Fox80. 6 pt roll cage setup for easy in and out street use. I followed the progress of the THR #01 SS very closely and when Terry says he tried everything legally possible to get that rear end to quit binding up during body roll, he's not exagerating. By In order to perform the set up routine the car needs to be completely ready to race. 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. Click. Port City Racecars Road Race Chassis is a purpose-built racing machine. There are ways to do that without changing the handling at other points around the racetrack. The idea is to steer the car using different height holes for the rear control arm mounts. It was either cheat or park it until the rules change. Afco Racing Products. I drove the #01 ss for two years and tried everything I could think of within the rules and it was a hard job to keep the car in control because of the binding of the rear suspension. Disconnect the sway bar and zero (unload) it. Each end has its own moment arm length and resistance to roll as well as other factors. I would run either the pure stock or street stock class. As far as I know, all of the iRacing asphalt cars are adjusted the same way. We had no idea how popular and successful this line of chassis would be. With setups that use a very stiff right rear spring, the angle of the right trailing arm will need to be less than when using a conventional softer spring because that corner will move less. I have always believed in priorities because you can make gains faster when you solve the high priorities problems first. 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. When you enter the corner you are going to slow down. 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. The number one reason a car will be tight and not want to turn is because the front end is not designed properly. 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. PREMIER. Lee Christjohn of Antigo, WI knows what it takes to win street stock races. I noticed the camaros can arch or de arch springs. Save these setup files to C:\Documents\iRacing\setups\dirtstreetstock\. A trend must prove itself in order to stand the test of time. Yes, I get inquiries about how to apply the BBSS setups to both of these types of cars. Officials are trained to find sneaky parts. I built the car not the engine . There are two main ways to tighten or loosen the car. The moment arm is 5.5 inches for the Late Model and is much easier to set up. Stock chassis that has been: Boxed, second "inner" frame tube added, suspension pickup points doubled and gusseted, rear frame notch (for future, wider tires), cross braces at front, rear shocks, and rear of frame. 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. The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) Conversely, if the car feels tight throughout the corner, raise both track bars. Online: $349.99. Any angle up hill to the right rear will cause upward force on both tires and unload both tires. Location:Austin, Tx. by RonL Fri Jan 02, 2015 12:36 am, Post Add to Cart. We had LF 1000, RF1300, LR 200, RR200. This setup guide also has new information based on the changes that go along with the new version of the sim. Remember, we're still using stock components, we're just making small relocations of those points. This develops more crossweight as the car squats on acceleration. Greetings guys, Im new to the site. Administrator. It may not display this or other websites correctly. The front end takes time and effort to get the bump steer and caster gain within a tolerable amount, you have to move the upper and lower control arm mounts, cut the left side lower control arm, use special length ball joints, etc, etc. If the car feels loose throughout the corner, lower both track bars evenly. They arent usually as good at spotting little modifications to every single part of the suspension. The metric cars can use different size spring spacers as well, so the playing field is already level in that respect. ; C1 - Designed for medium to low brake temperatures and provides good cold bite while being rotor friendly. It must show a consistent gain in performance and a logical ideology to the bulk of race teams. So, in most cases, we need to run a softer spring in the right rear. Poorboy, I think you're exactly right. Play the all new "DANNY SIMKINS - 11 STRAIGHT - trivia game." 122. Setup Tools. Contact Us. #1. 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. That is the essence of shock technology related to handling influences. Required fields are marked *. The Antis LIT-A950700016 80275NDP Ford Mustang Cobra HE. We make it with either steel panels, or aluminium panels. That move took this design to the next level. Plan to win in a repeatable fashion. The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. SAS I seem to remember being faster than the sportsmans. Adjust all four spring perch offsets to change the cross weight. The Camaro's we were running against could have weight jacks and tubular uppers as well so it was pretty even. This variety grows best when grown alone and can reach up to 12 feet tall. One way is to have a rear spring split, where the right rear (RR) spring has less spring rate than the LR spring. Then it's done! Built to the same high standards of safety, quality and craftsmanship that has made Port City Racecars an industry leader. Verndale, MN. The upper BJ is trying to be forced in a forward direction and the lower BJ is trying to be forced in a rearward direction. Create New Wish List . Strictly asphalt street stocks and parts. In short, you'll get more rear grip by lowering the rear RC. Manyof the ideas fit into the gray areas and some of them are outright cheating. Once you have evaluated all of the above and feel fairly confident that the car is set up correctly, you should then work to tune the transitions into and off of the corners with the shocks. where can i get info on the set ups for a metric chassis short track dirt car, Do Not Sell or Share My Personal Information. From NE Ohio to North Central Mississippi, everyone has their own ideas and preferences for what they will plant this year. We had LF 1000, RF1300. That is the best description of the result of the dynamic force that influences each system. 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. Go here but read before you post..lol. Its important to make even adjustments, meaning you should make the same number of clicks on each spring perch. .220 to .235 would be fine without a quickner. And, it must be economically applied. "One bad person can ruin it for everyone and that is just disrespectful", The That extra effort is what separates the front runners from the rest of the field. 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. I never got to the experimenting stage on asphalt. 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. the force of air. It costs just as much money, if not more, to run poorly, so you might as well learn to run well. Modified Cars for Sale IMCA Asphalt modified Setup Asphalt Modified Race Cars Asphalt Street Stock Setup Asphalt modified for Sale Asphalt modified Set Up The ULTIMATE Racing Car Chassis Setup Guide and Everything you need to know to build, set-up and race a Street Stock competitively. One guy said it come up off the ground two feet. $1,700. ! If the LR tire is too cool, then the RR spring is too stiff. 10702FMI FRAME & CAGE - FAB IMPALA MOD. When we recently set up our Project Modified for our first race, we followed a simple list of to-do items that are the same for every race car I ever set up. 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. In 2010 we made a good car better by a design change with the introduction of the Chevelle front clip. 1. lowers are stock location on frame. When the LF is too cold, the RR spring is too soft. And, some aspects of chassis setup build on other aspects. As the rear end rotates on acceleration, the left wheel moves rearward more so than the right wheel, creating a slight amount of rear steer to the left. 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. You might try a little trail braking. The reason I say that with confidence, is because I have gone up against more aero efficient cars with setups and body configurations that were aero-deficient and still out ran them. 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. When this book was originally published in 2001 it was specifically for GM Metric chassis (78 or newer Malibu, Monte Carlo, Regal and Cutlass cars) racing on asphalt. SUCH AS SPRINGS, SHOCKS, SWAYBARS ETC. This will loosen the car, and that's undesirable, especially on dirt. Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. The surest way to get disqualified is to bolt an illegal part onto your car. Your statement that the 3-link is what the metrics needed to level the playing field is the type of feedback that tech. Oct 12, 2013 #2. It has been found that the misalignment of your tires/wheels presents serious drawbacks to a finely tuned chassis and setup. Most Metric cars I've evaluated have rear RC's up around 14.5 inches off the ground. The engine should always be aligned perpendicular to the rearend and/or parallel to the centerline of the car. I feel the metrics should definitely be allowed panhard bars and rear weight jacks. var emailHost = "hotmail.com" Basically - after you finish the set up routine, the car goes in the hauler. This tape Has boxed lowers, adjustable uppers , stock springs and shock. Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. Competitions are held on oval tracks . I don't get too many reports of continual, repeated wins and successes. Bush i agree with your Eriez/ 7 comment. Location. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. This configuration is common in General Motors cars built in and around . It would be nice if we could change the rear suspension, I have done a lot of research on it and have found some info, there is just not a lot legally that can be done with it. Im lifting early and using zero brake. Would it be too much of an advantage to let these guys run a 3-link rear with solid links and panhard bar? Current Stock: Quantity: Decrease Quantity: Increase Quantity: Save to Wishlist. 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. 2,224. The Metric four-link suspension design is a bit different than most other rear suspensions. If those desired angles are different, then we term the setup unbalanced. Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! Johnny likes a softer feeling car, front and back. When thisbook was originally published in 2001 it was specifically for GM Metricchassis (78 or newer Malibu, Monte Carlo, Regal and Cutlass cars) racing on asphalt. Both of these are necessary components that will be needed to win championships. The problem on dirt is the high rear roll center. If we arrange our control arm angles, from a side view, for antidive, then as the car dives the upper BJ would move to the rear and the bottom BJ would move to the front. The Metric four-link Roll Center The metric roll center is quite high compared to other rear suspension systems, such as the three-link with Panhard bar, the leaf spring system, and the Watts link. Post For a better experience, please enable JavaScript in your browser before proceeding. 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. 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. If the car is tight under throttle, or driving off the left rear, invert the spring perch offset adjustment procedure above. If it is too far to one side, then changes to the brake master cylinder sizes and/or the pad compounds might need to be made in order to maintain a centered-bias adjuster. Thanks a lot for making it. I thought these were street STOCKS? These are the general rules unless you are trying to "tie down" a corner. Antidive and antisquat are mechanical influences that can help our transitional phases of entry and exit. I see the times at CCMS are identical, THR the truck .5 sec quicker. 6. The CCMS rules allow 3rd link and panhard bar. Posts: 72. 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. We ran the car with a lot softer set up than that. How do I adjust the cross weight in an iRacing setup? 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. 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 It is this sliding scale situation that determines the stiffness of your front end. The setup we choose needs to be arranged so that the dynamics are balanced between the front and the rear suspensions. FOR 78-88 GM METRIC CARS. It is not advantageous to have the rearend steer to the right at any time on asphalt. The proper steps to do this are outlined below. There is one IC for the upper links and one for the lower links. This will be a brief tutorial that should help iRacers adjust their setups to better suit their driving styles. Just about all the available setup options that you can adjust on a real WC car can be adjusted in the sim. The rear won't desire much roll and there will be excess load transfer to the outer wheel and tire. A complete body comes with the fiberglass hood and roof, plastic MD3 nose and tail, a set of skirts, trunk, a box of rivets. Might go25- 50 pds more on each side and the left side should be more than the right side. . Full of fuel, everything done, full of oil, lead bolted down. Much of the same information translates over to NASCAR Racing as well. The car may or may not be neutral in handling, but the handling will not be consistent. Leaf springs are important when towing heavy objects.Bear with me here, this digs a little deeper into how leaf spring suspensions work. That's why I asked about weight jacks in the original post. Conversely, if the car feels tight throughout the corner, raise both track bars. For the lower links, lowering the chassis mounts at the front of the link lowers the rear RC. 507-386-3930. If you can use bucket and run a taller sprign thats a good way to go. The front geometry on a metric car isnt as good as a Camaro though. With several wins and a championship under our belt after the first year . As these pads get hot, they offer more friction, and still work well at over 1000 degrees. Most guys that are fast there are fast everywhere. Check your PM's. SR10 Dirt Oval RTR. This is because of the construction using angled, from a top view, arms that converge to points called instant centers. It is a low acid tomato with a unique flavor that has been described as sweet, yet slightly tangy. I never felt good about cheating but when everyone does you need an even playing field. These cars drive off the left rear more to keep them from being to loose, that is why you are starting to see the LF coming off the racetrack, it takes proper weight placement, rear bushing selection, spring choice, and ride heights to make it have a lot of traction but not be a three wheel out of control mess. See all 6 photos. Maybe not on little tires either. Some people add preload to the sway bar to make cross weight adjustments. Dial In Your Metric. Anderson , IN. We also need to establish a ride height that will both be appropriate for our type of racing and also help to establish the best roll center height. Is this why Im wearing out the right front? 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 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. Chassis Setup Docs Hyper Racing. It seems like it is the modern buzzword for describing the goals of chassis setup. Most of the time when some ask the question they are at that point and just don't know it. I would trail brake or lift earlier. Join OSR Voice/Text Chat. Nick might be a better theory guy but I don't think that just adding a panhard bar will get you there. 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. Balance is spoken of in all types of motorsports these days, even F1. 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. The MC should always be somewhere close to the centerline (i.e., midway between the tire contact patches). Lift earlier, and/or drag the brake just a little bit on entry. Swap Option: Medieval will build the chassis using one of our sandblasted frames. Yes, outright violations are penalized, but creative interpretations or improvements in area that have no specific rule usually get the Don't bring that backnext week penalty. Once the setup has been balanced and the shocks are decided upon, we need to evaluate the turn-entry characteristics and the fact that brake bias is a very important influence at this segment of the track. The cross weight adjustments should work on all dirt cars except the Sprint Cars. I'm a former NASCAR short track driver and league administrator for SASCAR. jp. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). When the track is cooler, you may want to loosen the car some. Thank You, DreamRacing.com offers a chance to go racing Its a whole lot more driver and a whole lot less setup on dirt. To sort of act as a pull bar? Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. 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. Over the years I have had lots of feedback that most . I would rather race 100% legal with a rule book that is written 100% clear and specific, that is enforced as it is written. Race Car Street Stock Set Up help manual book. Less fuel equals faster speeds. Setup Tips for Metric on asphalt racecheep. Biggest change is getting ride height . It depends on your rule book and it's enforcement. We must develop ways to create more rear traction on acceleration only. Caster. 5. 1 Min Read. 2. Estler's Mortgage Lifter is ideal for growing in northern climates due to its ability to withstand cooler temperatures better than other varieties. In an effort to clear up some of the confusion over all the setup options included within NASCAR Racing, I decided to put this guide together to help you better understand what, why, & how adjustments are made in the sim. Home. Heck, if you are paying 20 bucks to get into the pits you might . This means keep track of weight coming off and going on. S3 - Street Stock - USA $4.00; S3 - Street Stock - Lanier $4.00; S3 - Street Stock . After you get the cross weight where you want it, adjust the ride heights. This guide was awesome! 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. How about just adding a panhard bar to the stock four-link setup? That troubles me. Reply #9 - 05/01/09 at 8:00pm. Here are what we consider to be the 10 most important areas of chassis setup with No. Chassis Tuning 101 Murfdogg. Has gone 1.29 60 ft on spray, has 28 10.5 et street tires on it also. Good luck and keep the rubber side down!!! However, tie down shocks are becoming less and less desirable. Christjohn likes to get to the track early and get his car set up so he can watch the races. But there is still some changes to be made from track to track. Long gone are the days of saying that the MC is not important. The amount of resistance is directly related to the degree of side view angle we put in our control arms and the amount of brake force used. To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. also get to the scales whenever you can. Taipei Taxis, City Traffic Taiwan Street scene in the capital city of Taiwan at dusk with motion blurred taxis and traffic in the streets. Adjust drag link accordingly, *unless something is bent, spindles, drag link, idler arms, etc. Antidive helps prevent sudden nose dive on entry by mechanically resisting the downward motion of the suspension using the rotational forces created through braking. It locates the rearend fore and aft, it reduces rear steer when the chassis rolls, it prevents axle wrap-up when braking or accelerating, and it provides a relatively stable roll center location. LIT-719 80292 C7 Corvette Radiator. Cvracer5. It is not advantageous to have the rearend steer to the right at any time on asphalt. You need to keep the ride heights as close as possible to where they were before you started. Track Tools. The dynamics of the moment center and the effects of camber change have been explained before. These components include the radiator, oil/transmission coolers, & brakes. See All - Best Selling. We do not want to try to solve turn entry problems with the brake bias, we only need to make sure the car stays neutral in handling when the brakes are applied. We even did pretty good with it in the THR LLM class back in `99. Posted 5 weeks ago. by doing this and the use of lowering blocks the rear roll center can be changed, I know it's not a quick adjustment but it is an adjustment the the metric car in the stock. would be able to run on asphalt with the leaf spring cars. The rear roll center is certainly part of the problem. Welcome to STLRacing.com, home of St. Louis Motor Racing News. 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. They should be matched up within a couple of degrees of average temperature across the tread. as for the powertrain setup, 40 over 350 basically all stock with 882 heads and a 450lift isky oval track cam, brand new factory q-jet, running a 3-speed saginaw factory clutch/PP pulling the track in first gear, 2.54 with a 2.73 ring/pinion, not very big on power for the setup works VERY well together for this track, if you can keep it . I have had a lot of feedback from teams who did the same with the same results. The Metric four-link suspension design is a bit different than most other rear suspensions. The more third link angle you have, the more antisquat there is. Plan your shock layout by comparing the stiffness of one to the other corners and to the spring stiffness at the corner you are trying to control. I have little experience on dirt but can definetely notice this! If you could slide the MC to the right, or outside of the turn for you road racers, the front end will get stiffer. This guide covers much of the basics for the less experienced sim racer as well as a troubleshooting section that should help reduce your lap times. lol Stocks are turning the same times as emods at most tracks these days, maybe not the top 3 emods, but pretty much the same wich is crazy. Car has stock location rear links and stock links , different bushings . This topic is now archived and is closed to further replies. Tire Tools. Shocks This guide is very similar to the NASCAR Racing setup guide. Be careful not to overdue that. In 2005 Victory Circle entered the world of dirt racing. 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. Yeah! The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration.
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