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. 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. This tape
Dirt Race Life is explaining how to draw out the front end on a race car and determine where the roll center is. So, we either lower the rear RC or soften the springs, especially the right rear spring, or preferably do both. The only component were worried about is
Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. The dynamics of the moment center and the effects of camber change have been explained before. There is no one big trick to make your care handle better, rather its all the little things done right that will make you consistently fast. var email = "RacelineCentral"
Both of these are necessary components that will be needed to win championships. 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. It just won't work. Most good cars are built on wheel scales. Setup & Tech Info - Jet Racing Inc 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. This force is resisted by the ball joints and control amrs. Russet mites are a type of pest that can cause damage to leaves, stems, and petioles. PDF By Bob Bolles, Circle Track Magazine - Longacre Racing You can then make fine adjustments with the sway bar preload if desired. You might try a little trail braking. These pads are use on dirt for medium and heavy braking, and asphalt for sportsman and Hobby Stock cars. set the tone for how the parts and setup will work. Each setup has a life cycle or a time frame in which it will work before we run into a stopping point with it. Ill provide a couple of tips that will help you get your car tighter or looser, whichever you need. 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. This will loosen the car, and that's undesirable, especially on dirt. The problem on dirt is the high rear roll center. 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. On a metric four-link car, the four control arms determine the rear moment center height too. That's one thing I've really never understood about some street stock classes that don't allow weight jacks. This is because of the construction using angled, from a top view, arms that converge to points called instant centers. The proper steps to do this are outlined below. Saturday Night Racer - street stock set up - LATEMODELRACER.COM We cover all forms of racing in the Midwest featuring racing news, results, photos & videos. It's the average height of the instant centers that determine the roll center height. All customers interested in purchasing, repairing, or setting up a Howe-Eddy modified should contact Travis Eddy at Eddy Performance (989) 948-8005. Thank you, that forum is a wealth of information. Dial In Your Metric. Competitions are held on oval tracks . We can run different sized lowering blocks, but that is not the same as a weight jack from a "quick adjustment" perspective. If you need to know the height of your Metric four-link rear roll center, then send an email and I will send you a free calculator to use. Antidive and antisquat are mechanical influences that can help our transitional phases of entry and exit. 358101 FAB . Car went anywhere he wanted and was quick time, won the trophy dash, heat race and main. The Metric four-link suspension design is a bit different than most other rear suspensions. There are ways to do that without changing the handling at other points around the racetrack. With several wins and a championship under our belt after the first year . Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment. Forum Actions: Forum Statistics: Threads: 1; Saturday Night Racer - reverse spring split - LATEMODELRACER.COM 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. I know enough about suspension geometry and how to achieve it, but what i have been playing with now is CG and where it works best. Numerous car builders have come to realize the truth in the above statements. With so many different combinations of possibilities it leaves us with literally thousands of possible chassis combinations to choose from. It was either cheat or park it until the rules change. 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. Just about all the available setup options that you can adjust on a real WC car can be adjusted in the sim. As these pads get hot, they offer more friction, and still work well at over 1000 degrees. And, some aspects of chassis setup build on other aspects. How do I tighten or loosen the car on exit? . 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. Alignment Make small adjustments, about one half of one percent. That's why I asked about weight jacks in the original post. LIT-718 80291 1997 - 2004 Mustang Radiator. Send your request to [email protected]. I guess the leaf cars could be allowed adjustable shackles in the rear to even that one out, sort-of. The fruits of this plant are large and can weigh over one pound. In short, you'll get more rear grip by lowering the rear RC. 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. For me its very hard to be consistent and to adapt to the changing track states! From NE Ohio to North Central Mississippi, everyone has their own ideas and preferences for what they will plant this year. The lateral location of the third link can affect the distribution of load among the two rear tires that results from acceleration and antisquat. sj_valley_dave wrote on 05/01/09 at 12:12pm: 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. Its not necessary unless your own a road course. You need to locate the moment correctly, and the cambers . This configuration is common in General Motors cars built in and around . Plan out changes that could help improve performance or durability. Note the new cross weight and the ride heights. 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. Stock Car Racing, NASCAR, Late Model, Sooner Speedway, Frost Racing Team, Race Links, Chevy Monte Carlo . #1. Caster. 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. A three link with panhard bar using the stock lower mounts works fine. by . X-Y-G METRIC STREET STOCK / SPORTSMAN HEADQUARTERs 704-784-5353. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . This is what I did to my Metric that won the 2012 UMP National Championship. We always start with the front end geometry on any race car. I talk to lots of racers representing every form of circle track racing in every region of the country and beyond. Add to Cart. I see the times at CCMS are identical, THR the truck .5 sec quicker. Your email address will not be published. Roll Center or Moment Center. Stretch Film Division. I think Terry has already tried, but we'll try again. 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. Over the years I have had lots of feedback that most these concepts and ideas work great on dirt, on front wheel drive mini stocks, on almost any street stock, production typerace car. 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. Join OSR Voice/Text Chat. Its hard to say without more information. Both of these ICs act like hard points of resistance to lateral movement of the chassis. 10702FMC FRAME & CAGE - FAB CHEVELLE MOD. The pad is best used on IMCA style modifieds, the fronts of "Outlaw" style modifieds, drag racing . The set-up really planted the RR tire. These components include the radiator, oil/transmission coolers, & brakes. You refering to dirt track racing correct? 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. Thats with a 305 a ton less HP. That was it. Street Stock Tech. METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. Pure Stock Tech. LIT-719 80292 C7 Corvette Radiator. 321. Check your PM's. men need when considering these types of changes. Add Comment. This 7 shock kit includes shocks for every track condition with tips to help fine tune your racecar. 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 . Metric Street Stocks - Page 2 - Lone Star Speedzone Forums Pay attention to the left front tire temperatures versus the left rear. 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. Download the Jet Mod Scale & Setup Sheet Here! Lee Christjohn of Antigo, WI knows what it takes to win street stock races. If the car is tight under throttle, or driving off the left rear, invert the spring perch offset adjustment procedure above. I can only speak for THR, but we are not allowed to use adjustable shackles, or I should say we are not allowed to have shackles of different lengths. The rear roll center is certainly part of the problem. Roll Center(movement center) circle track 1981 Camaro help JEFFREYS Fabrication is coming soon!!! A complete body comes with the fiberglass hood and roof, plastic MD3 nose and tail, a set of skirts, trunk, a box of rivets. 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. I think with the panard bar and 3rd link the metric cars. Nick and I agree on something! 1 being the most important. View Profile View Forum Posts Private Message Visit Homepage 02-25-2021, 09:09 AM. LIT-A950700016 80275NDP Ford Mustang Cobra HE. Remember, we're still using stock components, we're just making small relocations of those points. 6. LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. 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. Sep 1, 2009. How do I adjust the cross weight in an iRacing setup? camaro street stock setup camaro street stock setup We also discuss where we want the roll cente. Metric Four-Link Suspension Design - Circle Track Magazine - MotorTrend With all the negative BS that tends to permiate these boards these days, I thought maybe we could talk about something real and constructive. The bottom line is that at mid-turn, each end will want to roll to its own degree of angle. Too low a ride height could cause the car to bottom out. Letting the metric cars run Camaro spindles would be a step in the right direction. lowers are stock location on frame. Conclusion The Metric four-link rear suspension is here to stay for a while. Everything you need to know to build, set-up and race a Street Stock competitively. Those cars are coming around becoming competitive. 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. Racing Aspirations refers to this point as the roll center (RC), but it can also referred to as the moment center. I never got to the experimenting stage on asphalt. Do not attempt to open the setup file in Windows. Add to . Asphalt Oval Racing Parts for sale | eBay CRA street stock. Strictly asphalt street stocks and parts. 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 I drove the #01 ss for two years and tried everything I could think of within the rules and it was a hard job to keep the car in control because of the binding of the rear suspension. Dec 24, 2005 at 5:33am. Chassis Setup Docs Hyper Racing. Plan to win in a repeatable fashion. I'd think that without them you'd at the very least need to allow some sort of spring adjuster. Pavement Modifieds. Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . "One bad person can ruin it for everyone and that is just disrespectful", The
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. Jul 25, 2011. How about just adding a panhard bar to the stock four-link setup? Brake Pad Identification and Friction Surface Options Explained 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. Circle Track Setup: The Case for Caster. 4m.net - The Most Opinionated Racing Message Board In The Universe 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. The Metric four-link suspension design is a bit different than most other rear suspensions. Shocks In the same manner, we can lower the rear mount of the upper link and lower the upper IC. Brake Bias PDF Harris Auto Racing - Race Cars with Attitude Plan your shock layout by comparing the stiffness of one to the other corners and to the spring stiffness at the corner you are trying to control. 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. 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. To sort of act as a pull bar? One way is to have a rear spring split, where the right rear (RR) spring has less spring rate than the LR spring. Setup Tips for Metric on asphalt. Over the years I have had lots of feedback that most . I was just trying to help a guy asking about what is done to the chassis. the radiator. Some of the names, most notably in the asphalt Street Stock springs, are different, but the process is the same. So, it might be the best for asphalt racing to run as low as possible or as much as the rules allow to create a lower center of gravity. 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. We had LF 1000, RF1300, LR 200, RR200. Ive raise the center section of the chassis where the the upper mounts attach by 3". 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. RacelineCentral.com All Rights Reserved, NASCAR 2K3 Racing Season Garage 101 Guide Download, Creative Commons Attribution-Noncommercial-No Derivative Works 2.5. I built the car not the engine . 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 . Contact Us. Taipei, Taiwan. 1980 Camaro bomber class street stock crate motor ford 9inch. It is not advantageous to have the rearend steer to the right at any time on asphalt. Street Stock Racing Cars for Sale | RacingJunk Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. My Metric front end setup. In the end there is a ton of stuff out there, everyone seems to have something that works. Victory Circle - West Coast asphalt and dirt chassis design and The second most important item in the setup arsenal is the rear geometry layout in your car. Check with the rules to see if it's even mentioned. I ran a street stock/sportsman from 1995 to 2000 with a metric frame. Welcome to STLRacing.com, home of St. Louis Motor Racing News. Probably to the guys that are beating you! 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. Hey I am looking for some guidance setting up my 4 link GM metric rear end. I dont really recommend it. Metric front end setup | Wissota Tech Set-ups, advice - ProBoards Forum Actions: Forum Statistics: Threads: 4; Posts: 10; Last Post: I-44 Speedway-Jeg's Master of. I remember qualifying times in the 19.6 to 19.7 range. //-->. I measured ours at close to 20". Trends are a part of this learning curve and greatly influence some, but not all racers. Reply #9 - 05/01/09 at 8:00pm. On the a street stock what size spring would be better to run on the rear. Did they allow weight jacks? rolling chassis. So, we must make due and set up these cars the best we can. Save these setup files to C:\Documents\iRacing\setups\dirtstreetstock\. A 1/2 inch height change from level can make significant handling changes. If you could slide the MC to the right, or outside of the turn for you road racers, the front end will get stiffer. 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. We run on a semi flat 1/2 mile asphalt track. How do I tighten or loosen the car on entry? Online: $349.99. Only at teamsimkins.com. Customer is to bring a clean non-sandblasted frame when picking up the chassis. For many gardeners, it starts with tomatoes. Has gone 1.29 60 ft on spray, has 28 10.5 et street tires on it also. 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. . The metrics at THR are NOT competitive compared to the leaf cars. This develops more crossweight as the car squats on acceleration. Samuel232. However, they should be required to run he two stock lower rear trailing arms in their stock locations. I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. Triangulated 4-Links: Make Your Stock Suspension Car Work The driveshaft alignment is critical from the standpoint of mechanical efficiency. Caster is best described as a vertical line that runs through the 2 pivot points in your car or trucks suspension. Yeah! 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. A good handling car can make gobs of horsepower and hook it up. Anderson , IN. Understanding the relationship between the rear roll center on these cars and the setup will help us find a more balanced setup. Car has stock location rear links and stock links , different bushings . The settings, including the moment center location, really do dictate how all of the other parts and pieces of setup will work. so I ran a .185 valving. Camber was -2 deg on RH and +2 deg on LH at ride height. I have always believed in priorities because you can make gains faster when you solve the high priorities problems first. If we can lower the Metric RC to 13 inches, we would increase the moment arm length in the rear to 4.5 inches and that's a huge improvement in compliance. Ok im building a new circle track car useing a 1981 Camaro. AFCO C1 METRIC PADS. We took all the cross out like Lee and trailed the RR and did not use much stagger. (Uncheck the box beside Attach left side and use the arrows beside Left bar end clearance to zero the preload). I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. The upper BJ is trying to be forced in a forward direction and the lower BJ is trying to be forced in a rearward direction. View all S3SS. Antisquat is detrimental to corner entry. var contact = "Contact Us"
. This setup guide also has new information based on the changes that go along with the new version of the sim. I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. The control arm angles affect the rear steer and the third-link angle can redistribute load upon acceleration. Speed and how it is made - Bsbgofast.com Johnny likes a softer feeling car, front and back. You need to keep the ride heights as close as possible to where they were before you started. Street Stock Chassis Technology - Amazon.com Street stock spring ? | STLRacing.com 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. If the car feels loose throughout the corner, lower both track bars evenly. After the race I had people come to our pit area and ask how did you get a metric car to lift the left front off the ground?" ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing. We also discuss how to identify the cause and the best treatments for each type of pest. 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. Oct 12, 2013 #2. Bolt on Torque Link Bracket - Afco - Pair Quote. the force of air. What Are Russet Mites? 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. I feel the metrics should definitely be allowed panhard bars and rear weight jacks. 122. Race Car Street Stock Set Up help manual book. The components that locate the rear end must be evaluated and set correctly. As the car is lowered, the rear RC will generally move down. Christjohn has been racing street stocks for 13 years and has amassed 74 feature wins and 4 track championships. 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. This will be a brief tutorial that should help iRacers adjust their setups to better suit their driving styles. Thank you for pointing out the obvious to me . Polyethylene Film / PE Sheet The influence of the location of the front MC can be compared to a sliding scale. Off-centered adjusters can be very inconsistent. state doesn't have. Adjust drag link accordingly, *unless something is bent, spindles, drag link, idler arms, etc. If the car feels tight on corner entry, raise the left track bar. racing on asphalt. Every year, Jack asks drivers for input regarding rules changes for the following year. 1 Min Read. Mopar circle track question | For A Bodies Only Mopar Forum My truck has weight jacks and a stock 4 link. Wheel Covers. 2.Now set toe out. 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. Metric Rearend Suspension Video from a Street Stock jp. The RC height will move with vertical movement of the rear of the car. Would a 11 in be better or a 13 in spring in back be better. Location:Austin, Tx. How to Lower the Cross Weight in an iRacing Setup. A trend must prove itself in order to stand the test of time. 35810 FABRICATED CHEVELLE FRAME. In 2005 Victory Circle entered the world of dirt racing. 6 pt roll cage setup for easy in and out street use. 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. They should also be able to run any panhard bar. Try one or two click on each spring perch shown above to raise the cross weight. I drive both a metric (my truck) and a leaf spring car (ss). Less fuel equals faster speeds. All this really depends mostly on the track and maybe the car youre driving. 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. Click. Fast And Furious. Pavement Late Models Stock Cars. 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. Get the best deals on Asphalt Oval Racing Parts when you shop the largest online selection at eBay.com. Bilstein Stock Car Shock Package-Metric Street Stock - Circle Track Supply If this component on your car is not right, then the whole car will suffer, no matter what else you do. I just think frames are harder to come by, so are stock blocks, so the old stock and hobby classes are a dying breed. Unbalanced setups exhibit easily observed characteristics, such as unusually high degree of wear and temperature on one tire versus the other tires. 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. Sliding the MC left and to the inside of the turn makes the suspension softer. Get any of Steve Smiths street stock books for general knowledge in the essentials of cam/cas, toe out , roll center etc. Designed and built with one thing in mind, WIN RACES.
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