Johnson: The key to driving in the dry/slick is patience. We can observe cars that three-wheel off the turns and hear the throttle being cycled on and off. The best way to accomplish this rotation is by decreasing the amount of rear grip in relation to the front (or by increasing front grip in relation to the rear) at corner entryeither through driver input, car setup or both. And, contrary to what many would consider "common sense," the lighter the rear of the car is, the stiffer the rear springs need to be, especially the right rear spring. I wish I could find the discussion again. There are many local people that would be willing to install a cage for you. Hood and trunk lid/hatch must be securely fastened. Tires will be the most used/checked thing on your racecar. But we know that there is a lot more to racing than just having a great car. No racing, mud or snow tires. What happens if you gain camber up front while turning due to added casterthe entire body rolls more, and your rear outside tire is now leaning over even more (assuming you didn't make any changes out back). Frank: What's hard for them is when they get into something that has 850 horsepower, basically twice what they had before; they start picking up bad habits. If you're not an experienced welder you should find one. Tire selection should include a little more siping to help dissipate heat, as the tires will begin to spin slightly coming off the corners. The same goes for your racecar. Crate Late Model Setup - Crates On Dirt - MotorTrend You should set the front toe to 0" to 1/16" OUT. All doors must be securely welded or bolted. But we also have 2 local classes here in South Texas called the Texas Thunders, one runs on dirt, and the other one on asphalt. I'm racing a front wheel drive hatchback.. Its about 160bhp, weighs 900kilo's, uses Coilovers with only bump rate (no rebound), corner weights left to right are perfect, front to back is about 65/35, using a controlled 15" slick tyre! This is especially true on cars with MacPherson strut front suspensions. RCI and G force make some really good belt systems that are reasonably priced. Also read the old messages on this 4 cylinder tech link, they have a lot of guys who know both FWD and RWD 4 cyl cars,, so ask your question here or on the Spartan Speedway forums,, the michigan guys are alway willing to help. The camber/toe comments are dead-on though. That used to be the way to drive the cars, but as advanced as the setups are these days you've got to be smooth and drive the car around the track. A go-kart is a small tubular frame open-wheel vehicle that typically uses small 2-stroke or 4-stroke gasoline-powered engines. Jun 24. 7,800 rpm rev limit. Easy Steps to build a Pony or F.W.D. And unfortunately, that's going to slow you down. Yes, you do have to be careful and make sure you carry as much momentum as you can through the corner with a Crate, but you also have to do that in the Supers too. Neon Will. ACP: Draw a circle, and imagine how force vectors go: put a dot in the middle of the circle, and you get to put a certain amount of force forward or backward before you go out the edge of the circle. A rusted car will take a lot of repair before being able to weld in a roll cage. I think there are a lot of drivers who say they dont like racing front-wheel drive cars, but I think thats mainly because they have never driven a properly set up one. Interior must remain open. Thats a good way to get the tail to come around. Walk on foot. You want to soften the roll in the front and stiffen the roll in the rear. You cant really trick (the cars computer) that way (anymore). Front Wheel Drive - 411 Motor Speedway Basics of driving front wheel drive on dirt and a couple tips to get you up to speed and hopefully out of trouble. The car should enter, go through the middle, and come off the corners going straight ahead and balanced in the overall setup. As you push that pedal down to the ground, thats an effort to try to keep you in that friction circle. Flywheel, flexplate, clutch assembly and torque converter must be unaltered, OEM for year, make and model of car used. All tubing must be minimum 1.50-inch O.D. (Ex: 140- 80 = 60 / 7 = 8.5psi). Less fuel equals less weight in the car. Also, using them is very close to installing a more robust suspension. You can overdrive it a little bit to compensate. Same as lots of cars. Which is why front-wheel drive cars tend to understeer, especially on corner exits. Just remember to take it to a track if you really want to test your limits. If not, refer to steps A. through C. above. I am only familiar with how to change the camber on the Mopar cars. LF = 350; RF = 325; LR = 200 (350 pounds swing arm); RR = 175 (325 pounds swing arm). Rear hoop must have X bracing configuration. When mounting the seat be sure to use at least 3/8 bolts, grade 8. Black slick, a condition in which the track still has enough moisture to keep the material packed, but has hardened and is taking rubber: 1.1 to 1.3 g's (becoming difficult entering and turning in the middle of the turns). HS: When the track turns black, the surface has become hard with very little loose material. On the flipside, if you remove too much front wheel rate, you can have issues with body roll to the point where you lose contact patch due to the camber changeresulting in less front traction rather than more. You've just got to drive it and hang on. It's just the way God intended it. The problem with this weight transfer is that it takes weight off the inside tires, which is exactly what we are looking for in the rear but exactly the opposite of what we need in the front. (A) $1500 cash claim or exchange on complete car. Sometimes you can spin the tires and make it worse, and then sometimes you can spin them and that friction opens it back up. P5007314 Hub and Bearing Kit (199599 Neon ACR). Remember in the article, about the rear sway bar being more important than the front? Well Mr. Holt, as a matter of fact I just returned from 2 weeks in Egypt. If so, tune the brake bias to be neutral. If you are in a Super you can help loosen the car up with the throttle. Watch the races and see what the fast guys are driving, chances are they have already researched different makes and models and are racing a style of car for a reason. Dry, a condition in which the top layer is now drying out and losing material in the form of sand: 0.9 to 1.1 g's (loss of grip is now getting substantial, and the car will not turn well or get bite off the corners. A typical setup might be: LF = 350; RF = 375; LR = 175 (325 pounds swing arm), RR = 225 (400 swing arm); 56 percent left-side weight; Panhard bar at 11 inches left and 12 inches right; and no front Ackermann with zero rear steer. This story was born from a pair of conversation we had with Dirt Late Model veteran Dale McDowell and Modified racer Jason Hughes about one of the trickiest situations any dirt racer will run into: How to drive a wet, rutted race track. Photography Credit: Rupert Berrington, How to go quickernot just fasteron track. Make your front-wheel-drive car faster - Grassroots Motorsports With the rear setfor some toe, I don't remember but think it was around 1/16". must remain in the OEM location. Lots of other tricks off course but for low grip adding castor works for me. Tires must be inside of body. 4m.net is a very large nation wide racing forum,,, THEy have a very good ministock tech forum,,,so register , then go to the Mini stock Tech forum and learn. All cars must remain strictly OEM. Spring split at the front also has less affect and has more influence on entry. BeamNG.drive drift build download. also here is the spartan speedway message board links, http://spartanspeedway.com/forum/index.php. We will make some changes to the previous spring setup. SPRINGS/SHOCKS/STRUTS: All shocks and struts must remain OEM, in OEM location. Rear Tension Struts feature a high-durometer bushing material designed for heavy duty and competition use. All you've got is the brake adjuster, and the rest you've got to handle the best you can with the throttle, the brakes and the steering wheel. I was just rereading this article yesterday, with the plan to take my econobox for an alignment, before Sunday's autocross. Once the track has hardened, it will quickly continue to change toward black and then to slick. these cars Are NOT allowed Locked or posi-traction final drives, Max tire size 195- 70 or 75 series, and must have Stock engines and suspensions.,,,tyhey run on 1/4 and 3/8 asphalt tracks Mr. Holt, what is your baseline setup with a FWD car? This is great for smoky burnouts but not so great for getting around a track quickly. Install softer rebound left-side shocks and softer compression right-side shocks. Racing karts are single-seat vehicles that can reach speeds up to 160 mph but the typical dirt track kart usually reaches speeds ranging from 30 to 50 mph. (If you are interested, you can learn more at www.DirtSchool.com. Now, to make an enthusiasts competition vehicle more able to maintain your desired competition alignment settings you need to solve that with performance suspension bushings. CT: How do you set up a car for a track you've never been to before? Upgrade is recommended for non-ACR Neons used for racing purposes. According to the National Speedway Directory, there are over 700 dirt oval tracks in operation in the US. A low CG number for a dirt car is around 17-18 inches off the ground. Fuel lines through driver compartment must be steel. do not allow extensive engine mods ,,, like your class does. The straighter you are in both the Crate and the Super, the faster you are going to be. And he has some advice. The primary goal of the diff in a front-wheel drive application is to apply power efficiently to both wheels, without excessive wheel spin from the less loaded, inside front wheel. Raise the moveable weight up and to the right side as much as possible for a 50-50 percent side-to-side weight distribution. Adding camber plates with a modified top mount should allow you to get a minimum of 3 degrees of negative camber, which is the starting range used on our production-based C30 race cars. They are crazy! This is where car setup comes into play. Thanks for all those mopar part #s and neon links, now you gave out all my secrets, but thats ok the more neons the better. Most run a locked diff. I've auto-crossed FWD for decades and the most SOTP effect with more (positive) caster is steering feel as it relates to the self-centering effect, if both sides are equal. The goal in removing or disconnecting the front bar is to load the outside front going into a corner as much as possible by allowing better weight transfer during trail-braking. It depends on the car and the tires being used. Very moist but graded and compacted: 1.5 to 1.6 g's (the best the track will be all day and very fast through the turns). No convertibles or two seat sports cars allowed. The LF tire will be doing less work with these changes but should still be touching the ground, and the Ackermann will help it provide turning power. The goal is to try to keep the car loaded so it doesn't get free. Even Stig Blomqvist once said something like, Ja, I think when the Quattro came out we had a bit of an advantage coming from FWD.. I got two control inputs coming into the computer here, I got throttle angle and I got brake pressure, and itll cut you to limp mode.. No remote reservoir power steering. The surface has not come apart just yet, and passing is a bit more manageable because the entire width of the track is uniform in grip. Others are far more involved and only make sense for dedicated race cars. Provides more positive suspension control for improved driver feedback and dynamic stability. Racing Wheel Technology Guide - Components and Design . East Lincoln Motor Speedway on MyRacePass P5007003 High Rate Autocross Coil Springs-Front, 225 lbs./In., 1" Lower Ride Height (199599 Neon), P5007004 Extra-High Rate Autocross Coil Springs-Front, 310 lbs./In., 1" Lower Ride Height (199599 Neon), P5007005 High Rate Autocross Coil Springs-Rear, 185 lbs./In., 1" Lower Ride Height (199599 Neon), P5007006 Extra-High Rate Autocross Coil Springs-Rear, 230 lbs./In; 1" Lower Ride Height (199599 Neon). Heres what ACP has to say about how to drive the shit out of our FWD car: (Full disclosure: The following are ACPs statements as he ran through them with me over the phone. DEALS. Upgrade base model vehicles to ACR/RT level, and upgrade ACR/RT models to higher levels. Change all the fluids; drain the antifreeze replace with water. The .91 ratio transfer gears are needed along with the 2.86 ring and pinion gears. LM: These conditions are the fastest you will encounter. LM: We can now begin to change the spring rates at the RF, RR, and LR. > Should you have Rear Sway bars? We will take more air out of the tires, but not enough to cause them to roll over. You have to keep your momentuum up and try to run in the outside groove to keep your speed up. do not allow excessive lightening of the chassis/body,,like your class does. Run a higher pressure in all of the tires. Once your car hits the black groove, it will grip and you can accelerate off from the passed car. Time is a factor and we want to make positive changes that can be accomplished in a short period of time. YOU!!!!! Running camber in that range will allow the tire to lay completely flat in the corner, giving it the biggest contact patch and the maximum amount of grip. This is alot of information all at one time. The primary goal of the diff in a front-wheel drive application is to apply power efficiently to both wheels, without excessive wheel spin from the less loaded, inside front wheel. This kit upgrades standard hubs and bearings to service Neon ACRs. Don't put the weight in front of the front wheel and don't add any behind the rear wheels. A commonly used technique drivers use to induce the car into getting entry rotation is trail-braking: decreasing, or trailing off, brake pressure as the car approaches the apex of the corner. BRAKES: Must be steel, unaltered, OEM operative, four wheel disc or drum brakes, and match year, make and model of car used. Some guys like to lower the left-side rods, but others hate that. . ENGINE COMPARTMENT: Engine and radiator must be OEM, in OEM location for year, make and model of car used. Lower pressure on the left side will provide a lateral force that counters the centrifugal force that is trying to take the car up to the wall. This style of driving has a couple of benefits. Camber is the angle at which the top of the tire is tilted in or out. 4. Camshaft package includes cam, front seal and cam lube. Basically, the more you turn the steering wheel, the more camber, and potentially more grip, you get. Frank: When it is slippery, if you are on the brakes too hard or on the gas too hard, all you are doing is sliding the car. Isn't the body roll in a favorable direction? Toe is the angle that the tires have toward each other. BODY/CHASSIS: Any front wheel drive, compact car with three or four cylinder engine. Just aim for the gritty spots, and that can help keep the tires from glazing over. Because youre asking so much from the front tires.. 5. Answered above. We will now soften the LF spring to a 750, the RF spring to a 650, the RR spring to a 150, and move all of the moveable weight to the right side and higher up. For more information, call IMCA at 319-472-2201. For more info about rotating the car, check out the video Quick Tip here. This is a pretty sophisticated FWD set up story and conversation but I did have one question. Roll bar padding required in driver compartment (Fire retardant recommended).
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