These nitrogencharged, 10stage velocity valving shocks offer superior damping for both on and offroad driving. This kind of suspension always has some kind of panhard bar to keep the axle centered. Page 2discussion area for general topics regarding suspension tuning. This article explains the workings of the 4link suspension and the tuning methods used to maximize its performance under various track conditions. No part of the program or code shall be reproduced for commercial use. Hundreds of photos and illustrations illustrate what it takes to design, build, and tune the ultimate chassis for maximum cornering power on and off the track. The four link rear suspension shown in figure 4 three link front left and four link rear right uses four primary links and no secondary links. Like any link suspension, the pivots must be free to move without binding on a three link. The parallel 4link kit is very easy to install and is a good choice for many installations.
Properly designed upper aarms let you crank some muchneeded positive caster and negative camber into the front end, which improves road feel and performance. Highperformance handling for street or track and millions of other books are. How to buy and setup a four link 9inch rearend hot rod. Though some of these books are pretty heavy, they do help explain the theories behind fourlink suspensions, but mostly when applied to street cars and not offroad vehicles. They include the 4 link with frame and housing brackets, coilover rear shocks with springs ratematched to your application and a choice of a panhard bar for street use or diagonal link race. One point being the body or frame of the vehicle and the other point attaching to the knuckle, upright, axle or another link. Heavy duty rod ends are a must on any 4 link that will take right pedal abuse. It will utilize a speedway motors gcomp watts link to keep the rear end right where it needs to be, and adjustable coilovers. Suspension components, front suspension components, rear suspension systems, rear 4link suspension drag race sportsman 4link crossmember sportsman 4link for chassis pro 4link level 1 pro 4link level 2 4link suspension pro street ladder bar. One of the most common questions we get about suspension setup and tuning is how 4link geometry affects the performance and handling of a vehicle. Theres an abundance of books out there on sport bike riding technique by a lot of authoritative personages, but, up to now, not a single one that i know of thats devoted strictly to sportbike suspension set up and tuning, which is the other half of the equation for going quicker. I have a dw8 on short bars on the both side and im having the same problem.
Drag race 4link suspensions chris alstons chassisworks. Jul 08, 2015 part 1 in our series of tutorial videos that explain how to set up your rear suspension covers rear end alignment. Ive been involved in a discussion about using a 2link suspension on a street driven truck. Press the space key then arrow keys to make a selection. I can run them back down and get back up to about the lr tire and when they get up on the bars they jump out there about 15 25 ft and they cat and mouse game is on. The long upper links provide great pinion and ujoint angle control. Adjustable wheelbase depending on how you mount the axle to the link 3. Sold by freebird trading and ships from amazon fulfillment.
On my 68 camaro i have dse leafs, bilsteins, and tubbed out back. Springs take care of supporting the vehicle which leaves the links free to deal with locating and articulation. Book depository books with free delivery worldwide. This information applies only to 4 link rear suspensions having links floated. The traditional way the 4 link is setup on off road rigs is to have 2 links holding. Of all of the systems, the most common youll see today is the equal length fourlink, probably followed by the ladder bar. Sep 01, 2009 the metric four link suspension design is a bit different than most other rear suspensions. Previously i had begun this on another board and it got too large.
I dont wanna spend as much as the ld 3 link cost although it would be nice. This suspension system has all 3 links running parallel to each other. Choose from jegs, competition engineering and other high strength 4 link suspension kits or replacement parts. From planning a course of modifications to installing parts to tuning handling. Enter your mobile number or email address below and well send you a link to. Quartermax 4link kits offer the highest quaility and best value of any kits on the market. Links may be made to the site, but the product may not be redistributed in any way other than by direct download from. To truly explain a fourlink, we would need this entire magazine and a few engineering degrees, and even then there would be things that would be missed.
What are the major obstacles and are there any outsidethebox solutions bent ds upper link, high clearance oil pan, shorter upper arms like the rear, etc. Mopar muscle cars handling and performance upgrades. Quickly change instant centers without affecting pinion angle, preload, or wheelbase. The strongest defined by the two upper control arms. The jacobs ladder car is a z link or better know as a trailing arm type rear suspension. This program is provided free of charge for personal use in the assisting of suspension calculations. Instant centers, long, short, high and low various approaches have given different results and with so much attention being given to the intersection point, the location of the bars is rarely mentioned. But 4 link looks the best option once it is fitted.
If it is hard to put all of the bolts in the mount holes, put in as many as you can then use a. Page 4discussion area for general topics regarding suspension tuning. Both the guys have built 3 links before and know quite a bit. Like the front system, the vertical separation of the links resists the drive and braking torsion. The 4bar and 4bar zlinks are just beating me off the corners. The rough country 4inch long arm suspension lift kit includes a pair of premium front and rear n3 shock absorbers. If you are looking for the right suspension upgrades for your car we can help you determine that package. Yes, that is confusing, the picture gallery you are looking at actually had pictures of both the panhard bar car and the jacobs ladder car. Chassis engineering explains the complex principles of suspension geometry and chassis design in terms the novice can easily understand and apply to any project. This information applies only to 4 link rear suspensions having links floated on the rear axle with birdcages with all links running forward. I personally use all of these on a daily basis and highly recommend them. We know that retaining great talent is key to our success and company growth. Learn more about n3s specifications, faq, video tutorials and guides, find user manuals, and download the dji go app. In automotive suspensions, a suspension link, control link or link is a suspension member, that attaches at only two points.
Tuning for the track suspension tuning tech modified. The rough country 4inch long arm suspension lift kit with premium n3 shocks is the perfect suspension lift kit for your wrangler jk for maximum on and offroad performance, as well as a dynamic stance. Tuning the four link has to do with the relationships of the ic, cg, and neutral line. Apr 09, 2012 our 2 link is 50 long, we prefer a 2 piece drive shaft. By having nonparallel links we have one sides top link chord length shorten in roll bump while the opposite sides top link shortens at closer to the same rate while in droop. With 4link suspension, the two functions of locating the rear axle and supporting the vehicle, are isolated. Part 6 in our series of tutorial videos that explain how to set up your rear suspension takes a look at basic 4 link set up and adjustments. Mar 03, 2014 how to setup your 4link rear suspension. Metric fourlink suspension design circle track magazine. Suspension setup and suspension settings and fine tuning. Adjustable 4link suspension system is infinitely adjustable with 18 inch increments allowing hundreds of instant center options. Before you install your offroad suspension parts, access a link calculator.
Jan 03, 2012 how do you get the most from your car and continue to lower your lap times, aside from more seat time and coaching. Can you guys tell me how you get so much travel or steer in your left rear on a 3 link suspension. A guide to tuning your fourlink suspension system posted by wayne scraba on april 23, 2015 at 2. There are 4 link bars mounted from the axle to the frame holding the axle in place both forward, back, and side to side. Add a 4 link suspension kit to your car or truck to add performance and adjustability to your suspension. This setup if the easiest for people to understand and wrap their heads around the concept of. Try to find settings that make the vehicle comfortable for you. Compare universal johnny joint style front 3link conversion. I looked into it all a fair bit, but personally i prefer twin lockers. This is a great way to upgrade from original leaf spring suspension. Most of our 4links are sold in complete rear suspension packages. Design of three and four link suspensions for off road use. Install spherical housing bearings into the upper control arm mounts on the rearend housing. We must agree with the current majority that a fourlink suspension with coils, coilovers, quarterelliptics, or air springs is definitely cool, and that is the most common argument for.
With this tool, you can determine how certain numbers will affect your. Upper link axle mount, if using the ffr moser axle skip to the next section since the upper link bracket is welded to the axle. To address the needs of the hardcore protouring and gmachine market, art morrison has released a 3 link rear suspension. Over the years, drag racers with door cars have gone through all sorts of suspension arrangements. Swaybar the rearend to force the front to balance the flex with the front suspension and youd be set. Four link kits visit applied racing technology for a full range of qualtiy drag racing components. And then you understand the meaning of the word, translated to your native language. A list of the bestselling car suspension books of all time, such as car.
The entire rear suspension was removed to make way for the control freak fourlink rear suspension setup. This information applies only to 4 link rear suspensions having links floated on the rear axle with all links running forward. Since our existing unit was powdercoated and needed to be narrowed, it was better to start fresh rather than have to remove the finish. A newer style that is only just now becoming stock in just a few vehicles and that works well as performance type of suspension. Tuning 4 link rear suspensions can make a car launch quicker and use less horsepower to do it. I will give the jacobs ladder car its own picture gallery as soon as i get a new car to take more pictures of. Industry best leadtimes, quick installation and responsive customer support, combined with the reliability and durability link is known for, results in.
Tuning your fourlink suspension system drag racing. Choosing a selection results in a full page refresh. Thank you for reading our comprehensive suspension setting guide many people just concentrate on lowering the car and assume that stiffer springs and the lower ride height will improve handling. This lift kit provides exceptional articulation that manages to keep your factory ride quality and suspension geometry. Lift bars, slapper bars, super stock springs, leaf links, ladder bars, threelinks, fourlinks, and torque arms there may be others too, but its a start.
Use a sandroller bit or something similar to sand down the i. Whether youre wanting to run coils, coil over shocks, or. Which makes you faster, so you win, get famous, and live happy ever after. The stock rubber poly bushings and shells must be fully removed down to the bare housing material first. Be sure to check out the other videos on alignment. One link and 3link front suspension homemade modified.
This article explains the workings of the 4 link suspension and the tuning methods used to maximize its performance under various track conditions. A fourlink suspension uses links to locate the axle from moving side to side and front to back, while allowing it to travel up and down and articulate. If you would like to buy a electronic copy of the whole book, please follow this link to our dedicated web page here. In the following article well share some installation tips to facilitate your upgrade work. Be sure to check out the other videos on alignment, pinion angle, preload, antiroll bar and ride height if you havent already. Use leftright arrows to navigate the slideshow or swipe leftright if using a mobile device. Be sure to check out all of the other videos in the series. A three link suspension functions very much like a parallel four link, but it can run high antisquat settings and short svsa lengths without incurring additional binding. Suspension tuning is a critical part of getting the ultimate performance package, it is even possible to have a more competitive car then a rival with superior upgrades by having a well balanced set up, which maximises the available grip levels. Test fit the two halves of the upper arm mount together.
The 4 link does have bind that isnt present in the 3 link, but most importantly, the 4 link has high conflictingfighting roll center. A definitely must buy for all those who want to take a step forward on their modern bikes suspension setup. Im building a sportsman car and we can run 3 link with a long or short spaniard bar or a j bar. But, for now, well focus on the threelink fabrication. This information applies only to 4link rear suspensions having links floated on the rear axle with all links running forward.
Simply put, they are remving the leaf springs, and using 2 paralell rectangular bars, fixed to the axle on one end, and with bushings at the forward chassis end. Allowing for more rear end articulation without any bind and combined with an adjustable watts link track locator, this is the perfect suspension for serious corner carving and track days. Ive been searching the forum for a while now trying to figure out what rear suspension is actually needed. The guide to building or modifying a competition car. Apr 10, 2018 we explain the difference in 4 link and 3 link suspension. A guide to tuning your four link suspension system posted by wayne scraba on april 23, 2015 at 2. Compare extreme duty universal double triangulated 4link.
Ease of setupadjustment over a 4link i think a 3 or 4 link front with a 1link rear would be a great combo. N3 is the intelligent dialogue company n3 is an outsourced inside sales firm. For a practical sample i chose the very popular locost 4 link rear trailing link. This devotion started in 1980 with one truck driver searching for a better ride. For a practical sample i chose the very popular locost 4 link rear trailing link setup as per the book specifications. 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. Tech center support install articles tuning guides worksheets product development and tech shop tours. When bolted in place, these jigs maintain the proper spacing between your 4link brackets while you weld them together. Links family of auxiliary suspensions provide distinct advantages of convenience and performance for body builders, fleet owners and drivers. Fixedlength offset arms are available from firm feel. The 3link is our raceproven, and streetable upgraded solidaxle rear suspension.
Tubular upper aarms are as popular for mopars as they are for all the other muscle cars, and for the same reasons. Tuning your fourlink suspension system drag racing 351c. As a fastgrowing firm, n3 offers great advancement opportunity including the potential to crosstrain. The stock mustang 4 link suspension is poor in a mustang thats way heavier with a much higher cg. Our years of experience have built a knowledge base that is hard to find elsewhere. In this article well cover what we consider to be the three most important elements. This 4link kit features our billet adjustable shock mounts, which offer a wide range of adjustability over a fixed shock. There are many options when it comes to suspension. Fine tuning your suspension setup for your driving style. Whiteline performance suspension activate more grip. When rrt was founded over 12 years ago, we began as a suspension design and development company. The rick jones chassis tuning guide, second edition.
Shock tuning and hydro bumpstop tuning tj stretch episode 7 duration. Part 6 in our series of tutorial videos that explain how to set up your rear suspension takes a look at basic 4link set up and adjustments. Angles may require tuning, slider on shaft may require replacement, shafts. Niva 2121 niva 212 niva 21214 vaz 21012107 laika riva vaz 2108,09,99 parts of the ussr car tuning accessories engine tuning tuning suspension tuning the appearance and interior priora kalina. With over 50 years of drag racing experience the joneses cover everything from the proper way to haul your drag race car to the importance of utilizing data acquisition in this second edition of the rick jones chassis tuning guide. This configuration is common in general motors cars built in and around the 1980s as well as some ford. A four link suspension kit will optimize the performance and overall ride quality of your rig by balancing triangulation, increasing the force of power, and giving you maximum control installation tips for adding a four link suspension. My question is that i cant find, how much longer does you upper have to be then your lowers. The trend these days is to ditch the leaf sprung setups in favor for a more up to date setup. The triangular layout of the top links resists sideways motion, and the lower links resist thrust.
At n3, we are a performancebased organization that rewards creativity, hard work, and success. We explain the difference in 4 link and 3 link suspension. Part 6 in our series of tutorial videos that explain how to set up your rear suspension takes a look at 4link basics, set up and adjustments. If we cant get to see your car, email us, and we can send you the sheets to measure up your car your self. N3 specs, faq, tutorials, downloads and dji go dji.
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