var contact = "Contact Us" 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. 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. These desires are directly influenced by the spring stiffness, location, and spring split, the sprung weight the system has to support, along with the moment center locations and other settings. 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. Told me he might be going to Lebanon to run now. 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 effect is huge. I can agree to use a LR instead RR. My name is Rodney Arndt, I have an associates degree in automotive technology. 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. It may not display this or other websites correctly. 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. Taipei, Taiwan. Biggest change is getting ride height . Basically - after you finish the set up routine, the car goes in the hauler. I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . Conclusion If the car feels tight on corner exit, raise the right track bar. there are a lot of knowledgeable guys there. What do I do if the car is loose or tight throughout the corner? Did you see anything interesting? Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. var emailHost = "hotmail.com" 1 being the most important. The right-side tire contact patches will also need to be inline with the right front tire pointed straight ahead. We always start with the front end geometry on any race car. All customers interested in purchasing, repairing, or setting up a Howe-Eddy modified should contact Travis Eddy at Eddy Performance (989) 948-8005. 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. 1. Here are what we consider to be the 10 most important areas of chassis setup with No. Now you have to compensate with spring change. 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. 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. This will help keep your ride heights in the ballpark. How about just adding a panhard bar to the stock four-link setup? 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. Online: $349.99. I was wondering if anyone out there had any experience circle track racing a mopar unibody. Location:Austin, Tx. Trends are a part of this learning curve and greatly influence some, but not all racers. The rear roll center is certainly part of the problem. 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. How to Lower the Cross Weight in an iRacing Setup. But the most useful rear steer will only occur on acceleration and not at mid-turn. 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. LIT-721 80293NDP 2009-2015 Cadillac CTS-V HE. I have little experience on dirt but can definetely notice this! Im using a 9" floater, locker, 60" w/centered pinion. A Setup To-Do List to Get You Started . 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. This force is resisted by the ball joints and control amrs. Unfortunately, most rule books that I have dealt with are very vague. 507-386-3930. . That's why I asked about weight jacks in the original post. The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. Adjustment Guide - Medieval Chassis. 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/. 7. Try one or two click on each spring perch shown above to raise the cross weight. Smaller gains can come later on after the more important aspects of setup are resolved. Each suspension system desires to do its own thing when lateral forces are introduced from the car going through the turns. And your choice of aluminum or steel fenders doors and quarters. Ill start of saying i know how to mesure the roll center but im not sure where im trying to go or how to exactly. Home. 10702FMI FRAME & CAGE - FAB IMPALA MOD. Wheels. 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 . I once drove a metric on both dirt and asphalt. 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. 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. Most Metric cars I've evaluated have rear RC's up around 14.5 inches off the ground. As for stock arms they worked just fine ,and didn't cost anything. Fast And Furious. Long exposure, Nikon D810. 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 read alot of stuff, some of it usefull some of it crazy. Designed and built with one thing in mind, WIN RACES. It is not advantageous to have the rearend steer to the right at any time on asphalt. For a better experience, please enable JavaScript in your browser before proceeding. However, tie down shocks are becoming less and less desirable. Cra bomber, turbo ,etc. Street Stock Setups. Shocks Get the best deals on Asphalt Oval Racing Parts when you shop the largest online selection at eBay.com. I don't really encourage that method. We run on street tires and can not move suspension mounts (viasably ) I won the championship last year with a car . Motorcycle. MSRP: $515.99. After payment you will be directed to a download page. Add to . I ran a metric street stock at HMP for a number of years and was definitely not at a disadvantage. by rick7343 Fri May 01, 2015 5:14 pm, Post 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. 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 idea is to steer the car using different height holes for the rear control arm mounts. Did they allow weight jacks? So, there is a limit to how much you can get away with and still have a decent corner entry. 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. Street Stock Tech. 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. 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. Front End Geometry One guy said it come up off the ground two feet. Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. A level panhard bar ( same mounting height on both sides) means force is vectored laterally to the tires. Street Stock; Other; Best Selling. I measured ours at close to 20". 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. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) The more third link angle you have, the more antisquat there is. JavaScript is disabled. Add to Cart. 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. Christjohn likes to get to the track early and get his car set up so he can watch the races. 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. Of the other two, camber is well-recognized, but for all intents and purposes, the least-understood . 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. 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. AFCO C2 METRIC PADS $179.99.
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