The Sweet Science of Front Wheel Drive Racing - Road & Track Tires will be the most used/checked thing on your racecar. As the g-forces change, our setups must change too. Dry slick, a condition in which the track has lost considerable moisture and is now very dry and slick with little grip: 0.7 to 0.9 g's (The cars are now very slow in getting into and through the turns, and traction under power is very low. 3/8 mile dirt: Front Wheel Drive, Young Guns, Stock 4, Super Stock 4, Renegade, Open Wheel Mods, Crate Late Models, Crate Sportsman Cherokee Super . Find a suitable car. You cant really trick (the cars computer) that way (anymore). > How much faster did installing the right gear ratio make your car? Often guys do it with very stiff sway bars, you actually need a very stiff sway bar in the front of a FWD car, but a lot of guys jack up the sway bars in the rear, and that causes there to be enough rear roll stiffness that the rear breaks early. This is what happens when you see the left rear tire coming off the ground in the corners. Experience suggests GM and Chrysler are the best cars to race with because the front suspension of both of them is adjustable for camber and the entire front suspension is mounted on a cradle. And that circle represents the amount of traction the tire can give you. Note: Negative is when the top of the tire is tilted inward. Now thats fine if youre dealing with a race car or an older car. Remember in the end you'll have complete control over this so you're really just choosing a sensible baseline. Have Russ a Crankshaft Craftsman in Detroit regrind the stock roller cam to Oval track specs. Front Wheel Drive Tips and Tricks - Live Tutorial - YouTube Note: Emissions exempt in California, Massachusetts and. The stick shift PCM's will work with a Automatic trans. Eibach makes stiffer stock looking suspension springs For MOST FWD 4 cyl cars and they also lower your car,,. The driver can drive straight into the corner, brake harder, and get back into the throttle sooner than at any other time of the day. There is no foam in the stock tank and the fuel will slosh around making it hard to keep the right fuel pressure to the engine. Select spring sets lower car as noted. Mr. Holt has been helping 4 cyl cars go faster since I first met him in the mid 70s. We can now begin to soften the setup somewhat and change the RF spring to an 800-pound (rated) spring or remove the RF full spring rubber and replace it with a half rubber. Evo is a little different, and STI is a little different, but they all fundamentally drive like FWD.. Dash may be removed, but can remain. Setup-wise, the tendency is to tighten your race car up. All forward and reverse gears must be operational. These are used for adjusting the camber on the front. There are several adjustments that can be made to assist in loosening up a front-wheel drive car and countering the terminal understeer they commonly exhibit. To run a single setup throughout the day is not going to get the job done in this day and age. Installing a differential helps keep that inside-front tire planted, while a touch of rear toe allows the driver to play fast and loose with the car's rear. 15. Posts: 122. More rebound shifts. [Editor's Note: This article originally appeared in the November 2012 issue of GrassrootsMotorsports.]. > When weighing the car where you can read the weight of each wheel,,. This modification was OK'd a few years ago and hasn't been disallowed as of yet. Increased pressure makes the tire stiffer, which in turn, increases effective spring rate. On the Volvo C30 Touring Cars we ran in the Pirelli World Challenge last year, we had nearly a 10-psi spread between the front and rear of the Pirelli P Zero slicks. 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. Slows down the rear wheels, and allows the car to rotate around. By Towards the left front but behind the LF wheel and down as low as possible. Since Im going to be driving the new Honda Civic Type R in a few days, I asked for advice, and he basically took me through six principles: Comrie-Picard had a lot to say explaining what all that means, and Ive transcribed all the tips I was able to get out of him after I let ACP, as hes known, tell me about Car Saviors, the TV show hes trying to get traction with where he teams up with Hoonigans Britan Scotto to restore and reimagine weird old garbage cars and then drift the hell out of them. 1. This kit upgrades standard hubs and bearings to service Neon ACRs. Dick Shine used to say that caster was evil and to never increase it. Now weve seen a bit of what the driver can do to help negate some of the front-wheel drive disadvantages, but what can the car do to help in return? I really enjoy my R53 as a daily runabout and occasional track car, but RWD will always be my go to for toys. As the track dries out and slicks up, adding a little rebound to the front shocks will help hold the front end down after Long uses the brakes before entering the turn. Must use one inch O.D. Raise the moveable weight up and to the right side as much as possible for a 50-50 percent side-to-side weight distribution. If you can't fit it in there, then it should still stay on the left side as much as possible. Inner fenders may not be removed. Looked like fun and super cheap to do. 2. Fire retardant neck brace, gloves and shoes required. I too have been racing FWD's for many years and early on, the folks that did my initial alignments, a race shop in LA, set the front toe out, and the rear in, not a Robb suggests, rear out. Reduce the air pressure in the tires by 2 pounds all around. When you do ALL of this, and then lower the car and stiffen the suspension and upgrade the brakes, no bar up front is no-bueno. It's good to get tips from other guys and see what they do, but to mimic their setup and think you are going to have the same results can often be a mistake. Eckert: Once you get racing there is not a lot you can do. Properly executed trail-braking shifts weight from the rear of the car to the front, increasing grip on turn-in. Front Wheel Drive Set-Up. But generally, I've found the following to work good when coming in after a hot practice session: Hmm Maurice might want to read up on roll couple distribution theory. The weight moves off the front outside and onto the front inside. HS: When the track turns black, the surface has become hard with very little loose material. A top Neon team can help with their setup here. Replace the engine accessory drive belts. AND now that you just gave him all of that information, he will have no excuse not too!! May use solid engine mounts or safety chains. You lose more camber in the rear too! Most run a locked diff. Always check it after any contact with other cars. Dirt Oval Racing Cars for Sale | RacingJunk Obviously, changing your wheel spacing, taking stagger out of the race car and just trying to get your car more balanced where it is not trying to turn so much on its own. Usually in the South you don't have to worry about it because the tracks are pretty gritty, but up North that can be an issue. While it is highly unlikely that any FWD teams would be able to obtain this ideal distribution (unless the rules required a very heavy minimum weight), that's the direction they should be headed. > What are typical Toe setting settings for the front and rear? We can see how it is possible to experience a high 1.7 g's all the way down to a very low 0.7 g's in a single day. Please share more info on your FWD chassis setups,,. 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. This is the pressure you are targeting for each wheel when the racing car is out on track. From spartan speeway web site.POSTED BY. Posted on Wednesday, June 14, 2006 - 09:54 am: -------------------------------------------------- ------------------------------. 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). 4. The reason caster is a highly effective adjustment on front-wheel drive race cars is that as caster is increased, camber will also increase exponentially with steering angle. This topic is now archived and is closed to further replies. There is no way a team can run well in all of the conditions while maintaining the same setup. HS: As the track begins to dry out, the surface will start to become black and a little slick. Which Model, engine type, trans type and Year HONDA would you build and WHY? Based on these 2007 IMCA rules, which HONDA car (model, Year, body style), Honda Engine and trans should a new racer pick to build and race?? All the weights on the nose, all the pulling happens at the nose, and all the steering happens at the nose. A more sideways driving style is sometimes helpful for mostly aerodynamic reasons. Or maybe you should just practice your trail-braking. No speeding, no passing, no bumping; just drive around. (Consider the Ford Focus ST.) It doesnt have a real (limited-slip differential), but like so many of these cars now, (it) uses an electronic brake distribution control (to simulate the effect of an LSD). The transmission is run in first gear. If you don't fancy running through all the above set-up work then you can download the special Traxion drift edition of the Ibishu BX 200. This is where you need to check the tires after you run and move the camber and toe until the tires are the same temperature all the way across. I personally expect him to do quite well. cars. BRAKES: Must be steel, unaltered, OEM operative, four wheel disc or drum brakes, and match year, make and model of car used. LM: We will want to soften the setup a little more while the track is transitioning through this phase, and we need to reverse-split the front springs. For now, use a stiffer (RR) spring with a high Panhard bar mounted on the right side for consistency. In fact, I just spent about 400 miles on the track with the Fiesta ST, GTI, and Type-R, Golf R, WRX STI, Civic Si, and all of those street cars, except for the Type-R, would go to limp mode. So the car feels looser. And thats one of the things that left-foot braking and a good brake modulation and good control of weight transfer does.. But if you have tried getting out of the throttle early and it still isn't helping, you can get out way early and then get back on the gas as you go through the corner. The air pressure must come down some, but do not run soft on air at this point. Pull onto the track with the rest of the participants to drive slowly, packing the track down. It brakes individual wheels according to the inputs of what you are telling it to do. But you have still got to do what you are comfortable with. Provides more positive suspension control for improved driver feedback and dynamic stability. 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. A typical setup might be: LF = 400; RF = 450; LR = 225 (400 pounds swing arm); RR = 275 (500 pounds swing arm); 56 percent left-side weight; Panhard bar at 11 inches left and 12 inches right, mounted to the right side of the chassis; and no front Ackermann with zero rear steer. Almost always, that means bringing you information about how to build a better--and safer--race car and set it up for best performance. Any more than that 20 percent, and the tire will go over its maximum available grip and lose traction, with the result being the dreaded power-on push that front-wheel drive cars are infamous for. Robb was like, I still get comments on this article. No high performance or sports car engines of any kind. Time is a factor and we want to make positive changes that can be accomplished in a short period of time. Step 1 - Decide your target hot pressure. CT: How do you set up a car for a track you've never been to before? One of the Hot shoes from the Thunders (who kicked but on both dirt and asphalt) will be joining us this year. That being said, if your car is suffering from terminal understeer, getting rid of the front bar will definitely help. If you can learn to pilot a FWD car fast, you can drive anything. Sunfire overhead valve 4 cyl. http://www.mopartsracing.com/parts/neon.html. When running a fuel cell you will need to run an aftermarket fuel pump. Pumping up the rear rubber and hitting the front tires with more negative camber can boost your cars cornering abilities, but dont forget to modify that variable in the drivers seat. I'll bet he is a three wheeler and complains about the "push".. Wow! The front springs will always be the stiffest. Rear Tension Struts feature a high-durometer bushing material designed for heavy duty and competition use. EXHAUST: Exhaust manifold must be unaltered, OEM for year, make and model of car used. Normally there are lots of used seats available you just have to look around. Adjust your rear camber based on the front, and fine tune both sides using your pyrometer. The more parameters you can modify (suspension pickup points, roll centers, custom uprights and control arms), the less you have to trick the car into doing what you want. Or if you are a three-wheel braking, you go to four-wheel brake. So based on that, your front struts are DIRECTLY tied to how far over the body rolls. Richards: The biggest thing is don't ride around in the slick under caution so the tire won't cool down and glaze over. Now that we have the car loose on corner entry, the driving style becomes what I like to call pitch and catch. You can pitch the car into the corner, and as the back end starts to come around, you catch it with the throttle. No remote reservoir power steering. For Springport, you can install the commonly available 1.06 transfer gears and run fast. If so, your anti-roll bar setup is on the right track. With the rear setfor some toe, I don't remember but think it was around 1/16". If you get a caution you can try to find some dust and spin the wheels in it and try to clean that tire back up, but there's no guarantee that's going to work. 4. Look for some grit; just aim for places where it's not really shiny. You can run a lot of toe in a fwd and a quarter inch there might help as well. In a front wheel drive car most of them are running 2deg out on the left front 7deg in on the right front 1.5 In on the right rear 0 on the left rear. The moisture is evaporating off the first inch of material, and there will be less available grip without the surface becoming overly slick. They call him NeonWill - (cue the music!!). 12. Quick release steering wheel is allowed, must maintain OEM column. What this means is you either want a softer swaybar or no swaybar at all in the front. do not allow extensive engine mods ,,, like your class does. I wouldn'twant anything that tail happy on a road course as it does change directions rapidly. No aftermarket racing heads. 16. A FWD oval track race car, like most other oval track or road racing cars, should be as near 50%-50% front-to-rear weight distribution as possible. An "easy-up shock" is a common term used to describe a shock with stiff compression and soft rebound. One spring rubber allowed in each spring. It's best to purchase your first racecar already put together. We will examine some physical rules that deal with chassis dynamics so we can arrange the setup to meet the conditions. If so, tune the brake bias to be neutral. It depends on the car and the tires being used. TPS has not had a Neon in it YET. Watch Absolute Carnage Ensue At Cleetus McFarland's Danger Ranger On
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