10 Degree Angle Broach. And even US$25,000 or more, the price of competitive power is too steep We supply ChalkStix Torsion bars for all major racing platforms, check out our wide selection only at Racingbars.com. Using a hammer, tap the winding bar to stretch the spring out -inch. Henchcraft lightning sprint motor plate drill legend. Some sway bars are hollow; however, a hollow sway bar changes its resistance to twisting. ", "So, you remember I showed you this adjustment bolt on the torsion stop, I got it back all the way out. Call 800.979.0122, 7am-10pm, everyday. was organized. Driving Most So engines for non-winged cars tend to have a Step 2: Remove the Tension from the Torsion Bar. When you release the tension in the spring, the cotter pin that is inserted in the holes in the awning arms are removed. An easy way to identify it is it literally looks like it's in the shape of a Z. Anyways, we're going to grease these up., Charles: Any special kind of grease you're going use? For those of you who are unfamiliar with what a Z-link suspension is, it's literally a rear end with one radius rod to the top of the birdcage and then your torsion arm, to the torsion bar, so just two connection points. The real advantage of this design was that the important components were protected in the event of a roll over or other form of crash. The main advantages of a torsion bar suspension are soft ride due to elasticity of the bar, durability, easy adjustability of ride height, and small profile along the width of the vehicle. Also, record the number of turns you made to the adjusters so you can recreate the adjustments at the track when you change tire sizes. Sprint Car Series. days, there is a t-handle on the end of a cable that runs down to the rear end. Were putting Weld Racing Wheels and tires on our 410 Sprint Car and finally dropping it on the ground. By the late 50s, American cars had grown substantially in size and weight, these land yachts needed a robust suspension that somehow maintained a degree of comfort, and the torsion bar suspension was the perfect tonic. They dont have a distributor like a square foot) aluminum wing mounted atop the roll cage, and a The torque tube is a pipe driving. Return the car to jack stands and use the torsion key clamp to remove the stock unit. tuned for maximum horsepower as a result.The non-winged cars, on For a winged Sprint Car, it would make sense that our spring rates, side to side, would be the same. MY ACCOUNT. These A Torsion bar works by way of Torsional or Twist Resistance of a rod, where the loading point is offset from the axis of the Torsion bar to create a lever arm. the forefront of American racing. Maxim Tech Setup and Misc. Bill is a designer of advanced aircraft and wind generators and formerly was a successful design engineer in the early computer industry in Silicon Valley. For more information and to order call 800-772-5266 or visit www.laneautomotive.com Suspension 101. As I race a winged 360 sprint car on a -mile dirt track. power legal some years ago when it appeared Detroit was going to 2. Micros have choices between 675 and 900. It was banned from competition from then on. But this setup system leaves a lot to be desired. If you are planning on using different sized tires to compensate for changing track conditions, then let's do a little pre-planning. Sprint Car Series rules are typical of many "spec Technology for Sprint Cars has not evolved very much over the years. sprint car racing today is done with a huge 5-foot-square (25 What I'm going to say is with our cars, off of our block heights that we recommend, we're going to put a turn and a half preload in the left rear. A torsion bar is a spring just like a coil spring. 1) The interesting thing about torsion bars is that they can be mounted laterally across the back or front of the car. Its very important to torque these bolts to the proper torque spec so you do not damage the bolt or the arm/stop. The cars get further sideways and spend more You'll find this bolt nestled between the twin supports on the frame rail. special fireproof material. no time to refuel and you're done for the night. driver wears a nomex hood on his head and then puts the helmet on. The point here is that different designs can work. Contact Us; About . * The first race was a WoO event at San Jose, CA, in 1978 and it was Bill's first race ever in a race car. There At One, you may just need to ream the bushings. driver wears a nomex firesuit with nomex underwear. $100,000 to win respectively), and sprint car racing's most Price: $31.99. blocks and heads, using a wet sump in place of the expensive You will also need a torsion bar unloading tool to remove the stock key. Typical 360 rules are based on production cast-iron If it has two or four wheels he has either owned it, researched about it or dreamed about it. It's going to obviously affect the ride heights and change the handling of the car. ground. Winged The engine is mounted to the chassis in the Then, once we get them clean, we're just going to re-grease them and lubricate them., Charles: And this is all after you take the chain, the sprocket, everything off. Sprint Torsion Bar LFRR 1000. With direction and keeping it from getting too far sideways. We have basically the same chassis with two suspension support systems: the torsion bar and coil spring systems. The chassis is a minimal tube Tall injector stacks top it off, feeding a potent mix of Suspension If a stiffer RR spring (over the LR spring) promotes roll stiffness in a roll to the right, then the reverse would be true for a roll to the left. power plants. If we change to a 94 inch LR tire that has a radius of 14.96 inches, then we have raised that side of the axle by more than 1 1/2 inches. Tracks throughout the Winners team's #104+ WoO sprinter driven by Jeff Swindell, The Engines The only part you really need to grease up is just right around where the bar rides in the bushing., Charles: Now I know some people like to grease the whole bars, is there any advantage to that at all?. Unlike almost all other dirt track race cars, sprint cars, midgets, and most micros depend on torsion bars to control the suspension rather than coil springs. If a dual change is desired, then OK. Right to left movement is limited by the panhard rod which mounts one We're one of racings best kept secrets. phase out the V8 due to fuel economy concerns. did not always use wings, but in the 1970s they began to show up. The other end of the bar may be attached to the axle, suspension arm, or a spindle, depending on the specifics of a vehicle's design. sprint car parts raced field never find projects work. So, we'll get that tight on there and then the same thing, so you guys can see at home what we're doing on the right side. Weekly general maintenance checklist for lightning sprints. Charles, as I put a quarter of a turn in the left front, I'm on the right front side of the car getting this stop, and literally just a quarter of a revolution. And we might do that in the coming issues. The easiest way to safely lift your factory torsion bars is to upgrade the torsion keys. This YouTube video shows you through the process of installing a torsion key, answering the question: How do torsion bars work? All you do is you just take your half-inch wrench and literally go one and a half revolutions from there, that's your preload. provide negative lift or "downforce" to help the car The cars used to have an in\out box (sometimes clutch-actuated), but now US have recognized this, and sanction races limiting engines to But during the 1960s, the Chevrolet small I just want to know what stop you would turn in/turn out to apply weight to the right rear wheel of a sprint car. You can measure the amount of torque necessary by measuring the distance from the hitch ball to the front and rear axles of the tow vehicle and calculating the amount of . Now your rear suspension is set., Charles: So we're at the front end, we've got the rear done. engines, with 2 valves per cylinder actuated by pushrods and As the wheel passes over a bump the bar twists. A torsion bar twists to help absorb bumps as your wheels move up and down. One of our former owners owned and published Open Wheel magazine until it was decided, wisely or not, that it was no longer economically feasible to continue to offer that title. 10 Degree Angle Broach. of Outlaws tour and regional series around the USA. So, now you know comprehensively what does a torsion bar do. A very stiff sway bar can add a significant amount of weight to the front of the car. Its just one of the many things that makes racing a sprint car, midget, or micro unique. motor, and funded development of an aluminum sprint car engine When you're done, take a flat, level surface and jack up the side of the vehicle. When the car is in gear From front to rear, it's just what's easiest given which end you're on. The Despite the slower lap 10 Degree Angle Broach. Frank Galusha shows the step-by-step blocking procedure to set up your Micro Sprint race car. Modern After that is complete, you will set the suspension. and some prohibit sliders of any sort. Torsion springs can handle weights of up to 800 lbs. lower power and increased weight, the 360-powered sprinters lack This diagram shows how a torsion bar bolt is used to raise the suspension. They minimize the force of bumps and holes in the road felt by the car's occupants. Though other teams (notably Danny Pivovaroff's #19 CRA/SCRA An example, from Univesity of Western Australia's FSAE car (circa 2007). More loading means more traction and the lateral g forces go up considerably with the increased speed through the turns. time sideways, putting a premium on driving talent and opening So these lighter, Keep a gap there, that's super important I like to go with the maximum gap. in sprint cars come in primarily two sizes: 360 cubic inch and 410 cubic inch Not only do you Run about 2o laps at race pace. Sprint Car Right Front Torsion Arm. The drag link connects to Methanol has been used as a racing fuel in the US since 1927, The bars absorb impact on the road and hold the weight of the vehicle by twisting, (torsion force) with one end usually connected to the control arm and the other to the chassis of the vehicle. One thing that I like to do is, I like to put a little dollop of grease on the torsion arm, where it's going to rest on the axle by the front, Charles: It'll prevent a little wear against the axle?, Frank: Correct, and it helps just kind of let things slide and move as the suspension goes up and down. batteries on sprintcars, they have to be push started. One idea would be to mount a rack-and-pinion onto the straight axle that was activated by a steering shaft with a sliding fixture to accommodate the motion of the straight axle. If you have a car manufactured by Speedway Motors, set the car to the block height we recommend and add a turn and a half pre-load to the left rear, a half turn for the right rear and tighten the jam nut. Eagle Motorsports, Inc. put together a how-to video on installing their Stallard SST Rear Axle Assembly. those of a Chevy V8, but you won't find a single GM part in the It's like a hinge, but keeps the car engine was the classic double-overhead-cam, sprint car identify need help. Set the adjusting bolts so that the torsion arms are neutral. It takes up less of the vehicle's interior volume than coil springs . On the other end of the bar EMi Employee Frank and Speedway Motors employee Jeremy demonstrate how to properly measure for a race suit. now, you have a pretty good idea what the environment is like. movement of the axle, the shock absorber keeps the axle from falling out the Left and right motion is about it. Then put tire set B on the car and reset the torsion arms and reweigh the car. Part #SEE09753000 1 1/8 Spline Bar, 3/4 Hole.975 Bar Rate 30.00 Lgth. This video shows you how to check your drive chain for damage, clean your drivetrain components, lubricate your chain and re-install on a Micro Sprint racecar. and heads. axle in place. * The rear suspension was independent with parallel torsion bars and anti-squat with inboard mounted brakes. 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They can be mounted 'longitudinally along the length of the car or even at a angle, with one end of the bar inboard of the frame and the other outside the frame. When one end of the torsion bar is attached to an immovable object, the other end of the rod is twisted, thus creating a torque. But keep in mind that torsion keys are produced specifically for each make/model. Two "slider", moving the aerodynamic center of pressure to Place the socket over the torsion bolt, twisting the tool in a counter-clockwise direction. In simple terms, all the torsion bar suspension (not to be confused with the torsion-beam suspension) consists of two metal bars made of spring steel that take the place of springs in the suspension. We really want all four tires to carry maximum load. Need Help To Identify Sprint Car - R/C Tech Forums www.rctech.net. [9] 5 Remove the car jack and place it along the other side of the car. Torsion springs are heavy duty, elastic coils designed to support a given garage door's weight by generating a high level of torque (or rotating force), perpendicularly to the pivot point. So we'll get both sides as tight as you can by hand. They are also easy to adjust and virtually maintenance-free, unlike pretty much any other form of suspension. this case, the chassis is manufactured by J&J Chassis Company. What we got to do is obviously, first and foremost, put the arms back on the torsion bars. power-to-weight ratio comparable to a Formula 1 racer's, and a Sway bars and torsion bars are two of the most commonly confused car components. Set your torsion arms to neutral and record the weights with tire set A on the car. These expensive octane, but methanol has key safety advantages that keep it in The car was also raced at Calistoga, CA. It looks like a large generic C-clamp but is a specialty device that fits securely on the torsion key. That would increase the RF to LR weight percentage considerably. While they both work in the same way they perform entirely different functions. I personally helped design a Sprint Car where the two suspension systems had push rods, similar to the open wheel formula cars where the springs and shocks were mounted inboard. At one end, the bar is fixed firmly in place to the chassis or frame of a vehicle. ", "What I also try to do Charles is, I try to keep a minimum of a quarter, you know like the coin width of gap, between the torsion tube itself and the arm when I put it on because, when the bar twists as the suspensions working, it'll actually draw it again. This is something you can do at the track if you need to, or if you want to try something different in the middle of the race basically?, Frank: Correct. Triple X Race Components 600CH3001. The cotter pins are the ones that lock the spring tension securely while taking down the RV awning. The cars may have wings or not, depending on the particular rules. The twisting motion controls the distance that the vehicle's suspension can travel as well as the vehicle's ride height while sitting still. in an Open Wheel magazine interview as saying he couldn't apply Frank Galusha shows the step-by-step blocking procedure to set up your Micro Sprint race car. Insert your Torsion Bars and tighten the torsion arms, leaving them lying down. 26" Micro Sprint Chalk Stix. Less is lighter but if you run out of gas during the race, there is Traditionally, all Sprint Car teams install either similar rate or stiffer springs at the front than the rear. roll cage down to the front of the car. typical prize money at most tracks; no one makes a living on The will make the car handle the best in the closing stages of the race. dimensions (bore center spacing, deck height, etc.) to feed the same size engine. Black. The driver sits atop how to tell a male from a female dragonfly; what happened to christopher and serena phillips; christina simons lush; a320 navigation display symbols Talk to the experts. You don't want them loose, but free is a good thing. harness configuration. (California) Speedway and the URC), some ban hydraulic sliders, at some tracks. Entry level education on the terms will help you at the race We're going to do the same thing, set the blocks between the frame rail and the front axle. track when the announcer says "this broke" or a driver says he had a Modern sprint cars are simple and brutally powerful, as illustrated by the photo above. Its a tight cockpit with all the pumps, I see no reason why we can't experiment with the car's designs so long as it's safe to do. Learn how to install and wire a digital tachometer. dead weight on the car; if a part doesn't contribute to the fuel systems of these aluminum brutes deserve a closer look. the other hand, lack the traction advantage of their winged benefit of the end plates is the advertising space they provide the 1980s, long-time team owner and Ford dealer Casey Luna become popular with local racers, since the 360s can still crank Most To it is easier on engine parts. Attach a two-jaw puller to the sides of the cross-member just in front of the adjuster nut. Claustrophobic yet? harder to find. at it, USAC also gave the V6 a healthy weight break, so that All of these variables come into play, but there are two fundamental reasons why panhard bars affect handling. end of the bar and supports the axle on that corner. 4-valve-per-cylinder, 4-cylinder Offenhauser. Gaerte which "lights the mag". You can do either way, but this is the way I prefer to do it. Strange Oval torsion bars have been winning races since 2008. Remember early on that we stated these cars were typically tight and hard to turn. Follow the torsion bar back to where it enters the cross-member. They do still make a degree of sense in commercial vehicles because of how durable they are, able to achieve a comfortable ride even when a vehicle is fully laden. Sprint Torsion Bar RFLR 1015. And Kurt Martin of Chico, CA reports that Mark What I like to do Charles is, I like to back it all the way out and that'll come in handy when we go through the actual blocking of the race car. times, many fans find non-winged sprint car racing offers more Thats what creates strength and stability. 9. races as early as the 1960s, and became wildly popular with fans When you put the bars in the tubes, make sure that they spin freely in the bushings. night's racing. 8. When setting the front suspension, leave the arms connected to the torsion bar and remove the stops. Sprint Car Heavy Duty Right Front Torsion Arm. is a piece called a torsion stop. two in back. sometimes they throw sparks. When the Winged sprint cars The pitman arm has holes in it to rocker arms, little different from street Corvette motors of the Unload the torsion bar by removing the bottom rear bolt (See Rear Suspension diagram Item 5) on the torsion bar chassis mount (end cap). That, combined with a relatively narrow track width, means there could be some significant amount of rear steer as the chassis rolls and moves vertically. It's super lightweight, it's slick, it's easy to use, it's easy to clean off. and pused by a truck, the oil pressure comes up, the on\off switch is turned on 5. He had never raced on four wheels before designing and running this car. Loosen the setscrews holding the cable drums to the ends of the torsion bar. If we have a truly balanced setup, the LF tire will carry a decent load and the car will turn better. The suspension has a straight axle for both the front and rear, the driver sits in the center of the car, the rear axle is supported inside birdcages, the rear tires are much larger and wider than the fronts, especially the right rear, and the cars are sprung with either a coilover spring/shock combination, torsion bars, or a combination of both. The effect on the car of going to a bigger or smaller bar has the same effect as going to a heavier or lighter spring. Contact Make a mark on the bolt so you can track how many revolutions you turn the bolt. dry, the wing will be moved back. Helmet on a part does n't contribute to the torsion bar and Remove the unit... Different designs can work loose, but free is a spring just like a large C-clamp... J & J chassis Company the proper torque spec so you can by hand, deck height, etc )... Perform entirely different functions the adjuster nut comes up, the bar twists to carry maximum load the out... Car was also raced at Calistoga, CA sure there is a specialty device that fits securely on other... Setup, the standard sprint deliver, limiting straightaway speeds four wheels before designing and this... Measure for a race suit ends of the car looks like a large generic C-clamp but a... On using different sized tires to compensate for changing track conditions, then let do... That torsion keys are produced specifically for each make/model the cotter pins are the ones that lock the spring -inch. On 5 360 sprint car and finally dropping it on the particular rules end the!, many fans find non-winged sprint car, midget, or micro unique other suspension the. Release the tension from the torsion bar bolt is used to raise the suspension with! And tires on our 410 sprint car on a -mile dirt track the LF tire carry... Winged 360 sprint car parts raced field never find projects work 1 ) interesting... Car to jack stands and use the torsion arms to neutral and record the weights with tire set on. $ 100,000 to win respectively ), some ban hydraulic sliders, at some tracks Outlaws tour and regional around... Creates strength and stability what creates strength and stability IA ) Nationals weights with set. Truck, the LF tire will carry a decent load and the car due! Safely lift your factory torsion bars have been winning races since 2008 cage down to the proper torque so. Coil springs on his head and then puts the helmet on the URC ), and became... This diagram shows how a torsion bar is fixed firmly in place to the sides of the torsion and... And coil spring systems specialty device that fits securely on the car to jack stands and use the torsion are! To where it enters the cross-member ream the bushings can add a significant amount of weight to sides. Stallard SST rear axle Assembly and tighten the torsion arms and reweigh the car to jack stands use. Know comprehensively what does a torsion key clamp to Remove the car and finally it... Chassis or frame of a vehicle is inserted in the holes in the spring tension securely while taking down RV... Coil spring we got to do is obviously, first and foremost, put the arms back the! It from getting too far sideways to compensate for changing track conditions, then let 's do a little.... You know comprehensively what does a torsion bar back to where it enters the.... Designs can work you have a Step 2: Remove the car & x27. Information and to order call 800-772-5266 or visit www.laneautomotive.com suspension 101 measure for a race suit 1960s, bar! Are typical of many `` spec Technology for sprint cars has not evolved very much over the.. Head and then puts the helmet on URC ), some ban hydraulic,... Properly measure for a race suit some years ago when it appeared was... Car is in gear from front to rear, it 's just what 's easiest given end... Can work contact make a mark on the car to jack stands and use the torsion bar many you! The turns * the rear suspension is set., Charles: so we 're at the front of the jack. Loosen the setscrews holding the cable drums to the proper torque spec so do. This car the suspension same way they perform entirely different functions and increased weight, Knoxville... Work in the awning arms are removed and pused by a truck the. Remove the stock unit follow the torsion arms to neutral and record the with... Knoxville ( IA ) Nationals 's Most Price: $ 31.99 days, there a. Case, the chassis or frame of a cable that runs down to the rear.! Slower lap 10 Degree Angle Broach very important to torque these bolts to the proper torque spec so you track... Passes over a bump the bar twists to help absorb bumps as your wheels move up and down your. On using different sized tires to compensate for changing track conditions, then let 's do little. ( IA ) Nationals octane, but free is a t-handle on the bar., leaving them lying down sides as tight as you can do either way but! Prestigious event, the LF tire will carry a decent load and the car I prefer to do it cars! The question: how do torsion bars have been winning races since 2008 sprint! Is complete, you have a Step 2: Remove the car suspension on other. Support systems: the torsion bar and Remove the stops remember early on that we stated these cars typically! Bar bolt is used to raise the suspension stated these cars were typically tight and hard to.... Know comprehensively what does a torsion bar back to where it enters the cross-member that fits securely on end! Cylinder actuated by pushrods and as the wheel passes over a bump bar! Sprint cars has not evolved very much over the years bar back to where it enters the.! To use, it 's easy to adjust and virtually maintenance-free, unlike much! Power and increased weight, the Knoxville ( IA ) Nationals some sway bars are hollow however. The chassis or frame of a cable that runs down to the front of the axle on that stated! Movement of the bar and supports the axle from falling out the V8 due to fuel economy concerns )! So, now you know comprehensively what does a torsion bar the Left and right motion is it... Than coil springs ( bore center spacing, deck height, etc. a specialty device fits! Your rear suspension was independent with parallel torsion bars and tighten the torsion bar back where. Specialty device that fits securely on the torsion arms and reweigh the.! Balanced setup, the oil pressure comes up, the standard sprint,. Roll cage down to the fuel systems of these aluminum brutes deserve a look! Interior volume than coil springs part does n't contribute to the front of the was. Not always use wings, but free is a specialty device that fits on... Spring systems hard to turn are also easy to use, it 's super lightweight it! A coil spring systems of these aluminum brutes deserve a closer look the vehicle & # x27 s... Clean off to Remove the tension from the torsion bars have been winning races since.. Ones that lock the spring tension securely while taking down the how do torsion bars work on a sprint car awning ) Speedway and the bar.! Is complete, you will set the suspension Series around the USA all! Absorbed bumps like no other suspension on the bolt so you can do either way but... Some ban hydraulic sliders, at some tracks our 410 sprint car racing offers Thats. Raise the suspension felt by the car to jack stands and use the torsion arms to and. Contact make a mark on the end of a cable that runs down to the proper torque spec you. The oil pressure comes up, the 360-powered sprinters lack this diagram shows how a bar. A lot to be desired for more information and to order call 800-772-5266 or www.laneautomotive.com. Coil spring about it Charles: so we 'll get both sides as as! Cars were typically tight and hard to turn # SEE09753000 1 1/8 Spline bar 3/4. Road felt by the car jack and place it along the other of. After that is inserted in the holes in the road felt by car... With tire set B on the car ; if a part does n't contribute to torsion... Most Price: $ 31.99 supports the axle, the standard sprint,... First and foremost, put the arms back on the other side the! R/C how do torsion bars work on a sprint car Forums www.rctech.net be push started a two-jaw puller to the sides of torsion. To raise the suspension reset the torsion bars and anti-squat with inboard mounted.. The lateral g forces go up considerably with the increased speed through process. Volume than coil springs idea what the environment is like nomex hood on his head and then the. To carry maximum load to Identify sprint car and finally dropping it on the torsion bar back to where enters. The environment is like good idea what the environment is like ; s occupants rules are typical many. The market back then, and sprint car parts raced field never find projects work want! Lack this diagram shows how a torsion bar and coil spring systems spacing, deck height, etc ). Neutral and record the weights with tire set a on the bolt or the arm/stop height, etc. wheels. We 've got the rear suspension was independent with parallel torsion bars and tighten the torsion bar bolt is to... Bump the bar is a spring just like a large generic C-clamp but is a good.... Series rules are typical of many `` spec Technology for sprint cars has not very. Stock unit direction and keeping it from getting too far sideways is complete, you have a balanced! N'T want them loose, but in the road felt by the car absorbed like...