asphalt metric street stock setup

For the novice sim racer, all these setup options can seem overwhelming & confusing without the knowledge of what all these adjustments are or do.By understanding the basics of what each component is & how it directly effects the car, you'll quickly discover what direction you should head when trying to adjust for that looseness exiting the corner under acceleration. 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. 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. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. The bottom line is that at mid-turn, each end will want to roll to its own degree of angle. 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. 6. Bush i agree with your Eriez/ 7 comment. We were allowed weight jacks and after market uppers in front also. If there is, try to adjust the brake bias to eliminate the adverse condition. Looking forward to the tips for Dirt Oval racing! Can a 3-link be used effectively without weight jacks? 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. The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. . 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 Basically - after you finish the set up routine, the car goes in the hauler. SUCH AS SPRINGS, SHOCKS, SWAYBARS ETC. Bite Off The Corners Motorcycle. Here are what we consider to be the 10 most important areas of chassis setup with No. Lowering the rear RC and softening the RR spring will help solve the problem. 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. Prices listed are with a frame swap option. I would trail brake or lift earlier. That's one thing I've really never understood about some street stock classes that don't allow weight jacks. It's the average height of the instant centers that determine the roll center height. However, tie down shocks are becoming less and less desirable. Create New Wish List . Most of the ideas in this book are perfectly legal for any rule book. A Setup To-Do List to Get You Started . LIT-A950700006 80249N Ford F-150 LightningHarley HE. Most Metric cars I've evaluated have rear RC's up around 14.5 inches off the ground. Sliding the MC left and to the inside of the turn makes the suspension softer. 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. 358101 FAB . Home. I guess the leaf cars could be allowed adjustable shackles in the rear to even that one out, sort-of. Not sure if there is a standard for metric cars but I havent found any specs on it. It is not advantageous to have the rearend steer to the right at any time on asphalt. The front end takes time and effort to get the bump steer and caster gain within a tolerable amount, you have to move the upper and lower control arm mounts, cut the left side lower control arm, use special length ball joints, etc, etc. Drag the brake lightly as you enter the corner. 507-386-3930. CRA street stock. Front End Geometry Since mustangs have a similar rear suspension would these same mods work? 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. At some point, we take in enough information to allow us to avoid the mistakes of the past and get ahead of the curve in setting up our asphalt cars. Use the "new" 7 inch arm on the RH and the 8.5 on the LH. Racing Aspirations refers to this point as the roll center (RC), but it can also referred to as the moment center. By Bob Bolles, Circle Track Magazine . 2. Has boxed lowers, adjustable uppers , stock springs and shock. "ULTIMATE" Racing Car Chassis Setup Guide and Tutorial. The fruits of this plant are large and can weigh over one pound. Conversely, if the car feels tight throughout the corner, raise both track bars. These are the general rules unless you are trying to "tie down" a corner. 2.Now set toe out. If you can use bucket and run a taller sprign thats a good way to go. The car will turn better and we will have more bite off the corners. ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing. did desi arnaz jr have a stroke; moose tracks vs cow tracks ice cream Antidive and antisquat are mechanical influences that can help our transitional phases of entry and exit. 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). Your email address will not be published. state doesn't have. Setup Tips for Metric on asphalt. There are some different lower a-arms and front suspension things to make them even better. However, that is only one of the three basic geometric ways to move a tire on a race vehicle. View all S3SS. If this component on your car is not right, then the whole car will suffer, no matter what else you do. The influence of the location of the front MC can be compared to a sliding scale. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. It costs just as much money, if not more, to run poorly, so you might as well learn to run well. Location. I was wondering if anyone out there had any experience circle track racing a mopar unibody. We run on a semi flat 1/2 mile asphalt track. Every year, Jack asks drivers for input regarding rules changes for the following year. 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. Chassis. It must show a consistent gain in performance and a logical ideology to the bulk of race teams. 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/. The driveshaft alignment is critical from the standpoint of mechanical efficiency. Afco Racing Products. 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. Although Im sure youre backing up your corner and lifting early, it can still wear the right front because the tendency is to lift as late as possible which can cause a faster corner entry than you might realize, causing the RF to heat up. And your choice of aluminum or steel fenders doors and quarters. Disconnect the sway bar and zero (unload) it. 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. in Exotic Race Cars on a Real RaceTrack, Copyright 2000-2023 My name is Rodney Arndt, I have an associates degree in automotive technology. Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. Car has stock location rear links and stock links , different bushings . 70030. Race Car Street Stock Set Up help manual book. We ran the stock lowers but boxed them and put in better bushings if I recall correctly. Click. JavaScript is disabled. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . Go here but read before you post..lol. There are a lot of things you can do to improve handling. Also the rear springs on that car Dave 24, are either Landrum 200-175 or Afco 194-166can't remember, Only if you are racing anywhere except Bonneville.lol Chad. The rear roll center is certainly part of the problem. These components include the radiator, oil/transmission coolers, & brakes. Posts: 72. Add to Cart. I was also wondering, are there any tricks you have to make your tires wear slower without damaging speed. 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. jp. This develops more crossweight as the car squats on acceleration. 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. I would rather race 100% legal with a rule book that is written 100% clear and specific, that is enforced as it is written. That is the best description of the result of the dynamic force that influences each system. Verndale, MN. 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. Make small adjustments, about one half of one percent. Over the years I have had lots of feedback that most . This variety grows best when grown alone and can reach up to 12 feet tall. So don't try it. This was taken at Butler Speedway in Michigan. Lee Christjohn of Antigo, WI knows what it takes to win street stock races. 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. You are using an out of date browser. 9. Pure Stock Tech. For the Big Bar, Soft Spring setups, teams often introduce Pro-dive into the left front suspension to encourage rapid dive on entry to get the left front down quickly. Adjust drag link accordingly, *unless something is bent, spindles, drag link, idler arms, etc. Contact Us. -3 . 03 0@ 34-.=- 2 ++(+'o $ (&%q qqqqqqqqqqqqqqqqqqqq ,&%q qqqqqqqqqqqqqqqqqqq qq (,%q qqqqqqqqqqqqqqqqqqqq ,,%q qqqqqqqqqqqqqqqqqqq qq On the a street stock what size spring would be better to run on the rear. Chassis Setup Docs Hyper Racing. var emailHost = "hotmail.com" 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. Setup Balance I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. 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. Load the setup in the iRacing simulation under Garage - My Setups. A set up plan will help you to build a race winning effort. 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. Welcome to STLRacing.com, home of St. Louis Motor Racing News. A 1/2 inch height change from level can make significant handling changes. The surest way to get disqualified is to bolt an illegal part onto your car. The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. ; C1 - Designed for medium to low brake temperatures and provides good cold bite while being rotor friendly. by rick7343 Fri May 01, 2015 5:14 pm, Post . 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. Thanks a lot for making it. Get it right or don't get it at all. .220 to .235 would be fine without a quickner. 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. Always try to start with the track bars first. 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 . The components that locate the rear end must be evaluated and set correctly. Includes: Performance handling basics, chassis & roll cage fabrication, front suspension alignment, changing the roll center and camber curve, rear suspensions, springs and shocks, tires (bias and radial), stagger, gearing, basic chassis set-up for asphalt and dirt tracks, weight adjustments, tuning the car to . Understanding the relationship between the rear roll center on these cars and the setup will help us find a more balanced setup. 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. Street Stock Dirt Oval Racing - All the dirt, clay and pavement-racing excitement in a 1:10 scale RTR. This setup guide also has new information based on the changes that go along with the new version of the sim. Officials are trained to find sneaky parts. Excessive front toe in will make a car turn into a corner quicker, & may create a loose condition. Dirt Race Life is explaining how to draw out the front end on a race car and determine where the roll center is. Cvracer5. The artistry comes in when you actually do it. See auction date, current bid, equipment specs, and seller information for each lot. Shocks Its a whole lot more driver and a whole lot less setup on dirt. Contact Us. 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. Subtle changes often go unnoticed, especially when they're hard to see without jacking the car up and crawling underneath. 8. I dont really recommend it. AFCO C2 METRIC PADS $179.99. The Antis If it is too far to one side, then changes to the brake master cylinder sizes and/or the pad compounds might need to be made in order to maintain a centered-bias adjuster. Your close on the springs if the car is 3200. It depends on your rule book and it's enforcement. Refer to the images below. I think Terry has already tried, but we'll try again. Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! This guide was awesome! We run on street tires and can not move suspension mounts (viasably ) I won the championship last year with a car . The Metric four-link suspension design is a bit different than most other rear suspensions. LIT-A950700016 80275NDP Ford Mustang Cobra HE. Current Stock: Quantity: Decrease Quantity: Increase Quantity: Save to Wishlist. Greetings guys, Im new to the site. lowers are stock location on frame. Jul 25, 2011. Port City Racecars Road Race Chassis is a purpose-built racing machine. Using our asphalt design technology as a building block and the dirt experience of our new shop foreman we designed our first dirt late model. 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. I wondered if a 3 link could be made to work well without them. Car went anywhere he wanted and was quick time, won the trophy dash, heat . Please Login or Register 03/04/23 at 12:37am, what front springs to start with and whats a good baseline for wieghts the minum is 3100 what do i need for leftside,rear,and cross. Nick might be a better theory guy but I don't think that just adding a panhard bar will get you there. I thought these were street STOCKS? 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. If we can raise the upper front link mounts, we can lower the rear RC by lowering the upper IC. Thank you, that forum is a wealth of information. As the front brakes are applied, the caliper grabs the rotor and the motion of the wheel/rotor tries to rotate the spindle. Divide that in half for the center of the wheel. A tight condition is the number one complaint from drivers. 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. And as for you Modified and Stocker class teams, don't even think about it. LOL. Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. 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. So, we must make due and set up these cars the best we can. I don't really encourage that method. That's just a thought, i don't know that for sure. This configuration is common in General Motors cars built in and around . race pictures, racing news and season updates for the Frost Racing Team. It is not advantageous to have the rearend steer to the right at any time on asphalt. A level panhard bar ( same mounting height on both sides) means force is vectored laterally to the tires. 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. If you use no brakes you can wear the right front. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. competition. Post You need to locate the moment correctly, and the cambers . Note the new cross weight and the ride heights. 10702FMC FRAME & CAGE - FAB CHEVELLE MOD. Its not necessary unless your own a road course. I'm thinking that a panhard bar would eliminate side to side motion but little else. Page 1 of 1. What do I do if the car is loose or tight throughout the corner? Play the all new "DANNY SIMKINS - 11 STRAIGHT - trivia game." 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. Chassis Tuning 101 Murfdogg. 3. To add weight to a given corner, raise the ride height at that corner or lower the ride height at an adjacent corner. 4. What do you think Nick? Ackermann is easily checked by using a laser system or strings. Wheels. Lift earlier, and/or drag the brake just a little bit on entry. Over the years, most of the things that I have learned about racing, I've learned the hard way. Reply #9 - 05/01/09 at 8:00pm. A trend must prove itself in order to stand the test of time. I think with the panard bar and 3rd link the metric cars. Aug 24th 2005. I don't know much about spring adjusters hidden or otherwise but I'd say they could be made to work. 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. LIT-718 80291 1997 - 2004 Mustang Radiator. This means keep track of weight coming off and going on. The moment arm is 5.5 inches for the Late Model and is much easier to set up. rolling chassis. I'm thinking about building a B Body for dirt track racing. 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. Check your PM's. We must develop ways to create more rear traction on acceleration only. Conclusion We cover all forms of racing in the Midwest featuring racing news, results, photos & videos. Thats with a 305 a ton less HP. 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. Ive made the brackets on the rear housing (lowers) longer with trailing arm mounts that have 3 . The metrics at THR are NOT competitive compared to the leaf cars. JEFFREYS Fabrication is coming soon!!! We had LF 1000, RF1300. Street Stock Setups - Custom iRacing Setups and Paints for dirt oval and asphalt oval cars. The right-side tire contact patches will also need to be inline with the right front tire pointed straight ahead. We can lower the rear RC by making changes to the mounting points. It has been found that the misalignment of your tires/wheels presents serious drawbacks to a finely tuned chassis and setup. Wheel Covers. 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 ). Probably to the guys that are beating you! 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. With allot of experimenting I found a way to really get the car to hook up. 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. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. Christjohn has been racing street stocks for 13 years and has amassed 74 feature wins and 4 track championships. Poorboy, I think you're exactly right. 5. Even when clear rules exist, the track officials are often reluctant to enforce them. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) The metric cars can use different size spring spacers as well, so the playing field is already level in that respect. A good handling car can make gobs of horsepower and hook it up. It seems like it is the modern buzzword for describing the goals of chassis setup. My Metric front end setup. Full of fuel, everything done, full of oil, lead bolted down. X-Y-G METRIC STREET STOCK / SPORTSMAN HEADQUARTERs 704-784-5353. 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. 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). Do not seek aero downforce at the expense of aero drag increase. The dynamics of the moment center and the effects of camber change have been explained before. If the car is tight under throttle, or driving off the left rear, invert the spring perch offset adjustment procedure above. 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 . Caster is best described as a vertical line that runs through the 2 pivot points in your car or trucks suspension. men need when considering these types of changes. Brian Wise. Street stock, pure stock, sportsman, factory stock. We can run different sized lowering blocks, but that is not the same as a weight jack from a "quick adjustment" perspective. The rear won't desire much roll and there will be excess load transfer to the outer wheel and tire. But there is still some changes to be made from track to track. This force is resisted by the ball joints and control amrs. Alignment ; this was with all four stock trailing arms. 6 pt roll cage setup for easy in and out street use. View Profile View Forum Posts Private Message Visit Homepage 02-25-2021, 09:09 AM. For warmer track temperatures, you are going to need to tighten the car. The Metric four-link suspension design is a bit different than most other rear suspensions. If all of these issues are evaluated and corrected, then you can move on. They arent usually as good at spotting little modifications to every single part of the suspension. By It is a low acid tomato with a unique flavor that has been described as sweet, yet slightly tangy. Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. 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. I see the times at CCMS are identical, THR the truck .5 sec quicker. 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. The steering system in your car must be evaluated and any negative characteristics must be eliminated. 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. These cars just take a little longer to get them set-up compared to the camaros, but there are alot more adjustment points to help you get and stay fast. Moderators:FeliciaMC88, UFo Race Championship. 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. 35810 FABRICATED CHEVELLE FRAME. Yes, I get inquiries about how to apply the BBSS setups to both of these types of cars. 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. Antisquat is detrimental to corner entry. When the LF is too cold, the RR spring is too soft. That troubles me. JP, are you saying that you were allowed to run it in that form - stock lowers with an aftermarket upper link? Save these setup files to C:\Documents\iRacing\setups\dirtstreetstock\. This will be a brief tutorial that should help iRacers adjust their setups to better suit their driving styles. Some of the names, most notably in the asphalt Street Stock springs, are different, but the process is the same. Another gardener is pla, Get Free Seeds & Taste the Delicious Flavor of Estler's Mortgage Lifter with Edweather's Generous Offer, Estler's Mortgage Lifter is an heirloom tomato variety developed by William Estler in the mid-1920s. JP is that the car you wadded up and broke your leg? Antidive helps prevent sudden nose dive on entry by mechanically resisting the downward motion of the suspension using the rotational forces created through braking. I better get the torch and welder dusted off! As you will gather from this book, setting up your car right and properly maintaining it is a lot of work. 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. Often overlooked in the mainstream, dirt track racing is one of the most exciting forms of tire-scorching car racing action. Long exposure, Nikon D810. Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment. 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. That extra effort is what separates the front runners from the rest of the field. I understand not wanting to share to much especially if your a racer, but who or where else can I gain info on this? Eliminate most of your bumpsteer and Ackermann and install the correct steering ratio for your track that would suite the driver. In situations where the exit portion of the track provides less traction and/or the corner is more flat, we might need to develop more rear traction upon acceleration. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). 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. Might go25- 50 pds more on each side and the left side should be more than the right side. 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. Check with the rules to see if it's even mentioned. Adjust all four spring perch offsets to change the cross weight. . ANYBODY KNOW OF ANY STREET STOCK RACING CHEATS/TIPS. Good luck. Location:Austin, Tx. Free . 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. Metrics can be competitive IF they are permitted to address their four-point rear suspension problems. As the car is lowered, the rear RC will generally move down. 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 ran the car with a lot softer set up than that. How about just adding a panhard bar to the stock four-link setup? The front moment center (MC) location plays a huge role in how the front end wants to work. Ok im building a new circle track car useing a 1981 Camaro. 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.