snozzle Posted September 7, 2010 Share Posted September 7, 2010 (edited) hi all wanted to lower my car recently (height and damper adjustable coilovers) and have i noticed that my car is actually on a slight slant by roughly 1.5cm's drivers side is 1.5cm higher than the passenger side thought my coilovers were stuffed so i took them out, put my stock suspension in and car was still on a slant, but the slant was even more, about a whole inch (driver side kinda looked abnormally high) put coilovers back on, made sure they were same height spring tension etc, they were both exactly the same, i even swapped sides still...... same! so then i took both upper control arms off, found that the driver side one was bent, strange as it sounds i was happy to find this as i thought it meant i found the problem, replaced it with one that was not bent - still same problem! i then adjusted the spring tension down by 1cm on the driver side, and increased the spring tension on the passenger side by 1cm to see if it would even out, but it didnt however i think the passenger side did lift up a tad its almost asif the driver side wont go any lower? so now im lost as to what to check/fix/etc and need more advice cheers! Edited September 7, 2010 by snozzle Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/ Share on other sites More sharing options...
gotRICE? Posted September 7, 2010 Share Posted September 7, 2010 Sounds like the car could have been in a prang? Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5434601 Share on other sites More sharing options...
snozzle Posted September 7, 2010 Author Share Posted September 7, 2010 pretty sure it hasnt, ive got abit of experience with smashed cars and it definetely doesnt look like it, the wheel may have hit something but chassis wise the car hasnt been damaged/chopped up/welded etc Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5434607 Share on other sites More sharing options...
just_matt Posted September 7, 2010 Share Posted September 7, 2010 Are the suspension bushes binding up? If the bolts that pass through bushes were done up tight when the wheel was off the ground the bushes may not allow the control arms etc to swing upwards enough to allow the vehicle to sit right. You could try loosening and re-tightening all bolts that go through rubber bushes (while the vehicle is on the ground). Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5434623 Share on other sites More sharing options...
snozzle Posted September 7, 2010 Author Share Posted September 7, 2010 yeah i did up both sides bolts very tight then nipped them up slightly with a breaker bar haha but still, y would only 1 side do it? i tighted both sides up the same maybe i should put some grease on the contact spots Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5434626 Share on other sites More sharing options...
just_matt Posted September 7, 2010 Share Posted September 7, 2010 You could try raising the vehicle, loosen all bolts for rubber bushes enough so they can twist, lower the vehicle completely (weight on all wheels), check ride height Left and Right. If all bolts/nuts for your suspension bushes are slightly loose and it still sits wrong, then atleast you have eliminated a possibility. Its not how tight you have done the bushes up, but the angle of the control arm when you tightened them up, compared to the angle of the control arm when the wheel is loaded with weight. One may twist more due to softer rubber, age, cracks etc... Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5434651 Share on other sites More sharing options...
snozzle Posted September 7, 2010 Author Share Posted September 7, 2010 Good suggestion, i tried it a few hours ago, didnt work Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5435100 Share on other sites More sharing options...
DVS JEZ Posted September 7, 2010 Share Posted September 7, 2010 does it sag much when you sit in it? instead of adjusting the spring tension why not adjust the base height to make even? Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5435166 Share on other sites More sharing options...
snozzle Posted September 7, 2010 Author Share Posted September 7, 2010 well the base height is already at the minimum coz these coilovers came out of my old car (r34 gt-t) - only way i can dump it more is take spring tension off or possibly order in different springs from BC racing i dont feel good about masking up a structural problem so i wouldnt do that anyway even if i could, ive booked it into a suspension joint for tuesday but i wanna see if anyone has anymore tips on wat else i could try i have a feeling i will have to measure up the chassis if its bent around the strut top area ill get it straightened out next year when the motor comes out (if build plans dont change) its just odd because i dont suspect anything is wrong with the chassis, its a really straight car, underbody is very straight, clean and all original Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5435180 Share on other sites More sharing options...
blind_elk Posted September 8, 2010 Share Posted September 8, 2010 ...only way i can dump it more is take spring tension off ... That will RAISE the ride height.I vote for a twisted chassis. Wouldn't take much of a twist to introduce a 1.5cm discrepancy over the diagonal of the chassis. I'd get the car corner weighted to work out where the problem lies. Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5436228 Share on other sites More sharing options...
siamak Posted September 8, 2010 Share Posted September 8, 2010 (edited) Erm, by dropping the pre tension on the spring it definetely sits the car lower...? Ive been looking at the car abit more today looking for irregularities and the 90 degree bend in the sway bar sits slightly closer to the cross member that the other side but my dad rekons sway bars are almost never symmetrical anyway so its not very informative to go by that, ill try get some pictures up tonight though. Keep the suggestions comming guys, much appreciated! edit: woops i accidently posted from my mates account, using his pc cheers snozzle Edited September 8, 2010 by siamak Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5436580 Share on other sites More sharing options...
snozzle Posted September 8, 2010 Author Share Posted September 8, 2010 borrowed my panel beaters "is it square" tool and engine bay from the top is 100% square, doesnt quite rule the bottom side out though i know but i wanted to see anyway lol took some pics to show the difference in ride height - i dont wanna go any lower than the passenger side, happy with that.. but the driver side is too high and just wont goo downn lol will get some more photos of suspension components tomorrow if i get time cheers Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5437046 Share on other sites More sharing options...
blind_elk Posted September 8, 2010 Share Posted September 8, 2010 Erm, by dropping the pre tension on the spring it definetely sits the car lower...?Ive been looking at the car abit more today looking for irregularities and the 90 degree bend in the sway bar sits slightly closer to the cross member that the other side but my dad rekons sway bars are almost never symmetrical anyway so its not very informative to go by that, ill try get some pictures up tonight though. Keep the suggestions comming guys, much appreciated! edit: woops i accidently posted from my mates account, using his pc cheers snozzle Try it with the sway bar disconnected at the link pins. If the sway bar is loaded up on one side, then it could cause what you are experiencing.Is the surface you are measuring on absolutely dead flat? Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5437569 Share on other sites More sharing options...
snozzle Posted September 9, 2010 Author Share Posted September 9, 2010 Im going to take the sway bar off completely today. Yeah, no matter where i am, drive side front is always atleast 2cm or so higher than the passenger side. Definitely not the surface im parked on. Very annoying Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5437755 Share on other sites More sharing options...
snozzle Posted September 9, 2010 Author Share Posted September 9, 2010 Sway bar isolated and that also failed Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5437911 Share on other sites More sharing options...
blind_elk Posted September 9, 2010 Share Posted September 9, 2010 Rear bar as well? Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5438055 Share on other sites More sharing options...
snozzle Posted September 9, 2010 Author Share Posted September 9, 2010 You think i should try that too? hmmm dont see how that would make the front of the car any different? Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5438064 Share on other sites More sharing options...
GTTR34 4 door Posted September 23, 2010 Share Posted September 23, 2010 If the driver is in the car... Wouldn't the extra weight account for this 1.5cm??? Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5463074 Share on other sites More sharing options...
snozzle Posted September 23, 2010 Author Share Posted September 23, 2010 (edited) No definetely not, especially not with coilovers Edited September 23, 2010 by snozzle Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5463087 Share on other sites More sharing options...
GTTR34 4 door Posted September 23, 2010 Share Posted September 23, 2010 K cool was just checking. Interested to find out why as my 34 sits higher on passenger side... Link to comment https://www.sau.com.au/forums/topic/335907-front-left-and-front-right-ride-height-not-the-same-why/#findComment-5463126 Share on other sites More sharing options...
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