To be more specific, for a touring dirt late model, car builders have been experimenting with moment centers in the range of 8 to 16 inches left of centerline when the car is in the middle of the turns. The relationship between the two suspension systems will dictate how that transferred load ends up being distributed upon the four. These questions involve common dirt track suspension myths that were born out of a lack of knowledge. Racewise rwfront front suspension geometry software. This software calculates and saves all the important. A guide to tuning your fourlink suspension system posted by wayne scraba on april 23, 2015 at 2. This project is designed to help dirt track teams track their suspension changes over seasons, to help tune suspension setup for different track conditions. Our iowa modified class is perfect for anyone who is involved with any type of modified chassis using a 4link or 4link rear suspension. Build your own custom newsletter with the content you love from onedirt, directly to your inbox, absolutely free. A bigblock modified with a late model rear suspension onedirt. It will also setup sprintmidget type of cars using a solid axle front and rear suspension. This program has our roll center calculator completely built in as the front suspension screen. Below is the complete list of hoosier racing tires that we offer.
Dirt late model suspension tuning tips custom radiator forms 11 1 start here custom radiator options. Todays racer and enthusiasts alike rely on the latest racing computer software for chassis setup, dyno simulations, race simulation, updating electronic systems. This tuning guideline can be used for late models, modifieds or b. We offer a wide variety of compounds and builds for many of the sanctioning bodies in dirt oval racing. This article explains the workings of the 4link suspension and the tuning methods used to maximize its performance under various track conditions. To conquer constantly changing track conditions and multiple track setups, the 2. The most complete racing car chassis setup tutorial guide available presented by shown above is a gaming expo fair in europe that held a contest for the best gamer team in a newly released 1st shooter game competition. Actually, i think its been going on for a couple of years now. A bigblock modified with a late model rear suspension. Also dirt tracks offer up inconsistent surfaces, example. Computer programs and data loggers for circle track and road racing performance. Could this be the next evolution of bigblock modifieds. Please feel free to print out each page of the setup information. Test answers racewise dirt track chassis school by mark.
Setup, predict and analyze race car performance including late models. For more questions, please call our parts department. The parallel fourlink rear suspension is common to dirt late model, dirt modified stock cars, and sprint cars. Left rear shock in front when more drive is desired and right rear shock behind when car needs to be tighter on entry. You can then run the suspension through its travel and watch the camberchange, side scrub. A racertunable base valve that allows low nitrogen pressure without cavitation, further enhancing driver input and producing even more bite. Tuning with shocks lr behind late model setup tuning with shocks standard late model setup tuning the car with springs grt race cars adjustment guide 2000 and older late model chassis numbers are close, but could be plus or minus one year. The key to dirt late model handling is getting them to turn.
Dirt track digest 2020 if its on dirt, its on dirt. And im sorry for that, to my loyal readers that have come to the site for the past year since i. Just look at the top touring latemodel cars and youll often see much less rear steer. Rocket chassis is a proud hoosier tire dealer in northern west virginia. Dirt late models and modifieds commonly use fourbar rear suspensions. The dirt car rear geometry layouts are varied and usually highly adjustable for both late models and modifieds. Sprint car, quarter midget,tq, micro, mini sprint, mini cup, karts. It all depends on the track conditions, but when the track has grip, it is very useful to take away that rear steer and drive more straight ahead. Performance trends software and electronics for circle track and road racing. The software covers typical parameterssuch as roll centers and creates a computerized model on your screen. If its on dirt, its on dirt track digest on dirt track digest 2020. The following springshock combinations are recommendations only. It may look like the car is transferring a great deal of weight to the right rear and that the car really is tighter than it was before. Click below on the client list to find out who is out running their competition with the assistance of gale force suspension.
When racing on dirt, watch the conditions and be prepared to make changes accordingly, not just to the setup, but also related to rear steer. Cricle track analyzer can help you improve your cars performance on the track. Recommended basic setups landrum performance springs. Braille super 16 volt lithium circle track battery. The information is input into the program and it will calculate the instantaneousroll center and can show how it moves as the car deals with lateral forces.
Our mission at the racewise dirt track chassis school is simple. We also have programs to help you with suspension setup and other components. Gale force suspension takes you from winner to champion, our list of clients who are winners and champions is a long one. Each wheel can be adjusted independently, resulting in a wide range of adjustability. The ultimate racing car chassis setup guide and tutorial. We feature dirt late model 1piece control arms at low everyday prices. Finding your center finding your front and rear roll center. We only care about the mc location after the car has taken the attitude of dive and roll in the turns. Great car for someone who wants a longhorn at a really great price. This software calculates and saves all the important information. Performance trends has a wide variety of software programs that can help you with your vehicle.
It is the purchasers responsibility to order the correct products through their personal racing experience. On a slick track, you can drop the spring rate to help the car. Whether you are an expert or a novice, pit stop usa has books, computer. Com specializes in motor sports racing, race car, stock car, circle track parts, oval track, car, dirtcar, accessories, tools for the shop and at the track on race day, dirt track parts, circle track, circle track parts, race car part. All setups can only be justified with proper maintenance and checking all suspension components. Ever since the invention of the wheel and its application to mobile carriages, man has understood the benefits of a proper ride to make travel faster, more efficient, and in general, more pleasurable. On a late model or modified, a standard right rear spring will be 200 or 225. Built with tub frame chassis and aluminum bodies, their engines are based on the big power plants from ford, chevy and mopar, either crate engines are specially designed engines. Dirt fourlink suspension the function of the fourlink. Auto racing high performance parts like shocks, springs and bump stops from short track and circle track racing parts supplier re suspension. Matt murphys dirt oval chassis tuning guide preface over the last 17 years of my life, i have raced dirt oval all over the united states, on foam tires and rubber, hard packed and loose dirt. Download dirt track suspension setup tracker for free.
If you didnt find what you are looking for, contact us here. Understanding wheel loads to set up your dirt late model dynamically. Racers edge race car setup software use on any computer. The fourlink suspension on modifieds, late models, sprints, and other dirt track classes offer a nearly infinite range of settings. Late model stock racing cars for competing in dirt racing. Late model suspension frontrear circle track supply, inc. Homedirt late modelcrate late modellate model suspension frontrear. Most dirt track front suspensions need from 3 to 4 degrees negative camber in the right front tire and 1 12 to 2 12 degrees positive camber in the left front tire. There is no making up for a lack of racing knowledge given todays level of competition. Powered by xcart shopping cart software users visited us during the last 2 minutes. In this video jon roetman ownerauthor of racers edge books shows you exactly how to use the racers edge race car setup software.
Id like to take a little time to describe what is going on in dirt late model racing lately. This video will give insight to common dirt late model left rear 4link suspension. Bob harris racetech dirt chassis schools are designed to help anyone who want to win more races. It includes graphs and suggestions for changes to your geometry. But if youre on a fast, tightcorner track, you can up the spring rate to help the car. Modifiedstreet stockmonte carlosportsmanlimitedhobbypro four. Landrum performance springs makes no guarantees that these charts will be suitable for each racers needs. Autoware autoware inc auto racing reference library. This basic tech tip guide gives basic knowledge on left rear. Dirt track racers have botched this stuff up so bad, it took me 27 years to flush it all out of my head and rethink it all. Of course, once the second twowheeled cart was invented, racing was born, and soon the science of suspension was built upon to read the rest. Understanding wheel loads to set up your dirt late model. The more familiar types of race teams which use the program include all touring late model teams including all dirt late models types, au stock classes, sprint and midget cars, modifieds including the imca types as well as the northern dirt modifieds.
The original purpose for using the fourlink suspension was to have a suspension. Has a tiger rear end, new nose and new fenders, body and deck are rough but has all new front suspension, new gauges, new msd box and coil ignition system, wehrs heavy left rear bird cage, all longhorn stuff. This information applies only to 4link rear suspensions having links floated on the rear axle with birdcages with all links running forward. To be more specific, for a touring dirt late model, car builders have been. I have learned a lot about chassis setup on many different track surfaces with many different types of cars. Rear suspension geometry this is a software package that addressesthree. Computer program to simulate, setup, predict and analyze race car performance including late models, modifieds, sprint cars, midgets, go carts, etc.