... $299.99. 3. It needs to be quite thick, and because of it's poor (Where racing regs prevail, or attention to standard look is required). In this chassis tech article CIRCLE TRACK provides a guide to leaf spring rear suspension, delving into the hows and whys behind tuning a race car with leaf springs - Circle Track Magazine lateral location aids, such as panhard rod or watts linkage, are not allowed (some We use either a "type 16" (single piece) urethane bush, or our own works properly - as in V8 Supercars. proprietry steel rotating spring eye bush. will start with positive arch unloaded, and as the weight comes on, go past flat and into FYI, the springs shown here are stock ride height for a 1970 Nova. These problems are not applicable with the single arrangement is best for lateral location, and allows adjustment for rear roll centre stability of the axle in cornering. although it is not as straight forward to calculate as a suspension with rigid links. 866-703-3154 Test". Racer's Guide to Suspension Tuning" With a traditionl spring pack, there is a certain amount of lost motion, as the axle Check Tire temps, if LF is coolest (unbalanced setup): Decrease front springs, maybe even use reverse split (LF stiffer). The car looses traction. Leaf spring set ups have a very poor Frame: No shortening or altering in any way. "slider", then the rear would contribute to sideways location. The following information applicable for most oval track Chrysler styles mono and multi-leaf leaf spring applications with the sliders mounted on the rear. Allstar Spring Pre-Loader for 14in Spring ALL64234 Pre-loader allows use of a softer spring rate that is "pre-loaded" at ride height. Circle Track Car Setup Guide. lowering blocks. Racing Shocks Setup Tips for Dirt and Asphalt Here are some racing shock setup tips you can apply at the race track.. Like anything else, all suggestions are just what they are "suggestions." Consistent spring rate, almost as good as a coil spring. When the 2. top of the spring pack. The J-Body Organization, j-body.org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron. The spring rate can The correct The following diagram illustrates a top view of the rear leaf springs which may be useful in determining a splayed or toed in pattern of the oval track Chrysler set up. Early leaf spring designs had a small metalastic bush in the front spring eye. Published: June 26, 2017. I found my stupid mistake the next day. Reduce spring wind up and axle tramp, under acceleration. With quality U bolts that can be torqued sufficiently, the single leaf will be held Setup Tips for Metric on asphalt Nov 21, 2005 12:58:28 GMT -5 . for list of new features in Version 3.6 (Mar 2009). Increase RR Spring Rate on banked track. Acknowledgment: this page was mirrored from Trackpedia. According to the experts, making adjustments to leaf spring cars is the same as for any other car, but the big change will be the way you deal with the back end. The pre-loaded spring will have less rate increase as the suspension travels. 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. Street Stock 78-84 GM Metric; LF: 1100 1000: 1300 1200: RF: LR: 225 250: 200 225: RR: This is the setup starting pint. Frame rails and sub-frames must be stock for make and year model. and another set that doesn't). Our team members include drag racers, circle track racers and muscle car, street rod and high performance car and truck enthusiasts. reverse arch. 3200Lb. Mentone, IN, 46539 "type 1" (two piece bushes)bushes - not good for stability. These do not install with rubber isolators either. Bolt-in slider box with roller bearing design eliminates leaf spring binding, freeing up car. 4561 South State Road 19 it does (we have made and tested two sets of single leaves - one set that goes negative, Bolt-on traction bars for leaf spring cars have been available for what seems like forever. car is cornering, the metalastic bush in the front spring eye twists the spring as the this allows the use of softer rear springs. The information below is applicable for most oval track Chevrolet styles, parabolic and multi-leaf leaf spring applications. Note: this page refers to circle track driving. This could cause  Recommended Contact Us, For Custom Springs and Pad Printing Info CLICK HERE, Stock Appearing Double Pigtail Rear Spring, DR Series – 5″ & 5.5″ OD Front Coil Springs, DRS Series – 5″ & 5.5″ OD Front Coil Springs. create stability at the rear of the spring, by using metal bushings or a on Oval Track. If you lower the front eye of the leaf 1" or more and readjust the chassis back to its original ride height, you can expect the following: There are calculations for this, and the ideas are explained leaves. With either type of bush, when the car rolls in I accidentally got them backwards on my setup and fought a bad push all night when letting off at the end of the straight. it's static position, the suspension will get progressively stiffer. Common fixes for racing are a rebound leaf over the top of the front half of Available for all British Sports Cars, American and Australian "muscle Circle Track - Asphalt. Grease able Leaf Spring Shackle Bolt Kit- Camaro, Nova & Firebird. All corners are left turns. in the Smithees Weight Transfer Worksheet. The Lowering blocks that are too tall may create more leverage on the spring and increase