Page 1 of 1. I would run either the pure stock or street stock class. We have done a lot with the front roll center and cant wait to see how it does, after that, i found some legal stuff for the rear that we will try. I would say 99's priorities worked just fine. The metric cars can use different size spring spacers as well, so the playing field is already level in that respect. Chassis Setup Docs Hyper Racing. I would trail brake or lift earlier. A complete body comes with the fiberglass hood and roof, plastic MD3 nose and tail, a set of skirts, trunk, a box of rivets. Order Wilwood part number 150-9442K. Post Remember, we're still using stock components, we're just making small relocations of those points. I talk to lots of racers representing every form of circle track racing in every region of the country and beyond. 358101 FAB . If you have any problem with the download, just email me, and I will email or Facebook you your file. Dial In Your Metric. First, we don't want to restrict the movement of the arms too much. I never felt good about cheating but when everyone does you need an even playing field. When the LF is too cold, the RR spring is too soft. I'm curious what everyone's thoughts are on what it would take to allow the metric cars to be competitive without giving them too much. Always try to start with the track bars first. Can a 3-link be used effectively without weight jacks? Turn the wheels to the left all the way, make a mark with the steering wheel, now count the turns it takes to go to full lock the opposite direction. We had no idea how popular and successful this line of chassis would be. On both dirt and asphalt cars, it's a good idea to fine tune your shocks based on the type of track you're running. RacelineCentral.com All Rights Reserved, NASCAR 2K3 Racing Season Garage 101 Guide Download, Creative Commons Attribution-Noncommercial-No Derivative Works 2.5. I set the car up a particular way last year and won a heat race with my street stock in the late model class at HRP. ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. The cross weight adjustments should work on all dirt cars except the Sprint Cars. And your choice of aluminum or steel fenders doors and quarters. Swap Option: Medieval will build the chassis using one of our sandblasted frames. Poorboy, I think you're exactly right. The upper IC is to the rear of the rearend and the IC for the lower links is well in front of the rearend. One guy said it come up off the ground two feet. After the race I had people come to our pit area and ask how did you get a metric car to lift the left front off the ground?" . Aug 24th 2005. race pictures, racing news and season updates for the Frost Racing Team. These cars were meant to ride down the road nice not be fast on dirt, so you have to redo all of the mounts, change the length of the trailing arms, use hiems and/or rubber bushings or even spring loaded trailing arms to build traction. This configuration is common in General Motors cars built in and around the 1980's as well as some Ford cars, such as the Thunderbird, from the same time period. The overall work that a shock does is to resist the rebounding of the springs and control the speed of compression. Ok im building a new circle track car useing a 1981 Camaro. Be careful not to overdue that. In the last article, I talked about the uses of toe and how it affects both drivability and front-end dynamics. Roll Center or Moment Center. Try one or two click on each spring perch shown above to raise the cross weight. All this really depends mostly on the track and maybe the car youre driving. Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! We are only talking about a difference of 0.040- to 0.060-inch, but that is enough to help stabilize our car on exit and provide added bite. ; this was with all four stock trailing arms. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . Some people add preload to the sway bar to make cross weight adjustments. Thank you, that forum is a wealth of information. Setup Tips: These tips are for an independent a-arm front suspension and 3-link rear suspension type of car, but may apply to other types of suspensions as well. However, they should be required to run he two stock lower rear trailing arms in their stock locations. JEFFREYS Fabrication is coming soon!!! A high rear roll center causes a short moment arm in the rear suspension and will stiffen the rear suspension similar to installing very stiff springs. The set-up really planted the RR tire. X-Y-G METRIC STREET STOCK / SPORTSMAN HEADQUARTERs 704-784-5353. Ill provide a couple of tips that will help you get your car tighter or looser, whichever you need. SmartPad BP-30 is a race only pad for heavy braking on dirt, and intermediate needs on asphalt. How to Raise Cross Weight in iRacing Setup. As far as I know, all of the iRacing asphalt cars are adjusted the same way. We ran the car with a lot softer set up than that. AFCO C1 METRIC PADS. . Home. Mod Four Tech. Take the RH arm and cut the tube off at the cross shaft, cut 1" off the tube and weld it back onto the cross shaft. I think everyone agrees that the old leaf spring cars (Camaros and Novas) are becoming harder and harder to find. Long exposure, Nikon D810. did desi arnaz jr have a stroke; moose tracks vs cow tracks ice cream Through trial and error, I spent a lot of time, money and energy learning how to get a race car to go around the corner and end up in victory lane. And as for you Modified and Stocker class teams, don't even think about it. Dirt Race Life is explaining how to draw out the front end on a race car and determine where the roll center is. Ive read alot of stuff, some of it usefull some of it crazy. Wheel Accessories. Most of the time when some ask the question they are at that point and just don't know it. Although Im sure youre backing up your corner and lifting early, it can still wear the right front because the tendency is to lift as late as possible which can cause a faster corner entry than you might realize, causing the RF to heat up. Don't get me wrong, I like our leaf car for obvious reasons, but it would be cool to see a bunch of metrics out there running well also. Street Stock Dirt Oval Racing - All the dirt, clay and pavement-racing excitement in a 1:10 scale RTR. A trend must prove itself in order to stand the test of time. Then should I use brakes more? The sportsman car i had at SAS was always a fast car and it was coil spring 4 link no panhard bar and no weight jacks. We run on a semi flat 1/2 mile asphalt track. Has gone 1.29 60 ft on spray, has 28 10.5 et street tires on it also. Polyethylene Film / PE Sheet If the car feels loose on corner entry, lower the left track bar. Then it's done! The artistry comes in when you actually do it. "One bad person can ruin it for everyone and that is just disrespectful", The Copper has been known to kill tomato plants if placed directly into the stem or base, but placing copper wire around the wound may not have the same effect. Did not get DQ'd but after the race the promoter told him that too many other cars were complaining and he would not be able to run the car in that class. I would get the metric arms from Speedway P-N 910-31134-RH (LH) they are 8.0 and 8.5 long. Moving the pull-bar or just the third link to the left increases the loading on the LR tire during acceleration. It may take a few test sessions to help you determine your balance, but if you observe the indicators correctly, then tuning the car for dynamic balance can be done. I better get the torch and welder dusted off! I also vote for weight jackers in ALL SS or Sportsman level cars simply because they're so cheap and make life so much easier for the teams. If he was at the track and saw the car run he would know that it worked ( by the way it also worked at Eriez ). I was also wondering, are there any tricks you have to make your tires wear slower without damaging speed. Since the spring promotes rebound and resists compression as inherent properties, then the shock rate of compression control must be less than the rate of rebound control. lowers are stock location on frame. Often overlooked in the mainstream, dirt track racing is one of the most exciting forms of tire-scorching car racing action. Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. so I ran a .185 valving. I built the car not the engine . Also the rear springs on that car Dave 24, are either Landrum 200-175 or Afco 194-166can't remember, Only if you are racing anywhere except Bonneville.lol Chad. Designed and built with one thing in mind, WIN RACES. How about just adding a panhard bar to the stock four-link setup? With several wins and a championship under our belt after the first year . Circle Track Setup: The Case for Caster. The front moment center (MC) location plays a huge role in how the front end wants to work. Great advice! I'm thinking that a panhard bar would eliminate side to side motion but little else. 8. Thank You, DreamRacing.com offers a chance to go racing That move took this design to the next level. A 1 1/2-inch top view misalignment with a 44-inch driveshaft results in nearly 2 degrees of angle at both the tranny and the pinion shafts. We also discuss how to identify the cause and the best treatments for each type of pest. That energy has to go somewhere, (1st & 2nd law of thermodynamics) so it can either go into tires causing them to heat up lose grip and wear faster, or you can try to take up some of that heat up into the brakes where it will be dissipated on exit and down the straight. 30 day Money Back Guarantee!- If you don't learn something that helps you go faster, email me and I will refund 100% of your money backAfter payment you will be directed to a download page. I spoke with Dave24 after last weekend, he dropped the fronts down to 700 LF and 800 RF and got the cross down to 45.8%, pulled the bolt out and floated the RR spring. would be able to run on asphalt with the leaf spring cars. 30 day Money Back Guarantee!- If you don't learn something that helps you go faster, email me and I will refund 100% of your money back. I have found that these are the best ways to adjust iRacing setups to suit your driving style, or to handle better under different temperature conditions. The Antis The message I get from those who have worked this trend for a sufficient number of years is one of the following two types: 1) a continuing and constant search for balance in the car and a loss of success on the track, or 2) a returning to the more conventional setups because they have experienced number 1 above. Add to Cart. Russet mites are a type of pest that can cause damage to leaves, stems, and petioles. On a three-link rear suspension you should have the front of your right-side control arm higher than the rear mount by 1/3 of the total amount it will travel in the turns. Another way to gain bite that we have described in the past involves the use of a spring-loaded pull-bar that allows a certain amount of rear end rotation. Now you have to compensate with spring change. Here is an explanation of balance related to the dynamics of the race car. Both of these ICs act like hard points of resistance to lateral movement of the chassis. Letting the metric cars run Camaro spindles would be a step in the right direction. Numerous car builders have come to realize the truth in the above statements. 6 pt roll cage setup for easy in and out street use. Street Stock. RacelineCentral is not responsible for the accuracy of this document, If you are an owner, sponsor, or mentioned here, Please feel free to contact us below for updating. Over the years I have had lots of feedback that most these concepts and ideas work great on dirt, on front wheel drive mini stocks, on almost any street stock, production typerace car. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. Setup Balance Here is a synopsis of how camber effects the handling of the chassis: Here are the diameter choices of the bar: The grill tape option is located under the drivetrain/aero tab within the garage menu. Conclusion Then all you have to do is maintain that balance throughout the season and that means resisting making changes that take you outside that envelope. No matter which stiffness you decide to go with, the most important aspect of setup is balance, and you achieve that balance with the correct combination of springs, moment centers, sway bars, and load distribution. The very last thing you need to worry about is your aero package. Track Tools. Too low a ride height could cause the car to bottom out. A very soft spring would need more compression rate and less rebound rate, whereas a stiff spring would need a lot of rebound rate and much less compression rate. Thats with a 305 a ton less HP. The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. The overall general rule is that the angles between the driveshaft and both the pinion shaft and the transmission output shaft need to be equal and in opposite directions. When the track is cooler, you may want to loosen the car some. Heck, if you are paying 20 bucks to get into the pits you might . Street Stock Tech. In 2005 Victory Circle entered the world of dirt racing. Not sure if there is a standard for metric cars but I havent found any specs on it. Unbalanced setups exhibit easily observed characteristics, such as unusually high degree of wear and temperature on one tire versus the other tires. This is because of the construction using angled, from a top view, arms that converge to points called instant centers. If the LR tire is too cool, then the RR spring is too stiff. The only component were worried about is Quote. competition. Off-centered adjusters can be very inconsistent. In this article, we explore the possibility of russet mites, thrips, spider mites, and other causes of leaf damage. Other competitors will offer you tips, but what works on their car may not work on yours and often they cant explain why something works for them, it just does. It might help to leave it unattached on ovals. The proper steps to do this are outlined below. Pay attention to the left front tire temperatures versus the left rear. Setup Changes For The Metric four-link Even if we can lower the rear RC to around 13 inches, that's still a high rear RC. Nick and I agree on something! You can use your stock metric pitman arm and . The rearend needs to be aligned at 90 degrees to the centerline of the chassis and/or to a line through the center of the right-side tire contact patches. View all S3SS. Steering Geometry 7. I don't know much about spring adjusters hidden or otherwise but I'd say they could be made to work. Thats the theory and the science anyway. My name is Rodney Arndt, I have an associates degree in automotive technology. However, that is only one of the three basic geometric ways to move a tire on a race vehicle. If you need to know the height of your Metric four-link rear roll center, then send an email and I will send you a free calculator to use. Fox80. Pavement Late Models Stock Cars. If you want to know how to adjust iRacing Sprint Car cross weight, go here. It just won't work. Only at teamsimkins.com. I'm not saying this is not important to some degree, but on short tracks I would stress that aero downforce is over-rated in most cases. RAceman. The lateral location of the third link can affect the distribution of load among the two rear tires that results from acceleration and antisquat. Add to Cart. Antisquat results from the third link trying to straighten out, or become more horizontal as the car accelerates and the rear end desires to rotate. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. Bump Springs Tech. If the camaros are allowed adjustable rear shackles and are allowed to use different lowering blocks then they already have weight jacks and are allowed to adjusted rear roll center. PREMIER. What do I do if the car is loose or tight throughout the corner? It is not advantageous to have the rearend steer to the right at any time on asphalt. Includes: Performance handling basics, chassis & roll cage fabrication, front suspension alignment, changing the roll center and camber curve, rear suspensions, springs and shocks, tires (bias and radial), stagger, gearing, basic chassis set-up for asphalt and dirt tracks, weight adjustments, tuning the car to . 1980 Camaro bomber class street stock crate motor ford 9inch. The track was a 5/8 mile asphalt and was extremely fast. Im using a 9" floater, locker, 60" w/centered pinion. A 1/2 inch height change from level can make significant handling changes. At some point, we take in enough information to allow us to avoid the mistakes of the past and get ahead of the curve in setting up our asphalt cars. View Profile View Forum Posts Private Message Visit Homepage 02-25-2021, 09:09 AM. Still having problems? The idea is to steer the car using different height holes for the rear control arm mounts. I think if I had the opportunity I could make the 4-link work on asphalt using a similar set-up that I used on dirt. Posted August 22, 2005. These desires are directly influenced by the spring stiffness, location, and spring split, the sprung weight the system has to support, along with the moment center locations and other settings. LOL. Car has stock location rear links and stock links , different bushings . And, some aspects of chassis setup build on other aspects. Built to the same high standards of safety, quality and craftsmanship that has made Port City Racecars an industry leader. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. For me its very hard to be consistent and to adapt to the changing track states! Bush i agree with your Eriez/ 7 comment. That was the only time that car was really fun to drive even though I opted not to go to tech because it was not legal for THR rules. 97 to 2004 set up sheet for stock metric lowers ride height lf 3 1 2 to 4 rf 4 1 2 lr 11 1 4 to 11 1 2 rr 11 1 2 4 link amp 3 link lf 1100 rf 1000 these spring rates are a good starting point some tracks call for a little less and some for a more don t listen to your buddies on spring rates because different, the 4 5 / 20 Here are what we consider to be the 10 most important areas of chassis setup with No. is applied to the front bumper & air dam of the car covering the openings for air flow to the various components that are cooled through Thanks g dirt i will try that.im not totaly done with car yet just try to get ideas thanks, you are real close to what guys are running, but g is right, scale the car, i run leaf springs or i would tell you what i was running. JP, are you saying that you were allowed to run it in that form - stock lowers with an aftermarket upper link? Maybe not on little tires either. Cvracer5. This force is resisted by the ball joints and control amrs. Camber was -2 deg on RH and +2 deg on LH at ride height. Using our asphalt design technology as a building block and the dirt experience of our new shop foreman we designed our first dirt late model. A good handling car can make gobs of horsepower and hook it up. Street Stock Setups - Custom iRacing Setups and Paints for dirt oval and asphalt oval cars. These are the general rules unless you are trying to "tie down" a corner. My truck has weight jacks and a stock 4 link. Check with the rules to see if it's even mentioned. We were allowed weight jacks and after market uppers in front also. Did you see anything interesting? The 1st thing we will need to do is look at the car, where are we with your current setup and how far can we go with that setup. Going way back I remember running a early 70's Nova in the street stock division at the old Nazareth 1/2 mile dirt track in the early 80's. Damn, they were some wild nights up there. To sort of act as a pull bar? Circle Track Wheels. Required fields are marked *. Forum Actions: Forum Statistics: Threads: 1; LIT-719 80292 C7 Corvette Radiator. If the car feels loose throughout the corner, lower both track bars evenly. You need to keep the ride heights as close as possible to where they were before you started. But if you cant 11 inchers is all you can go. Adjust all four spring perch offsets to change the cross weight. Go here but read before you post..lol. Yea how many years ago a1? If all of these issues are evaluated and corrected, then you can move on. Still, teams want the most they can get out of their cars and if all of the above nine items are in order, by all means, go ahead with aero tweaking. If you could slide the MC to the right, or outside of the turn for you road racers, the front end will get stiffer. Chassis. Lift earlier, and/or drag the brake just a little bit on entry. Setup Tools. I would rather race 100% legal with a rule book that is written 100% clear and specific, that is enforced as it is written. I just think frames are harder to come by, so are stock blocks, so the old stock and hobby classes are a dying breed. Just giving the car more rear traction, period, does not help us if the car becomes too tight in the middle of the turns and we could end up with the reverse of what we need. I dont really recommend it. Since the braking forces are in the opposite direction, there is a serious resistant force created which helps prevent the front suspension from moving in compression too quickly while braking. //-->. For a better experience, please enable JavaScript in your browser before proceeding. For warmer track temperatures, you are going to need to tighten the car. The influence of the location of the front MC can be compared to a sliding scale. A set up plan will help you to build a race winning effort. A Setup To-Do List to Get You Started . var email = "RacelineCentral" They aren't expensive to buy or install, WB shocks are the same price as stock mount ones and bolts allow for much easier tuning. Adjustment Guide - Medieval Chassis. SR10 Dirt Oval RTR. The rear won't desire much roll and there will be excess load transfer to the outer wheel and tire. Take a look at a metric street stock rear suspension video. The car will turn better and we will have more bite off the corners. Contact Us. That's just a thought, i don't know that for sure. 2. Most of the ideas in this book are perfectly legal for any rule book. My old car had a stock frame front to back with just the suspension pick-up points changed, it took a lot of trial and error over three years to get a good baseline for most tracks. Coreless Stretch Film; Pre-Stretch Film; Hand Roll; Machine Roll; Jumbo Roll; Industrial Plastic Division. This is what I did to my Metric that won the 2012 UMP National Championship. Those cars are coming around becoming competitive. As each season comes along, our knowledge of what we need and desire grows. Splash = 2-3 gallons, 1/2 can = 5-6 gallons, 1 can = 11-12 gallons, 1 1/2 cans = 17-18 gallons, 2 cans = full tank. MSRP: $515.99. I will post as I no longer race, the biggest thing is the angle of the upper and lower control arms in the rear, you need to understand roll center and instant center to be able to adjust it correctly. For the most accurate Setup and Tech Support, download our Scale & Setup Sheet, fill it out with as much information as you can and then fax it to us at 402-228-4796. Long gone are the days of saying that the MC is not important. Before you start your season, you need to create your This will loosen the car, and that's undesirable, especially on dirt. On a metric four-link car, the four control arms determine the rear moment center height too. In short, you'll get more rear grip by lowering the rear RC. This tape Filter by. So don't try it. I think I'll make a proposal along these lines. $1,700. Posted October 3, 2005. Adjust the cross weight for more extreme conditions or different circumstances. Im lifting early and using zero brake. Current Stock: Quantity: Decrease Quantity: Increase Quantity: Save to Wishlist. The effect is huge. If the car feels tight on corner exit, raise the right track bar. How to Lower the Cross Weight in an iRacing Setup. Conversion to Race Car When we convert a Metric four-link suspension to a racing application, we need to be aware of several important factors. Love it when people explain why somethings done rather than just saying this is how its done., Thank you Jeff! If the car feels loose throughout the corner, lower both track bars evenly. Try to understand how aero downforce is created and then configure your car so that you take advantage of every area where you could produce more downforce. Its important to make even adjustments, meaning you should make the same number of clicks on each spring perch. I think with the panard bar and 3rd link the metric cars. Here are some recommendations. For example, if your initial setup is 52 percent cross-weight, and you want 50 percent cross-weight, lowering the right front or left rear corner will decrease cross-weight percentage. by RonL Fri Jan 02, 2015 12:36 am, Post Most good cars are built on wheel scales. Bite Off The Corners As for stock arms they worked just fine ,and didn't cost anything. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). Officials are trained to find sneaky parts. It costs just as much money, if not more, to run poorly, so you might as well learn to run well. Any angle up hill to the right rear will cause upward force on both tires and unload both tires. Administrator. My Metric front end setup. Do not attempt to open the setup file in Windows. If the same stiffly shocked corner is in rebound, less of the overall load will be retained by that corner, and its diagonal corner as well, during the rebound cycle only. And, of course, Terry chose to park it. The components that locate the rear end must be evaluated and set correctly. The use of softer front springs, larger sway bars, and big spring split in the rear has swept across the country for more than five years now with mixed results. Anderson , IN. Sometimes the handling of the car might not be to your liking. Location:Austin, Tx. Your statement that the 3-link is what the metrics needed to level the playing field is the type of feedback that tech. The Metric four-link suspension design is a bit different than most other rear suspensions. I got a 1000 on ebay 150897831883 at like $5.00 I would do 1100 RF, 1000 LF, 225 LR and, 175 RR but that was on big chevelle or impala chassis. We had LF 1000, RF1300, LR 200, RR200. If we can raise the upper front link mounts, we can lower the rear RC by lowering the upper IC. Free . Subtle changes often go unnoticed, especially when they're hard to see without jacking the car up and crawling underneath. Fast And Furious. You must try to determine if your setup is balanced and then if not, make the necessary changes to bring it into a balanced state. Sort by. Chassis Tuning 101 Murfdogg. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. . If the car feels loose on corner exit, lower the right track bar. I understand not wanting to share to much especially if your a racer, but who or where else can I gain info on this? If we have a top view difference in alignment between the transmission output shaft and the pinion shaft and they are parallel, then the angle to the driveshaft created by that misalignment might be sufficient to provide the needed angular differential needed for loading the U-joint bearings and reducing negative harmonics.