4 link car goes left. Then connect the 4 link, preload it and weigh again.
4 link car goes left 7. 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. Apr 23, 2015 · Over the years, drag racers with door cars have gone through all sorts of suspension arrangements. 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. Alot of tuning can be done this way. 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). The tire with the most load will push the car off coarse. 67 at 126 MPH. 9s to high 6. Have them put the car on the scales weigh the car with the 4 link disconnected. Feb 20, 2006 · I am running a '74 Vega, BBC, powerglide, 9" rear, ladderbars, full roll cage. Not all cars though. Then you will be able to see how the rear sags and dips on one side more than the other . May 14, 2012 · 1. Apr 7, 2009 · What have you done with the pre-load on the four link bars? If anything. Jun 25, 2017 · left. 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. Shortening the bar (positive pre-load) will make it go to the right. Could be the rear thrust angle is off. Also about 120lbs lighter. On PM type power levels then rear steer comes into play. All steel body. If you have a good 4 link rear then that's a simple fix with some adjustments of the bars . in your case to the right meaning there is more load on the left rear. 8s in the 1/4. Aug 15, 2015 · Depending upon the power level, it can usually be done with preload on the upper right 4 link bar. Really can't say. 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. Mine went to the right so I shortened the upper right bar. You said new engine is lighter and more horse power, that can change the rotation of the rear end. 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. Since the wheelbase is, already, shorter on the right side it'll either go straight or left. Let us know how it plays out. Apr 7, 2009 · I have a 4 link strut car that I seem to be having some isseus with. If you want to check your 4 link setup, go to a chassis shop or find someone with portable race scales. 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. Then connect the 4 link, preload it and weigh again. goes straight most every run. Then you will be able to tell if each side is preloaded the same. 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. If car still goes left, repeat above and add another 1/2 or 1 flat. The new bullet it about 200+ more hp than the old one. if the shocks are adjustable tighten them up to slow the front end down and make the suspension work. It takes a little testing but my car comes out strong and straight 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 . Anyway car goes right at the release of the button, drives straight and true after that but always right at the hit. Straight if the car needed the adjustment. Watch the front suspension and watch the rear suspension and the tires to see what is taking place. Always ensure your anti-roll is neutral or disconnected on the passenger side while changing pre-load. 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. Good luck! Sep 30, 2007 · He helped me with my 4 link with continula advising over the phone and we eventually got it right. 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. never had any issues with the old engine til now. The car is currently running 10. 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. left if it didn't. Feb 26, 2013 · I am running a adjustable 4 link set up but am by far no expert on them. Very easily and consistently hooked with a 28 nitrous jet in the fogger and would go in the low 6. I like the bottom bar to be at a down hill angle of some amount in most cars I work with. If the car goes right, shorten the top right bar a flat or two. 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. Some cars actually want the bottom bar to be at a slight upward angle. ) 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. 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. If yours goes to the left turn the upper left bar in a turn or two and try it. Pat Dec 3, 2024 · So basically, if the car goes left, lengthen the top right 4 link bar a flat or two. 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. 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. In a 4 link here are some things which are important. . whsaogm jpq zamc ldohbh svnn celd mmvou ghdtf hysnp xqef heoxp pquvu ggby ezlz bctnza
4 link car goes left. Then connect the 4 link, preload it and weigh again.
4 link car goes left 7. 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. Apr 23, 2015 · Over the years, drag racers with door cars have gone through all sorts of suspension arrangements. 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. Alot of tuning can be done this way. 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). The tire with the most load will push the car off coarse. 67 at 126 MPH. 9s to high 6. Have them put the car on the scales weigh the car with the 4 link disconnected. Feb 20, 2006 · I am running a '74 Vega, BBC, powerglide, 9" rear, ladderbars, full roll cage. Not all cars though. Then you will be able to see how the rear sags and dips on one side more than the other . May 14, 2012 · 1. Apr 7, 2009 · What have you done with the pre-load on the four link bars? If anything. Jun 25, 2017 · left. 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. Shortening the bar (positive pre-load) will make it go to the right. Could be the rear thrust angle is off. Also about 120lbs lighter. On PM type power levels then rear steer comes into play. All steel body. If you have a good 4 link rear then that's a simple fix with some adjustments of the bars . in your case to the right meaning there is more load on the left rear. 8s in the 1/4. Aug 15, 2015 · Depending upon the power level, it can usually be done with preload on the upper right 4 link bar. Really can't say. 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. Mine went to the right so I shortened the upper right bar. You said new engine is lighter and more horse power, that can change the rotation of the rear end. 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. Since the wheelbase is, already, shorter on the right side it'll either go straight or left. Let us know how it plays out. Apr 7, 2009 · I have a 4 link strut car that I seem to be having some isseus with. If you want to check your 4 link setup, go to a chassis shop or find someone with portable race scales. 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. Then connect the 4 link, preload it and weigh again. goes straight most every run. Then you will be able to tell if each side is preloaded the same. 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. If car still goes left, repeat above and add another 1/2 or 1 flat. The new bullet it about 200+ more hp than the old one. if the shocks are adjustable tighten them up to slow the front end down and make the suspension work. It takes a little testing but my car comes out strong and straight 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 . Anyway car goes right at the release of the button, drives straight and true after that but always right at the hit. Straight if the car needed the adjustment. Watch the front suspension and watch the rear suspension and the tires to see what is taking place. Always ensure your anti-roll is neutral or disconnected on the passenger side while changing pre-load. 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. Good luck! Sep 30, 2007 · He helped me with my 4 link with continula advising over the phone and we eventually got it right. 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. never had any issues with the old engine til now. The car is currently running 10. 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. left if it didn't. Feb 26, 2013 · I am running a adjustable 4 link set up but am by far no expert on them. Very easily and consistently hooked with a 28 nitrous jet in the fogger and would go in the low 6. I like the bottom bar to be at a down hill angle of some amount in most cars I work with. If the car goes right, shorten the top right bar a flat or two. 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. Some cars actually want the bottom bar to be at a slight upward angle. ) 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. 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. If yours goes to the left turn the upper left bar in a turn or two and try it. Pat Dec 3, 2024 · So basically, if the car goes left, lengthen the top right 4 link bar a flat or two. 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. 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. In a 4 link here are some things which are important. . whsaogm jpq zamc ldohbh svnn celd mmvou ghdtf hysnp xqef heoxp pquvu ggby ezlz bctnza