Conclusion 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. Good luck. LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. I appreciate the lead. . The artistry comes in when you actually do it. 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. Maybe not on little tires either. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. 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. They should also be able to run any panhard bar. Conclusion The Metric four-link rear suspension is here to stay for a while. The car madracing 19 has for sale has all of these things done to it. Street Stock; Other; Best Selling. We were allowed weight jacks and after market uppers in front also. 358101 FAB . 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. Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. A tight condition is the number one complaint from drivers. There are some different lower a-arms and front suspension things to make them even better. There is one IC for the upper links and one for the lower links. Because these cars are being used in great numbers in the Stock classes of racing here in the U.S., we need to have a better understanding of the design and how it relates to the setups. See auction date, current bid, equipment specs, and seller information for each lot. If the car feels as if it wants to break loose under throttle in the center or on corner exit, or drive off the right rear wheel (wheel spin), increase the cross weight. The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. Adding neoprene bushings to all of the connection points will unnecessarily restrict movement and cause the chassis to be stiff in roll. I would suggest going to www,4m.net to the tech board. We had LF 1000, RF1300, LR 200, RR200. SmartPad BP-30 is a race only pad for heavy braking on dirt, and intermediate needs on asphalt. Create New Wish List . Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. The preferred way to adjust the cross weight is by moving weight around. As these pads get hot, they offer more friction, and still work well at over 1000 degrees. Poorboy, I think you're exactly right. Racing Aspirations refers to this point as the roll center (RC), but it can also referred to as the moment center. 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. ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. 35810 FABRICATED CHEVELLE FRAME. Dec 24, 2005 at 5:33am. A level panhard bar ( same mounting height on both sides) means force is vectored laterally to the tires. . However, they should be required to run he two stock lower rear trailing arms in their stock locations. If the car feels loose throughout the corner, lower both track bars evenly. also get to the scales whenever you can. Your email address will not be published. Stock Car Racing, NASCAR, Late Model, Sooner Speedway, Frost Racing Team, Race Links, Chevy Monte Carlo . Might go25- 50 pds more on each side and the left side should be more than the right side. I just think frames are harder to come by, so are stock blocks, so the old stock and hobby classes are a dying breed. Ive raise the center section of the chassis where the the upper mounts attach by 3". Its a whole lot more driver and a whole lot less setup on dirt. Full of fuel, everything done, full of oil, lead bolted down. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). Remember, we're still using stock components, we're just making small relocations of those points. Afco Racing Products. 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. 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. The car will turn better and we will have more bite off the corners. 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. 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. 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. Load the setup in the iRacing simulation under Garage - My Setups. 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. Its hard to say without more information. The rear roll center is certainly part of the problem. Brake Bias Whats the dominant front clip, and what are they doing with these metric rear setups? jp. Strictly asphalt street stocks and parts. Looking forward to the tips for Dirt Oval racing! Roll Center or Moment Center. In 2005 Victory Circle entered the world of dirt racing. Forum Actions: Forum Statistics: Threads: 1; I can only speak for THR, but we are not allowed to use adjustable shackles, or I should say we are not allowed to have shackles of different lengths. This topic is now archived and is closed to further replies. Truck99August 22, 2005 in Grease Monkey Hangout. MSRP: $515.99. In the last article, I talked about the uses of toe and how it affects both drivability and front-end dynamics. 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. Shocks The engine should always be aligned perpendicular to the rearend and/or parallel to the centerline of the car. So, we must make due and set up these cars the best we can. What do I do if the car is loose or tight throughout the corner? Biggest change is getting ride height . The lateral location of the third link can affect the distribution of load among the two rear tires that results from acceleration and antisquat. Thank you, that forum is a wealth of information. 70030. So, there is a limit to how much you can get away with and still have a decent corner entry. Track Tools. Letting the metric cars run Camaro spindles would be a step in the right direction. 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 also was involved with beta testing for NASCAR Racing Simulation Games. Unfortunately, most rule books that I have dealt with are very vague. If the car feels tight on corner exit, raise the right track bar. The bottom line is that at mid-turn, each end will want to roll to its own degree of angle. To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. LIT-721 80293NDP 2009-2015 Cadillac CTS-V HE. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . Balance is spoken of in all types of motorsports these days, even F1. Stretch Film Division. 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 once drove a metric on both dirt and asphalt. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. X-Y-G METRIC STREET STOCK / SPORTSMAN HEADQUARTERs 704-784-5353. 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. *-*. Ive read alot of stuff, some of it usefull some of it crazy. As the front brakes are applied, the caliper grabs the rotor and the motion of the wheel/rotor tries to rotate the spindle. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. Reply #9 - 05/01/09 at 8:00pm. Always try to start with the track bars first. We make it with either steel panels, or aluminium panels. 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. Sep 1, 2009. LIT-A950700006 80249N Ford F-150 LightningHarley HE. Adjust the cross weight for more extreme conditions or different circumstances. In order to slow you must lose (kinetic) energy. The settings, including the moment center location, really do dictate how all of the other parts and pieces of setup will work. The CCMS rules allow 3rd link and panhard bar. The very last thing you need to worry about is your aero package. The metrics at THR are NOT competitive compared to the leaf cars. Tire Tools. The Camaro's we were running against could have weight jacks and tubular uppers as well so it was pretty even. Street Stock Setups - Custom iRacing Setups and Paints for dirt oval and asphalt oval cars. One way is to have a rear spring split, where the right rear (RR) spring has less spring rate than the LR spring. Home. From NE Ohio to North Central Mississippi, everyone has their own ideas and preferences for what they will plant this year. Also pinion angle with stock bushings. 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. Stock cars using the metric-style four-link rear suspension usually need to do this just to achieve a balanced setup with the high rear moment centers in those cars. That's just a thought, i don't know that for sure. On a metric four-link car, the four control arms determine the rear moment center height too. Free Download Chapter listings from Street Stock Setup Maual 2.1.pdf (PDF). Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment. However, that is only one of the three basic geometric ways to move a tire on a race vehicle. Long exposure, Nikon D810. In the end there is a ton of stuff out there, everyone seems to have something that works. The idea is to steer the car using different height holes for the rear control arm mounts. I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. Add Comment. Sometimes weather differences will require changes to either tighten or loosen the setup. 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. This will be a brief tutorial that should help iRacers adjust their setups to better suit their driving styles. It might help to leave it unattached on ovals. There are a lot of things you can do to improve handling. Most of the ideas in this book are perfectly legal for any rule book. There's a happy medium between running just the right soft right rear and going too soft. ; C1 - Designed for medium to low brake temperatures and provides good cold bite while being rotor friendly. 321. So don't try it. This configuration is common in General Motors cars built in and around . This setup guide also has new information based on the changes that go along with the new version of the sim. This is what I did to my Metric that won the 2012 UMP National Championship. 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. taipei city stock pictures, royalty-free photos & images To sort of act as a pull bar? 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. the force of air. Most of the time when some ask the question they are at that point and just don't know it. They arent usually as good at spotting little modifications to every single part of the suspension. 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. Here are some recommendations. The track was a 5/8 mile asphalt and was extremely fast. Always try to start with the track bars first. SAS I seem to remember being faster than the sportsmans. Thanks a lot for making it. This variety grows best when grown alone and can reach up to 12 feet tall. var contact = "Contact Us" One guy said it come up off the ground two feet. Not sure if there is a standard for metric cars but I havent found any specs on it. LOL. How to Lower the Cross Weight in an iRacing Setup. Off-centered adjusters can be very inconsistent. Probably to the guys that are beating you! 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. I'm thinking that a panhard bar would eliminate side to side motion but little else. It may not display this or other websites correctly. And, it must be economically applied. We got away from running thatmuch cross as the car was pushy. In order to perform the set up routine the car needs to be completely ready to race. would be able to run on asphalt with the leaf spring cars. by . Told me he might be going to Lebanon to run now. I don't get too many reports of continual, repeated wins and successes. And, of course, Terry chose to park it. Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. But the most useful rear steer will only occur on acceleration and not at mid-turn. I want to try a reverse spring set up on a hobby stock car that am helping a friends with its a 3400 lbs metric car all stock. Not sure how much traffic this post will get here. Smaller gains can come later on after the more important aspects of setup are resolved. Circle Track Wheels. ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing. That troubles me. I remember qualifying times in the 19.6 to 19.7 range. Quick view. Keep It Fast and Cheap. competition. 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. 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. They should be matched up within a couple of degrees of average temperature across the tread. I have little experience on dirt but can definetely notice this! Re: street stock set up. You can use your stock metric pitman arm and . 1 being the most important. I built Couchenours 99 car . 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. Wheels. Some people add preload to the sway bar to make cross weight adjustments. var email = "RacelineCentral" For a better experience, please enable JavaScript in your browser before proceeding. Am I correct that you would reattach the sway bar after making the perch adjustments? Bush i agree with your Eriez/ 7 comment. Get it right or don't get it at all. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). Your statement that the 3-link is what the metrics needed to level the playing field is the type of feedback that tech. This is our 1988 Monte Carlo Stock Appearing Body. The fruits of this plant are large and can weigh over one pound. 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. Only at teamsimkins.com. Here is an explanation of balance related to the dynamics of the race car. var emailHost = "hotmail.com" What Are Russet Mites? rolling chassis. You can then make fine adjustments with the sway bar preload if desired. The car would have a complete roll cage with stock type suspension. 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. As a general rule, most asphalt stock cars run around 3.5 to 4.0 front roll center height, although many run lower roll centers than they would like simply because the stock location is very low . Online: $349.99. You are using an out of date browser. My Metric front end setup. As for stock arms they worked just fine ,and didn't cost anything. set the tone for how the parts and setup will work. state doesn't have. "ULTIMATE" Racing Car Chassis Setup Guide and Tutorial. Divide that in half for the center of the wheel. Free . Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . Thats the theory and the science anyway. If you want to know how to adjust iRacing Sprint Car cross weight, go here. Camber was -2 deg on RH and +2 deg on LH at ride height. Chassis Tuning 101 Murfdogg. The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. Car went anywhere he wanted and was quick time, won the trophy dash, heat race and main. So, we either lower the rear RC or soften the springs, especially the right rear spring, or preferably do both. Yea how many years ago a1? Each setup has a life cycle or a time frame in which it will work before we run into a stopping point with it. In Stock. The driveshaft alignment is critical from the standpoint of mechanical efficiency. Note the new cross weight and the ride heights. Greetings guys, Im new to the site. 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. Brian Wise. 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. This chassis utilizes our very popular double slotted strut style front clip. Dial In Your Metric. The less fuel in the tank the tighter the chassis will become. Designed and built with one thing in mind, WIN RACES. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. 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 Alignment With all the negative BS that tends to permiate these boards these days, I thought maybe we could talk about something real and constructive. 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. in Exotic Race Cars on a Real RaceTrack, Copyright 2000-2023 . Bite Off The Corners 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. See all 6 photos. Samuel232. More has to be done to help the rear roll to match the front. Hardcore Package - $5,700 (2023 Pricing) *Some components included in the package are not shown in picture below*. Most good cars are built on wheel scales. 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. It also seems hard to argue that the stock 4-link/metric cars have a hard time being competive in our SS/Sportsman classes where a stock suspension is mandated. You must log in or register to reply here. Wonder how fast it would be if I changed the locations. 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. did desi arnaz jr have a stroke; moose tracks vs cow tracks ice cream document.write("" + "") We had no idea how popular and successful this line of chassis would be. Its not necessary unless your own a road course. As far as I know, all of the iRacing asphalt cars are adjusted the same way. Is this why Im wearing out the right front? I think everyone agrees that the old leaf spring cars (Camaros and Novas) are becoming harder and harder to find. 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. When the track is cooler, you may want to loosen the car some. 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. Fast And Furious. 35809 FABRICATED IMPALA FRAME. Car has stock location rear links and stock links , different bushings . 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. About Us. If this component on your car is not right, then the whole car will suffer, no matter what else you do. A spring split of 250-lb/in spring in the left rear and 200-lb/in spring in the right rear is common. The front geometry on a metric car isnt as good as a Camaro though. Wheel Covers. This is because of the construction using angled, from a top view, arms that converge to points called instant centers. I'll start out with what seems like the obvious to me - the rear suspension. Once you've made the entry to the corner balanced, check to see if the adjuster is centered. ! Thank you for pointing out the obvious to me . by RonL Fri Jul 17, 2015 12:02 am, Powered by phpBB Forum Software phpBB Limited, Shocks, Springs, Brakes, Frame, Body Work, etc. Before you start your season, you need to create your Some of the names, most notably in the asphalt Street Stock springs, are different, but the process is the same. Raising the rear of the lower links also lowers the rear RC, although in reality this is very hard to do because the links are already mounted close to the rearend axle housing. Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. 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. I would get the metric arms from Speedway P-N 910-31134-RH (LH) they are 8.0 and 8.5 long. //-->. 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. 3. Add to Cart. I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. As each season comes along, our knowledge of what we need and desire grows. Your close on the springs if the car is 3200. The Metric four-link suspension design is a bit different than most other rear suspensions. Use the "new" 7 inch arm on the RH and the 8.5 on the LH. I can't tell you how many times I have refined the MC location in a car and had it totally change the way the car turned, for the better. Eliminate most of your bumpsteer and Ackermann and install the correct steering ratio for your track that would suite the driver. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) Love it when people explain why somethings done rather than just saying this is how its done., Thank you Jeff! If you have any problem with the download, just email me, and I will email or Facebook you your file. 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. Then should I use brakes more? We are at a crossroads at this point in time with setup technology in asphalt racing. Dwarf Mr Snow, Fred's Tie Dye, Saucy Mary, Sweet Scarlet, Kangaroo Paw Green, Idaho Gem and Banana Toes are just a few of the varieties one gardener is growing in a 4x8 bed of "bulletproof" tomatoes. Everything you need to know to build, set-up and race a Street Stock competitively. Did they allow weight jacks? Check with the rules to see if it's even mentioned. RacelineCentral.com All Rights Reserved, NASCAR 2K3 Racing Season Garage 101 Guide Download, Creative Commons Attribution-Noncommercial-No Derivative Works 2.5. The metric cars can use different size spring spacers as well, so the playing field is already level in that respect. Vintage/Classic/Historical Engine Tech, 3V Performance Engine & Valve train Development, Race Cars & Parts - For Sale or Wanted, Asphalt circle track metric GM 4-link questions, Re: Asphalt circle track metric GM 4-link questions, https://www.physicsforums.com/threads/r ss.326355/. Play the all new "DANNY SIMKINS - 11 STRAIGHT - trivia game." The influence of the location of the front MC can be compared to a sliding scale. I haven't plotted it all out but four links, none of which are at the axis of rotation, would tend to fight each other as body rolls. In short, you'll get more rear grip by lowering the rear RC. 1. I'm thinking about building a B Body for dirt track racing. I see the times at CCMS are identical, THR the truck .5 sec quicker. I would say 99's priorities worked just fine. On a metric four-link car, the four control arms determine the rear moment center height too. I think with the panard bar and 3rd link the metric cars. Circle Track Setup: The Case for Caster.
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