If you can use bucket and run a taller sprign thats a good way to go. I thought these were street STOCKS? Yeah! Dirt Late Model Racing News and Driver info across the Mid Atlantic. Moving the pull-bar or just the third link to the left increases the loading on the LR tire during acceleration. For a better experience, please enable JavaScript in your browser before proceeding. Customer is to bring a clean non-sandblasted frame when picking up the chassis. Good luck and keep the rubber side down!!! 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. //-->. Caster is best described as a vertical line that runs through the 2 pivot points in your car or trucks suspension. Did you see anything interesting? This guide is very similar to the NASCAR Racing setup guide. how to adjust iRacing Sprint Car cross weight, go here. But the most useful rear steer will only occur on acceleration and not at mid-turn. In the last article, I talked about the uses of toe and how it affects both drivability and front-end dynamics. 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. It is a low acid tomato with a unique flavor that has been described as sweet, yet slightly tangy. Ok im building a new circle track car useing a 1981 Camaro. var emailHost = "hotmail.com" Adjust all four spring perch offsets to change the cross weight. Order Wilwood part number 150-9442K. Check with the rules to see if it's even mentioned. FOR 78-88 GM METRIC CARS. However, that is only one of the three basic geometric ways to move a tire on a race vehicle. I think with the panard bar and 3rd link the metric cars. ; this was with all four stock trailing arms. Posts: 72. Im using a 9" floater, locker, 60" w/centered pinion. In the same manner, we can lower the rear mount of the upper link and lower the upper IC. How to Open the Setups. Steering Geometry Aug 24th 2005. The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. 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. Most Metric cars I've evaluated have rear RC's up around 14.5 inches off the ground. The cross weight adjustments should work on all dirt cars except the Sprint Cars. Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . 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. Designed and built with one thing in mind, WIN RACES. See All - Best Selling. My name is Rodney Arndt, I have an associates degree in automotive technology. Competitions are held on oval tracks . Reply #9 - 05/01/09 at 8:00pm. 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. .220 to .235 would be fine without a quickner. *-*. That's one thing I've really never understood about some street stock classes that don't allow weight jacks. Since the braking forces are in the opposite direction, there is a serious resistant force created which helps prevent the front suspension from moving in compression too quickly while braking. Then should I use brakes more? If you have any problem with the download, just email me, and I will email or Facebook you your file. 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. We are at a crossroads at this point in time with setup technology in asphalt racing. With so many different combinations of possibilities it leaves us with literally thousands of possible chassis combinations to choose from. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). Last couple of years I ran the car we just used tubular ones with rod ends because it was legal and easier. On the a street stock what size spring would be better to run on the rear. It is this sliding scale situation that determines the stiffness of your front end. As you will gather from this book, setting up your car right and properly maintaining it is a lot of work. . 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. 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. There is one IC for the upper links and one for the lower links. The components that locate the rear end must be evaluated and set correctly. This is what I did to my Metric that won the 2012 UMP National Championship. If you use no brakes you can wear the right front. 1. 35809 FABRICATED IMPALA FRAME. 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. Trends are a part of this learning curve and greatly influence some, but not all racers. If the LR tire is too cool, then the RR spring is too stiff. Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. Balance is spoken of in all types of motorsports these days, even F1. Sometimes the handling of the car might not be to your liking. the radiator. 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. 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. Both of these ICs act like hard points of resistance to lateral movement of the chassis. I appreciate the lead. Re: street stock set up. Pure Stock Tech. Brian Wise. Setup Changes For The Metric four-link Even if we can lower the rear RC to around 13 inches, that's still a high rear RC. 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. Letting the metric cars run Camaro spindles would be a step in the right direction. LIT-719 80292 C7 Corvette Radiator. as for the powertrain setup, 40 over 350 basically all stock with 882 heads and a 450lift isky oval track cam, brand new factory q-jet, running a 3-speed saginaw factory clutch/PP pulling the track in first gear, 2.54 with a 2.73 ring/pinion, not very big on power for the setup works VERY well together for this track, if you can keep it . 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. I'm thinking about building a B Body for dirt track racing. 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. The Antis I understand not wanting to share to much especially if your a racer, but who or where else can I gain info on this? The more third link angle you have, the more antisquat there is. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). Yea how many years ago a1? JP is that the car you wadded up and broke your leg? SR32 - Developed for the right fronts of dirt cars where low grip is needed to help build bias in the front brake system and help the car turn better when you have to use 4 wheel brakes. Forum Actions: Forum Statistics: Threads: 4; Posts: 10; Last Post: I-44 Speedway-Jeg's Master of. Off-centered adjusters can be very inconsistent. Poorboy, I think you're exactly right. Can a 3-link be used effectively without weight jacks? Most of the time when some ask the question they are at that point and just don't know it. Its hard to say without more information. Less fuel equals faster speeds. We cover all forms of racing in the Midwest featuring racing news, results, photos & videos. We run on a semi flat 1/2 mile asphalt track. METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. Furthermore, there is evidence that suggests that plants grown in cement blocks do not suffer from BER (blossom-end rot), which c, Protect Your Garden Against Leaf Issues with Organic Solutions and Preventative Practices, Leaf issues in the garden can be caused by a variety of factors, from pests to environmental conditions. Do not attempt to open the setup file in Windows. Cra bomber, turbo ,etc. 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 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. Also has a anti roll bar added to it. 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. Over the years I have had lots of feedback that most . The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. 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. Here is an explanation of balance related to the dynamics of the race car. I just think frames are harder to come by, so are stock blocks, so the old stock and hobby classes are a dying breed. That move took this design to the next level. 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. jp. Street Stock; Other; Best Selling. 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. Only at teamsimkins.com. You can then make fine adjustments with the sway bar preload if desired. In this article, we explore the possibility of russet mites, thrips, spider mites, and other causes of leaf damage. It might help to leave it unattached on ovals. Conversely, if the car feels tight throughout the corner, raise both track bars. Truck99August 22, 2005 in Grease Monkey Hangout. The surest way to get disqualified is to bolt an illegal part onto your car. 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. No matter which stiffness you decide to go with, the most important aspect of setup is balance, and you achieve that balance with the correct combination of springs, moment centers, sway bars, and load distribution. LIT-721 80293NDP 2009-2015 Cadillac CTS-V HE. Got protested and is now in limbo! Why Lower The Rear RC? Sometimes weather differences will require changes to either tighten or loosen the setup. Dirt Race Life is explaining how to draw out the front end on a race car and determine where the roll center is. Get the best deals on Asphalt Oval Racing Parts when you shop the largest online selection at eBay.com. 2. 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. What Are Russet Mites? Add to Cart. The car is loose mid to exit with not foward drive. 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. You refering to dirt track racing correct? We run on street tires and can not move suspension mounts (viasably ) I won the championship last year with a car . The overall work that a shock does is to resist the rebounding of the springs and control the speed of compression. Go here but read before you post..lol. pretty much none of that ++*% matters at stateline, it is mostly driver and survival is the name of the game, get all your angles and roll centers figured out and you will be faster when you make it to the front i have seen dozens of cars that dominate in the stock class at stateline but get squashed at eriez and rw7 however once you get a car fast at either of those tracks then you will be fast everywhere you go. I built the car not the engine . Tire Tools. The settings, including the moment center location, really do dictate how all of the other parts and pieces of setup will work. If you want to know how to adjust iRacing Sprint Car cross weight, go here. LOL. We ran the car with a lot softer set up than that. Conclusion 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. Adjust the cross weight for more extreme conditions or different circumstances. Check your PM's. 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 ). The idea is to steer the car using different height holes for the rear control arm mounts. They should be matched up within a couple of degrees of average temperature across the tread. Am I correct that you would reattach the sway bar after making the perch adjustments? Save these setup files to C:\Documents\iRacing\setups\dirtstreetstock\. The preferred way to adjust the cross weight is by moving weight around. All customers interested in purchasing, repairing, or setting up a Howe-Eddy modified should contact Travis Eddy at Eddy Performance (989) 948-8005. Add to . Racing Aspirations refers to this point as the roll center (RC), but it can also referred to as the moment center. Download the Jet Mod Scale & Setup Sheet Here! I would rather race 100% legal with a rule book that is written 100% clear and specific, that is enforced as it is written. 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. If one corner of the car is shocked stiff, then as that corner desires to move in compression, more load will be retained by that corner as well as the opposite diagonal corner of the car during the compression cycle only. Street Stock Dirt Oval Racing - All the dirt, clay and pavement-racing excitement in a 1:10 scale RTR. They should also be able to run any panhard bar. This means keep track of weight coming off and going on. To sort of act as a pull bar? These pads are use on dirt for medium and heavy braking, and asphalt for sportsman and Hobby Stock cars. If you could slide the MC to the right, or outside of the turn for you road racers, the front end will get stiffer. A trend must prove itself in order to stand the test of time. 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. I'm a former NASCAR short track driver and league administrator for SASCAR. Lift earlier, and/or drag the brake just a little bit on entry. Each setup has a life cycle or a time frame in which it will work before we run into a stopping point with it. To download a copy of the E-book, simplyclick on the link below. Smaller gains can come later on after the more important aspects of setup are resolved. 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. 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. Happy New Year. THAT ARE CHEAP AND APPEAR STOCK. So, we must make due and set up these cars the best we can. Long gone are the days of saying that the MC is not important. I got a 1000 on ebay 150897831883 at like $5.00 I would do 1100 RF, 1000 LF, 225 LR and, 175 RR but that was on big chevelle or impala chassis. Most of the ideas in this book are perfectly legal for any rule book. I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. Just about all the available setup options that you can adjust on a real WC car can be adjusted in the sim. PREMIER. It was either cheat or park it until the rules change. Good luck. Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. On a metric four-link car, the four control arms determine the rear moment center height too. If this component on your car is not right, then the whole car will suffer, no matter what else you do. One guy said it come up off the ground two feet. Adding neoprene bushings to all of the connection points will unnecessarily restrict movement and cause the chassis to be stiff in roll. Subtle changes often go unnoticed, especially when they're hard to see without jacking the car up and crawling underneath. I would trail brake or lift earlier. In 2005 Victory Circle entered the world of dirt racing. 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. Keep It Fast and Cheap. These cars were meant to ride down the road nice not be fast on dirt, so you have to redo all of the mounts, change the length of the trailing arms, use hiems and/or rubber bushings or even spring loaded trailing arms to build traction. Eliminate most of your bumpsteer and Ackermann and install the correct steering ratio for your track that would suite the driver. I wondered if a 3 link could be made to work well without them. Port City Racecars Road Race Chassis is a purpose-built racing machine. Some people add preload to the sway bar to make cross weight adjustments. Car went anywhere he wanted and was quick time, won the trophy dash, heat race and main. by . Whats the dominant front clip, and what are they doing with these metric rear setups? The rear won't desire much roll and there will be excess load transfer to the outer wheel and tire. 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. I have little experience on dirt but can definetely notice this! The set-up really planted the RR tire. AFCO C2 METRIC PADS $179.99. Use the "new" 7 inch arm on the RH and the 8.5 on the LH. . Camber was -2 deg on RH and +2 deg on LH at ride height. This 7 shock kit includes shocks for every track condition with tips to help fine tune your racecar. 8. All this really depends mostly on the track and maybe the car youre driving. Looking forward to the tips for Dirt Oval racing! Coreless Stretch Film; Pre-Stretch Film; Hand Roll; Machine Roll; Jumbo Roll; Industrial Plastic Division. 6. 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. The upper IC is to the rear of the rearend and the IC for the lower links is well in front of the rearend. Yes, I get inquiries about how to apply the BBSS setups to both of these types of cars. This is our 1988 Monte Carlo Stock Appearing Body. Even when clear rules exist, the track officials are often reluctant to enforce them. Home. Remember that drag is an important aspect of aero design. Ive made the brackets on the rear housing (lowers) longer with trailing arm mounts that have 3 . The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. 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. We must develop ways to create more rear traction on acceleration only. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. "ULTIMATE" Racing Car Chassis Setup Guide and Tutorial. Ill provide a couple of tips that will help you get your car tighter or looser, whichever you need. S3 - Street Stock - USA $4.00; S3 - Street Stock - Lanier $4.00; S3 - Street Stock . Unfortunately, most rule books that I have dealt with are very vague. X-Y-G METRIC STREET STOCK / SPORTSMAN HEADQUARTERs 704-784-5353. The front moment center (MC) location plays a huge role in how the front end wants to work. The CCMS rules allow 3rd link and panhard bar. It would be nice if we could change the rear suspension, I have done a lot of research on it and have found some info, there is just not a lot legally that can be done with it. The driveshaft doesn't know which view these angles are resulting from, just that they are equal and opposite. 122. Grill tape is nothing more than duct tape. You need to locate the moment correctly, and the cambers . A 1 1/2-inch top view misalignment with a 44-inch driveshaft results in nearly 2 degrees of angle at both the tranny and the pinion shafts. 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. Chassis Tuning 101 Murfdogg. This variety grows best when grown alone and can reach up to 12 feet tall. 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. The RC height will move with vertical movement of the rear of the car. A spring split of 250-lb/in spring in the left rear and 200-lb/in spring in the right rear is common. I was just trying to help a guy asking about what is done to the chassis. The metric cars at THR may be as competitive as the camaros but at CC they were not even close untill we were allowed to change to 3 link and a panhard bar. 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. 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. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . 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. 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. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. 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. Over the years, most of the things that I have learned about racing, I've learned the hard way. 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/. lol Stocks are turning the same times as emods at most tracks these days, maybe not the top 3 emods, but pretty much the same wich is crazy. The very first step in the process of preparing for the new season is to consider all performance-related items and how they worked last season. You must log in or register to reply here. It's on a car that I'm helping with. How do I tighten or loosen the car on exit? I never got to the experimenting stage on asphalt. -3 . 03 0@ 34-.=- 2 ++(+'o $ (&%q qqqqqqqqqqqqqqqqqqqq ,&%q qqqqqqqqqqqqqqqqqqq qq (,%q qqqqqqqqqqqqqqqqqqqq ,,%q qqqqqqqqqqqqqqqqqqq qq
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