My understanding was the rear toe-in steered better into the corner much like the Honda Passive rear steering, as the suspension loads up, the inside rear tire toes in. Always check it after any contact with other cars. this is a site for you to sell your Front wheel drive racecars and only front wheel drive racecars and parts tires ETC. Saturday, 24 June 2023. It is also a good idea to change the oil and filter in the transmission. You want to shoot for about 2/3 of the car's total weight to be on the front axle. You want to soften the roll in the front and stiffen the roll in the rear. You also have to watch the track to see how it progresses and watch guys who are fast to see how they are driving the track. Must have inspection hole in bell housing. Mr. Arnold. Let's use two of the most popular types of dirt car-a touring Late Model and a metric-style Hobby Stock car. Have Russ a Crankshaft Craftsman in Detroit regrind the stock roller cam to Oval track specs. 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. But Perhaps we are compairing apples to pears here, and that might explain the different chassis setups. We can start moving weight over to the right side to provide a lower left-side weight of 52-54 percent. The 1.06 gears are just about as quick if you're running by yourself, but if you get in traffic and have to lift off the throttle, it takes longer to get back up to speed. Mr. Holt has been helping 4 cyl cars go faster since I first met him in the mid 70s. Or if you are a three-wheel braking, you go to four-wheel brake. If your shop is saying different then take your car to another shop. 16. For Tech info on the 2.2 2 valve OHV engine GM Chevy Cavalier and Pont. SPEED SECRETS for 4 cyl FWD race cars - Forums Those conversations were so enlightening that we decided to keep going. One of the simplest things to do to help get rotation in a front-wheel drive car is to increase rear tire pressure. If you are in a Super you can help loosen the car up with the throttle. Done correctly, this weight transfer has the added benefit of taking weight entirely off the inside rear tire, resulting in the classic three-wheel, peeing dog cornering stance that front-wheel drive cars are so well known for. ACP: The way we teach this in driving school is, we imagine a string, from the bottom of the steering wheel, to the top of the throttle pedal. Home | Fwdcircletrackracing It locks up that wheel just a little bit, and that kicks the tail of the car around. Quick release steering wheel is allowed, must maintain OEM column. Engineered exclusively for Neon, this camshaft was developed for power while maintaining reliability and idle quality. No mirrors. This makes plate diffs the clear winner when used for a full-time, dedicated front-wheel drive track car. It has been condensed and clarified.). I've always been a momentum driver, so that plays a big role in to the way that we tune the car. Gasoline only, maximum 93 octane. You only have so much force that a tire contact patch can give you and remember, tire contact patch is about the size of the palm of your hand. You have to run some amount of caster and like most setups it's about finding the optimal amount. A good car will generally show 62-67 percent front weight. They need to be rolling with not a lot of slippage, especially when the track is slick. Draw an arrow, from the dot in the center, toward the edge of the circle, and you get that line is a consistent length. You can overdrive it a little bit to compensate. 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. ENGINE: 3 or 4 cylinder in-line engines only. If the track goes slick you probably want to tighten it up. Fuel cell vent, including cap vent, must have check valve. Front-engine, rear-drive . 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. ( TIRES AND WHEELS: OEM DOT 13, 14, 15 or 16-inch passenger tires only. Gas tanks ahead of rear axle allowed but must install shield under it. Car must start without being pushed or pulled from initial staging area or go to rear of that race. Change, change, everywhere a change , a message from social protests of the '60s, could have been written in reference to dirt track racing. The problem becomes if you try to on 45 degrees. I just started roadracing a FWD 1993 Mazda MX6/Ford Probe with a 2.5 L V6and I'm taking all this advise to heart. Late Model (LM): A similar situation would apply to the LM car. Watch Absolute Carnage Ensue At Cleetus McFarland's Danger Ranger On 1 week learning the secrets of camel racing (2WD & 4WD) Also, the cab drivers in Cairo would make great race car drivers. The most difficult tracks are the ones in which the type of dirt or clay needs a lot of moisture in order for the track crew to be able to groom the track. The Racing Line Goes Over Differences Between RWD, FWD, and AWD If the rear is loose enough to corner well, it is generally too loose for best time in transitions. The front springs will always be the stiffest. For more than about 7 degrees on the Mopars, you'll have to lengthen the lower control arm. Inner fenders may not be removed. As the car rotates, it develops an aero force that acts like added traction. In addition, too much pressure can result in making the tire too stiff and unpredictable (snap loose), so make small increases in pressure until you find that sweet spot that works well for your car. Increase the Ackermann to 1 degree in 15 degrees of steering. Keep the rear tires underneath you, don't spin the rear tires.