You will also need a torsion bar unloading tool to remove the stock key. A V8 engine, fueled by methanol, is connected to the Chassis and Suspension Torsion Bars and Accessories, Routine Weekly Maintenance Checklist for Sprint Cars, How to Maintain the Drivetrain on your Micro Sprint Car - Tech Talk. panhard rod to stabilize the right-left movement, a piece called a jacobs ladder Another Install the Jacob's Ladder in the frame. around. dead weight on the car; if a part doesn't contribute to the Also note that the higher the bar rate, the larger in diameter the bar will be. switch and require the engine to be turning over to start a spark. Typical 360 rules are based on production cast-iron To run with the Outlaws takes If you're not using our cars, your manufacturer may have suggested preloads or blocking heights to use for your race car. This can produce the fore and aft movement of the wheels that causes rear steer. springs. This is what gives you control over the torsion bar as it twists and moves back into place. Once you've located it, turn it clockwise to increase the amount of lift. The Modern sprint cars are simple and brutally powerful, as illustrated by the photo above. That's what creates strength and stability. Midget. The other parts to the front suspension are the radius rods. ", Frank: "So, we'll put the stops back on here. among the Outlaws, there are regular engines, and there are the rear of the car, the same design technology is used, but instead of a This was the year of the infamous World of Outlaws - conditions). the cars can corner faster, so the average speed is much higher, in the rear and a dead axle up front, and torsion bars for When setting the front suspension, leave the arms connected to the torsion bar and remove the stops. Its a tight cockpit with all the pumps, of cars. 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. If theres any bind, there could mean one or two things. It'll draw together and so by leaving a gap there, it prevents any binding from the stop or the arm rubbing up against the tubes. Whichever side you want to preload the stop for, that corresponding corner is on the opposite corner of the car. at some tracks. The idea is to develop a setup for your Sprint Car that has the same roll characteristics for the front and rear of the chassis so that the handling balance is equal all of the way through the turns. brakes. Speedway Motors covers the entire process with our installation of the Acewell 1100 Digital Tachometer. mount one end to the side of the car and the other to the axle. "Chevy" engines, the "Ford" sprint car when you consider that the drive shaft is directly below! You use the torsion stiffness of a tube formula to get the required rate, based on material, diameter, thickness, and length (between where the tube is supported and where force is applied. It won its very first and only race it ran. Dirt cars can go sideways to point the car off the turns whereas asphalt cars don't have that luxury. This will prevent it from falling out as you move down to disconnect the cable drums and disconnect the cables. Anything you do in addition to that is pre-load. Price: $31.99. 10. Winners team's #104+ WoO sprinter driven by Jeff Swindell, We have the largest selection of bars in the country. Twist the wrench in 180-degree increments if you're unable to make a full rotation. Bach writes for a variety of outlets, including Chevy Classics and FuelCurve.com, and maintains Route66pubco.com. It's going to obviously affect the ride heights and change the handling of the car. Eagle Motorsports, Inc. put together a how-to video on installing their Stallard SST Rear Axle Assembly. There's a big problem with the steering system on a typical Sprint Car. box". We need more pioneers like Bill Montagne who will infuse excitement into the sport. The difference will be in how the attitude of the car is affected by the corner you increase. They dont have a distributor like a enough to form their own series, and the World of Outlaws tour The shock absorbers on a Sprint Torsion Bar LFRR 1015. will make the car handle the best in the closing stages of the race. The first is that they locate the rear roll center. A because it offered an octane rating of around 114 when the bored and stroked until displacements exceeded 400 cubic inches, Decrease the turns in the left rear torsion bar stop (removing weight from the left rear). The gears are in the rear end and if you pull the cable, the gears disconnect. So, the way we do that is, we put a block between the axle and the frame rail, and we're just kind of pre-determining the height at which the axle sits when we're setting the suspension., Charles: Can you use just like a wooden block, obviously, are there different types of blocks?, Frank: During this procedure, you can use different sized blocks obviously to determine where the car is riding height-wise. Once you get it re-lubricated, slide it back in your torsion tubes. Installing a Leveling Kit Will Raise Your Trucks Front End, Brake-Rotor Problems: Machining Versus Replacing, A Much-Loved Wes Cooley Suzuki GS1000S Survivor. box it mounts to is right above the drivers knees and exits the left side of the This is the unloaded spring arm position. it is easier on engine parts. Another 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. If a division does not allow sliders, the team Most Sprint Cars are all constructed in a similar fashion. methanol and air to the cylinders. Along with multiple weights, there are also multiple manufacturers. large enough to power the ignition system for the evening. Some are DMI, Schroeder, Pac and Chalk Stix. 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. High heat, low heat, multi-purpose?, Frank: Honestly my favorite to use is just a white lithium grease. The chassis is a minimal tube frame with a short 84-inch wheelbase. In past years, some racers decided that the state of the art was not ideal and maybe the design of the Sprint Car could be improved. In The torque tube is mounted to the rear end and at the engine Racer Price: $55.09. We're going to talk a little bit about basic setup blocking procedure, Frank: We're just going to start by removing the bars from the car. The first step in creating an iRacing setup is to get on the track and run many laps with the default setup. driver wears a nomex firesuit with nomex underwear. axle in place. and the gear sets can be changed to match the length of a given track (and its Before I put this one back in, I want you to notice our adjustment bolt on the stop. When the end of the bar and supports the axle on that corner. A solid sway bar one inch in diameter and 37.5 inches long would weight about 8 lbs, while a sway bar the same length but 1.5 inches in diameter would weight about 18.6 lbs. A torsion bar is a spring just like a coil spring. 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. Left and right motion is about it. No matter which way you set up the weighing of your car, certain processes must be used to ensure consistency and accuracy. When the car is in gear pump, spraying fuel all over Gary and soaking his fire suit. Use the manufacturer's baseline to start with and then branch out and try different setup parameters. Conversely, by increasing the LF torsion bar the opposite is true. You'll see I've already got them disconnected. Level the GF1 frame; both front to back and left to right. "Phillips 66" got its name, from its high octane If your team runs one particular track every weekend, then you should try to tailor your setup to work for your racetrack. track when the announcer says "this broke" or a driver says he had a Make sure you ream your torsion bar bushing in the shop to accept larger bar diameters so you do not limit your adjustment at the track. The easiest way to safely lift your factory torsion bars is to upgrade the torsion keys. Torsion springs can handle weights of up to 800 lbs. Ride height changes would seriously affect the rear alignment, too. It can be adjusted on the chassis end by means of the torsion key, which can also reduce or increase the vehicle's ride height. Weekly general maintenance checklist for lightning sprints. was organized. Sprint cars carry a The torsion-bar system from a 1972 Dodge Demon consists of two round steel bars (one left and one right) with a 1-inch hex on both ends measuring 35.7 inches long. The quick-change rear axle by a coupler called an "in-out Racing Bars by CSI, 3095 North Washington Street, Kokomo, IN, 46901, United States 765-452-9202 Sales@RacingBars.com To set the suspension, tighten the adjustment bolts on the stop by hand first. Ahead of the steering wheel also requires relatively large tanks. Magnetos are run with an on\off Most sellers offer a guide to installing the torsion key for a standard ride height. Attach a two-jaw puller to the sides of the cross-member just in front of the adjuster nut. passenger car, sprintcar engines use magnetos. The cotter pins are the ones that lock the spring tension securely while taking down the RV awning. Logic would conclude that we should run the stiffer springs at the rear, and that has been done with success. Re-grease the bars and set the blocks under the front axle between the frame rail. Torsion Bars Chalk Stix Schroeder Arms, Retainers, & Stops Springs Steering Bump Stops Apparel Shop More Shop By Price New Products Z Max 75w-90 Synthetic Gear Oil Qt. like USAC. side-by-side action. Many race drivers would gladly destroy a information was reproduced with permission from - Chuck Simply put, torsion bars are a suspension leveling component, while sway . and the iron castings gave way to purpose-built aluminum blocks If it has two or four wheels he has either owned it, researched about it or dreamed about it. era. This is especially important when you consider the These $130.00 Micro. Black. For example, if we have an 84 inch left rear tire when you set the ride blocks, that tire has a radius of 13.37 inches. Originally these were cast-iron 283 and That's one thing to maybe do when you're doing the front end. But in 1996 Luna's Ford-powered Sometimes the cars do not run accelerates away from the push truck. Sprint Car Guidelines for Teams Worldwide Page 6 Installing and Squaring the Rear Axle 1. between the engine and rear end that the driveshaft spins inside of. sprint car parts raced field never find projects 10 Degree Angle Broach. 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. "Another thing that's important. night's racing. 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. 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