4 link car goes left If a car, upon launch, is going to the right you shorten the top bar on the right side (shortens wheelbase on that side, slightly) to get the car to launch straight. Nice link! I was having a similar issue and finally talked to a chassis shop and was told the right rear should have 30lbs more on it than the left. If the car goes right, shorten the top right bar a flat or two. It has the Qa1 single adjustable rear coil overs in it and I had both re built and checked on a shock dyno by a Shock Guru in Colorado for us. . If yours goes to the left turn the upper left bar in a turn or two and try it. Let us know how it plays out. Aug 15, 2015 · Depending upon the power level, it can usually be done with preload on the upper right 4 link bar. Good luck! Sep 30, 2007 · He helped me with my 4 link with continula advising over the phone and we eventually got it right. Then connect the 4 link, preload it and weigh again. Anyway car goes right at the release of the button, drives straight and true after that but always right at the hit. All steel body. if the shocks are adjustable tighten them up to slow the front end down and make the suspension work. Then you will be able to see how the rear sags and dips on one side more than the other . The tire with the most load will push the car off coarse. Jun 25, 2017 · left. May 14, 2012 · 1. Also about 120lbs lighter. goes straight most every run. left if it didn't. Apr 23, 2015 · Over the years, drag racers with door cars have gone through all sorts of suspension arrangements. The new bullet it about 200+ more hp than the old one. 8s in the 1/4. It takes a little testing but my car comes out strong and straight now. Some cars actually want the bottom bar to be at a slight upward angle. Shortening the bar (positive pre-load) will make it go to the right. If you have a good 4 link rear then that's a simple fix with some adjustments of the bars . If a flat or two won't correct the problem, best thing would be to add some rear steer to avoid binding shit up with a bunch of preload. in your case to the right meaning there is more load on the left rear. Apr 7, 2009 · I have a 4 link strut car that I seem to be having some isseus with. Straight if the car needed the adjustment. A buddy told me that the bottom two bars should run parallel to the ground and are the adjustments you square the rear end up with. You said new engine is lighter and more horse power, that can change the rotation of the rear end. Feb 26, 2013 · I am running a adjustable 4 link set up but am by far no expert on them. Could be the rear thrust angle is off. If you want to check your 4 link setup, go to a chassis shop or find someone with portable race scales. In a 4 link here are some things which are important. 7. The car is currently running 10. Would the car track straight cruising at a steady speed if the thrust angle was off? Oct 9, 2014 · well, so far it has worked great. The 4-link & antiroll bar are all neutral with no preload anywhere. Jun 16, 2012 · My new car is pulling left pretty hard at launch. Mine went to the right so I shortened the upper right bar. Since the wheelbase is, already, shorter on the right side it'll either go straight or left. never had any issues with the old engine til now. Nov 16, 2012 · Get a camera and have someone stand behind the car and make a recording of how the car looks from a hard launch . some times the front gets going too fast with a 90/10 and when the shock gets to fully extended it will upset the chassis from the sudden stop of the extension and the weight transfer will try to move Nov 16, 2012 · Your bars are adjustable, I had a similar problem with my 4 link set up. Pat Dec 3, 2024 · So basically, if the car goes left, lengthen the top right 4 link bar a flat or two. Apr 7, 2009 · What have you done with the pre-load on the four link bars? If anything. when we went to the 30 nitrous jet it was a little tricky to get the driveshaft RPM to consistently climb(it would usually get a little higher than i liked at the launch, have a small valley in the graph Jun 16, 2014 · the unloading of the rear tires when the front gets fully extended may be the problem. Then you will be able to tell if each side is preloaded the same. Feb 20, 2006 · I am running a '74 Vega, BBC, powerglide, 9" rear, ladderbars, full roll cage. Very easily and consistently hooked with a 28 nitrous jet in the fogger and would go in the low 6. Really can't say. Have them put the car on the scales weigh the car with the 4 link disconnected. I like the bottom bar to be at a down hill angle of some amount in most cars I work with. 67 at 126 MPH. Mar 25, 2007 · If you have a car or are checking a customer's car get a vid or several fast frame stills of the car as the chute is deployed and opens. Lift bars, slapper bars, Super Stock springs, leaf links, ladder bars, three-links, four-links, and torque arms (there may be others too, but it’s a start). Car goes straight at speed and under say up to 3/4 acceleration, but when I really get into it the car heads left and I have to steer it to the right to keep it straight. thoughts? Nov 30, 2015 · The car has my old ladder/link bar set up on a 12 bolt in it when we swapped out mine to a pro 4 link and new Aluminum Rear differential. Not all cars though. Always ensure your anti-roll is neutral or disconnected on the passenger side while changing pre-load. I tried jacking up the left rear coilover Apr 22, 2013 · Lengthening your top right bar will introduce negative pre-load and steer the car to the left as it goes down track. May 11, 2015 · If car goes left, disconnect anti-roll, add negative pre-load (lengthen top right bar 1 flat), connect anti-roll & neutral it again with driver in the car. 9s to high 6. On PM type power levels then rear steer comes into play. If car still goes left, repeat above and add another 1/2 or 1 flat. ) whoever welded up the 4 link brackets in my car are idiots-so in order to get my bottom bar level i have to put the bar to closest hole to rear end-ends up being about 3-4 inches from rear end housing to the bottom bar, which from looking at various 4 link set up seems too close to the rear end. Alot of tuning can be done this way. Watch the front suspension and watch the rear suspension and the tires to see what is taking place. ipdlz gjkv pupg rrdoyj dnjjuxx ncbpvwsj botww qtnvu gngwar xkhx yhxqf uenwd ybqe lpdli ankdfy