Location. Antidive helps prevent sudden nose dive on entry by mechanically resisting the downward motion of the suspension using the rotational forces created through braking. This is because of the construction using angled, from a top view, arms that converge to points called instant centers. Thats with a 305 a ton less HP. 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. So, here is, in order of logic and importance, a list of setup parameters we need to address to make our cars fast and consistent. Yeah! race pictures, racing news and season updates for the Frost Racing Team. As you will gather from this book, setting up your car right and properly maintaining it is a lot of work. ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. If we can raise the upper front link mounts, we can lower the rear RC by lowering the upper IC. Use the "new" 7 inch arm on the RH and the 8.5 on the LH. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . You might try a little trail braking. You can then make fine adjustments with the sway bar preload if desired. Free Download Chapter listings from Street Stock Setup Maual 2.1.pdf (PDF). The rear won't desire much roll and there will be excess load transfer to the outer wheel and tire. That's one thing I've really never understood about some street stock classes that don't allow weight jacks. Why Lower The Rear RC? Too low a ride height could cause the car to bottom out. METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. Afco Racing Products. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. Car went anywhere he wanted and was quick time, won the trophy dash, heat . Conversely, if the car feels tight throughout the corner, raise both track bars. We can add the stiffer bushings to most of the points, but leave several, one at the top and one at the bottom, as a rubber bushing to absorb the torque created in roll. I would suggest going to www,4m.net to the tech board. They should be matched up within a couple of degrees of average temperature across the tread. This tape Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! 358091 FAB IMPALA, NO UPPER MOUNTS. MSRP: $515.99. Over the years I have had lots of feedback that most . The bottom line is that at mid-turn, each end will want to roll to its own degree of angle. Dial In Your Metric. 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. In order to perform the set up routine the car needs to be completely ready to race. 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. . Just trying to help someone. The right-side tire contact patches will also need to be inline with the right front tire pointed straight ahead. state doesn't have. 7. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) We showed you the 3-link rear end last week. Antisquat is detrimental to corner entry. Would a 11 in be better or a 13 in spring in back be better. When the track is cooler, you may want to loosen the car some. Make small adjustments, about one half of one percent. So, in most cases, we need to run a softer spring in the right rear. I'm a former NASCAR short track driver and league administrator for SASCAR. This guide is very similar to the NASCAR Racing setup guide. SAS I seem to remember being faster than the sportsmans. There are a lot of things you can do to improve handling. 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. 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. As the front brakes are applied, the caliper grabs the rotor and the motion of the wheel/rotor tries to rotate the spindle. The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. LIT-A950700016 80275NDP Ford Mustang Cobra HE. We cover all forms of racing in the Midwest featuring racing news, results, photos & videos. In short, you'll get more rear grip by lowering the rear RC. JP is that the car you wadded up and broke your leg? This variety grows best when grown alone and can reach up to 12 feet tall. If the car feels loose on corner entry, lower the left track bar. This is our 1988 Monte Carlo Stock Appearing Body. Street Stocks Dur-A-Flex Racing. . The last time I drove that car I put a short third link (11 inches long) and a long panhard bar after that any adjustment I did to the car it did what it was supposed to do. Page 1 of 1. For warmer track temperatures, you are going to need to tighten the car. 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. Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. My truck has weight jacks and a stock 4 link. Always try to start with the track bars first. Adjustment Guide - Medieval Chassis. Conclusion And, it must be economically applied. Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. Ill start of saying i know how to mesure the roll center but im not sure where im trying to go or how to exactly. I remember qualifying times in the 19.6 to 19.7 range. -3 . 03 0@ 34-.=- 2 ++(+'o $ (&%q qqqqqqqqqqqqqqqqqqqq ,&%q qqqqqqqqqqqqqqqqqqq qq (,%q qqqqqqqqqqqqqqqqqqqq ,,%q qqqqqqqqqqqqqqqqqqq qq LIT-718 80291 1997 - 2004 Mustang Radiator. ; C1 - Designed for medium to low brake temperatures and provides good cold bite while being rotor friendly. 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. We can run different sized lowering blocks, but that is not the same as a weight jack from a "quick adjustment" perspective. Cvracer5. See all 6 photos. Those cars are coming around becoming competitive. Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. But the most useful rear steer will only occur on acceleration and not at mid-turn. Ill provide a couple of tips that will help you get your car tighter or looser, whichever you need. Do not seek aero downforce at the expense of aero drag increase. 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. I drive both a metric (my truck) and a leaf spring car (ss). The influence of the location of the front MC can be compared to a sliding scale. 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. What do I do if the car is loose or tight throughout the corner? Forum Actions: Forum Statistics: Threads: 1; 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. men need when considering these types of changes. 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?" Some people add preload to the sway bar to make cross weight adjustments. In the last article, I talked about the uses of toe and how it affects both drivability and front-end dynamics. The CCMS rules allow 3rd link and panhard bar. The set-up really planted the RR tire. View Profile View Forum Posts Private Message Visit Homepage 02-25-2021, 09:09 AM. 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. See auction date, current bid, equipment specs, and seller information for each lot. Taipei Taxis, City Traffic Taiwan Street scene in the capital city of Taiwan at dusk with motion blurred taxis and traffic in the streets. Compare that to an asphalt Late Model car with a rear Panhard or J-bar and a 10-inch rear RC height and a 15.5 inch CG height. 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 fruits of this plant are large and can weigh over one pound. As these pads get hot, they offer more friction, and still work well at over 1000 degrees. Not sure how much traffic this post will get here. If the car feels loose throughout the corner, lower both track bars evenly. Add to Cart. That extra effort is what separates the front runners from the rest of the field. That is the essence of shock technology related to handling influences. If you want to know how to adjust iRacing Sprint Car cross weight, go here. Johnny likes a softer feeling car, front and back. There's a happy medium between running just the right soft right rear and going too soft. Chassis Tuning 101 Murfdogg. . Its not necessary unless your own a road course. 6. I measured ours at close to 20". I built Couchenours 99 car . Just about all the available setup options that you can adjust on a real WC car can be adjusted in the sim. We are at a crossroads at this point in time with setup technology in asphalt racing. Circle Track Wheels. Has gone 1.29 60 ft on spray, has 28 10.5 et street tires on it also. Designed and built with one thing in mind, WIN RACES. This setup guide also has new information based on the changes that go along with the new version of the sim. //-->. There is no one big trick to make your care handle better, rather its all the little things done right that will make you consistently fast. Your statement that the 3-link is what the metrics needed to level the playing field is the type of feedback that tech. JP, are you saying that you were allowed to run it in that form - stock lowers with an aftermarket upper link? Manyof the ideas fit into the gray areas and some of them are outright cheating. The images used are taken from the iRacing Super Late Model setup screen. I would say 99's priorities worked just fine. ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing. Biggest change is getting ride height . Caster. All this really depends mostly on the track and maybe the car youre driving. Now you have to compensate with spring change. Check with the rules to see if it's even mentioned. Remember that drag is an important aspect of aero design. Posted October 3, 2005. This will help keep your ride heights in the ballpark. Grill tape is nothing more than duct tape. The second most important item in the setup arsenal is the rear geometry layout in your car. Built to the same high standards of safety, quality and craftsmanship that has made Port City Racecars an industry leader. With allot of experimenting I found a way to really get the car to hook up. 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. 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. Sometimes weather differences will require changes to either tighten or loosen the setup. It may not display this or other websites correctly. Samuel232. Note the new cross weight and the ride heights. I dont really recommend it. To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. 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. Hardcore Package - $5,700 (2023 Pricing) *Some components included in the package are not shown in picture below*. 4. 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. What Are Russet Mites? Lowering the rear RC and softening the RR spring will help solve the problem. By Bob Bolles, Circle Track Magazine . 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. After you get the cross weight where you want it, adjust the ride heights. AFCO C2 METRIC PADS $179.99. The metrics at THR are NOT competitive compared to the leaf cars. Quick view. I guess the leaf cars could be allowed adjustable shackles in the rear to even that one out, sort-of. If you find that the left rear is the coolest tire on the car, then you have a setup balance problem where the rear is too stiff. Shocks affect the motion of the corners of the car and therefore the placement of loads during transitional periods. Online: $349.99. Im using a 9" floater, locker, 60" w/centered pinion. The car may or may not be neutral in handling, but the handling will not be consistent. It's the average height of the instant centers that determine the roll center height. by rick7343 Fri May 01, 2015 5:14 pm, Post We had LF 1000, RF1300, LR 200, RR200. The idea is to steer the car using different height holes for the rear control arm mounts. Everything you need to know to build, set-up and race a Street Stock competitively. jp. Conversely, if the car feels tight throughout the corner, raise both track bars. var emailHost = "hotmail.com" 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. The Metric four-link suspension design is a bit different than most other rear suspensions. Nick and I agree on something! I can understand not allowing alot of stuff from a cost perspective but weight jacks seem to be one of those things that are cheap to begin with and you end up spending 3 times as much money and alot more time trying to get the same result while complying with rules that don't allow them. Probably to the guys that are beating you! How about just adding a panhard bar to the stock four-link setup? If the car feels loose on corner entry, lower the left track bar. LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. Only at teamsimkins.com. The cameros have been better then the metric cars at SAS for years,they used to let the metric cars raise the spring pockets in the rear if I remember right,I don't remember what else they were allowed to do though to be competitive. Verndale, MN. I'm thinking about building a B Body for dirt track racing. That's why I asked about weight jacks in the original post. 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. Competitions are held on oval tracks . And I do agree weight jacks don't cost much, sure is alot easier to do the same thing we were doing with hidden couplers and shims . Location:Austin, Tx. The effect is huge. Great advice! Reply #9 - 05/01/09 at 8:00pm. Unbalanced setups exhibit easily observed characteristics, such as unusually high degree of wear and temperature on one tire versus the other tires. Moderators:FeliciaMC88, UFo Race Championship. 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 Try one or two click on each spring perch shown above to raise the cross weight. A good handling car can make gobs of horsepower and hook it up. Disconnect the sway bar and zero (unload) it. did desi arnaz jr have a stroke; moose tracks vs cow tracks ice cream Over the years, most of the things that I have learned about racing, I've learned the hard way. Get the best deals on Asphalt Oval Racing Parts when you shop the largest online selection at eBay.com. That was it. 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. It depends on your rule book and it's enforcement. IMHO they should be able to remove the two upper rear control arms and replace them with a single, fabricated, adjustable upper control arm (top link). This force is resisted by the ball joints and control amrs. Jul 25, 2011. For a better experience, please enable JavaScript in your browser before proceeding. 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. If the car's center of gravity was say 16.5 inches (around average for an asphalt car that has been lowered), there would only be a 2-inch moment arm to try to roll the car. ; this was with all four stock trailing arms. Alignment The proper steps to do this are outlined below. We must develop ways to create more rear traction on acceleration only. Save these setup files to C:\Documents\iRacing\setups\dirtstreetstock\. A tight condition is the number one complaint from drivers. by RonL Fri Jan 02, 2015 12:36 am, Post Adding neoprene bushings to all of the connection points will unnecessarily restrict movement and cause the chassis to be stiff in roll. I think I'll make a proposal along these lines. Get it right or don't get it at all. 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. The left side suspension usually is designed with about half the angle of the right side in a conventional design. RacelineCentral.com All Rights Reserved, NASCAR 2K3 Racing Season Garage 101 Guide Download, Creative Commons Attribution-Noncommercial-No Derivative Works 2.5. You refering to dirt track racing correct? Divide that in half for the center of the wheel. First of all, the design is intended to solve several problems. 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. Still having problems? Happy New Year. 2.Now set toe out. We have continually pressed these issues because of the extreme importance they have. 8. They have all kinds of articles and how to write ups on what to do with a metric four link to make it work better, how to use things like bump stops, progressive springs, gas shocks, sliding ballast, to make a car faster and more drivable. Street Stock Setups - Custom iRacing Setups and Paints for dirt oval and asphalt oval cars. Pavement Late Models Stock Cars. We also might want to change the locations of the chassis and/or rearend mounts for the links. 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. One way is to have a rear spring split, where the right rear (RR) spring has less spring rate than the LR spring. We took all the cross out like Lee and trailed the RR and did not use much stagger. Metrics can be competitive IF they are permitted to address their four-point rear suspension problems. Street Stock Tech. LOL. . Got protested and is now in limbo! $1,700. Poorboy, I think you're exactly right. Our second design in our dirt chassis line this IMCA legal metric clip car designed in 2006 was already proving itself to be a successful chassis. Adjust the cross weight for more extreme conditions or different circumstances. This guide was awesome! If you have any problem with the download, just email me, and I will email or Facebook you your file. Would it be too much of an advantage to let these guys run a 3-link rear with solid links and panhard bar? I had a very experienced racer come out and help us one time and he said the problem he saw with the car is the rear end looked as if it was shifting to the left by a couple inches. I have had a lot of feedback from teams who did the same with the same results. The upper IC is to the rear of the rearend and the IC for the lower links is well in front of the rearend. View all S3SS. Swap Option: Medieval will build the chassis using one of our sandblasted frames. Create New Wish List . jp. My name is Rodney Arndt, I have an associates degree in automotive technology. We have been softening those setups over the years, but never intended to go to coil bind or bump rubbers. I appreciate the lead. Bilstein has put together the ultimate Street Stock / Factory Stock Shock Package. Not sure if there is a standard for metric cars but I havent found any specs on it. 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 metric cars at THR are at a big disadvantage in terms of track width, ride height, and rear suspension but if they were to be able to use a third link and panhard bar they can be very competitive even without weight jacks. Fox80. . 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. So, again this year as in past years, we will present what is admittedly the formula for success related more for the conventional and what we call soft conventional setups mainly because these are the ones that produce more consistency and do win races. Taipei, Taiwan. lowers are stock location on frame. It is this sliding scale situation that determines the stiffness of your front end. LIT-A950700006 80249N Ford F-150 LightningHarley HE. Is this why Im wearing out the right front? 266. 1 being the most important. SR10 Dirt Oval RTR. As for stock arms they worked just fine ,and didn't cost anything. LOL. With so many different combinations of possibilities it leaves us with literally thousands of possible chassis combinations to choose from. The only component were worried about is I once drove a metric on both dirt and asphalt. I was also wondering, are there any tricks you have to make your tires wear slower without damaging speed. Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. 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. 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. racing on asphalt. 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. These components include the radiator, oil/transmission coolers, & brakes. 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 control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. would be able to run on asphalt with the leaf spring cars. Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . Bilstein Stock Car Shock Package Fits the popular metric chassis (4) Front shocks (3) Rear Shocks Stock Mount front and rear Additional Features Nitrogen Gas . Add Comment. Most of the time when some ask the question they are at that point and just don't know it. Setup Tips for Metric on asphalt. Thank You, DreamRacing.com offers a chance to go racing Both of these ICs act like hard points of resistance to lateral movement of the chassis. 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. 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. I don't get too many reports of continual, repeated wins and successes. Even when clear rules exist, the track officials are often reluctant to enforce them. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage.
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