken down into driver's age, engine package, and total vehicle/driver weight.