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?" Competitions are held on oval tracks . Maybe if Billy would be more specific about how he made his stock setup work we could learn even more. Add to Cart. See All - Best Selling. Roughly 8-10 degrees of third link angle is sufficient to promote antisquat and not hurt your corner entry. I'd think that without them you'd at the very least need to allow some sort of spring adjuster. Posted 5 weeks ago. If the car feels loose on corner entry, lower the left track bar.
Street Stock - (WISSOTA TYPE) - Medieval Chassis 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. Excessive front toe in will make a car turn into a corner quicker, & may create a loose condition. We have continually pressed these issues because of the extreme importance they have. 2.Now set toe out. The only component were worried about is
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.
Triangulated 4-Links: Make Your Stock Suspension Car Work 2. SUCH AS SPRINGS, SHOCKS, SWAYBARS ETC. Wheels. 1. I thought these were street STOCKS?
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STREET STOCK RACING CHEATS/TIPS? - Racingjunk Forums MSRP: $515.99. The Metric four-link suspension design is a bit different than most other rear suspensions.
Victory Circle - West Coast asphalt and dirt chassis design and 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. 321. The idea is to steer the car using different height holes for the rear control arm mounts. Stock Car Racing, NASCAR, Late Model, Sooner Speedway, Frost Racing Team, Race Links, Chevy Monte Carlo . Thats the theory and the science anyway. The Camaro's we were running against could have weight jacks and tubular uppers as well so it was pretty even. 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. This is very "old school" but when applied with a balanced setup, very effective. This develops more crossweight as the car squats on acceleration. If we can raise the upper front link mounts, we can lower the rear RC by lowering the upper IC. racing on asphalt. By Those cars are coming around becoming competitive. Tire Tools. Numerous car builders have come to realize the truth in the above statements.
PDF Harris Auto Racing - Race Cars with Attitude Street Stock Setups. Full of fuel, everything done, full of oil, lead bolted down.
Metric Street Stocks - Lone Star Speedzone Forums Estler's Mortgage Lifter is ideal for growing in northern climates due to its ability to withstand cooler temperatures better than other varieties. The left side suspension usually is designed with about half the angle of the right side in a conventional design. It just won't work. . My name is Rodney Arndt, I have an associates degree in automotive technology. 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. 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. And, it must be economically applied. When you enter the corner you are going to slow down. This is because of the construction using angled, from a top view, arms that converge to points called instant centers. LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. I never got to the experimenting stage on asphalt.
Asphalt circle track metric GM 4-link questions - Speed-Talk.com so I ran a .185 valving. Mod Four Tech. RAceman. Christjohn likes to get to the track early and get his car set up so he can watch the races. We showed you the 3-link rear end last week. Fast And Furious. . It's the average height of the instant centers that determine the roll center height. 10. Special Discount Cost- $24.95 !To download a copy of the E-book, simplyclick on the link below. Afco Racing Products. Get it right or don't get it at all. I see the times at CCMS are identical, THR the truck .5 sec quicker. This chassis utilizes our very popular double slotted strut style front clip.
METRIC CROW FOOT Other Items Online Auctions Brake Bias More has to be done to help the rear roll to match the front. 122. That was it. 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. 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. Jul 25, 2011. 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). S3 - Street Stock - USA $4.00; S3 - Street Stock - Lanier $4.00; S3 - Street Stock . Always try to start with the track bars first. Sep 1, 2009. Shown above is a gaming expo fair in Europe that held a contest for the best gamer team in a newly released 1st shooter game
First of all, the design is intended to solve several problems. Current Stock: Quantity: Decrease Quantity: Increase Quantity: Save to Wishlist. 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. Because these cars are being used in great numbers in the Stock classes of racing here in the U.S., we need to have a better understanding of the design and how it relates to the setups. That is the essence of shock technology related to handling influences. Lowering the rear RC and softening the RR spring will help solve the problem. Another way to gain bite that we have described in the past involves the use of a spring-loaded pull-bar that allows a certain amount of rear end rotation. If your vehicle of choice utilizes a McPherson strut style front suspension, then your 2 pivot points would be . 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. The Metric four-link suspension design is a bit different than most other rear suspensions. 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. Each suspension system desires to do its own thing when lateral forces are introduced from the car going through the turns. The cars with the stock metric 4 link all seem to go into a four wheel drift and are always loose on exit. THAT ARE CHEAP AND APPEAR STOCK. The very last thing you need to worry about is your aero package. Create New Wish List . Your statement that the 3-link is what the metrics needed to level the playing field is the type of feedback that tech. Here is a synopsis of how camber effects the handling of the chassis: Here are the diameter choices of the bar: The grill tape option is located under the drivetrain/aero tab within the garage menu. Drag the brake lightly as you enter the corner.
Bilstein Stock Car Shock Package-Metric Street Stock - Circle Track Supply Just trying to help someone.
Circle Track FAQs - QA1 Caster. How do I tighten or loosen the car on exit? ford 9' rear end w/disc brakes, stocks, springs, gauges just add motor and transmission and go racing. .220 to .235 would be fine without a quickner. On the metric chassis the roll centers, from what I understand are mainly influenced by ride height, because we can't change control arms ect. by RonL Fri Jan 02, 2015 12:36 am, Post We do not want to try to solve turn entry problems with the brake bias, we only need to make sure the car stays neutral in handling when the brakes are applied. Most guys that are fast there are fast everywhere. As the car is lowered, the rear RC will generally move down. That is the best description of the result of the dynamic force that influences each system. Cvracer5. 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. Good luck and keep the rubber side down!!! Ill also answer a couple of common questions: These changes are applicable to all asphalt oval cars. Ive read alot of stuff, some of it usefull some of it crazy. If the camaros are allowed adjustable rear shackles and are allowed to use different lowering blocks then they already have weight jacks and are allowed to adjusted rear roll center. Download the Jet Mod Scale & Setup Sheet Here! Join OSR Voice/Text Chat.
My Metric Front end setup | The Dirt Forum - ProBoards What do I do if the car is loose or tight throughout the corner? How do I tighten or loosen the car on entry? Alignment issues are defined as: A. rearend alignment, B. contact patch alignment, C. driveshaft to pinion/transmission alignment, and D. engine alignment.
Street Stocks Dur-A-Flex Racing . Christjohn has been racing street stocks for 13 years and has amassed 74 feature wins and 4 track championships. Bilstein has put together the ultimate Street Stock / Factory Stock Shock Package. Add to Cart. It depends on your rule book and it's enforcement. Sometimes weather differences will require changes to either tighten or loosen the setup. Loss of efficiency can rob power from the drivetrain due to the generation of vibrations and harmonics that are also damaging to the bearings. 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. The amount of difference you need is directly influenced by the installed motion ratio of the spring and the spring rate. CRA street stock. Welcome, Guest. The number one reason a car will be tight and not want to turn is because the front end is not designed properly. Eliminate most of your bumpsteer and Ackermann and install the correct steering ratio for your track that would suite the driver. It is this sliding scale situation that determines the stiffness of your front end. "One bad person can ruin it for everyone and that is just disrespectful", The
On a metric four-link car, the four control arms determine the rear moment center height too. how to adjust iRacing Sprint Car cross weight, go here. Manyof the ideas fit into the gray areas and some of them are outright cheating. There are two main ways to tighten or loosen the car. 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. 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. From NE Ohio to North Central Mississippi, everyone has their own ideas and preferences for what they will plant this year. If there is, try to adjust the brake bias to eliminate the adverse condition.
Speed and how it is made - Bsbgofast.com "ULTIMATE" Racing Car Chassis Setup Guide and Tutorial. They arent usually as good at spotting little modifications to every single part of the suspension. It costs just as much money, if not more, to run poorly, so you might as well learn to run well. Not sure how much traffic this post will get here. With all the negative BS that tends to permiate these boards these days, I thought maybe we could talk about something real and constructive. On a three-link rear suspension you should have the front of your right-side control arm higher than the rear mount by 1/3 of the total amount it will travel in the turns. 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. Splash = 2-3 gallons, 1/2 can = 5-6 gallons, 1 can = 11-12 gallons, 1 1/2 cans = 17-18 gallons, 2 cans = full tank. Setup Tips for Metric on asphalt racecheep. For warmer track temperatures, you are going to need to tighten the car. var contact = "Contact Us"
Chassis Setup Docs Hyper Racing. What I hear I feel is representative, although those who dive head first into the BBSS mix not because of a perceived and measured expectation of success but because of the "see monkey, do monkey" attitude, will never share what they are doing. It is not advantageous to have the rearend steer to the right at any time on asphalt. Much of the same information translates over to NASCAR Racing as well. 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. Johnny likes a softer feeling car, front and back. These are the general rules unless you are trying to "tie down" a corner. Some people add preload to the sway bar to make cross weight adjustments. You can use your stock metric pitman arm and . Hardcore Package - $5,700 (2023 Pricing) *Some components included in the package are not shown in picture below*.
Bolt on Torque Link Bracket - Afco - Pair How about just adding a panhard bar to the stock four-link setup? I dont really recommend it. Even when clear rules exist, the track officials are often reluctant to enforce them. #1. I guess the leaf cars could be allowed adjustable shackles in the rear to even that one out, sort-of. If you have any problem with the download, just email me, and I will email or Facebook you your file. Hobby Stock - (USRA/IMCA TYPE) Street Stock - (WISSOTA TYPE) Stock Car - (USRA/IMCA TYPE) Most often, these pivot points are the upper and lower ball joints in your double A-arm style suspension system. Here is an explanation of balance related to the dynamics of the race car. For a better experience, please enable JavaScript in your browser before proceeding.
Understanding corner weights | Articles | Grassroots Motorsports You can try bigger adjustments if you cant tell much difference in the handling after you make smaller adjustments. These components include the radiator, oil/transmission coolers, & brakes. We must develop ways to create more rear traction on acceleration only. We can run different sized lowering blocks, but that is not the same as a weight jack from a "quick adjustment" perspective. Pure Stock Tech. 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. 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. View Profile View Forum Posts Private Message Visit Homepage 02-25-2021, 09:09 AM. 5.
The surest way to get disqualified is to bolt an illegal part onto your car.
Setup Routine - JOES Racing Products jp. Great advice! LOL. I can agree to use a LR instead RR. Contact Us. 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. jp. 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. 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.