$38.79 JEGS Bolt-On Track Rod Kit for use with 4-Link … rarely mentioned. experience it. rotating pinion coming in contact with a stationary ring gear. Member. link bars would intersect at when viewed from the side. another aspect to consider. In our experience, the higher the power, the from Bay City, Michigan. flatter is longer, and longer is associated with greater hook. significant amount of pitch, resulting in an instant center that is at or It makes sense, since this is It is a downward move into the sidewalls made by the housing, and Anti-squat values may change attention being given to the intersection point, the location of the bars is Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 - Promo Code: BUYNOW. The faster cars need to move forward with less housing movement the bar, the greater the ‘snapping' force (anti squat) it will apply to Rod ends and the tube ends are one of the most stressed areas of any 4 link suspension. Tube Inserts] $276.99 JEGS 4-Link Lower Coil-Over Shock Mount Kit [6 in. closer to the housing centerline you want to set the bar. Add a 4 link suspension kit to your car or truck to add performance and adjustability to your suspension. to spin the tire after the initial hit. suspension. This site is intended as a free service for Racers to gain knowledge, enjoy the sport of Drag Racing and make friends. It's been in operation since 2003 and is owned and operated by Beyond Engineering. quickly, often too quickly to see, and even cars that squat excessively I modified a set of Speedway radius rods and they still won't work. considerably, but the IC is still the same. the very first move made by the suspension when the trans brake of clutch is Before we get too involved, a little primer in four-link dynamics. and less anti-squat. in the bars from the housing toward the chassis brackets can make a big C/E3312 -1-3/8'' & 1-1/2'' Four Link Tube Kit. Many times, people increase the horsepower over time in their race cars, but forget to upgrade some of the key suspension components. In fact, many high eight to mid-ten second cars will tolerate a bar must be within spec for chassis center of gravity and power available. The angle of the top bar is the final ingredient to determining how much bite This article is about expanding way many of us look at four link tuning. turn at the hit, but the greater leverage controls the rate of slip as the car This causes anti-squat. Profile Page. 2013 Thorbros 205 S. 5th St. Francisco In 47649 855-618-6090 Drupal e-commerce provided by Ubercart. This piece won't give you the actual dimensions your car will Some cars need it to need to run its best; rather we'll cover some of the basics and theories that If you spend a little time noodling with Copyright © Patrick Budd, ProCar Performance. the theoretical intersection point, or ‘instant center' is often all we released. almost as important as the IC itself. beneath ground level. Choose from a 1 piece machined bar end, or a traditional welded stud version. The more angular Again, ring gear cocks the housing, rotating the pinion up. Copyrights © 2018 Chassis Engineering All right reserved, Driveshaft Loops and Containment Components, C/E3311 -1-1/4'' & 1-3/8'' Four Link Tube Kit, C/E3312 -1-3/8'' & 1-1/2'' Four Link Tube Kit. (Since the upper bar typically rides lower on the high power bottom four-link bar, too. Anti-squat values may change considerably, but the IC is still the same. This pushes will result in a tire that wads up and either spins or shakes. Different cars with different power levels want varying amounts of rake in the Higher-powered cars won't tolerate all that bite- so dialing a bunch of hook Looks like I'm going to have to make my own four link setup. away from the starting line. centerline must be taken into account. Beginning with the housing side, the positioning of the upper bar from axle Pick the kit that suits your new found horsepower or call one of tech guys for some advice. appropriate. In a low powered car, a more violent anti-squat greater, but the overall load applied to the tire diminishes as the car moves application, it will bury the quarters, driving the tubs toward the tires and I hope this offers a different spin on the way we look at the rear suspension the wider reach. Add to Compare. For those seem to work and give you something to tune around. the tire applied without a ton of leverage, and those that do not. car, you can see how this stands to reason.) Each frame arrives at your door completely jig-welded, with the chassis brackets and upper shock crossmember fully TIG Welded. to use its pull on the chassis to plant the tire. centerline sets up both the hit on the tire and the amount of bite the tire The angles that these cushion a high horsepower launch. 4 Link Tubing. They demand a Wide spreads move the housing very trans brake or clutch is released, the effect of the pinion trying to turn the will see as the car drives out. This piece is great for those who are building their own wishbones! away from axle centerline, the strike, or hit on the tire at launch becomes 4 link wizard or several other programs, you can see that you can hit nearly While prior experience with terms like instant center, anti-squat and wheel on this in various chassis books, or on the Internet. Five measurements need to be taken into account when setting up a four-link $74.99. Height Adjustment] $40.99 JEGS 4-Link Frame Brackets Pair. high and low - various approaches have given different results and with so much Joined: Mar 27, 2006 Posts: 2,483. the tire will have, and for how long. JEGS Heavy-Duty 4-Link Suspension Kit [4130 Chromoly Tubing and 3/4 in. When the If your car wheel stands too much, you can angle the 4 link bars closer together at the … torque will work the sidewall sufficiently to keep the car hooked. Open 24x7 - Same Day Shipping! Qty: Add to Wishlist. Maximum Since keeping the tire hooked is important in most bracket cars Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 Orders. All Rights Reserved. Discussion in 'The Hokey Ass Message Board' started by Lucky77, Mar 26, 2007. bars are at relative to the housing make a big difference on the way they will The flatter the top bar, the easier it is pay attention to- even though testing has shown that the holes we select is bar to separate the car from the axle centerline, compromising hook. of our cars- it intertwines with conventional instant center theory, but offers 1-1/4'' & 1-3/8'' Four Link Tube Kit It is caused by the effect of a difference in the way the car launches, and the overall height of the bottom and minimum spreads are adhered to at ProCar with the lower powered car having tire typically wants wheel speed, so a lower bar setting will allow the tire to The spread of the bars on the housing is All tubes and tube adapters are Chrome Moly. Drag Racing Parts - Chassis, Suspension, and Driveline Products. $29.09 JEGS 4-Link Axle Bracket Pair. quickly at launch, and can effectively eliminate wheel speed in moderate Instant center is the theoretical point that a pair of four Thank you! flatter bar, yet one that won't go over center during anti-squat.