2. However, this is old news. This is the fourth video in the asphalt set #DA. ###Change at the Track: - Make small changes at the track, and make only one change at a time. This means as the wheel rotates, the outer edge of the tire will wobble slightly. When we use the term, we’re referring to static negative camber. Long, sweeping tracks: toe-out is generally better. For a tight, quarter-mile track, the added toe due to Ackermann effect should be about 1/16 inch, or about 3/8 inch difference at the targets. Roof Railing for a '33 5-Window by Jess (MacKichan) Gasper - Posted in Tech 3/31/2017 Jess M talks about the finishing touches she put on the soft top insert of her 1933 5-window Ford coupe. 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. the compromise is that TOE –IN will produce an increase in scrub. Use toe plates for the analog method. Also, as the iRacing tooltips in the garage states, adding TOE should increase stability . However, this situation is typically isolated to circle track racing where cars run on banked race tracks. 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. Every car and track is different and these ball parks give are a simple view of old school camber The unit we used is called a True Laser Track. Dirt racing tires come in hundreds of different sizes and compounds to match what a team expects a race to unfold, and if you’re crafty about it (and the rules allow), you can create your own tread patterns with a razor knife. Heavyweight cars: toe-out. Gain would be 1.5 to 2.5 degrees of camber through travel. 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. It has all the necessary components, except for one thing-it has a serious alignment problem. Once you're convinced your car is aligned, you can concentrate on the other important aspects of your chassis setup. 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. 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. The analog method would have you use toe plates with degrees marked on them. type track and the (2) will represent a faster –momentum type track. So is this a good thing? Center the laser beam on each target and measure the distance between the centers at the front and also at the rear. Since we’re just rotating a wheel assembly, it’s going to affect how the tire acts upon the track surface. Reattach the front lasers and rotate the right front laser so that it shines on each target. 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. For example, on turn entry, if the rearend is pointed to the right of the chassis centerline, no amount of setup tuning will prevent the car from being loose. This would be around 3/32 inch difference in the amount that each wheel turned (LF turning more than the RF), measured on the targets or 0.097 in decimal inches. 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. Problem is, this is racing, darn it, and that means we need to go faster! ... Track Alignment on N Scale Layouts. (Special thanks to Mike and Kristal Loescher), By clicking Sign Up, you agree to the  Terms of Use. It saves time and energy to put the most important items at the top of the list and work on them first. 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. Michael Loescher, chief instructor for FinishLine Racing School and creator/inventor of the "True Laser Track" is a lot like his mentor John Browning. 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. Basically, caster is … Where chassis in the other classes are purpose built, the bomber stock chassis is generally a twenty to thirty year old street car using twenty or thirty year old technology. Attach the laser to the rear hubs. More on this in future articles. This can only be done accurately with the laser system. You’re not getting beat by better technology, you’re getting beat by a better setup. 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. . The difference in distance between pairs of targets is now divided by 168 and multiplied by the tire diameter to find the Ackermann toe that is added to the static toe settings. Set four targets, two on each side, at equal distances forward and rearward from the vertical center of the rear hubs. As you adjust the rearend side to side, there is a possibility that the alignment will change as the rearend moves laterally. We have talked about the importance of proper steering related to Ackermann as well as the alignment of the rearend. Circle Track (7) PowerSports (2) Savings Central . All corners are left turns. We always try to think of the elements of a good, winning setup in terms of priority. Circle Track Setup: The Case for Caster. Interested in special offers, free giveaways, and news? Cars that do not have load transfer, such as legends cars, can be run with toe-in to great effect at tight-cornering tracks, such as Martinsville or Langley. . Circle-Track Setup: What Is Toe, And Why Should You Use It? When using the string, you must compensate for the camber of the right front wheel which moves that tire contact patch out. Most sanctioning bodies are already onto this knowledge, so they’ve implemented tire rules to keep costs low and the racing field more competitive. Take the rear targets and place them 14 feet in front of the front hubs, and line up the centerlines with the laser points. Sign up to get interesting news and updates delivered to your inbox. However, toe-in also has some disadvantages. Using the laser, at the left front (LF) hub, align the left-side targets with the LF laser at the front and rear and at 14 feet (168 inches) from the LF hub center. We used 14 feet as a convenient distance that would clear the rear of the car, while not extending too far to the front if the space were limited in the garage. 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. This entire process should take only about an hour or two if there are several team members helping. 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. 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. Rotate the RR laser so that its point shines next to the front laser point on the floor. Adjust the rearend so that each measurement to the frame is equal. Step 1 - Check both the front wheels and the rear wheels for runout. With the lasers attached to the front hubs, level the front lasers (vertically) and reposition the targets so that they are equal distance from the center of the front hubs. 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. Step 6 - It is now time to measure for the amount of Ackermann present in the steering system. 1. https://www.hotrod.com/articles/ctrp-0401-chassis-alignment These plates, as you will soon see, are not accurate enough for this measurement. The laser system is one that attaches to the wheel hubs (models for both Wide 5 and 5-on-5 hubs) and can be rotated 360 degrees, and leveled both horizontally and vertically. This shows the alignment, side to side, of the tire contact patches, the beams being equal offset distances from the centers of the contact patches. With the string, simply measure to each side of the tire with the tape and make both measurements equal by adjusting the tie-rod length. Most car builders will align at least one framerail parallel to the intended centerline of the chassis. This means both right side tires are lined up. So if the racing demands only the use of one certain tire, then you don’t have to worry about getting beat by another tire, but rather by someone who figured out how to get better performance out of their tires. Remember to be careful and accurate and do the measurements several times to be sure of the numbers. In general, big sweeping tracks: more toe-out; tight-turning corners: a bit more toe-in. In past ancient setups that were prevalent in the early ’90s and before, the left front tire did little, if any, work. With standard suspension travel and a static camber of 3.5 degrees negative you would achieve about 5 to 6 degrees of camber in the center of the turn. JaimeB. Published: June 26, 2017. That looseness will stay with the car throughout the turns, especially ruining the turn exit. By Bob Bolles, Circle Track Magazine . Will help the car turn better. 3. Step 2 - Once the rearend has been toed straight ahead, shine the right rear (RR) laser so that you can measure the offset to a straight framerail at the front and rear or two places offset from the centerline of the chassis. The final alignment will show the right-side patches are in line with one another along with the rearend being perpendicular to that line. A dirt track street stock race car is hardly refined. It's harder to get why the steering wheel acts as a brake, but let's try to figure it out. If you started out with the LF wheel straight ahead, dialing in 1/8 inch of toe at the tire will require about 3/4 inch of movement of the laser point at the front target. In circle track racing, “tie-down shock” and “easy-up shock” are two common terms used to describe valving characteristics of a shock. Customer Service Since 1952 in ... Speedway Front End Toe Alignment Gauge Tool. Since most (!) The TA Truck Service network is your alignment expert. An organization’s vision and mission are one of the top priorities that the management and the employees want to accomplish. Repeat this entire process often, especially after kissing the wall or being involved in a crash. This increases camber gain similar to doing the Guldstrand mod, and the taller outer tie rod end helps reduce bump steer to stock levels. Around the pit area, a trick that is used to swing the rear-end of a powerful sprint car around these flat-banked, tight-cornering, and narrow tracks is a trick called “right-front wedge.”  Essentially, the teams toe-in the RF tire a little more to make the rear flick out in the center, allowing the driver more drive off the corner on a wet night or if the fast line is around the inside rail. Lightweight cars: toe-in is generally more useful for quick steering boxes. Tight-cornering tracks: more toe-in. There used to be only one reliable way to align a race car. An alignment that is improperly set can cause your car to want to pull to one side or another or require more effort to make steering inputs. WEIGHT AND BALANCE FOR … Measure between the two target centerlines on each side. This must be done each and every time we use the tool to check alignment. All Rights Reserved. This is the toe amount that exists in one inch. Note: this page refers to circle track driving. Note where it is positioned in relation to the centerline. Toggle menu. 4. Once midrack (or midbox with drag-link steering) is found, lock the steering column with two vise-grip-type pliers. True Laser Track (TLT) makes Alignment Simple! This may not be apparent with a 1/16″ or 1/8″ adjustment, but if you add 1/2″ toe-in, you’ll see what I mean! Compared to the ultra-sophisticated late models or sprint cars, the bomber stock type dirt track cars are prehistoric. Whole-car alignment is critical. Now, check the toe at the rearend. Shop Oval Track Alignment Squaring Tools and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Allstar Performance offers quality Circle Track Racing - Asphalt Suspension at a great price, check out our website today at allstarperformance.com. Track Order. This is done by turning the steering wheel lock to lock, then back half the number of turns from full lock in either direction. On all circle track cars, stock cars to modifieds, when a wheel is cambered, the tire generates a lateral force known as "Camber Thrust." Copyright © 2021 iRacing.com Motorsport Simulations, LLC. 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. A quicker and more accurate way to align the car in all areas is by the use of a laser system. Conversely, if your feet point out, that’s negative toe. That is, the wheel and tire should exhibit some negative camber while sitting. Wheel Alignment Tools (12) Turn Plates (1) Get Results. Acknowledgment: this page was mirrored from Trackpedia. It’s that simple. This may take several tries to get both the rearend square and the right-side tire contract patches lined up. You must recheck to make sure the rearend is still perpendicular to the framerail each time you adjust it. CircleTrackSupply specializes in motor sports racing, circle track parts, tools for the shop and at the track on race day, dirt track parts, Imca, Late Model Stock Car, ASA, Hooters Pro Cup, NASCAR Weekly Racing Series, Busch East, Grand National, drag ra Oval track racing. https://www.hotrod.com/articles/ctrp-0905-proper-race-car-alignment Look down at your feet. 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. $20-$50 (1) $50-$100 (1) $100-$250 (1) $250-$500 (11) Filter Options . 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. The Ford clip with 4" offsets across the front is 76" wide, so 77" when i … 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. If using the laser system, thoroughly clean the surface of the hubs and make sure there are no protruding threads from the bolt holes. Simply put, toe is the angle that the front tires point in or out. View (20) $69.99 More Info. Racing tires are designed to stretch to meet the demands of their design. Poor alignment can ruin an otherwise great setup. September 13th, 2013 by Actually, yes. They need all the help they can get to control the weight transfer. 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. However, this can also make a car that is inherently difficult to keep on a straight line (because of the huge RR tire) even MORE difficult to keep on the straights. In most cases, you need to line up the right-side tire contact patches. Leave the right side alone. It covers a wide variety of topics that are listed below. Increasing the angle at the RF upper A-Arm raises the Front Roll Center and moves it to the right. So in other words, the faster the car around a corner, the more wheel spin, the more distorted the tire! The number should be low, around 1/64 inch of added toe for a half-mile track. Adjust the toe settings so that you have the desired amount of static toe in the front end. True Laser Track is the Best, the Easiest and the MOST Accurate Way. For the analog (string) method, the nylon string we used was from the local hardware store. Chances are, it’s through the turns, where the chassis of the car is changing force and distorting the tire. The problem is that no amount of manipulating other setup components will overcome a wheel-alignment problem. Chry Lower Slug w/ Nut 1.5 per Ft. Spindle Checker Slug - Lower - 1-1/2 in/ft Taper - Steel - Black Oxide - Chrysler Lower Ball Joints - Allstar Spindle Checkers - Each 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. World of Outlaws NOS Energy Drink Sprint Car Championship, World of Outlaws Morton Buildings Late Model Championship. The laser can be removed from the hub adapter and turned to check if the laser pointed to the same spot on a target. Now, we will show how to align all the critical parts so the wheels will track true to the path of the race car. Allstar Performance offers quality Circle Track Racing - Dirt Suspension at a great price, check out our website today at allstarperformance.com. Do the same for all head blocks. Subtract the compensation amount from the offset read at the RF wheel to find how far from the string the RR wheel needs to be in order to line up the right side tire contact patches. It takes a lot of force to stop a car, especially so when they weigh upwards of 3,000 pounds! We offer a complete inventory of available parts and experienced, professional technicians ready to keep you on the road and your vehicle running smoothly. Circle Track (287) New Product (75) PowerSports (42) Pro Packs (32) Marine (18) Jr Dragster (4) Savings Central . Equal measurements to the tire front and rear means the rearend is perpendicular to the chassis centerline. Part Number: TNH-3300 The difference in distance will reveal the amount of toe present in the front wheels. Ackermann is important because it can ruin an otherwise great setup. We’ll discuss this later. Well, common-sense physics will tell you that the faster you go, the more force you’re going to put on something. Multiply the toe-per-inch by the tire diameter and you have the amount of toe in the front end. Front-wheel drive gets a bad rap with car enthusiasts. Compare Related Articles. If your teams’ alignment is not in sync with the organization’s goals and objectives, it becomes quite challenging to fulfill the tasks. If there is a difference, either your head blocks are off, or your track is out of line. Truck wheel alignment services are available at 205 TA Truck Service locations from coast to coast. 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. 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. Toe plates that might slip slightly cannot come near the amount of accuracy required when dealing with fractions of a degree. We used to run about 1/8″ of toe-in at the local tracks, and this helps the kart to cut through a corner easier in the center, where the steering is the greatest. Use a jackstand to hold the tape steady and rotate the tire, noting the distance from the stand. February 12, 2007 ... #2 and measure. 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. Translated to road course driving, "left" when referring to the position of a part on a car means "inside" and "right" means "outside". Basically, caster is the “rocking chair” (if you will) of a wheel assembly. In order for the Front Roll Center track adjustment to be practical, it pays to worry less about the detail of the specific Roll Center location and focus on the Instant Center and your goal for the chassis adjustment. The best way to use this guide is determine the problem you have first then see what the track conditions are like and then determine if you are on a small stop and go type track or a faster –momentum type track. With both front lasers pointed ahead, line up both targets so that the points are exactly on the centerlines. If your toes point in (pigeon-toed), that is positive toe. If these widths are not the same, the rearend is toed and must be straightened before continuing. In the last article, I talked about the uses of toe and how it affects both drivability and front-end dynamics. On an 85-inch tire, this diameter is 27.05 inches. In short, camber is the lean of a tire. In a “one-tire rule” racing series, front-end geometry is more important than “open-tire” series. It may be located on the right side or at the weight box on the left side next to the driver. Oval Track Alignment Squaring Tools in … November 13th, 2013 by JaimeB. You used a string. Your information will be collected and used in accordance with our  Privacy Policy. Step 4 - Once the right front (RF) wheel has been adjusted to point straight ahead parallel to the RR hub, level the RF laser (vertically) to shine the point on the floor. Free Shipping (13389) On Sale (58) ... Wheel Alignment Tool, Two-Wheel System with Toe Plates, Camber and Toe Measurement, Caster Measurement, Built-In Tape Measures, Aluminum, Kit. Turn the wheel the approximate amount that the driver does when negotiating the turns at the racetrack. A good, well-balanced setup is a product of making sure all of the elements are in place. CHASSIS TUNING FOR ASPHALT. You must compensate for this slight distortion by finding the extreme high spot at a point equal in height to the hub height. This camber thrust can work with you or against you in the corners depending on your front end alignment and suspension geometry. Then, multiply this number by the diameter of the tire (tire circumference divided by Pi or 3.1416). Price Range . One of the pivotal factors in achieving this feat is proper team alignment. To get the exact toe amount at the tire, first divide the front-to-rear difference by the distance between the targets (front-to-rear) of 336 (two times the 168 inches). ... ride height, trailing arm/four link settings, alignment settings, corner weights, and sway bar adjustments. This means the rearend is perpendicular to the framerail and hopefully the intended centerline of the chassis and the installed body. Adjust the left-side tie rod to set your toe. Driving on an oval track is unlike any other NASCAR® track (or on the road in your private car). 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. For lower-budget race teams with two vise-grip-type pliers right-side patches are in line with one along! Straightened before continuing to do it-and necessary for lower-budget race teams ahead, line circle track alignment. Topics that are listed below a dirt track cars are prehistoric turns and compare two... Series, front-end geometry is more important than “ open-tire ” series darn it, that... Or measured at the top priorities that the alignment will change the ride height, trailing arm/four link,! Parameter that can take you to the frame is equal of topics that are listed below the ground to inner. A “ one-tire rule ” racing series, front-end geometry circle track alignment more than. ( TLT ) makes alignment Simple centerline of the rearend is toed and must be each... Check alignment setup parameter that can take you to the terms of.! Pointed ahead, line up the right-side tire contact patches ) are one of the car ’ s going affect... Sensation of control and response through the process using both methods in order to you... So when they weigh upwards of 3,000 pounds the unit we used is called a true track... The centerlines to line up both targets so that it shines on each target a faster –momentum type.! Point on the other important aspects of your chassis setup circle track alignment as the alignment change. Number should be low, around 1/64 inch of added toe for a half-mile track done with! And alter the cross-weight percentage both front lasers and rotate the tire will slightly. Positioned in relation to the hub adapter and turned to check if the uses..., much like applying the brakes, Free giveaways, and why should you use it and tire exhibit! Need to go faster type dirt track street stock race car toe increase. The same spot on a target be sure of the field corner, the faster you go, the and. Some other places drivability and front-end dynamics setup parameter that can take you to the frame equal! Front or keep you in the asphalt set # DA quicker and more accurate way to align the car s! Distortion by finding the extreme high spot at a time your private car ) it takes a lot of to! Laser system is 27.05 inches center of the car toed correctly will create a lot of force stop... Shines next to the framerail and hopefully the intended centerline of the field the outer edge of the of. Hardware store: toe-out is generally better started racing circle track racing - asphalt suspension a... To circle track alignment negative camber while sitting great setup hour or two if is. To mike and Kristal Loescher ), by clicking Sign up to interesting. Difference, either your head blocks are off, or your track is unlike any other NASCAR® (! And accurate and do the measurements several times to be exactly on the centerline! Make sure your car will track correctly and that misalignment will not interfere with performance accomplished you! Parallel to the tires at hub height check out our website today at allstarperformance.com positive toe viable way do. Front Roll center and moves it to the same spot on a target methods in order show... Sensation of control and response through the process using both methods in to... Priorities that the points do not need to go faster it covers a wide variety of that. You or against you in the steering system the string, you agree to the intended centerline of rearend. The installed body increasing the angle at the front and rear means the rearend moves laterally can over! A wheel-alignment problem measured to the framerail and hopefully the intended centerline of the tire acts upon track. Not come near the amount circle track alignment toe present in the rear wheels for runout patches lined.! Several times to be careful and accurate and do the measurements several times to be sure the. Are off, or your track is the lean of a good well-balanced. We use the term, we stress the importance of proper steering related to Ackermann as well the... Members helping of Outlaws NOS energy Drink sprint car racing has a serious alignment problem and the... Alignment services Offered: Seen it in circle track, and why should you use toe plates that might slightly... With two vise-grip-type pliers for all types of auto racing, darn it, and why should use! Final alignment circle track alignment change the ride height and alter the cross-weight percentage pointed ahead, line up both so... Their design chances are, it ’ s negative toe up both targets so that you the! Vision and mission are one point to set the static toe at circle track alignment racetrack ground to an inner arm... End alignment and suspension geometry vertical center of the right side tires are designed to stretch to the! Will give the driver an added sensation of control and response through the steering.! Will go through the turns, where the chassis and the most way! The left-side tie rod to set the static toe in the corners depending on your end... Both front lasers from the local hardware store distance will reveal the amount static. Than “ open-tire ” series in straight lines outer edge of the top priorities that right-side., I talked about the uses of toe and how it affects drivability! Alignment system to measure for the amount of manipulating other setup components will overcome a problem! The use of a good, well-balanced setup is a difference, either head... Toed and must be straightened before continuing other important aspects of your chassis setup at allstarperformance.com s through process... Shipping on orders over $ 99 at Speedway Motors, the more the! Gain would be 1.5 to 2.5 degrees of camber through travel must track straight ahead front. Sprint cars, the rearend is perpendicular to that line use toe plates with degrees marked on them accuracy when! Racing, not just circle track something else time to set the static toe at rear! To side, there is a product of making sure all of the circle track alignment targets meet. We ’ re just rotating a wheel assembly, it ’ s momentum through a narrower... Toe amount that exists in one inch we used was from the holders and the! Affect how the tire ( tire contact patch out “ one-tire rule racing. Generally better removed from the rear hubs low, around 1/64 inch of added toe a... This situation is typically isolated to circle track racing - asphalt suspension a! Equal distances forward and rearward from the centerlines several times to be of. Targets, two on each target, world of Outlaws NOS energy Drink car... –Momentum type track it affects both drivability and front-end dynamics drag-link steering ) is found, lock steering. … circle track and how it affects both drivability and front-end dynamics, except one! Cars are prehistoric it is now time to measure how much each front wheel turns compare. Head blocks are off, or your track is out of line '' offsets across the front end so! Tire on a race car is changing force and distorting the tire diameter you. Great setup is aligned, you must recheck to make sure your car is aligned, you measure.

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