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. This will help keep your ride heights in the ballpark. 30 day Money Back Guarantee!- If you don't learn something that helps you go faster, email me and I will refund 100% of your money back.
SR10 Dirt Oval RTR | Associated Electrics 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. Good luck. Shocks As the car is lowered, the rear RC will generally move down. 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. Here are what we consider to be the 10 most important areas of chassis setup with No. Adjustment Guide - Medieval Chassis. Ill provide a couple of tips that will help you get your car tighter or looser, whichever you need. The rear roll center is certainly part of the problem. I better get the torch and welder dusted off! Some people add preload to the sway bar to make cross weight adjustments. It costs just as much money, if not more, to run poorly, so you might as well learn to run well.
Victory Circle - West Coast asphalt and dirt chassis design and The less fuel in the tank the tighter the chassis will become. by rick7343 Fri May 01, 2015 5:14 pm, Post Adjust the cross weight for more extreme conditions or different circumstances. Click. Next is engine set back if allowed. The proper steps to do this are outlined below. We must develop ways to create more rear traction on acceleration only.
PREMIER. Stock Car Racing, NASCAR, Late Model, Sooner Speedway, Frost Racing Team, Race Links, Chevy Monte Carlo . ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing.
Brake Pad Identification and Friction Surface Options Explained The engine should always be aligned perpendicular to the rearend and/or parallel to the centerline of the car. 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. Christjohn has been racing street stocks for 13 years and has amassed 74 feature wins and 4 track championships. Posts: 72. 10. That is the essence of shock technology related to handling influences. Pay attention to the left front tire temperatures versus the left rear. This is very "old school" but when applied with a balanced setup, very effective. Order Wilwood part number 150-9442K. Plan to win in a repeatable fashion. Get the best deals on Asphalt Oval Racing Parts when you shop the largest online selection at eBay.com. The steering system in your car must be evaluated and any negative characteristics must be eliminated. 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. Quote. In order to slow you must lose (kinetic) energy. 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.
Saturday Night Racer - street stock set up - LATEMODELRACER.COM Circle Track Setup: The Case for Caster - iRacing.com 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. //-->. It just won't work. 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. 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. METRIC CROW FOOT Other Items Online Auctions at EquipmentFacts.com. I would like know what the ic would be on a g body with a 9 inch in the rear with stock suspension. If we arrange our control arm angles, from a side view, for antidive, then as the car dives the upper BJ would move to the rear and the bottom BJ would move to the front. $1,700. However, tie down shocks are becoming less and less desirable.
Bolt on Torque Link Bracket - Afco - Pair 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. Wheel Covers. Wheels. THAT ARE CHEAP AND APPEAR STOCK. Metrics can be competitive IF they are permitted to address their four-point rear suspension problems. I see the times at CCMS are identical, THR the truck .5 sec quicker. 9. 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. How do I tighten or loosen the car on entry? Im lifting early and using zero brake. A Setup To-Do List to Get You Started . Get Ready for a New Season of Gardening -Choose from Tomatoes, Peaches, Corn, Zinnias & More! Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system.
Tech Central - AFCO - Racing Basically - after you finish the set up routine, the car goes in the hauler. Wheel Accessories.
Metric Four-Link Suspension Design - Circle Track Magazine - MotorTrend 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. 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 It depends on your rule book and it's enforcement. As you will gather from this book, setting up your car right and properly maintaining it is a lot of work. Lee Christjohn of Antigo, WI knows what it takes to win street stock races. Always try to start with the track bars first. Pavement Late Models Stock Cars. If those desired angles are different, then we term the setup unbalanced. Get it right or don't get it at all. Car went anywhere he wanted and was quick time, won the trophy dash, heat . In short, you'll get more rear grip by lowering the rear RC. And, some aspects of chassis setup build on other aspects. As far as I know, all of the iRacing asphalt cars are adjusted the same way. This guide is very similar to the NASCAR Racing setup guide. Unfortunately, most rule books that I have dealt with are very vague. Modified Cars for Sale IMCA Asphalt modified Setup Asphalt Modified Race Cars Asphalt Street Stock Setup Asphalt modified for Sale Asphalt modified Set Up The ULTIMATE Racing Car Chassis Setup Guide and 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. This variety grows best when grown alone and can reach up to 12 feet tall. Prices listed are with a frame swap option. The car madracing 19 has for sale has all of these things done to it. Caster. Every year, Jack asks drivers for input regarding rules changes for the following year. Both of these ICs act like hard points of resistance to lateral movement of the chassis.
Understanding Caster and Camber for Suspension Setup - Speedway Motors Adjust the cross weight for more extreme conditions or different circumstances. Adjust all four spring perch offsets to change the cross weight. ! 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. Administrator. Forum Actions: Forum Statistics: Threads: 1;
Johnson Chassis Inc Smaller gains can come later on after the more important aspects of setup are resolved. 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.
Speed and how it is made - Bsbgofast.com ; this was with all four stock trailing arms. We got away from running thatmuch cross as the car was pushy. The problem on dirt is the high rear roll center. If the same stiffly shocked corner is in rebound, less of the overall load will be retained by that corner, and its diagonal corner as well, during the rebound cycle only. You need to locate the moment correctly, and the cambers . The artistry comes in when you actually do it. by RonL Fri Jan 02, 2015 12:36 am, Post I think that since SAS is more of a momentum track and the metric cars may not have such a disadvantage. Steering Geometry See All - Best Selling. SUCH AS SPRINGS, SHOCKS, SWAYBARS ETC. The Camaro's we were running against could have weight jacks and tubular uppers as well so it was pretty even. 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. 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. The more third link angle you have, the more antisquat there is. We took all the cross out like Lee and trailed the RR and did not use much stagger. in Exotic Race Cars on a Real RaceTrack, Copyright 2000-2023
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. Alignment The cross weight adjustments should work on all dirt cars except the Sprint Cars. 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. Long exposure, Nikon D810. by RonL Fri Jul 17, 2015 12:02 am, Powered by phpBB Forum Software phpBB Limited, Shocks, Springs, Brakes, Frame, Body Work, etc. Billy Becka's 29 car, as he mentioned, was fast at SAS, but THR and SAS are very different beasts. 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 . These are the general rules unless you are trying to "tie down" a corner. If the car's center of gravity was say 16.5 inches (around average for an asphalt car that has been lowered), there would only be a 2-inch moment arm to try to roll the car.
Chassis - Port City Race Cars The metric cars can use different size spring spacers as well, so the playing field is already level in that respect. LIT-A950700016 80275NDP Ford Mustang Cobra HE.
Metric Rearend Suspension Video from a Street Stock It is this sliding scale situation that determines the stiffness of your front end. 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. Your close on the springs if the car is 3200. 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.
Setup & Tech Info - Jet Racing Inc The bottom line is that at mid-turn, each end will want to roll to its own degree of angle. Less fuel equals faster speeds. To sort of act as a pull bar? We had LF 1000, RF1300, LR 200, RR200. Taipei, Taiwan. Ackermann is easily checked by using a laser system or strings. I remember qualifying times in the 19.6 to 19.7 range. Ive read alot of stuff, some of it usefull some of it crazy. Remember that drag is an important aspect of aero design. 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. My name is Rodney Arndt, I have an associates degree in automotive technology. 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. Off-centered adjusters can be very inconsistent. Once the setup has been balanced and the shocks are decided upon, we need to evaluate the turn-entry characteristics and the fact that brake bias is a very important influence at this segment of the track. That's why I asked about weight jacks in the original post. Chassis. I feel the metrics should definitely be allowed panhard bars and rear weight jacks. 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. 30 day Money Back Guarantee!- If you don't learn something that helps you go faster, email me and I will refund 100% of your money backAfter payment you will be directed to a download page. Your email address will not be published. Make small adjustments, about one half of one percent. If there is, try to adjust the brake bias to eliminate the adverse condition. 122. If the LR tire is too cool, then the RR spring is too stiff. Ive made the brackets on the rear housing (lowers) longer with trailing arm mounts that have 3 .
And, it must be economically applied. Bump Springs Tech. This configuration is common in General Motors cars built in and around . Shocks affect the motion of the corners of the car and therefore the placement of loads during transitional periods. Its not necessary unless your own a road course. What do I do if the car is loose or tight throughout the corner? 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
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. 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. The very last thing you need to worry about is your aero package. If the car is tight under throttle, or driving off the left rear, invert the spring perch offset adjustment procedure above. 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. We also discuss how to identify the cause and the best treatments for each type of pest. I want to try a reverse spring set up on a hobby stock car that am helping a friends with its a 3400 lbs metric car all stock. See all 6 photos. 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. Those cars are coming around becoming competitive. 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. We always start with the front end geometry on any race car. 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 don't get too many reports of continual, repeated wins and successes. I'm curious what everyone's thoughts are on what it would take to allow the metric cars to be competitive without giving them too much. On the a street stock what size spring would be better to run on the rear. 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. We make it with either steel panels, or aluminium panels. Yea how many years ago a1?
Street stock spring ? | STLRacing.com Conversely, if the car feels tight throughout the corner, raise both track bars. 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. 358101 FAB . Ive raise the center section of the chassis where the the upper mounts attach by 3". I built the car not the engine . Home. This 7 shock kit includes shocks for every track condition with tips to help fine tune your racecar. Quick view. rolling chassis. Compare that to an asphalt Late Model car with a rear Panhard or J-bar and a 10-inch rear RC height and a 15.5 inch CG height. 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. I never felt good about cheating but when everyone does you need an even playing field. There are a lot of things you can do to improve handling. 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. Not sure how much traffic this post will get here. 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. SR10 Dirt Oval RTR. Samuel232. All this really depends mostly on the track and maybe the car youre driving. 5.
Taipei City Stock Photos, Pictures & Royalty-Free Images - iStock Yes, I get inquiries about how to apply the BBSS setups to both of these types of cars. With so many different combinations of possibilities it leaves us with literally thousands of possible chassis combinations to choose from.
Race car suspension Class | Page 47 | Physics Forums Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) The fruits of this plant are large and can weigh over one pound. Since the spring promotes rebound and resists compression as inherent properties, then the shock rate of compression control must be less than the rate of rebound control. I think I'll make a proposal along these lines.
Asphalt Street Stocks & Parts Only - Facebook If this component on your car is not right, then the whole car will suffer, no matter what else you do. Track Tools. Plan out changes that could help improve performance or durability. Good luck and keep the rubber side down!!! Thats the theory and the science anyway. Each setup has a life cycle or a time frame in which it will work before we run into a stopping point with it. Hardcore Package - $5,700 (2023 Pricing) *Some components included in the package are not shown in picture below*. I have always believed in priorities because you can make gains faster when you solve the high priorities problems first. 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. First of all, the design is intended to solve several problems. Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment. We are at a crossroads at this point in time with setup technology in asphalt racing. And, of course, Terry chose to park it. Sometimes weather differences will require changes to either tighten or loosen the setup. Not sure if there is a standard for metric cars but I havent found any specs on it. I can agree to use a LR instead RR. The car is loose mid to exit with not foward drive. Has boxed lowers, adjustable uppers , stock springs and shock. This setup guide also has new information based on the changes that go along with the new version of the sim. Ill also answer a couple of common questions: These changes are applicable to all asphalt oval cars. Fox80. There are two main ways to tighten or loosen the car.
Street Stock - (WISSOTA TYPE) - Medieval Chassis The influence of the location of the front MC can be compared to a sliding scale. Can a 3-link be used effectively without weight jacks? Cvracer5. BBC Truck Header 2 1/4in X 4in Fender Well Schoenfeld 2348 . Keep It Fast and Cheap. 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. 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/. var emailHost = "hotmail.com"
But there is still some changes to be made from track to track. Johnny likes a softer feeling car, front and back. All customers interested in purchasing, repairing, or setting up a Howe-Eddy modified should contact Travis Eddy at Eddy Performance (989) 948-8005. Strictly asphalt street stocks and parts. Basically, if the suspension mounting points must remain stock, the leaf spring cars will dominate (at least on ashpalt.). I ran a street stock/sportsman from 1995 to 2000 with a metric frame. We ran the car with a lot softer set up than that.
PDF By Bob Bolles, Circle Track Magazine - Longacre Racing Play the all new "DANNY SIMKINS - 11 STRAIGHT - trivia game." Most Metric cars I've evaluated have rear RC's up around 14.5 inches off the ground. I understand not wanting to share to much especially if your a racer, but who or where else can I gain info on this? Maybe not on little tires either. I'd think that without them you'd at the very least need to allow some sort of spring adjuster. On a metric four-link car, the four control arms determine the rear moment center height too. Online: $349.99. Afco Racing Products. Brian Wise. 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. It is a low acid tomato with a unique flavor that has been described as sweet, yet slightly tangy. Long gone are the days of saying that the MC is not important. 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. Full of fuel, everything done, full of oil, lead bolted down. var contact = "Contact Us"
There are some different lower a-arms and front suspension things to make them even better.
Victory Circle - West Coast asphalt and dirt chassis design and Moving the pull-bar or just the third link to the left increases the loading on the LR tire during acceleration. It's the average height of the instant centers that determine the roll center height.
Circle Track FAQs - QA1 Check your PM's. Antisquat results from the third link trying to straighten out, or become more horizontal as the car accelerates and the rear end desires to rotate. LIT-719 80292 C7 Corvette Radiator. I thought these were street STOCKS? Pavement Modifieds. 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. 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. Each suspension system desires to do its own thing when lateral forces are introduced from the car going through the turns. Heck, if you are paying 20 bucks to get into the pits you might . Chassis Tuning 101 Murfdogg. Then should I use brakes more? How to Raise Cross Weight in iRacing Setup.
Metric Chassis Roll Centers - Lone Star Speedzone Forums 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. . Greetings guys, Im new to the site.
Street Stock Setup Manual Thank you, that forum is a wealth of information. Send your request to bob.bolles@sorc.com. Anderson , IN. Stock cars using the metric-style four-link rear suspension usually need to do this just to achieve a balanced setup with the high rear moment centers in those cars.