Book on 4 link drag racing suspension designer

The mustang has the engine much closer to the rear end than the gm intermediate thus giving the rear control arms a completely different leverage affect. Apr 25, 2016 inside the box youll discover a special collectors book chronicling the. From infinitely adjustable 4link brackets to heavy duty 4link bars, antiroll bars, sway bars, wishbone and housing locator kits all the way to penske shocks, nitrogen fill kits, strange engineering components and more, you can find what it takes to put together a stateoftheart rear suspension. Turn to qa1s drag racing suspension kits for a fullvehicle upgrade that fits your needs. Sprint car suspension open wheel chassis setup guide. You enter heights above the ground and distance ahead of the front axle for up to 6 holes for all 4 brackets for your car, or any number of cars. The s w laser link features the optimum in tuning adjustments, 144 possible instant centers. Drag racing books drag racing software jerry bickel. Jerry bickel race cars gives racers the technology to win. Weight transfer calcs are not used in software calculations for vehicle stability control systems. Drag race 4link suspensions chris alstons chassisworks. Neither type of suspension is perfectly suited to allaround highway operation.

The four link rear suspension shown in figure 4 three link front left and four link rear. There is no comparison to any other 4 link software available. Book cover of wayne scraba how to build a winning drag race chassis and. The suspension on a vehicle serves multiple purposes. Drag racing suspensions chassisworks exclusive front crossmember features a tighter. A stock suspension car that uses 4 trailing arms is a true 4 link and can be treated, plotted, etc, as a true 4 link car so the savy racer looking for an edge can benifit from this information. The haltenburger linkage follows this same basic layout, with the drag link attaching to the pitman arm on the left, and the other end connects to the right hand steering knuckle. We use the upper links on a 4link suspension to enhance the forward bite. According to suspension theory that car should be very wheel stand prone, because the point of actual instant center is far forward in front of the car and is also below the theoretical line of instant center.

However, keep in mind that chassis roll causes the link angles to change. Ruffstuff specialties 3 link and 4 link suspension upper. According to suspension theory that car should be very wheel stand prone, because the point of actual instant center is far forward in front of the car and is. Which makes you faster, so you win, get famous, and live happy ever after. With 4 link suspension, the two functions of locating the rear axle and supporting the vehicle, are isolated. A short long arms suspension sla is also known as an unequal length double wishbone suspension. Afco racing and performance parts began over 30 years ago with a simple need for better suspension. The car used four specially manufactured 10inch diameter 254 mm wheels and tyres at the front, with two ordinarysized wheels at the back.

Introducing the 2020 corvette midengine sports car. Be sure to check out the other videos on alignment. Rear suspension design three link four link two link. A guide to tuning your fourlink suspension system posted by wayne scraba on april 23, 2015 at 2. There are 10 key factors to be considered when designing a suspension system, whether its for a single seater or sports prototype, and part of the skill of the designer lies in reconciling the conflicts between them.

Track all chassis information including corner weights and center of gravity. The upper arm is typically an aarm, and is shorter than the lower link, which is an aarm or an larm, or sometimes a pair of tensioncompression arms. Part 1 rear end alignment part 2 pinion angle part 3 preload part 4 anti roll bar part 5 ride height part 6 basic 4link settings. The civic type r is the ultimate embodiment of the honda racing legacy. When discussing highperformance automotive engines, a specific set of math formulas are used to develop and design powerplants to make more power at higher rpm levels and still survive. See our huge selection of power wheels ride on parts link power wheels all available replacement parts. Autoshoppingcenter 4 link kits universal rear weld on parallel 4 link kits suspension detroit axle new 5piece front suspension kit 1 outer tie rod, pitmans arm to steering arm, 1 tie rod adjustment sleeve, 2 outer tie rod, steering to steering arm, 1 drag link 4x4 only. A newer style that is only just now becoming stock in just a few vehicles and that works well as performance type of suspension. The upper 2 links keep the axle from rotating, keeping the pinion angle as constant as possible. Chassis master software leading drag racing chassis. The 4 link calculator lets you input, view, save, analyze and compare your 4 link rear suspension geometry. Tuning 4 link rear suspensions for the drag strip custom cars.

It provides a way to isolate the chassis and driver from the shocking jolts that the tires experience going over anything but a glasssmooth surface. General motors and ford factory four link suspensions are quite similar to a four link style suspension in a tubechassis racing car, except it is not adjustable and the control arms are not parallel from front to rear. The 4link wizard helps you determine the ic choices available with your fourlink bars so you can home in on the sweet spot and reap the benefits of a fourlink suspension. Hypersports 233 delmonte rd, arlington, wisconsin 53911 rated 4. Much more common are aftermarket adjustable four link suspension packages made for drag racing. Racing again highlighted the need for an improved track suspension to compliment the new tss front suspension that engineering analysis failed to identify. New pc tie rod steering drag link suspension kit for 1998 1999 dodge ram 1500 and 2500 4wd 4x4. If your rear tires are being forced down too violently you can angle the 4 link bars farther apart at the front to move the instant center closer to the front of the car. This suspension system has all 3 links running parallel to each other. But as youll see in the photos, adjustable trailing arms are the firstand bestmethod of setting up a triangulated four link for drag racing. Drag racing four link design greglocock automotive 27 nov 02 17. Oakridge hobbies is a full service factory authorized power wheels parts and service center. From your favorite model companies, such as revell, lindberg, and amt.

This configuration is common in general motors cars built in. 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. For those applications where the builder wishes to adapt a morrison 4 link suspension to an existing chassis, special rear subframe assemblies are available. 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. At once precise and powerful, the corvette stingray coupe and convertible have been completely redesigned from the ground up to deliver a thrill on every drive. Electronics flex plate shields ford center sections four links four link tube and tube adaptor kit four link packages four link rod end kits four link suspension and subframe kit heavy duty pro four link kits the new ultimate ii double adjustable four link top gun. Whether doing some simple upgrades or going all out, this book will guide you through the process. Right the drag race eliminator ii 4 link rear suspension featured doublesheer, adjustable lower shock mounts designed to allow finetuning of the rear ride height. Because the links are all parallel, theyre unable to laterally locate the axle assembly. Here you will find only the highest quality drag racing suspension components available.

Robs rod shop drag racing suspension episode 1 basic 4 link duration. This original coil over suspension later evolved into the rising rate proaction link suspension introduced on the 1983 srv. The best chassis shop for drag racing books and drag racing software to help with your race car setup and suspension tunning. Four link kits visit applied racing technology for a full range of qualtiy drag racing components. Used by many of the best teams in drag racing, chassis master is easy to set up and input information. No matter what type of motorcycle you ride, we have the right motorcycle parts for your bike. Metric fourlink suspension design circle track magazine. When combined with proper design and precision welding, the result. Upper link angles from 15 to 18 on the right and 10 to 15 on the left provide good forward bite. Four link components from tube kits to suspension packages in stock. Use our friendly online parts list which includes detailed diagrams, manuals, and parts lists to help you find everything from power wheels. Also, all mustangs from 79 on use a triangulated 4 link. Automobile ride, handling, and suspension design and.

Suspension components, front suspension components, rear suspension systems, rear 4link suspension drag race sportsman 4 link crossmember sportsman 4 link for chassis pro 4 link level 1 pro 4 link level 2 4 link suspension pro street ladder bar suspension pro street ladder bar suspension. Competition engineering standard series 4link kits c2017. If your car wheel stands too much, you can angle the 4 link bars closer together at the front to move the instant center closer to the rear of the car. New saleen options were also introduced with this vehicle including the shaker hood and intake as well as the wattslink style suspension. A skillfully engineered system with multiple geometry and setting adjustments for tuning and refinement, chassisworks torque arm g link suspension directly replaces the oem leaf springs and shocks for significant performance increases in cornering ability, throttle response, and braking stability.

The two upper control arms are angled with the two front mounts farther apart than the two rear mounts. The 4link calculator lets you input, view, save, analyze and compare your 4link rear suspension geometry. 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. 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. Multi link equipped vehicles are ideally suited for sports such as desert racing.

Benefits of solidaxle multi link suspension the benefit of the triangulated and doubletriangulated arrangement is that they do not need a panhard bar. This suspension is very popular in drag racing but sees little use. Much like a house, a good hot rod build starts with a good foundation. Calculates all possible instant center locations plus percentage of rise and squat. On a triangulated 4 link the uppers bars are placed at an angle to the lowers. The basics of antisquat, antidive, and roll center.

Tuning 4 link rear suspensions for the drag strip diy cnc, race engines, suspension. 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. Riley when carried to the extreme, todays emphasis on automobile mass reduction has significant implications for vehicle ride and suspension design. Computer program to simulate and analyze rear suspension 4 link setups for instant center, pinion angle and driveshaft angle change, antisquat %, and more for drag racing. Drag racing suspension leading drag racing chassis. This kind of suspension always has some kind of panhard bar to keep the axle. Today, were a manufacturer known for leading the industry with new, innovative and winning engineered parts for racing and performance suspension, exhaust, brakes and cooling. The eliminator ii 4link rear clip features ultrastrong, 3 x 2inch box tubing.

A good starting point for both links is 15 upwards to the front. For this coupe, bill went with total cost involveds model a chassis with an independent front suspension ifs. The ride and handling characteristics of an automobile. It provides a stable platform from which to control the vehicle.

Calculate the 4 link setup in any car, with any brackets in less than 15 minutes with this easy to use quartermax universal 4 link plotter. Competition products provides high performance engine parts, tools, and accessories for the engine enthusiast. You must install nohop bars at an angle because of the center section design. This variation of the fourlink rear suspension is a lot less common in factory cars.

The upright or knuckle attaches the wheel, brake rotor, hub, brake caliper and steering arm to the vehicle as shown in diagram ku1 below. Origins of weight transfer racing car suspension set up. Theres a 55 chevy that runs down in the florida drag radial events with bolton suspension parts and can run 7s. Jerry bickel race cars, in cooperation with etc, inc. For windows 7, 8 and 10 with opengl see the faq for more details faq for more. And as a result, a lot of high performance ford fe engines history was written in a very short time. Costin and phipps is said to be the only racing car book on f1 designer gordon murrays bookshelf, in the 1970s. Like the front system, the vertical separation of the links resists the drive and braking torsion. The tyrrell p34 project 34, commonly known as the sixwheeler, was a formula one f1 race car designed by derek gardner, tyrrells chief designer. 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. Suspension tuning, troubleshooting, design and discussion. In the latter case the suspension can be called a multi link, or dual ball joint suspension.

The bottom 2 links keep the axle in place front to back. When building a 4 link suspension, the lengths of the links, their positioning, and the angles at which they are mounted, will all determine how the suspension affects the vehicle chassis under acceleration, braking, and cornering. How to build a winning drag race chassis and suspension. Thats where i started, and i apprenticed under a guy named mark constantine at autofab racecars. The triangular layout of the top links resists sideways motion, and the lower links resist thrust. I use this program almost daily, both in my design. Ohlins is the number 1 suspension manufacturer of suspension for motorcycle and cars within aftermarket, oem and motorsport with over 300 motorsport titles.

Winning chassis design and setup for circle track and. Susprog3d is the premier kinematic suspension design and analysis tool. At the hit, the tire wads, the suspension extended, all is good and we are getting traction. Perfect for the person who changes platform and wants a little bit more reinforcement on their 4 link. Drag racing, circle track, muscle car and high performance. Relive the yesterdays of classic drag racing from the 1960s and 1970s with super stock, top fuel and funny car models. All the parts within any engine are designed and engineered using the appropriate mathematics to function efficiently and be durable.

Design of three and four link suspensions for off road use. Others use a triangulated fourlink design with coil springs, like the gm. Like all other morrison frame components, the subframes are individually cadengineered for the exact yearmakemodel vehicle. Competition engineering standard series 4 link kits provide rear suspensions that will give you the freedom to make incremental changes in your cars point of instant center the adjustable point that determines weight transfer, for headsnapping launches. The rick jones chassis tuning guide, second edition. Drag racing model kits are some of the hottest kits around. Weve got competitionproven crate engines, performancematched top end kits, and complete rotating assemblies from the biggest names in the industry. Lister storm lmp designer reveals his trade secrets for suspension design. This article explains the workings of the 4 link suspension and the tuning methods used to maximize its performance under various track conditions. The 352 and 410 were dropped after 1966, and the 390 and 428 continued as the only fe engines in passengercar production from 1968 through 1970.

Its a testament to more than 70 years of engineering in pursuit of our dreams. Also, the saleen pj was produced with the 3valve saleen 302 naturallyaspirated engine, which produces instant acceleration and torque on cue. Following the antiroll bar, you can use adjustable shock absorbers front and rear, front suspension limiters, and to a lesser degree, specific coil spring rates to get the car to hook up. Learn how to choose the right rear suspension design that fits your custom truck best. Springs take care of supporting the vehicle which leaves the links free to deal with locating and articulation. Rear brackets, uppers, lowers, or both, or all 4 sets. The 3 link i designed for my car has reached the quoting stage for some laser cut parts and i want to double check something before i commit my green. In this car craft rear suspension tech guide jeff smith explains the differences between setups and how to set up your musclecar for maximum traction on the street and while drag racing. Available in two different levels of performance, these drag racing kits offer easy, boltin installation and seamlessly work with whatever oe component each piece attaches to.

This allnew midengine sports car is so much more than next generation its next level. There are also a few designed as replacements for leafspring suspensions in early camarosfirebirds. Aside from building hot rods, i also build professional drag racing chassis. The housings were available in widths ranging from 22 inches all the way out to 62. With any build like this, said bill, there are always small changes and additions that come up, but we feel that we hit the nail on the head. Product tech chris alston explains drag racing suspensions. Competition products performance engine parts, racing. Tuning 4 link rear suspensions can make a car launch quicker and use less horsepower to do it. Put that same nohop bar on a mustang also a factory 4 link suspension with the same horsepowertoweight ratio and it will hook for about 6 inches and then blow the tires off. In it, keith duckworths calculations for weight transfer are presented in complete detail. Most of our 4 links are sold in complete rear suspension packages.

Beyond that one basic function, the two designs begin to differ. The left knuckle attaching point tie rod end is connected to the drag link approximately 12 inches away from the right hand knuckle. Four links chassis engineering drag racing parts, drag. Pushrod or pullrod, the difference as the name suggests is the whether the rod push up to the rocker or pull down to the rocker pull rods were first brought to formula 1 by gordon murray with brabham in the 70s but now all formula one teams make use of the push rods, as pull rods are quite hard to implement in a high nosed car. Designed for ease of installation, it greatly reduces the time and effort previously required to backhalf your car. Then the rim starts to rebound back toward the chassis.