asphalt metric street stock setup

Asphalt circle track metric GM 4-link questions - Speed-Talk.com The bottom line is that at mid-turn, each end will want to roll to its own degree of angle. We have done a lot with the front roll center and cant wait to see how it does, after that, i found some legal stuff for the rear that we will try. Aero Package . Chassis. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). Check your PM's. Each end has its own moment arm length and resistance to roll as well as other factors. 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. Wonder how fast it would be if I changed the locations. 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. Its not necessary unless your own a road course. Roll Center(movement center) circle track 1981 Camaro help 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. Setup & Tech Info - Jet Racing Inc For the lower links, lowering the chassis mounts at the front of the link lowers the rear RC. Chassis - Port City Race Cars Before you start your season, you need to create your LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. Sliding the MC left and to the inside of the turn makes the suspension softer. 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. Here are some recommendations. 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. In the last article, I talked about the uses of toe and how it affects both drivability and front-end dynamics. The Camaro's we were running against could have weight jacks and tubular uppers as well so it was pretty even. 1 being the most important. This will loosen the car, and that's undesirable, especially on dirt. Taipei, Taiwan. Chassis Setup Docs Hyper Racing. Im using a 9" floater, locker, 60" w/centered pinion. You must log in or register to reply here. To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. Just about all the available setup options that you can adjust on a real WC car can be adjusted in the sim. Stock Car Racing, NASCAR, Late Model, Sooner Speedway, Frost Racing Team, Race Links, Chevy Monte Carlo . Moderators:FeliciaMC88, UFo Race Championship. If you can use bucket and run a taller sprign thats a good way to go. LIT-A950700006 80249N Ford F-150 LightningHarley HE. Polyethylene Film / PE Sheet 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. The track was a 5/8 mile asphalt and was extremely fast. 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. 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. The Street Stock | Get Started Racing Adjustment Guide - Medieval Chassis. And I do agree weight jacks don't cost much, sure is alot easier to do the same thing we were doing with hidden couplers and shims . As the front brakes are applied, the caliper grabs the rotor and the motion of the wheel/rotor tries to rotate the spindle. How do I adjust the cross weight in an iRacing setup? Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment. 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. Symptoms include bronzing on stems and petioles, curling and drying up of leave, This website uses cookies for functionality, analytics and advertising purposes as described in our. Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. You refering to dirt track racing correct? Customer is to bring a clean non-sandblasted frame when picking up the chassis. *-*. 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 ). Conversely, if the car feels tight throughout the corner, raise both track bars. 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. 6. $1,700. If the car is tight under throttle, or driving off the left rear, invert the spring perch offset adjustment procedure above. It is this sliding scale situation that determines the stiffness of your front end. These pads are use on dirt for medium and heavy braking, and asphalt for sportsman and Hobby Stock cars. how to adjust iRacing Sprint Car cross weight, go here. 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. The car will turn better and we will have more bite off the corners. I would get the metric arms from Speedway P-N 910-31134-RH (LH) they are 8.0 and 8.5 long. The Antis It seems like it is the modern buzzword for describing the goals of chassis setup. From NE Ohio to North Central Mississippi, everyone has their own ideas and preferences for what they will plant this year. PREMIER. 4. Heck, if you are paying 20 bucks to get into the pits you might . However, tie down shocks are becoming less and less desirable. 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. The car may or may not be neutral in handling, but the handling will not be consistent. Additionally, modern pennies are only 2.5% copper, so older pennies should be used instead for better results. We must develop ways to create more rear traction on acceleration only. RAceman. This means keep track of weight coming off and going on. The less fuel in the tank the tighter the chassis will become. I thought these were street STOCKS? If those desired angles are different, then we term the setup unbalanced. Brake Pad Identification and Friction Surface Options Explained Jul 25, 2011. taipei city stock pictures, royalty-free photos & images METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. Quote. Camber was -2 deg on RH and +2 deg on LH at ride height. BBC Truck Header 2 1/4in X 4in Fender Well Schoenfeld 2348 . We have been softening those setups over the years, but never intended to go to coil bind or bump rubbers. 2. I would suggest going to www,4m.net to the tech board. A three link with panhard bar using the stock lower mounts works fine. The proper steps to do this are outlined below. JP, are you saying that you were allowed to run it in that form - stock lowers with an aftermarket upper link? . Wheels. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. iRacing Dirt Street Stock Setups - Old School Racing Motorsports LIT-A950700016 80275NDP Ford Mustang Cobra HE. I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. I think everyone agrees that the old leaf spring cars (Camaros and Novas) are becoming harder and harder to find. But the most useful rear steer will only occur on acceleration and not at mid-turn. I drive both a metric (my truck) and a leaf spring car (ss). Free Download Chapter listings from Street Stock Setup Maual 2.1.pdf (PDF). ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. The Metric four-link suspension design is a bit different than most other rear suspensions. If we can raise the upper front link mounts, we can lower the rear RC by lowering the upper IC. 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. JavaScript is disabled. Posted August 22, 2005. The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. LIT-721 80293NDP 2009-2015 Cadillac CTS-V HE. A Setup To-Do List to Get You Started . in Exotic Race Cars on a Real RaceTrack, Copyright 2000-2023 In Stock. Lift earlier, and/or drag the brake just a little bit on entry. 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. 1. What do you think Nick? Contact Us. My name is Rodney Arndt, I have an associates degree in automotive technology. Off-centered adjusters can be very inconsistent. Conversely, if the car feels tight throughout the corner, raise both track bars. . The MC should always be somewhere close to the centerline (i.e., midway between the tire contact patches). That's why I asked about weight jacks in the original post. We got away from running thatmuch cross as the car was pushy. Always try to start with the track bars first. It just won't work. We even did pretty good with it in the THR LLM class back in `99. Good luck. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . Ive made the brackets on the rear housing (lowers) longer with trailing arm mounts that have 3 . Thats the theory and the science anyway. On a metric four-link car, the four control arms determine the rear moment center height too. They should be matched up within a couple of degrees of average temperature across the tread. . 10. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). Modified Chassis - Howe Racing Enterprises, Inc Truck99August 22, 2005 in Grease Monkey Hangout. 5. It might help to leave it unattached on ovals. And as for you Modified and Stocker class teams, don't even think about it. Billy Becka's 29 car, as he mentioned, was fast at SAS, but THR and SAS are very different beasts. 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. Whats the dominant front clip, and what are they doing with these metric rear setups? Long gone are the days of saying that the MC is not important. Numerous car builders have come to realize the truth in the above statements. The fruits of this plant are large and can weigh over one pound. Pay attention to the left front tire temperatures versus the left rear. If the car feels loose on corner entry, lower the left track bar. Motorcycle. 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 force of air. Copper has been known to kill tomato plants if placed directly into the stem or base, but placing copper wire around the wound may not have the same effect. I think I'll make a proposal along these lines. Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. so I ran a .185 valving. Even when clear rules exist, the track officials are often reluctant to enforce them. by RonL Fri Jul 17, 2015 12:02 am, Powered by phpBB Forum Software phpBB Limited, Shocks, Springs, Brakes, Frame, Body Work, etc. Told me he might be going to Lebanon to run now. Can a 3-link be used effectively without weight jacks? I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. 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. racing aspirations Moment Center for Circle Track What do you mean by spring loaded trailing arm, i've always had that idea, but not sure if its something thats available or something i would have to fab up. If we have a top view difference in alignment between the transmission output shaft and the pinion shaft and they are parallel, then the angle to the driveshaft created by that misalignment might be sufficient to provide the needed angular differential needed for loading the U-joint bearings and reducing negative harmonics. We have continually pressed these issues because of the extreme importance they have. We showed you the 3-link rear end last week. 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. Metric Chassis Roll Centers - Lone Star Speedzone Forums You are using an out of date browser. In order to slow you must lose (kinetic) energy. This guide was awesome! 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. Shown above is a gaming expo fair in Europe that held a contest for the best gamer team in a newly released 1st shooter game I better get the torch and welder dusted off! These are the general rules unless you are trying to "tie down" a corner. 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. Setup Tips for Asphalt Oval Racing Roll Center Design and Explanation for a Street Stock - YouTube It has been found that the misalignment of your tires/wheels presents serious drawbacks to a finely tuned chassis and setup. On the a street stock what size spring would be better to run on the rear. A three link with panhard bar using the stock lower mounts works fine. This would mean we could align the driveshaft from a side view inline with the tranny shaft and the pinion shaft with no angular deflection. I have little experience on dirt but can definetely notice this! March 27, 2015. We had LF 1000, RF1300, LR 200, RR200. METRIC CROW FOOT Other Items Online Auctions If you want to know how to adjust iRacing Sprint Car cross weight, go here. Dirt Modified IMCA, Local Tracks. The idea is to steer the car using different height holes for the rear control arm mounts. there are a lot of knowledgeable guys there. 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. var emailHost = "hotmail.com" Victory Circle - West Coast asphalt and dirt chassis design and Letting the metric cars run Camaro spindles would be a step in the right direction. Add to . Thanks a lot for making it. We took all the cross out like Lee and trailed the RR and did not use much stagger. The car madracing 19 has for sale has all of these things done to it. 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. 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. 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. The setup we choose needs to be arranged so that the dynamics are balanced between the front and the rear suspensions. Mopar circle track question | For A Bodies Only Mopar Forum You need to locate the moment correctly, and the cambers . Street Stock Racing Cars for Sale | RacingJunk Antidive helps prevent sudden nose dive on entry by mechanically resisting the downward motion of the suspension using the rotational forces created through braking. The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. As each season comes along, our knowledge of what we need and desire grows. I understand not wanting to share to much especially if your a racer, but who or where else can I gain info on this? LOL. The preferred way to adjust the cross weight is by moving weight around. The influence of the location of the front MC can be compared to a sliding scale. We even did pretty good with it in the THR LLM class back in `99. The more third link angle you have, the more antisquat there is. In 2010 we made a good car better by a design change with the introduction of the Chevelle front clip. It is not advantageous to have the rearend steer to the right at any time on asphalt. Anderson , IN. Every year, Jack asks drivers for input regarding rules changes for the following year. 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. You can try bigger adjustments if you cant tell much difference in the handling after you make smaller adjustments. Leaf springs are important when towing heavy objects.Bear with me here, this digs a little deeper into how leaf spring suspensions work. men need when considering these types of changes. After payment you will be directed to a download page. also get to the scales whenever you can. 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/. I measured ours at close to 20". Nick might be a better theory guy but I don't think that just adding a panhard bar will get you there. 97 to 2004 set up sheet for stock metric lowers ride height lf 3 1 2 to 4 rf 4 1 2 lr 11 1 4 to 11 1 2 rr 11 1 2 4 link amp 3 link lf 1100 rf 1000 these spring rates are a good starting point some tracks call for a little less and some for a more don t listen to your buddies on spring rates because different, the 4 5 / 20 We can run different sized lowering blocks, but that is not the same as a weight jack from a "quick adjustment" perspective. Street Stock. The rear won't desire much roll and there will be excess load transfer to the outer wheel and tire. 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. 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. The pad is best used on IMCA style modifieds, the fronts of "Outlaw" style modifieds, drag racing . In short, you'll get more rear grip by lowering the rear RC. I see the times at CCMS are identical, THR the truck .5 sec quicker. 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. . STREET STOCK RACING CHEATS/TIPS? - Racingjunk Forums 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. 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. 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. Most of the ideas in this book are perfectly legal for any rule book. Antisquat is detrimental to corner entry. state doesn't have.