Rc suspension tuning guide antiroll bar the antiroll bar connects the left and right side of the car to keep it flat during cornering. The basics whether you are a road rider or a racer correct suspension setup is the key to fast smooth riding and consistent lap times. Complete book of flat track racing by gerald foster, 9780854292325, available at book depository with free delivery worldwide. Raising the inner mount will keep the front end more flat. With the help of this book, you will learn critical information about racing success, including. Here youll find current best sellers in books, new releases in books, deals in books, kindle ebooks, audible audiobooks, and so much more. Our mission at the racewise dirt track chassis school is simple. You adjust camber and tire pressures using tire temperatures. The vincent black shadow, tuning for speed, part 1, by sam q. Aluminum strut package, stud mount externally adjustable, heavy duty brake kit for hub mount wheels. I personally use 35mm for road and a few track days use.
Spring car chassis technology, tuning the suspension with shock absorbers, imca modified chassis. Flat track racing is very much an only in america sport. Suspension design having the right springs and motion ratio is a very critical part of any suspension system. I have learned a lot about chassis setup on many different track surfaces with many different types of cars. Suspension set up for flat track motorelated motocross. Race tech has measurements, specs, and settings ready to build you a personalized suspension setup. Steve beatties 26 suspension offers the best in knowledge and experience. We can tune your motorcycles handling based on your riding discipline, plus your weight and ability. Yet even at this high standard, these cars can be dramatically improved. Flat track setup honda crf 450 motorcycle suspension.
This is a great book that any enthusiast will love. Andrewt march 06, 2014 outside of having your suspension tuned and setup by a professional, you can fine tune your dirt bike. Nov 01, 2000 obviously, the main difference comes from tuning with a leftside weight and suspension bias oval, compared to a neutral setup configured for multiple types of corners road course. Highperformance handling for street or track strips away the myths and misconceptions surrounding vehicle dynamics and handling to give you the information and strategies you need to make the right suspension modifications, choose the right aftermarket parts and tires, and gather the crucial data that will allow you to maximize your cars performance. Flat track requires more suspension tuning tracktotrack than any other genre of motorcycles due to a wide variety of soil conditions and bankings. Net, and i have a 69 std beetle with irs rear that i run in the hillclimb circuits in australia. Chassis tuning 101 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. Shock and spring tuning fourlink tech improving handling. A track bar runs from the frame to the axle perpendicular to the radius arms to keep the axle centered on the frame. Krooztune suspension provide a comprehensive tuning service. The original film of the same title is the basis for the book, but the book also details some of the riders he worked with like mike hailwood, barry sheene, kenny roberts, and steve baker, as well as a look into almost every form of motorcycle sport in road racing, motocross, dirt track, and drag racing.
Some say americans racing motorcycles like they race horses. Antiroll bars, also know as sway bars, are used to reduce chassis roll while cornering by connecting the left side of. The fourlink suspension on modifieds, late models, sprints, and other dirt track classes offer a nearly infinite range of settings. Dick guldstrand has been involved with car racing dirt track, oval track, road racing and race car building since the late 50s. Motorcycle suspension 101 a complete guide for riders. Suspension tuning guide street bike or road racing applications with incorrect suspension setup, tire wear is increased and handling suffers, resulting in rider fatigue. These purpose built tires have been on numerous championship willing vehicles including pikes peak.
Comprehensive and fully illustrated, this technical. How to set up your bike for handling, stability, and control on the street and track by andrew trevitt isbn. Tech center support install articles tuning guides worksheets product development and tech shop tours. The suspension setup for a strutequipped car is very much like that of a double wishbone aarm suspension. The key to a quick lap in dry slick conditions onedirt. A longer link means the camber will change less as the suspension compresses, which will make the car turn in harder but push exiting the corner. Suspension tuning can be used to change the way the car behave on different track and road conditions, playing to your car. Stepbystep racecar setup guide paradigm shift driver. The complete book of flat track racing, when first published in 1978, was a celebration.
Drag race use only for hub mount wheelschoice of 4 12. His area of specialty is gm car suspension, including the f body camaro. How to improve your motorcycles handling and performance, is one you must have in your garage if you have even the most remote interest in how your motorcycle handles and how to make it better. Fleming all these years later, the black shadow remains a touchstone in performance motorcycling history. Everyday low prices and free delivery on eligible orders. Some tracks, like for example the nordeschief, or bathurst, are really bumpy, so they require suspension settings which can handle the bumps.
The figures we have come up with have generall y worked very well but individual riders may get better results with alternative personalized settings. Just after some advice on suspension set up for flat track, ive been told to go full soft on the rear so its squats in the corners. In this tech article circle track provides an asphalt chassis setup guide which delves into the critical elements of a well designed pavement race car. Honda s version is called prolink, kawasaki s is unitrak, and suzuki s is fullfloater. I have learned a lot about chassis setup on many different track surfaces with many different types of. This may involve revalving, replacement springs, oil levels, bottoming cone kits, linkages and various other factors that need to be considered.
Does anybody know how suspension should be set for flat track racing. Most good suspension shops should be able to give you optimum stock settings as that is where they should have moved on from to improve the shock and fork through internal valving modifications. Dirt track chassis and suspension repair manual by hp books. For those who have not heard of either dick guldstrand or herb adams, both of these have been involved with gm f bodies for many years. Remember the amount of traction offered by the race track or the amount of traction due to what tires you use, will influence the changes you will make. Sportbike suspension tuning 5 out of 5 based on 0 ratings. Mar 24, 2020 sportbike suspension tuning former sport rider editor andrew trevitts book sportbike suspension tuning. Racecars only have to do deal with racetracks, no speed bumps or washboards, just flat asphalt.
Previously i had begun this on another board and it got too large. This book, by americaas premier suspension specialist, makes the art and science of suspension tuning accessible to professional and backyard motorcycle mechanics alike. Available in 6 and 10 inch wheel diameters and a wide array of compounds and tread designs. Others say the only simple and pure racing left in todays massively complicated world. Dyno testing verifies compression adjustment range is increased by nearly 4 times, and rebound adjustment range offers nearly a 50% increase. He is well known for building and tuning flat track race suspensions and mx to dtx conversions. Boughner racing suspension boughner racing suspension. Camber matters optimizing track performance for strut. Durelle racing specializing in dirt track, supermoto.
The pictures are fantastic at showing the angles and really capture the feeling of how far we were hanging it out. Well, relatively flat asphalt, and that changes from one circuit to the next. Motorcycle suspension setup getting to grips with a black art suspension setup. However this many vary depending on your bike and manufacturer. Raising the link on the rear shock tower will keep the buggy flat through corners and have less camber rise. Sportbike suspension tuning by andrew trevitt, paperback. A more accurate way and generally the best you are going to get outside of a wind tunnel is to install linear motion sensors on the suspension to track frontrear ride height changes with speed. We baselined against our current offerings, and used cars ranging from a typical fm ii miata to the 500 hp targa miata.
The more rider sag you have, the softer the bike suspension will be. No one can predict the perfect set up, even for a spec formula where much of the suspension is fixed by the rules. The book even provides detailed troubleshooting guides for dirt, street, and. So if you need to get dialed for flat track, hes the man to call. Tuning a car for optimum handling is far from an exact science. Yet knowing how your suspension works and what effect the various adjustments have will help you get the best out of your riding. You are taken through each major portion of truck restoration, including the engine, suspension, chassis, bodywork, paint, brakes, steering, transmission, driveline, electrical system, interior, and more. Race techs motorcycle suspension bible motorbooks workshop. I have a yz450 and i have been told everything from full hard to full soft.
Suspension is probably the most misunderstood aspect of motorcycle performance. The springs resist the forces of input from the ground to the chassis, the suspensions motion ratio determines how the springs will operate, and the. Jegs hydraulic flat tappet camshaft for 19571985 chevy 262400. Seeing a book with the title shock absorber handbook and a photo of a racing car suspension on the cover naturally gets the juices flowing. Unfortunately there just doesnt seem to be alot of forum support for flat track like there is for mx. Lap times can be dramatically slower and overall safety for both street and race enthusiasts is another issue. Follow along as we setup the suspension in this 1985 chevy monte carlo stock car for dirt racing with a detailed explanation of hobby stock suspension tuning circle track magazine.
Lowering the link will add camber rise and make the car more forgiving when the track is rough. A compilation of articles covering some of the very best technical writings on the subject of dirt track chassis and suspension, this is one of the few books devoted exclusively to the subject. A top racing suspension company suggest that rear wheel rider sag should be around 3040mm and static sag should be around 510mm. Great for climb or flat track, the hoosier atv line is designed and built to win. Unfortunately, there is little sustenance in these pages. The books homepage helps you explore earths biggest bookstore without ever leaving the comfort of your couch. Veteran author kevin whipps shows you how to inspect, assess, and accurately budget your 19671972 chevy truck restoration project. Apply settings in small steps and try to do only one or two at a time. In addition to a full line of g3s custom series shocks. However, it does not provide specific solutions considering the car. Feb, 2009 host dave moss conducts a classroom session then takes suspension tuning principals to the track for practical application. The complete book of flat track racing autographed copy. Back in the day i raced a local half mile, clay track. The ultimate racing car chassis setup guide and tutorial.
The setting i have found that i like best is soft compression on rear 18 clicks out and firmer rebound 9 clicks out with the rear end lowered till im almost flat footed im 61, does anyone. This is a piece of metal that runs diagonally from one end of the beam to a point in the opposite spring mount or opposite control arm. 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. On high bite and smooth track, this will smooth out your cars steering response and make it easier to. Browse the amazon editors picks for the best books of 2019, featuring our favorite. Since the radius arms are fixed at the axle end, the caster angle changes when the suspension cycles up and down, shown in the figure above.
Radius arm designs have been used by ford and dodge among others. I noticed on his bikes that they seemed to corner much better after being lowered, but other than how to do it i am not sure how much is to much or what is ideal for flat track. Getting the perfect setup as motorcycles get more and more complex, its easy to think that the science behind the suspension on your bike is almost too much to understand. Trevitts book neither insults the intelligence nor baffles us with arcane. The suspension which was designed by lucien tilkens, became so successful that other motorcycle manufacturers developed their own single shock absorber designs. Each major component group of the car can be modified or upgraded for more performance, so you can build a better car thats balanced and refined. This brand new edition sticks to the original concept but is completely reworked and reillustrated, and continues that celebration today. Suspension tuning tips for type 1 swingaxle beetles, irs beetles and buggies street and autox my name is greg ward, i am a guest writer for aircooled. Tuning tips for streetstrip use on each of the four demon models are analyzed in detail along with the basics of combustion, air flow, emissions, fuel systems, and gasoline. Advanced race car chassis technology book bob bolles.
Former sport rider editor andrew trevitts book sportbike suspension tuning. One of the distinguishing features of the beam axle rear suspension is the presence of a panhard rod or track bar. Dirt bike suspension tuning tips dirt rider magazine. Mar 25, 2010 in this tech article circle track provides an asphalt chassis setup guide which delves into the critical elements of a well designed pavement race car to help you get prepared for the new season. Includes chapters on dirt chassis theory and design, chassis tuning, setup tips and driving tips. Guides such as this one below are useful for summarizing the impact that certain components have on a car. All tuning recomendations are based on starting at the baseline setup.
How to improve your motorcycles handling and performance, is one you must have in your garage if you have even the most remote interest in. This book also covers shock and spring tuning, 4link tech, chassis fabrication and setup, handling fixes, tire grooving, and much more. Try to find settings that make the vehicle comfortable for you. To get the best out of your bike it needs to be set up for the conditions in which you will be riding. I highly recommend it to anyone that wants to learn about suspension and how to set it up. I have lowered 3 bikes for my dad but have never gone below a 2 drop. Have known lots of guys that are capable of modifying the internals to lower the suspension themselves so you might be able to do it yourself. After an initial fitting and test, they brought their race trailer out to our local track and we spent two full days with a two fox engineers, three miatas and two drivers to finetune the valving.
Suspension set up for flat track tech helprace shop. Avoid doing several changes andor large adjustments at one time as this may well produce an undesired result and will make it more difficult for you to fine tune your car. Car tuning suspension brake setup road course circle. You can then compare the measurements at rest from those at the end of a straightaway to track how rakeride heightaero changes are affecting. The springs resist the forces of input from the ground to the chassis, the suspensions motion ratio determines how the springs will operate, and the shock controls the springs reaction to those inputs. 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. Boughner racing suspension takes care of all your suspension needs for motocross, ice, flat track, super moto, trail, enduros, hare scrambles, snowmobiles and quads. Then, by using average tire temperatures, you can balance the handling and maximize total vehicle traction in the same way.