how to adjust iRacing Sprint Car cross weight, go here. You refering to dirt track racing correct? It's on a car that I'm helping with. "One bad person can ruin it for everyone and that is just disrespectful", The
We had no idea how popular and successful this line of chassis would be. Even when clear rules exist, the track officials are often reluctant to enforce them. RacelineCentral.com All Rights Reserved, NASCAR 2K3 Racing Season Garage 101 Guide Download, Creative Commons Attribution-Noncommercial-No Derivative Works 2.5. Metric Four-Link Suspension Design - Circle Track Magazine - MotorTrend Might go25- 50 pds more on each side and the left side should be more than the right side. 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. Over the years, most of the things that I have learned about racing, I've learned the hard way. My Metric Front end setup | The Dirt Forum - ProBoards Wheels. The use of softer front springs, larger sway bars, and big spring split in the rear has swept across the country for more than five years now with mixed results. Sliding the MC left and to the inside of the turn makes the suspension softer. Too low a ride height could cause the car to bottom out. 6. As for stock arms they worked just fine ,and didn't cost anything. Once you've made the entry to the corner balanced, check to see if the adjuster is centered. It is not advantageous to have the rearend steer to the right at any time on asphalt. Administrator. 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. Biggest change is getting ride height . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. I think everyone agrees that the old leaf spring cars (Camaros and Novas) are becoming harder and harder to find. in Exotic Race Cars on a Real RaceTrack, Copyright 2000-2023
BBC Truck Header 2 1/4in X 4in Fender Well Schoenfeld 2348 . This variety grows best when grown alone and can reach up to 12 feet tall. 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. Anderson , IN. 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. by RonL Fri Jan 02, 2015 12:36 am, Post If you can use bucket and run a taller sprign thats a good way to go. document.write("" + contact + "" + "")
This guide was awesome! 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. -3 . 03 0@ 34-.=- 2 ++(+'o $ (&%q qqqqqqqqqqqqqqqqqqqq ,&%q qqqqqqqqqqqqqqqqqqq qq (,%q qqqqqqqqqqqqqqqqqqqq ,,%q qqqqqqqqqqqqqqqqqqq qq Street stock, pure stock, sportsman, factory stock. The Antis You must log in or register to reply here. The metric cars can use different size spring spacers as well, so the playing field is already level in that respect. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. 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. //-->. Dirt Late Model Racing News and Driver info across the Mid Atlantic. Understanding the relationship between the rear roll center on these cars and the setup will help us find a more balanced setup. PDF Metric 4 Link Setup For Dirt - Annualreport.psg.fr camaro street stock setup camaro street stock setup Last couple of years I ran the car we just used tubular ones with rod ends because it was legal and easier. Camber was -2 deg on RH and +2 deg on LH at ride height. Not sure if there is a standard for metric cars but I havent found any specs on it. 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. The images used are taken from the iRacing Super Late Model setup screen. 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. I remember qualifying times in the 19.6 to 19.7 range. Eliminate most of your bumpsteer and Ackermann and install the correct steering ratio for your track that would suite the driver. But just wondering what the heck guys are doing to these metric street stocks to make em so fast. This configuration is common in General Motors cars built in and around . With allot of experimenting I found a way to really get the car to hook up. Polyethylene Film / PE Sheet RAceman. Roll Center(movement center) circle track 1981 Camaro help Would a 11 in be better or a 13 in spring in back be better. My truck has weight jacks and a stock 4 link. That's one thing I've really never understood about some street stock classes that don't allow weight jacks. Go here but read before you post..lol. If the LR tire is too cool, then the RR spring is too stiff. LIT-718 80291 1997 - 2004 Mustang Radiator. I just think frames are harder to come by, so are stock blocks, so the old stock and hobby classes are a dying breed. The steering system in your car must be evaluated and any negative characteristics must be eliminated. 35809 FABRICATED IMPALA FRAME. Aug 24th 2005. I never got to the experimenting stage on asphalt. Saturday Night Racer - street stock set up - LATEMODELRACER.COM What do I do if the car is loose or tight throughout the corner? Welcome to STLRacing.com, home of St. Louis Motor Racing News. "ULTIMATE" Racing Car Chassis Setup Guide and Tutorial. Ive raise the center section of the chassis where the the upper mounts attach by 3". If the car feels loose on corner entry, lower the left track bar. 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. This guide is very similar to the NASCAR Racing setup guide. I built Couchenours 99 car . Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). Some people add preload to the sway bar to make cross weight adjustments. Asphalt circle track metric GM 4-link questions - Speed-Talk.com Cvracer5. Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . As the front brakes are applied, the caliper grabs the rotor and the motion of the wheel/rotor tries to rotate the spindle. 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. Adjust all four spring perch offsets to change the cross weight. Victory Circle - West Coast asphalt and dirt chassis design and 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. Fox80. Reply #9 - 05/01/09 at 8:00pm. 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. So, in most cases, we need to run a softer spring in the right rear. Conclusion The Metric four-link rear suspension is here to stay for a while. The driveshaft alignment is critical from the standpoint of mechanical efficiency. 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 . Car went anywhere he wanted and was quick time, won the trophy dash, heat . Lift earlier, and/or drag the brake just a little bit on entry. The Camaro's we were running against could have weight jacks and tubular uppers as well so it was pretty even. JP is that the car you wadded up and broke your leg? Maybe if Billy would be more specific about how he made his stock setup work we could learn even more. The components that locate the rear end must be evaluated and set correctly. We run on a semi flat 1/2 mile asphalt track. 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. The settings, including the moment center location, really do dictate how all of the other parts and pieces of setup will work. Car has stock location rear links and stock links , different bushings . The RC height will move with vertical movement of the rear of the car. We ran the stock lowers but boxed them and put in better bushings if I recall correctly. ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing. Upgraded Brakes for GM Metric Chassis Circle Track Race Cars Metric front end setup | Wissota Tech Set-ups, advice - ProBoards 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. But there is still some changes to be made from track to track. I once drove a metric on both dirt and asphalt. METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. Street Stock Setups| RYCO Performance / iRacing Setup Shop 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. These pads are use on dirt for medium and heavy braking, and asphalt for sportsman and Hobby Stock cars. I wondered if a 3 link could be made to work well without them. 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. Always try to start with the track bars first. 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. This will help keep your ride heights in the ballpark. Those cars are coming around becoming competitive. $137.99. Thanks a lot for making it. The preferred way to adjust the cross weight is by moving weight around. CRA street stock. Thats with a 305 a ton less HP. Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! Smaller gains can come later on after the more important aspects of setup are resolved. This will be a brief tutorial that should help iRacers adjust their setups to better suit their driving styles. Caster is best described as a vertical line that runs through the 2 pivot points in your car or trucks suspension. Adjust the cross weight for more extreme conditions or different circumstances. taipei city stock pictures, royalty-free photos & images 7. JEFFREYS Fabrication is coming soon!!! I measured ours at close to 20". also get to the scales whenever you can. Balance is spoken of in all types of motorsports these days, even F1. The front moment center (MC) location plays a huge role in how the front end wants to work. The engine should always be aligned perpendicular to the rearend and/or parallel to the centerline of the car. 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. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). We were allowed weight jacks and after market uppers in front also. Home. Metric Rearend Suspension Video from a Street Stock Here is an explanation of balance related to the dynamics of the race car. Setup Balance 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. Bilstein Stock Car Shock Package-Metric Street Stock - Circle Track Supply 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. SR10 Dirt Oval RTR | Associated Electrics However, that is only one of the three basic geometric ways to move a tire on a race vehicle. SUCH AS SPRINGS, SHOCKS, SWAYBARS ETC. My name is Rodney Arndt, I have an associates degree in automotive technology. How to Open the Setups. would be able to run on asphalt with the leaf spring cars. Greetings guys, Im new to the site. For me its very hard to be consistent and to adapt to the changing track states! The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. I drive both a metric (my truck) and a leaf spring car (ss). Dec 24, 2005 at 5:33am. Adjustment Guide - Medieval Chassis Told me he might be going to Lebanon to run now. 1. A set up plan will help you to build a race winning effort. 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. Race car suspension Class | Page 47 | Physics Forums Send your request to bob.bolles@sorc.com. state doesn't have. The car may or may not be neutral in handling, but the handling will not be consistent. The setup we choose needs to be arranged so that the dynamics are balanced between the front and the rear suspensions. so I ran a .185 valving. So don't try it. Free . Swap Option: Medieval will build the chassis using one of our sandblasted frames. Add to Cart. Online: $349.99. Turn the wheels to the left all the way, make a mark with the steering wheel, now count the turns it takes to go to full lock the opposite direction. It just won't work. 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. Pavement Modifieds. Did they allow weight jacks? Am I correct that you would reattach the sway bar after making the perch adjustments? That was it. There are some different lower a-arms and front suspension things to make them even better. Truck99August 22, 2005 in Grease Monkey Hangout.