If the point where the beam strikes each right side target is not an equal distance from the target center as well as on the same side, adjust the length of the right side tie rod to align the right front wheel parallel to the rear wheel. Poor alignment can ruin an otherwise great setup. Circle Track (7) PowerSports (2) Savings Central . Toe Settings - Proper toe settings at the front and the rear are important. In short, camber is the lean of a tire. By Bob Bolles, Circle Track Magazine . Wheel Alignment Tools (12) Turn Plates (1) Get Results. They need all the help they can get to control the weight transfer. With most production cars set up to strongly understeer from the factory, many track alignment settings are designed to move the cars closer to neutral handling, by making it oversteer more than street settings would. Part Number: TNH-3300 In a “one-tire rule” racing series, front-end geometry is more important than “open-tire” series. https://www.hotrod.com/articles/ctrp-0905-proper-race-car-alignment Then, multiply this number by the diameter of the tire (tire circumference divided by Pi or 3.1416). Simply put, there are three different ways, or dimensions, to rotate in the world: (1) front to back, (2) side to side and (3) up and down. JaimeB. Multiply the toe-per-inch by the tire diameter and you have the amount of toe in the front end. Ackermann Adjusted - The last alignment priority is making sure you have very little Ackermann, which is the creation of additional front toe as the wheels are turned. . The key to maintaining accuracy in a laser system is to be able to check the tool to make sure the beam is truly tracking at right angles to the mounting device. Most sanctioning bodies are already onto this knowledge, so they’ve implemented tire rules to keep costs low and the racing field more competitive. World of Outlaws NOS Energy Drink Sprint Car Championship, World of Outlaws Morton Buildings Late Model Championship. This is the fourth video in the asphalt set #DA. All Rights Reserved. Circle Track Car Setup Guide. Calculations show that for those tracks with fairly large radii (much more than was used to design for passenger cars for turning the corner at the stop sign), a small amount of added toe is needed to properly align the front wheels to their individual radii. It takes a lot of force to stop a car, especially so when they weigh upwards of 3,000 pounds! Just the expense of building & setting up the car, and just getting what you need to set every aspect of the race car was costing a fortune. Truck wheel alignment services are available at 205 TA Truck Service locations from coast to coast. It's harder to get why the steering wheel acts as a brake, but let's try to figure it out. September 13th, 2013 by Driving on an oval track is unlike any other NASCAR® track (or on the road in your private car). Equal measurements to the tire front and rear means the rearend is perpendicular to the chassis centerline. https://www.hotrod.com/articles/ctrp-0401-chassis-alignment Adjust the rearend so that each measurement to the frame is equal. How Does It Work? Mike designed a SIMPLE and HIGHLY ACCURATE alignment system. Back to the garage! Tight-cornering tracks: more toe-in. True Laser Track (TLT) makes Alignment Simple! ... Track Alignment on N Scale Layouts. Actually, yes. Whole-car alignment is critical. However, that is only one of the three basic geometric ways to move a tire on a race vehicle. Anyway, this year i got a new rear end housing 61" centered, with a 3" offset wheel on the LR and a 4" on the RR both of my rear tires are narrower than the front. That much is easy to understand. Adjust the toe settings so that you have the desired amount of static toe in the front end. Step 3 - Center the front steering rack. Do the same for all head blocks. Gain would be 1.5 to 2.5 degrees of camber through travel. These plates, as you will soon see, are not accurate enough for this measurement. Be careful how each person holds the plates. If you adjust your left side tie rod so that the difference in distance between the front and rear targets is 1 1/2 inches, you will have 1/8 inch of toe. Since we’re just rotating a wheel assembly, it’s going to affect how the tire acts upon the track surface. Measure between the two target centerlines on each side. You’ve heard about torque steer and “wrong-wheel drive” and might write it off as being for grocery-getters, not real performance cars. The weight shift causes the front suspension to travel, and therefore impart a greater force onto the steering linkage, causing an added bit of toe-out. Most car builders will align at least one framerail parallel to the intended centerline of the chassis. Toggle menu. Toe-in is also used on dirt to great effect here in Pennsylvania with sprint car racing. You must recheck to make sure the rearend is still perpendicular to the framerail each time you adjust it. Long, sweeping tracks: toe-out is generally better. As you adjust the rearend side to side, there is a possibility that the alignment will change as the rearend moves laterally. Upon locating the high point, mark it with an arrow and then rotate the tire (front or rear) so the arrow is at the top pointing straight up. Oval Track Alignment Squaring Tools in … It is recommended you go over the hub surface with a flat file to eliminate any bulges or edges of metal that would cause the laser to be improperly aligned. Every car and track is different and these ball parks give are a simple view of old school camber However, toe-in also has some disadvantages. The TA Truck Service network is your alignment expert. Simply put, toe is the angle that the front tires point in or out. To counter this nose-dive, a bit more toe-in will give the driver an added sensation of control and response through the steering column. Since the chassis is going to change, it will put force on the wheel assembly, and therefore the rubber of the tire, distorting it from its original circular shape. Circle Track (287) New Product (75) PowerSports (42) Pro Packs (32) Marine (18) Jr Dragster (4) Savings Central . Now, we will show how to align all the critical parts so the wheels will track true to the path of the race car. I have done testing, the results are HERE The best compromise for most First Gen Camaros is to just add a .5" taller upper ball joint along with a .5" taller outer tie rod end. In Circle Track, we stress the importance of moment center design and having a balanced setup to give the car what it wants. While it is probably true that a car out of alignment is more forgiving on dirt, it is important on both dirt and asphalt to have your wheels properly aligned. Increasing the angle at the RF upper A-Arm raises the Front Roll Center and moves it to the right. Since most (!) Since toe-in forces the car’s momentum through a slightly narrower front wheelbase, the car can feel more unstable in straight lines. Circular Mill Alignment Advice on fine adjustments to a circular sawmill for accurate cutting performance. Use toe plates for the analog method. Customer Service Since 1952 in ... Speedway Front End Toe Alignment Gauge Tool. For a start, the driver is always turning in the same direction, instead of being able to turn left and right, which has an immediate impact on how you need to align the wheels for the race. Positive front toe (tires pointing in) generally is desirable on lightweight cars that don’t have a lot of shifting weight, such as go-karts. So in other words, the faster the car around a corner, the more wheel spin, the more distorted the tire! Reattach the front lasers and rotate the right front laser so that it shines on each target. We always try to think of the elements of a good, winning setup in terms of priority. All corners are left turns. On most quarter- to half-mile racetracks, little Ackermann is needed to make sure the wheels are tracking inline with the radius of the turn for each wheel. The Ford clip with 4" offsets across the front is 76" wide, so 77" when i … Allstar Performance offers quality Circle Track Racing - Asphalt Suspension at a great price, check out our website today at allstarperformance.com. There used to be only one reliable way to align a race car. No matter what kind of motorsport racing there is, there will always be a reason to optimize the contact patch of the tire to gain maximum grip. We will go through the process using both methods in order to show you how to perform each step. If the rearend is pointed to the left of the centerline of the chassis, the car will be tight through the middle and off the corner. Your information will be collected and used in accordance with our  Privacy Policy. Simply put, there are three different ways, or dimensions, to rotate in the world: (1) front to back, (2) side to side and (3) up and down. The general trend in all of circle track racing has been to make changes to our setups and car construction to make better use of the four tires, especially the left front tire. If your toes point in (pigeon-toed), that is positive toe. This entire process should take only about an hour or two if there are several team members helping. Heavyweight cars: toe-out. Repeat this entire process often, especially after kissing the wall or being involved in a crash. Conversely, if your feet point out, that’s negative toe. Acknowledgment: this page was mirrored from Trackpedia. We’ll discuss this later. Adjust the left-side tie rod to set your toe. You’re not getting beat by better technology, you’re getting beat by a better setup. 3. autosport involves going as fast as possible, in order to do this, the car’s chassis and suspension is going to change attitude, whether it’s a hotlap at Atlanta, F1 at Silverstone, or even a top fuel dragster twisting and bending its rails off the line. This means both right side tires are lined up. Copyright © 2021 iRacing.com Motorsport Simulations, LLC. In general, big sweeping tracks: more toe-out; tight-turning corners: a bit more toe-in. Many times I have run across a car that has all the right ingredients of roll center design-a good balance of front and rear suspension design, and proper weight distribution. This means as the wheel rotates, the outer edge of the tire will wobble slightly. Generally, toe-out is useful on heavier cars that have a lot of load transfer under braking and heavy cornering. Seen it in Circle Track and some other places. The laser can be removed from the hub adapter and turned to check if the laser pointed to the same spot on a target. If these widths are not the same, the rearend is toed and must be straightened before continuing. Problem is, this is racing, darn it, and that means we need to go faster! Knowledge of it is important for all types of auto racing, not just circle track. A properly set alignment will compensate for what is known as road crown – roads are sloped slightly to cause water to run off more quickly – while still being able to maintain a straight track. It has all the necessary components, except for one thing-it has a serious alignment problem. Will help the car turn better. So is this a good thing? CHASSIS TUNING FOR ASPHALT. Lightweight cars: toe-in is generally more useful for quick steering boxes. Track geometry is three-dimensional geometry of track layouts and associated measurements used in design, construction and maintenance of railroad tracks.The subject is used in the context of standards, speed limits and other regulations in the areas of track gauge, alignment, elevation, curvature and track surface. Adjust the Panhard or J-bar length so that the right-side laser beams (tire contact patches) are one point. Step 6 - It is now time to measure for the amount of Ackermann present in the steering system. You either measured to the tires at hub height or measured at the floor by creating right triangles on the floor. This is the toe amount that exists in one inch. Look down at your feet. Michael Loescher, chief instructor for FinishLine Racing School and creator/inventor of the "True Laser Track" is a lot like his mentor John Browning. 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