HiTech Posted June 2, 2014 Report Share Posted June 2, 2014 (edited) our 79 regal has this problem with crushing the right rear spring it is probably three inches short after 3 races and showed up after our first practice a few weeks ago i have not pulled it yet .springs are new stock over the counter 14by 75..anyone who has seen the green 8 at kyle may have noticed it the last race .i know nick did from way up in the booth ... i have checked all the trailing arms and none are worn or bent as i can tell during the rear end change last week ..but then again i am not used to this chassis typ .tps ford leaf i can pick a problem easily .this one has me stumped .the springs front and back are stock .sway bar 1 inch not loaded ... Edited June 2, 2014 by HiTech Quote Link to comment Share on other sites More sharing options...
NickHolt Posted June 2, 2014 Report Share Posted June 2, 2014 What is the spring rate and what is the motion ratio squared? Also, is it a pig-tailed spring? Is it mounted in a spring bucket with weight jacker? If not, how is it mounted. If you don't want to give away all your speed secrets, PM with the info on rates and motion ratio. Nick Quote Link to comment Share on other sites More sharing options...
top_shelf_12 Posted June 2, 2014 Report Share Posted June 2, 2014 Right up Nick's alley. Hope you guys get it figured out. Quote Link to comment Share on other sites More sharing options...
HiTech Posted June 2, 2014 Author Report Share Posted June 2, 2014 (edited) the only speed secrets we have is in the driver and he aint talking lol......... nick ill check that out when i unload it ...the bad part is we are limited to stock springs ..and this problem cant be fixed with just going out an buying racing springs out of the question . they are pig tailed and located on stock mounting points no jacks or spacers and such .. we really did not have this problem as bad last year .i dont know what changed unless the older original factory springs are a better steel ..ill check the thickness of an old set to the new ..but i know that is a grey area .. Edited June 2, 2014 by HiTech Quote Link to comment Share on other sites More sharing options...
NickHolt Posted June 2, 2014 Report Share Posted June 2, 2014 If you have an older Moog catalog you really don't need to buy racing springs. They have (or at least used to have) every spring available for just about every passenger vehicle/light truck. Not sure about their newer catalogs, but the old one used to give spring free heights, spring diameters (both inside and outside), number of coils, wire diameter and rate. Everything you need in order to make the proper spring selection as long as you know what you're looking to buy. PS Whoever borrowed my old Moog catalog and never returned it, please be a good guy and return it. Thanks. Nick Quote Link to comment Share on other sites More sharing options...
HiTech Posted June 2, 2014 Author Report Share Posted June 2, 2014 (edited) i looked through our system at work ..the car came with two different set of springs .v6 .v8 ours was a v8 i may have bought the v6 seeing i did not look them up myself and had em brought over from another store through the commercial system ...sooooo.... Edited June 2, 2014 by HiTech Quote Link to comment Share on other sites More sharing options...
JUMPSTER93 Posted June 3, 2014 Report Share Posted June 3, 2014 You can buy the double pigtail style springs from Speedway Motors in different spring rates that fit in place on stock a metric chassis. http://www.speedwaymotors.com/Tru-Coil-Street-Stock-Rear-Coil-Springs-7-x-14-Inch,168.html We ran these in a pure stock. Quote Link to comment Share on other sites More sharing options...
fastman Posted June 4, 2014 Report Share Posted June 4, 2014 Set the car on jack stands between race nights and every time the car will set for more than an hour. That will help the springs last longer, I have run the same type suspension for years and have had similar problems but not 3 inches. Quote Link to comment Share on other sites More sharing options...
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