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. 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. Adjust all four spring perch offsets to change the cross weight. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) Numerous car builders have come to realize the truth in the above statements. Conversely, if the car feels tight throughout the corner, raise both track bars. They should also be able to run any panhard bar. Chassis Tuning 101 Murfdogg. . On a metric four-link car, the four control arms determine the rear moment center height too. Forum Actions: Forum Statistics: Threads: 4; Posts: 10; Last Post: I-44 Speedway-Jeg's Master of. As the car is lowered, the rear RC will generally move down. 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). Maybe if Billy would be more specific about how he made his stock setup work we could learn even more. 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. *-*. FOR 78-88 GM METRIC CARS. In the end there is a ton of stuff out there, everyone seems to have something that works. Fox80. 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. Order Wilwood part number 150-9442K. Love it when people explain why somethings done rather than just saying this is how its done., Thank you Jeff! Probably to the guys that are beating you! Designed and built with one thing in mind, WIN RACES. METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. Grill tape is nothing more than duct tape. 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. Understanding the relationship between the rear roll center on these cars and the setup will help us find a more balanced setup. If the car feels loose on corner exit, lower the right track bar. Also pinion angle with stock bushings. Hey I am looking for some guidance setting up my 4 link GM metric rear end. .220 to .235 would be fine without a quickner. The number one reason a car will be tight and not want to turn is because the front end is not designed properly. Adjust the cross weight for more extreme conditions or different circumstances. Dirt Race Life is explaining how to draw out the front end on a race car and determine where the roll center is. Circle Track Setup: The Case for Caster. Go here but read before you post..lol. Smaller gains can come later on after the more important aspects of setup are resolved. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). 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. If he was at the track and saw the car run he would know that it worked ( by the way it also worked at Eriez ). 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. Anything helps when u trying to figure out a starting point.thanks for the input i will try some of this and see how it works i have raced some before mostly mini stocks. Also has a anti roll bar added to it. Post This guide is very similar to the NASCAR Racing setup guide. See all 6 photos. 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. Always try to start with the track bars first. This guide was awesome! 10702FMC FRAME & CAGE - FAB CHEVELLE MOD. Told me he might be going to Lebanon to run now. The RC height will move with vertical movement of the rear of the car. LIT-719 80292 C7 Corvette Radiator. To download a copy of the E-book, simplyclick on the link below. Get it right or don't get it at all. First of all, the design is intended to solve several problems. I set the car up a particular way last year and won a heat race with my street stock in the late model class at HRP. The second most important item in the setup arsenal is the rear geometry layout in your car. Keep It Fast and Cheap. 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. When you enter the corner you are going to slow down. Strictly asphalt street stocks and parts. Has boxed lowers, adjustable uppers , stock springs and shock. 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. This is very "old school" but when applied with a balanced setup, very effective. 358101 FAB . Anderson , IN. 6. I think I'll make a proposal along these lines. 5. 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. Even when clear rules exist, the track officials are often reluctant to enforce them. 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. This is our 1988 Monte Carlo Stock Appearing Body. Conclusion 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. I would trail brake or lift earlier. 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. Street Stock. Last couple of years I ran the car we just used tubular ones with rod ends because it was legal and easier. As for stock arms they worked just fine ,and didn't cost anything. There are two main ways to tighten or loosen the car. Sometimes the handling of the car might not be to your liking. 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. JP is that the car you wadded up and broke your leg? Posted 5 weeks ago. My truck has weight jacks and a stock 4 link. A Setup To-Do List to Get You Started . For the lower links, lowering the chassis mounts at the front of the link lowers the rear RC. That energy has to go somewhere, (1st & 2nd law of thermodynamics) so it can either go into tires causing them to heat up lose grip and wear faster, or you can try to take up some of that heat up into the brakes where it will be dissipated on exit and down the straight. 1 Min Read. by . The dynamics of the moment center and the effects of camber change have been explained before. Wheels. Dial In Your Metric. We were allowed weight jacks and after market uppers in front also. Sort by. Unbalanced setups exhibit easily observed characteristics, such as unusually high degree of wear and temperature on one tire versus the other tires. Street Stock; Other; Best Selling. 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. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. As the front brakes are applied, the caliper grabs the rotor and the motion of the wheel/rotor tries to rotate the spindle. Officials are trained to find sneaky parts. competition. AFCO C1 METRIC PADS. If you want to know how to adjust iRacing Sprint Car cross weight, go here. 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. 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. We run on street tires and can not move suspension mounts (viasably ) I won the championship last year with a car . How to Raise Cross Weight in iRacing Setup. Make small adjustments, about one half of one percent. This 7 shock kit includes shocks for every track condition with tips to help fine tune your racecar. ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. I think with the panard bar and 3rd link the metric cars. Remember, we're still using stock components, we're just making small relocations of those points. 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. 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. The moment center must be located correctly for your type of racing and the cambers must be set, again toward your setup style and track conditions. And, some aspects of chassis setup build on other aspects. JEFFREYS Fabrication is coming soon!!! What Are Russet Mites? 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. I can agree to use a LR instead RR. 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. The cross weight adjustments should work on all dirt cars except the Sprint Cars. 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. Remember that drag is an important aspect of aero design. 2,224. by RonL Fri Jul 17, 2015 12:02 am, Powered by phpBB Forum Software phpBB Limited, Shocks, Springs, Brakes, Frame, Body Work, etc. Car has stock location rear links and stock links , different bushings . Thats with a 305 a ton less HP. You refering to dirt track racing correct? So, in most cases, we need to run a softer spring in the right rear. RacelineCentral.com All Rights Reserved, NASCAR 2K3 Racing Season Garage 101 Guide Download, Creative Commons Attribution-Noncommercial-No Derivative Works 2.5. The steering system in your car must be evaluated and any negative characteristics must be eliminated. Cra bomber, turbo ,etc. Negative aspects might include excessive bumpsteer (more than 0.030 bump in or out in for each inch of travel is considered negative by most designers), excessive Ackermann (more than a 1/4 degree added steer in either front wheel in 10 degrees of steering input is considered excessive), and incorrect steering quickness. 358091 FAB IMPALA, NO UPPER MOUNTS. The influence of the location of the front MC can be compared to a sliding scale. I have always believed in priorities because you can make gains faster when you solve the high priorities problems first. I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. Its important to make even adjustments, meaning you should make the same number of clicks on each spring perch. It is this sliding scale situation that determines the stiffness of your front end. 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. A good handling car can make gobs of horsepower and hook it up. PREMIER. 5. The overall general rule is that the angles between the driveshaft and both the pinion shaft and the transmission output shaft need to be equal and in opposite directions. If you could slide the MC to the right, or outside of the turn for you road racers, the front end will get stiffer. The pad is best used on IMCA style modifieds, the fronts of "Outlaw" style modifieds, drag racing . Every year, Jack asks drivers for input regarding rules changes for the following year. By 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/. Metrics can be competitive IF they are permitted to address their four-point rear suspension problems. Car went anywhere he wanted and was quick time, won the trophy dash, heat . These components include the radiator, oil/transmission coolers, & brakes. My name is Rodney Arndt, I have an associates degree in automotive technology. I never got to the experimenting stage on asphalt. Conclusion The Metric four-link rear suspension is here to stay for a while. You can use your stock metric pitman arm and . By Bob Bolles, Circle Track Magazine . Fast And Furious. LOL. The driveshaft alignment is critical from the standpoint of mechanical efficiency. Built to the same high standards of safety, quality and craftsmanship that has made Port City Racecars an industry leader. Administrator. I see the times at CCMS are identical, THR the truck .5 sec quicker. Good luck. Street Stock Dirt Oval Racing - All the dirt, clay and pavement-racing excitement in a 1:10 scale RTR. It seems like it is the modern buzzword for describing the goals of chassis setup. But the most useful rear steer will only occur on acceleration and not at mid-turn. The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. 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. I would suggest going to www,4m.net to the tech board. How do I tighten or loosen the car on entry? You can try bigger adjustments if you cant tell much difference in the handling after you make smaller adjustments. If the car feels tight on corner exit, raise the right track bar. Thank you for pointing out the obvious to me . Did they allow weight jacks? RAceman. Everything you need to know to build, set-up and race a Street Stock competitively. Dirt Modified IMCA, Local Tracks. 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. The moment arm is 5.5 inches for the Late Model and is much easier to set up. Taipei Taxis, City Traffic Taiwan Street scene in the capital city of Taiwan at dusk with motion blurred taxis and traffic in the streets. 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. If the car feels tight on corner entry, raise the left track bar. . Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. 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. Quick view. My Metric front end setup. 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. Join OSR Voice/Text Chat. This configuration is common in General Motors cars built in and around . 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. I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. I talk to lots of racers representing every form of circle track racing in every region of the country and beyond. If those desired angles are different, then we term the setup unbalanced. Both of these are necessary components that will be needed to win championships. 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. Each end has its own moment arm length and resistance to roll as well as other factors. Drag the brake lightly as you enter the corner. Basically - after you finish the set up routine, the car goes in the hauler. It may not display this or other websites correctly. The settings, including the moment center location, really do dictate how all of the other parts and pieces of setup will work. Bite Off The Corners Car went anywhere he wanted and was quick time, won the trophy dash, heat race and main. 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. 3. 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. I guess the leaf cars could be allowed adjustable shackles in the rear to even that one out, sort-of. Reply #9 - 05/01/09 at 8:00pm. Can a 3-link be used effectively without weight jacks? With so many different combinations of possibilities it leaves us with literally thousands of possible chassis combinations to choose from. See auction date, current bid, equipment specs, and seller information for each lot. After payment you will be directed to a download page. Has gone 1.29 60 ft on spray, has 28 10.5 et street tires on it also. Rear Geometry Try one or two click on each spring perch shown above to raise the cross weight. Additionally, modern pennies are only 2.5% copper, so older pennies should be used instead for better results. Posted August 22, 2005. Download the Jet Mod Scale & Setup Sheet Here! 4. However, they should be required to run he two stock lower rear trailing arms in their stock locations. 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. Prices listed are with a frame swap option. Now you have to compensate with spring change. Page 1 of 1. Dirt Late Model Racing News and Driver info across the Mid Atlantic. 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. Caster is best described as a vertical line that runs through the 2 pivot points in your car or trucks suspension. These pads are use on dirt for medium and heavy braking, and asphalt for sportsman and Hobby Stock cars.
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