Dirt late model spring setup

Dirt late model spring setup. (needs more traction) (1) Right front spring is to soft use a harder spring. Use the technical guides and manuals here in our Tech Info section to give you the insight, explanation and guidance to achieve the ultimate Feb 6, 2024 · Spring Rate: This refers to the stiffness of the springs in the suspension system. Side to side 2in frame 16 1/2 1 3/4 Frame 16 3/4. Dirt Late Model Tuning Help – Racingjunk Forums. 25” center to center. Join Us. ” The concept quickly bled down into the short track asphalt, and in recent years the setup has become increasingly popular in Dirt Late Models and sports car racing series. The live class took place January 16-17, 2021. Reading through it carefully and thoughtfully will provide you with a quick foundation on the physics of iRacing and stock car racing in general. Make sure the shock and spring assembly are not rubbing on the frame. Adjust the cross weight for more extreme conditions or different circumstances. Car needs body and some deck. This allows you to change springs to any rate because the center to center number at 18. Increase the rear stagger. Now Available. Buy Now $349. LR 200 or stack 200 x12in/400x4in RR 250. com is an educational website that focuses on teaching and showing racers and race car enthusiasts how to work on and how to improve their cars and racing program. As a general rule, the most movement you’ll ever be able to use is 1-1/2" with an average between 1/2" and 1". 2019 Setup Book. Back to top. Decrease RF compression 2. How 4-bars work, what each change does and tips for car handling. This approach is compact and easy to tune. ) Increase Left Trailing Arm (Will loosen car on exit. Less fuel equals faster speeds. Generally, when the car is close, an 1/8" adjustment (1-1/2 turns) can be felt. 3. Reply #6 - 03/03/12 at 5:24pm. 2,287 likes · 13 talking about this. Subscribed. Looking for same travel, just get there easier and stick RR beyond that travel. Jun 1, 2021 · “There’s only so much available traction on a dirt race track,” said Steve Francis of the Lucas Oil Late Model Dirt Series, Batavia, Ohio. front suspension and steering, rear suspension, adjusting the 4-link for all conditions, panhard bar adjustment, using a dummy shock, clamp brackets, right rear double spring setup, tuning with 5th and 6th coils, tires – selecting and grooving, DLM handling dynamics, chassis tuning with shocks, chassis Dec 26, 2021 · This is my take on tuning a four-link chassis as we find on dirt late models and dirt modifieds. Increase 5th Coil shock rebound TIGHT ON ENTRY: 1. Load the setup in the iRacing simulation under Garage – My Nov 17, 2019 · This video explains what is left rear drop in a dirt late model race car. Be sure to check side clearance on torque arm to . In this video Jason Wilkey walks us through Pull Bar options and adjustments using a WEHRS UltraForce Smash Machine. LIT-721 80293NDP 2009-2015 Cadillac CTS-V HE. Asphalt Late Model 1/18. 2021 Setup Book (Chassis #2057 and Up) 2020 Setup Book (Chassis #2048 and Up) 2020 Setup Book. The first section has fillable content booxes for all the common items you need to log for your dirt late model setup. Aug 1, 2004 · Let's say we have a touring Late Model car that has 300-pound springs in the frontend. 5 or 2" (from ride height) compressed load the same with the increased spring rate. Decrease left rear spring rate. Decent initial rule of thumb, keep RR 1. Mar 3, 2008 · To adjust for this, set the chassis on a flat surface, turn the wheels left the amount you use on the track, and apply slight pressure on the left side of the chassis (pushing to the outside). For this kind of banking, we would use a stiffer RF spring and a stiffer LR spring. Winning takes making the right decisions in the shop the workings of a “Dual Stage” spring assembly. Increase the Rear Brake Bias. Video shows easy way to check drop and things that may cause problems is incorrect Jul 1, 2011 · The parallel four-link rear suspension is common to Dirt Late Model, Dirt Modified stock cars, and Sprint Cars. SHOCKS & SPRINGS SET-UP'S Adjustment with Shocks (LR At Late Model Set-Up) Always try to start with the track bars first. 4 LINK DIRT SUSPENSION. TUNING WITH SHOCKS (LR BEHIND LATE MODEL SET-UP) LOOSE ON ENTRY: 1. The outer spring starts compressing the last 1” of travel of the right front. So, they’re able to go to coil bind and not take a set. TECHNICAL INFO. Use a smaller stabilizer bar. Get comfortable and confident first, then worry about optimizing damping. No other racing spring manufacturer does this. The inner spring engages the last 1/4” to 3/8” of travel. Landrum springs have the closest tolerances in the industry and are tested to be within 2% of specification. This will help your steering tremendously. The Dirt Forum. 25” will always be 606 pounds. com is an educational website that focuses on teaching and showing Oct 1, 2008 · Racing our Project Dirt Late Model. Otise. Controls chassis roll more efficiently--high rear moment center and wide spring base. Available spring rates of 75lb/ft up to 125lb/ft help dial in quarter midget suspension setup for the best track conditions to the worst. OLap File - 1 . Increase the LF Spring Rate. Controls axle This guide was published by Matt Holden in 2010 and almost all of it still applies today. The less fuel in the tank the tighter the chassis will become. RPY File - Free Driving Tutorial Video On YouTube - Top Of The Line 24/7 Customer Support These setup packs are for INDIVIDUAL USE ONLY. 13 Series (Twin Tube)(Oil) 14 Series (Twin Tube)(Oil) 19 Series (Twin Tube)(Oil) AFCO Shock Accessories; Crate Series (Monotube)(Gas) In this must see video for any crate racer Tader Masters walks us through set-up for Crate Late Models. RaceKnowHow. We only care about the MC location after the car has taken the attitude of dive and roll in the turns. (2) You need to add more crossweight - by adding a round to the right front spring (add weight to the left rear tire). For some time now, we have wanted to have a Dirt Late Model project car, but the right situation hasn't come along-until now. Buyer's Guide That spring setup was: LF = 450, RF = 500, LR = 550 (220 equivalent), and RR = 650 (234 Jun 11, 2018 · The basic load numbers they give you is just like the basic set of old with scaling. If the car feels loose on corner entry, lower the left track bar. They may have more then one set up for different tracks. How to Open the Setups. Got questions? Wondering what all those numbers in the setup file names mean? Click. May 9, 2012 · Phase 1 (going into the turn) If the vehicle is loose at turn entry then. There are four basic designs of leaf spring that are used in stock car racing. It may be an affront to most dirt racers to say that technological changes that have taken place in Sep 2, 2020 · Usually as you add rubber to RR you decrease Ride Height load. 2": 1600. There is no making up for a lack of racing knowledge given today’s level of competition. Sep 1, 2008 · This speedway is a medium-banked track that I would estimate to be around 12 to 14 degrees. While it is stripped down this off season for that, Should we move any of the "heavy" components around to make using the Crate motor easier to get Jul 28, 2012 · From the rocket book baseline setup. • Lower panhard bar on pinion mount. 2023 Setup Book. Your best bet is to try making adjustments and testing, working from a baseline until you find the optimum setup. duckhnter83. ) So your loads would look like: RH: 800. More cross = more vulnerable = tighter car. Touching the wall with the right rear might just suck you in. Use a Smaller Front Stabilizer Bar. Re: reverse spring split. • Raise left side frame mounted panhard bar on chassis. First Late Model. Com team headed back to the shop Drew and I got busy completing our homework. Landrum Quarter Midget Spring sizes feature 4-inch and 5-inch free height with a 1. GRT Late Example Default Car Set-Up Sheet GRT Late Model Signature Series Car Set-Up Sheet GRT Modified Regular Car Set-Up Sheet (2012 toward Current Cars) GMT Modified Standard Car Set-Up Roll (2011 & Previous Cars) GRT B-Mod Set-Up Sheet Modified Brake Line Diagram . The Mono-Leaf Spring: The mono-leaf spring is usually characterized by being a low %PDF-1. Decrease panhard bar split by raising the left side. SHOCKS & SPRINGS SET-UP'S Tuning with Shocks (LR Behind Late Model Set-Up) Let's use two of the most popular types of dirt car-a touring Late Model and a metric-style Hobby Stock car. May 22, 2019 · Option A is a: 400lb/in spring with no bump, which you would have to wind down 2 inches to get your ride height number (800#), then traveling 4" from there would get you to 2400# max load (800 ride height + (400lb spring)x (4in of travel)=2400. Dirt Late Model Set Up, Tire Grooving, 4-link Tuning Info. LOOSEN CAR ON CORNER EXIT • Decrease left rear bite • Soften left rear spring. A simple 6" x 9" size is large enough to hold all the content and setup information you need but small enough to throw in the top of your tool box and be at hand when ever you need it. for list of new features in Version 4. Split Valves, Compression, Rebound—It Doesn’t Mean Aug 1, 2008 · Circle Track Takes On A New Dirt LM Project. Save these setup files to C:\Documents\iRacing\setups\dirtlatemodel 358\. Increase stagger. Aug 11, 2014 · Spring Truth #3: Front weight is a measurement of the car’s momentum in a straight line. However, a too stiff setup can lead to a loss of traction on bumpy or uneven surfaces. The 2-day class is broken down section by section into 117 videos. Controls rear end wrap-up 4. Any and all things relating to Dirt Late Model racing, setups, advice, questions and answers to help out the Dirt Late Model Feb 1, 2021 · Penske’s approach to maximizing stability in dirt late model racing focuses on making it easier for racers to adjust the spring rate with an air shock design, according to Lambert. The original purpose for using the four-link suspension was to have a suspension Feb 5, 2024 · Josh Putnam raced to the $10,053 Schaeffer’s Oil Spring Nationals Super Late Mod Jimmy Owens raced to the $10,000 Lucas Oil Late Model Dirt Series (LOLMDS) victo Jul 28, 2012 · From the rocket book baseline setup. As the car rolls and the chassis changes Apr 6, 2023 · iRacing Dirt Late Model Setup Matrix. . Maybe try a 100#, 16" spring for the l/r, it should give you foward bite. Excessive front toe in will make a car turn into a corner quicker, & may create a loose condition. To be more specific, for a touring dirt late model, car builders have been experimenting with Moment Centers in the range of 8 to 16 inches left of centerline when the car is in the middle of the turns. 625” ID. 0-1 stagger front 4in rear. He also talks about why and where to use this kind of set-up. With the engine out of the car it is easy to see how the steering shaft is routed. Nov 29, 2020 · Basic Crate Late Model Setup. This time we're going to talk all about s May 12, 2020 · If you are on a Late Model and the given number is 606 @ 18. 550 Bump spring with a 200 pound 14 inch spring. Videos are Increasing spring preload (LR) The amount of adjustment depends on track conditions and experience. It provides a lot of detail in explaining what each setup component in the car actually does. Our mission at the RaceWise Dirt Track Chassis School is simple: help racers of late model, modified, and street stock-type dirt racecars improve their racing program. Depending on the shock design, the way it is mounted will change the shock curve and function dramatically. Decrease the RF Spring Rate. We have a team in Dream Feb 1, 2013 · This helps get the chassis in the proper attitude for turn entry. This might be a little different than you are used to. Now you can be as soft as possible, as long as possible, without bottoming out on the cross member. Decrease upper 3rd link angle on rear end. All tips learned in the Pro Late Model will help you in the Super Late Computer Program to Simulate, Setup, Predict and Analyze Race Car Performance (including Late Models, Modifieds, Sprint Cars, Midgets, Go Carts, etc. Our layout (in Jan 24, 2023 · 18. Quarter Midget Spring Sizes. Asphalt Modified 1/18. Right Front: Combine one each of AFCO’s specially designed 26000-2 series primary and 26000-3 series secondary springs on your right front coil-over. (3) Change left front spring to a softer spring. proshocks. When using stacked springs on a Dirt Late Model, this allows the car to run on a very soft spring rate on entry of the turn, until the heavier rate is needed through the middle and exit off the turn. Eastern Dirt Modified 1/18. 7 %âãÏÓ 256 0 obj > endobj xref 256 31 0000000016 00000 n 0000001931 00000 n 0000002119 00000 n 0000002599 00000 n 0000003055 00000 n 0000003092 00000 n 0000003206 00000 n 0000003470 00000 n 0000003974 00000 n 0000004711 00000 n 0000005399 00000 n 0000006142 00000 n 0000006910 00000 n 0000007544 00000 n 0000008140 00000 n 0000008734 00000 n 0000009184 00000 n 0000009713 00000 n Jan 1, 2014 · DIRT LATE MODEL RACE CAR COMPLETE CHASSIS SET UP & TECHNOLOGY MANUAL - COVERING: Front & Rear Suspension, Steering, Adjusting 4-Link, Panhard Bar Adjustment, Brackets, Right Rear Double Spring Adjustment, 5th & 6th Coils, Tires A complete guide to setting up and adjusting the Dirt Late Model and 4-link suspension. He also talks about gear choice and much more. What used to be standard setups are a thing of the past for the top teams competing in dirt late models, modified, and even the stock classes. Each setup is encrypted with its own personal ID number Feb 19, 2007 · Dirt teams that have softened the front springs to as low as 600 pounds on Street Stock cars and 300 to 350 pounds on coilover-type Late Model cars have found those rates to be too soft when the Oct 3, 2020 · This is the ultimate dirt late model setup book with customised fillable setup sheets. • Stiffen left front spring. CT06 21730 Hanover Ave. 128. Increase the Rear Tire Stagger. Increase RR compression 5. Compression or rebound will affect how the car handles and tire wear. He goes over what certain changes do and how to make sure you get yours dialed in correctly. Jun 1, 2011 · The trend in Dirt Late Model racing has been to force the front ends lower with softer springs and then to a higher-rate spring to control the roughness of the track. LIT-722 C7 Z06 Corvette Heat Exchanger 80294NDP. #iracing #schoolofsimracingIf you're having a hard time setting up the Dirt Late Model in iRacing since they put on the new tire model, this is for you!Get t Aug 30, 2009 · Dirt Late Model teams are running much stiffer right rear springs than ever before and seeing a lot of success. QA1 Motorsports Dept. In this video we visit with Mike Nuchols at Warrior Race Cars to go over digressive LR set-up and learn the changes and scenarios that we use it in. Posts: 982. 2K subscribers. Mar 1, 2004 · Let's take a look at the different elements to work with on a dirt car. Any help/advice is greatly appreciated. 2018 Setup Book (Chassis #2023 and Up) Apr 4, 2022 · Make sure your shocks are mounted properly. Try Premier Racing Setups for this car. 12K views 1 year ago. News. Mar 1, 2013 · We recently spent some time in the race shop of Clint Bowyer Racing, which fields two entries in the Lucas Oil Late Model Dirt Series. Asphalt teams who are trying the BBSS setups tend to overdo the stiffening of the RR The body on a Late Model is much wider than a Sprint Car, so give yourself plenty of space between the wall. 7 – April 6, 2023. 0 PLUS (new, more advanced version) (Mar 2021). Our RE Suspension high performance racing shocks, springs and bump stops give dirt and asphalt racing cars the control, boost and edge to maximize the skills of the driver and pit crew. com is an educational website that focuses on teaching Racing Shock Absorber basics runs through some of the basics of shock absorber design, internal components, and how they work. Decrease RR compression 3. 2024 Setup Book. LIT-719 80292 C7 Corvette Radiator. Conversely, if the car feels tight throughout the corner, raise both track bars. Dirt Track Tech. Set-up Information NOTE: This setup information applies directly to dirt late model race cars and, in general, to other types. The original purpose for using the four-link suspension was to have a suspension Builder | Julian Valadez Car | Wingless Micro Sprint Setups Included: - 1 Slick Qualifying Setup - 1 Tacky Qualifying Setup - 1 Slick Race Setup - 1 Tacky Race Setup - 1 . There An example is a touring Late Model car with a RF lower control arm length of 18 1/2 inches and a LF lower control arm length of 15 1/2 inches with equal ball-joint-to-spring-mount distances of 2 1 Mar 6, 2023 · This Playlist has videos on how to tune rear 4-link dirt late model suspension. He talks about the softer LR and how to run it in your set-up. We prove it with a dyno sheet provided with each spring showing the performance of the spring as it is compressed. For instance, do Step 1 if the track is a little slick, then add Step 2 if it is typical dry-slick and add Step 3 if it is like racing on ice. Racing our Project Dirt Late Model. ) Decrease Right Trailing Arm (Will loosen car on exit. If you are racing a dirt late model and are struggling getting car handling every time you go race. 1": 1200. In this requested video Jason Wilkey of One Seven Motorsports talks about the Left Rear Spring set-up on a Northern Sport Mod or B-Mod class. Increase LR compression (if LR is slamming down) 3. Supports the chassis weight 2. Apr 9, 2013 · It would be nice to have a punch-list of things that I can do depending on the severity of the track conditions. The body’s spherical bearing should be free, not bound up, and able to move easily. Get sphereical bearings for the rears of the trailing arms so when it rolls it won't bind up. More front weight = more momentum = push feeling into/out of turns. 20 gal fuel. look at the wheels and adjust camber so the contact patch is flat on the table. Reviews. Increase RF compression 2. Raise the Rear Panhard Bar Up on both sides. Increase the Caster. LIT-A950700006 80249N Ford F-150 LightningHarley HE. “And because we need to travel these cars so far, packaging can become an issue with a stacked setup. LF 10 rf 12. LF 500 550 slick. Although they are the oldest, they seem to be the least understood. Increase gas pressure in LR shock (if LR is slamming down) 4. LIT-716 80283NDP ZL1 Camaro Heat Exchanger. A higher spring rate results in a stiffer suspension, which may be beneficial on smoother, faster tracks, as it reduces body roll and maintains stability. 250” than that spring is compressed to 606 pounds of rate when the shock is 18. BASIC HANDLING TIPS - Let Port City Race Cars get you you to finish! Feb 14, 2006 · The leaf does the following: 1. LR 6 RR 10 psi. Leaf Springs. A friend who has a Rocket just got a new set up shocks smashed and ready to put on - 175 RF and 300lbs of extended load on the LR. With notes in hand we starting making our fina Dirt Late Model Setup Tech Q&A. 2022 Setup Book. Do not attempt to open the setup file in Windows. 2010 Rayburn Overrail 4 bar base set up: jckelly80: 0: Late Model Tech. Raise the panhard bar on both sides. Directly targeting dirt late model competitors, this seminar covers setup thoughts and theories, and how to both approach new Feb 13, 2024 · If you like this video, subscribe to this channel and ring the bell to get notified every time I upload a new video. Jun 1, 2002 · Lawrenceville, GA 30043 770/995-6300 www. com. Apr 8, 2021 · After Tader and the RaceKnowHow. He also talks about changes to make during the night and where to start on a crate car. SUPER LATE MODEL Balancing tire spin and yaw is the key to maximizing lap times in the Super Late Model. This is a tall order but it Shaw Race Cars has been a huge name in Modified Racing for decades. Running 175 RF you need to have some more extended load to make up for that RF not pushing back on the LR. A subscription is required to access those setups. Rev. “Pretty much across the board, teams de-tune their engines after qualifying with restrictor plates and that type of thing in order to keep the tires hooked up to the race track. ) on Oval Track. The double bump spring allows you to have a dual stage bump spring rate, to keep the front end down. • Raise left side ride heights (rock up) • Soften 6th coil spring. Dirt Oval Setup Troubleshooting Guide. Leaf springs possess many desirable suspension features, such as dampening, forward bite, roll over steer, high anti-squat percentage, and high lateral stiffness. Superior engineering and manufacturing techniques ensure the tightest spring tolerance. BLap File - 1 . 0 (standard) (Mar 2021). A typical setup might be Dirt car setup is undergoing a change, and has been for about five years now. com is an educational website that focuses on teaching and showing racers and race car Jul 1, 2011 · Four Basic Designs. The Guy I help traded a Mod for a Late model (2014 Mastersbilt) and we are trying Crate Late racing for the first time. 15. We provide help through education. Drivers Jonathan Davenport and Jared Landers are doing well Aug 15, 2018 · 4-link suspension information. Watch, Rewind, and Watch Again. Sprint Car 1/18. 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. TIGHTEN CAR ON CORNER ENTRY. ) (More J-Bar rake (split) produces more traction and more body roll. Dirt Late Model Coil Over Springs are built to operate at maximum stress levels without losing free height. GRT Late Model Standard Car Set-Up Sheet GRT Late Model Signature Series Car Set-Up Sheet GRT Modified Standard Car Set-Up Sheet (2012 to Current Cars) GRT Modified Standard Car Set-Up Sheet (2011 & Previous Cars) GRT B-Mod Set-Up Sheet Modified Brake Line Diagram . Late Model Tech. We will make some changes to the previous spring setup. LIT-717 80284 Raptor with Whipple. Leaf springs are the oldest form of suspension in racing. Try 1000 r/f, 1050 l/f, get 7 to 8 degrees pinion angle. iRacing setups for the Dirt Super Late Model 438 at Knoxville Raceway are available for free download on these. Decrease both Front Spring Rates. Decrease LR trailing arm angle. Lakeville, MN 55044 800/721-7761. The stacked spring concept is being used on the left rear, right front and sometimes on the right rear to fine tune the race car. LOOSEN CAR ON CORNER ENTRY. Modified 1/18. Strickler prefers not to run a steering Aug 10, 2011 · Most Dirt Late Model cars use the rack systems, so we don't have the convenience of only having to improve our Ackermann effect in one direction, it must be correct for left or right turning of Jul 1, 2011 · The parallel four-link rear suspension is common to Dirt Late Model, Dirt Modified stock cars, and Sprint Cars. If the car feels loose throughout the corner, lower both track bars evenly. Decrease the Pre-Load on the Stabilizer Bar. LIT-718 80291 1997 - 2004 Mustang Radiator. This is more dirt track racing Jan 1, 2004 · A complete guide to setting up and adjusting the Dirt Late Model and 4-link suspension. Midget 1/18. Decrease RR Tire Pressure (Tightens car throughout turn. Jan 21, 2016 · 1698 Midwest Blvd, Indianapolis, IN 46214; 317-271-7100; Search. spring,” Enders added. Proven dirt late model coil over springs performance. 0 0 items Apr 5, 2008 · Phase 1 (going into the turn) If the vehicle is loose at turn entry then. “The shock itself works like any normal damper, but then it has an external body that seals and creates an air chamber that we use as the spring,” he explained. Basically static load numbers is the same as scaling the car, instead of using a ride height to set the car you use a load number to set the ride hieght. Jul 19, 2021 · To compensate for really soft RF's. They are: 1. For the most part, we'll present information about the Late Model designs, but much information can be utilized by all dirt Late Model Chassis Setups. Rf 400 375 350 slick. Spring Truth #5: Left side weight is a When using stacked springs on a Dirt Late Model, this allows the car to run on a very soft spring rate on entry of the turn, until the heavier rate is needed through the middle and exit off the turn. If we install a 111/42-inch sway bar, the effect on reducing body roll is just the same as if we added 1,237 Dec 27, 2021 · You could experiment with added preload, increase spring rates, or try a spring rubber. Spring Truth #4: Cross weight is a measurement of the car’s vulnerability to centripetal forces. sp nr ph qp nr kb yu rx vj bf