RockinHrse_98 Posted June 10, 2015 Report Share Posted June 10, 2015 I have had Bilstein HD dampers on all 4 corners and Maximum Motorsports front coilovers with 10-275 springs on my 98 GT for about 9-10 months, maybe 3-4k miles. It’s just a street driven car, with occasional aggressive driving on curvy roads, things like that. The car is not very low, but I have been having issues with the front wheels wanting to bottom out in the inner fender wells when I hit a bump on the highway. Every time I hit a bump, the driver side spring wants to dislodge from the upper perch and rattles against the adjuster sleeve until I jack up the car and re-seat it. Are my springs too short / too soft or something? Or is it because the struts are sn95 length struts? What's the deal? Here's a picture of how the car sits. Link to comment Share on other sites More sharing options...
95riosnake Posted June 10, 2015 Report Share Posted June 10, 2015 I run 12-350 springs on my front coil overs, 10" isn't as common to see up front. The only time mine ever come unseated is when the car is jacked up and the suspension is at full droop. I can't say for sure what is causing your spring to dislodge from the upper perch while driving though. Even over a bump, the shock should be collapsed enough that there's little room for the spring to come out. And really, even if you have shorter springs, that really just means you have your lower perch threaded up 2" higher so it shouldn't cause that issue. Maybe a stupid question, but the spring hasn't somehow snapped off a coil or something has it? Maybe a defective spring? That's a weird one. Regarding the fender rubbing, I'm guessing you mean you're contacting the fender liners? That's just how it goes on lowered sn's. My front fender liners have holes all over them. When I first did coil overs, I got quite used to the smell of burnt plastic as they "self-clearanced" themselves. Now the low hanging bumps are gone and there's no more rubbing lol. Link to comment Share on other sites More sharing options...
Det_Riot Posted June 10, 2015 Report Share Posted June 10, 2015 I'm with Dan, I never had an issue with my 10" springs unseating. If the coils don't look messed up, then I'd try running a limiter on thr front end like drag cars do Link to comment Share on other sites More sharing options...
410sn95 Posted June 10, 2015 Report Share Posted June 10, 2015 You could call MM as well. Link to comment Share on other sites More sharing options...
Josh@RideTech Posted June 10, 2015 Report Share Posted June 10, 2015 A 10" spring is a little short, but as Dan said, it shouldn't hurt anything. How much preload are you running on the spring? Measure the spring with a load on it and with the spring at free length. Some cars don't take a whole lot of preload on the spring, depending on the rate. If the spring you have, doesn't take enough preload to get you to ride height (basically meaning it's a little on the heavy side), the spring can come unseated when the suspension rebounds. Link to comment Share on other sites More sharing options...
RockinHrse_98 Posted June 11, 2015 Author Report Share Posted June 11, 2015 I run 12-350 springs on my front coil overs, 10" isn't as common to see up front. The only time mine ever come unseated is when the car is jacked up and the suspension is at full droop. I can't say for sure what is causing your spring to dislodge from the upper perch while driving though. Even over a bump, the shock should be collapsed enough that there's little room for the spring to come out. And really, even if you have shorter springs, that really just means you have your lower perch threaded up 2" higher so it shouldn't cause that issue. Maybe a stupid question, but the spring hasn't somehow snapped off a coil or something has it? Maybe a defective spring? That's a weird one. Regarding the fender rubbing, I'm guessing you mean you're contacting the fender liners? That's just how it goes on lowered sn's. My front fender liners have holes all over them. When I first did coil overs, I got quite used to the smell of burnt plastic as they "self-clearanced" themselves. Now the low hanging bumps are gone and there's no more rubbing lol. That's what doesn't make sense. And it is only on the driver side. I have to jack the car up every couple weeks and reseat the spring. I've taken them out a couple of times, but everything seems to look fine. Not broken and no marring like they're bottoming out or anything. Oh, and they're Hypercoil springs. Yeah the fender liners. I kind of had a feeling that was just what was going to happen haha. That part doesn't really bother me, , just a curiosity I'm with Dan, I never had an issue with my 10" springs unseating. If the coils don't look messed up, then I'd try running a limiter on thr front end like drag cars do Heck I've never really heard of it happening. It's only on the drivers side also. A 10" spring is a little short, but as Dan said, it shouldn't hurt anything. How much preload are you running on the spring? Measure the spring with a load on it and with the spring at free length. Some cars don't take a whole lot of preload on the spring, depending on the rate. If the spring you have, doesn't take enough preload to get you to ride height (basically meaning it's a little on the light side), the spring can come unseated when the suspension rebounds. Not really sure. I'll have to check that when I get the car back. Thanks for the tipsYou could call MM as well. I might have to do that. Just figured I'd see if anyone else had any ideas. Link to comment Share on other sites More sharing options...
OnyxCobra Posted June 11, 2015 Report Share Posted June 11, 2015 MM recommended 10" springs to me for street use, I'd be really surprised if that was the issue. I don't see how the spring could possibly be coming unseated though, you'd have to really hit a hell of a bump. Even then it should reseat itself like it does when you let the car down off jack stands. Do you have any pictures or anything of the problem area? I wonder if something isn't installed right. Link to comment Share on other sites More sharing options...
Zach Posted June 12, 2015 Report Share Posted June 12, 2015 Maybe that little piece of sheet metal up in the strut tower, that mm makes that little tool to bend down out of the way never got bent down? And it's getting hooked on the spring and pulling it off the seat? Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Shifty Posted August 20, 2015 Report Share Posted August 20, 2015 My car will be running 10'' - 400lb here in the next week. Ill report back any major findings. But that is the first time I have ever heard of the spring coming unseated on one side just going over normal bumps. Odd, but the first thing I would have done would have been to call MM Link to comment Share on other sites More sharing options...
Shifty Posted August 27, 2015 Report Share Posted August 27, 2015 Put the Coils on last night. Seems to be driving extremely well. No noises at all. Going in for alignment tomorrow so wont be pushing too hard until then. But I dont forsee my springs coming unseated. And they are the 10'' as well. So at this point I would call MM or take everything apart and redo it and see what you might have missed Link to comment Share on other sites More sharing options...
64bit_Tuning Posted August 29, 2015 Report Share Posted August 29, 2015 OP.... You need tender springs. period. Link to comment Share on other sites More sharing options...
Alex302 Posted August 30, 2015 Report Share Posted August 30, 2015 You can install a helper spring to keep the spring seated. http://www.redlinemotive.com/images/store/skunk2/skunk2-pro-s-coilover-1.jpg Link to comment Share on other sites More sharing options...
ttocs Posted August 30, 2015 Report Share Posted August 30, 2015 if your car is at the ride height in the pics I am not sure why you would be rubbing the fender liners short of a pretty darn big bump, or the ride is too soft. Link to comment Share on other sites More sharing options...
