Brian Wise. We showed you the 3-link rear end last week. Street Stock Dirt Oval Racing - All the dirt, clay and pavement-racing excitement in a 1:10 scale RTR. Quick view. This topic is now archived and is closed to further replies. 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. This variety grows best when grown alone and can reach up to 12 feet tall. How to Open the Setups. Some people add preload to the sway bar to make cross weight adjustments. by rick7343 Fri May 01, 2015 5:14 pm, Post var email = "RacelineCentral" These components include the radiator, oil/transmission coolers, & brakes. The car is loose mid to exit with not foward drive. iRacing Dirt Street Stock Setups - Old School Racing Motorsports 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. Ive read alot of stuff, some of it usefull some of it crazy. 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. Ive made the brackets on the rear housing (lowers) longer with trailing arm mounts that have 3 . LIT-719 80292 C7 Corvette Radiator. Good luck and keep the rubber side down!!! SR10 Dirt Oval RTR. So, in most cases, we need to run a softer spring in the right rear. A level panhard bar ( same mounting height on both sides) means force is vectored laterally to the tires. 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 . They should be matched up within a couple of degrees of average temperature across the tread. Camber was -2 deg on RH and +2 deg on LH at ride height. As each season comes along, our knowledge of what we need and desire grows. 507-386-3930. The MC should always be somewhere close to the centerline (i.e., midway between the tire contact patches). by RonL Fri Jan 02, 2015 12:36 am, Post Biggest change is getting ride height . SAS I seem to remember being faster than the sportsmans. I'm thinking about building a B Body for dirt track racing. See All - Best Selling. Oct 12, 2013 #2. there are a lot of knowledgeable guys there. 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. Forum Actions: Forum Statistics: Threads: 1; In situations where the exit portion of the track provides less traction and/or the corner is more flat, we might need to develop more rear traction upon acceleration. Bump Springs Tech. The car will turn better and we will have more bite off the corners. The pad is best used on IMCA style modifieds, the fronts of "Outlaw" style modifieds, drag racing . 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. Street Stock - (WISSOTA TYPE) - Medieval Chassis Even when clear rules exist, the track officials are often reluctant to enforce them. Posts: 72. A 1/2 inch height change from level can make significant handling changes. This force is resisted by the ball joints and control amrs. Flat Tracks: On an asphalt car, utilizing slightly stiffer rebound on the left side, while softening the rebound on the right side, will generally enhance the handling of the car. jp. 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. In order to perform the set up routine the car needs to be completely ready to race. toe in/ toe out turn left for street stock | STLRacing.com Now you have to compensate with spring change. A good handling car can make gobs of horsepower and hook it up. 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. With so many different combinations of possibilities it leaves us with literally thousands of possible chassis combinations to choose from. The upper IC is to the rear of the rearend and the IC for the lower links is well in front of the rearend. Then should I use brakes more? $1,700. also get to the scales whenever you can. Aero Package Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. 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. 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. 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. Balance is spoken of in all types of motorsports these days, even F1. Victory Circle - West Coast asphalt and dirt chassis design and I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. 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. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. 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. -3 . 03 0@ 34-.=- 2 ++(+'o $ (&%q qqqqqqqqqqqqqqqqqqqq ,&%q qqqqqqqqqqqqqqqqqqq qq (,%q qqqqqqqqqqqqqqqqqqqq ,,%q qqqqqqqqqqqqqqqqqqq qq Shocks 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. For me its very hard to be consistent and to adapt to the changing track states! 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. With all the negative BS that tends to permiate these boards these days, I thought maybe we could talk about something real and constructive. Tire Tools. Brake Pad Identification and Friction Surface Options Explained If we can lower the Metric RC to 13 inches, we would increase the moment arm length in the rear to 4.5 inches and that's a huge improvement in compliance. Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment. If you have any problem with the download, just email me, and I will email or Facebook you your file. 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. You refering to dirt track racing correct? A slight amount of rear steer to the left has been shown to help provide more traction at the rear and bite off the corners where it is needed. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). Welcome, Guest. taipei city stock pictures, royalty-free photos & images You can use your stock metric pitman arm and . Yes, I get inquiries about how to apply the BBSS setups to both of these types of cars. Tech Central - AFCO - Racing Page 1 of 1. Not that you can't get the same handling results with shims, etc., but it's a whole lot easier to adjust the handling of the car with weigh jackers. It might help to leave it unattached on ovals. Full of fuel, everything done, full of oil, lead bolted down. Mopar circle track question | For A Bodies Only Mopar Forum The car may or may not be neutral in handling, but the handling will not be consistent. 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. I dont really recommend it. Be careful not to overdue that. Asphalt circle track metric GM 4-link questions - Speed-Talk.com Steering Geometry The track was a 5/8 mile asphalt and was extremely fast. By Bob Bolles, Circle Track Magazine . I also was involved with beta testing for NASCAR Racing Simulation Games. Additionally, modern pennies are only 2.5% copper, so older pennies should be used instead for better results. LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. Looking forward to the tips for Dirt Oval racing! The number one reason a car will be tight and not want to turn is because the front end is not designed properly. These are the general rules unless you are trying to "tie down" a corner. Oversteer help - 1978-1988 General Motors A/G-Body Community Christjohn has been racing street stocks for 13 years and has amassed 74 feature wins and 4 track championships. 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 . The moment arm is 5.5 inches for the Late Model and is much easier to set up. The preferred way to adjust the cross weight is by moving weight around. by . Add Comment. 1. 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. ; this was with all four stock trailing arms. Often overlooked in the mainstream, dirt track racing is one of the most exciting forms of tire-scorching car racing action. Nick might be a better theory guy but I don't think that just adding a panhard bar will get you there. 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. 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. Metric rear tech - BDLM 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. I wondered if a 3 link could be made to work well without them. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. Cvracer5. Too low a ride height could cause the car to bottom out. in Exotic Race Cars on a Real RaceTrack, Copyright 2000-2023 My Metric Front end setup | The Dirt Forum - ProBoards Stretch Film Division. $137.99. 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. Wheels. Metric Four-Link Suspension Design - Circle Track Magazine - MotorTrend 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. If the car feels loose on corner entry, lower the left track bar. That's why I asked about weight jacks in the original post. Every year, Jack asks drivers for input regarding rules changes for the following year. "ULTIMATE" Racing Car Chassis Setup Guide and Tutorial. Modified Chassis - Howe Racing Enterprises, Inc Anderson , IN. Sliding the MC left and to the inside of the turn makes the suspension softer. Cars that don't turn well are very likely to have poor MC designs. sj_valley_dave wrote on 05/01/09 at 12:12pm: 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. Pure Stock Tech. I remember qualifying times in the 19.6 to 19.7 range. Metric Chassis Roll Centers - Lone Star Speedzone Forums Antidive and antisquat are mechanical influences that can help our transitional phases of entry and exit. But just wondering what the heck guys are doing to these metric street stocks to make em so fast. 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. It costs just as much money, if not more, to run poorly, so you might as well learn to run well. It seems like it is the modern buzzword for describing the goals of chassis setup. This chassis utilizes our very popular double slotted strut style front clip. What do I do if the car is loose or tight throughout the corner? On the metric chassis the roll centers, from what I understand are mainly influenced by ride height, because we can't change control arms ect. Metric Rearend Suspension Video from a Street Stock Check with the rules to see if it's even mentioned. Swap Option: Medieval will build the chassis using one of our sandblasted frames. Check your PM's. Adjustment Guide - Medieval Chassis. Save these setup files to C:\Documents\iRacing\setups\dirtstreetstock\. As far as I know, all of the iRacing asphalt cars are adjusted the same way. 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. That is the best description of the result of the dynamic force that influences each system. I always knew that chassis set up had to be based on some proven theory, but I could never find a book that could tell me what that theory was. So, we either lower the rear RC or soften the springs, especially the right rear spring, or preferably do both. It also doe, Fighting Fungal Diseases on Plants - Exploring the Use of Copper, Daconil & Copper Fungicides, The use of copper to fight plant diseases is an intriguing concept that has been around for some time. Alignment 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. 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. One way is to have a rear spring split, where the right rear (RR) spring has less spring rate than the LR spring. 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 can agree to use a LR instead RR. In 2005 Victory Circle entered the world of dirt racing. the force of air. They arent usually as good at spotting little modifications to every single part of the suspension. 122. Plan to win in a repeatable fashion. We also discuss how to identify the cause and the best treatments for each type of pest. 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. Your statement that the 3-link is what the metrics needed to level the playing field is the type of feedback that tech. Smaller gains can come later on after the more important aspects of setup are resolved. Bilstein has put together the ultimate Street Stock / Factory Stock Shock Package. 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. I think I'll make a proposal along these lines. I built Couchenours 99 car . We also might want to change the locations of the chassis and/or rearend mounts for the links. Free . Chassis Tuning 101 Murfdogg. How to Raise Cross Weight in iRacing Setup. There are two main ways to tighten or loosen the car. That is the essence of shock technology related to handling influences. 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. Can a 3-link be used effectively without weight jacks? So don't try it. So, it might be the best for asphalt racing to run as low as possible or as much as the rules allow to create a lower center of gravity. Motorcycle. The front moment center (MC) location plays a huge role in how the front end wants to work. Lowering the rear RC and softening the RR spring will help solve the problem. Online: $349.99. See all 6 photos. Race Car Street Stock Set Up help manual book. You need to keep the ride heights as close as possible to where they were before you started. Street Stock Setup Manual Each suspension system desires to do its own thing when lateral forces are introduced from the car going through the turns. But there is still some changes to be made from track to track. Chassis. The engine should always be aligned perpendicular to the rearend and/or parallel to the centerline of the car. PDF Harris Auto Racing - Race Cars with Attitude Adjust all four spring perch offsets to change the cross weight. For the novice sim racer, all these setup options can seem overwhelming & confusing without the knowledge of what all these adjustments are or do.By understanding the basics of what each component is & how it directly effects the car, you'll quickly discover what direction you should head when trying to adjust for that looseness exiting the corner under acceleration. Whats the dominant front clip, and what are they doing with these metric rear setups? After you get the cross weight where you want it, adjust the ride heights. On a metric four-link car, the four control arms determine the rear moment center height too. I guess the leaf cars could be allowed adjustable shackles in the rear to even that one out, sort-of. Street Stocks Dur-A-Flex Racing. PDF Metric 4 Link Setup For Dirt - Annualreport.psg.fr Speed and how it is made - Bsbgofast.com We have been softening those setups over the years, but never intended to go to coil bind or bump rubbers. I was thinking this setup might help because their are not alot of different way to adjust these cars other then stagger, offset, and maybe shocks. Most good cars are built on wheel scales. I would trail brake or lift earlier. Prices listed are with a frame swap option. Over the years, most of the things that I have learned about racing, I've learned the hard way. In this article, we explore the possibility of russet mites, thrips, spider mites, and other causes of leaf damage. Conversely, if the car feels tight throughout the corner, raise both track bars. 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. If the car feels loose on corner exit, lower the right track bar. Taipei City Stock Photos, Pictures & Royalty-Free Images - iStock camaro street stock setup A set up plan will help you to build a race winning effort. Caster is best described as a vertical line that runs through the 2 pivot points in your car or trucks suspension. To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. 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. MSRP: $515.99. The car madracing 19 has for sale has all of these things done to it. We run on street tires and can not move suspension mounts (viasably ) I won the championship last year with a car . Most of the ideas in this book are perfectly legal for any rule book. We can lower the rear RC by making changes to the mounting points. The Metric four-link suspension design is a bit different than most other rear suspensions. Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. 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. 5. 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 I once drove a metric on both dirt and asphalt. 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. I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. Poorboy, I think you're exactly right. The right-side tire contact patches will also need to be inline with the right front tire pointed straight ahead. I would get the metric arms from Speedway P-N 910-31134-RH (LH) they are 8.0 and 8.5 long. Free Download Chapter listings from Street Stock Setup Maual 2.1.pdf (PDF). Setup Tips for Asphalt Oval Racing The second most important item in the setup arsenal is the rear geometry layout in your car. SmartPad BP-30 is a race only pad for heavy braking on dirt, and intermediate needs on asphalt. With allot of experimenting I found a way to really get the car to hook up. Polyethylene Film / PE Sheet Unbalanced setups exhibit easily observed characteristics, such as unusually high degree of wear and temperature on one tire versus the other tires. If the LR tire is too cool, then the RR spring is too stiff. Adjust drag link accordingly, *unless something is bent, spindles, drag link, idler arms, etc.