canammx1 Posted January 24, 2013 Share Posted January 24, 2013 I have an 83 with sportmax xxr 002's. I am looking to put tokico hpk255 struts and 1" lowering springs on it. And polyurethane bushings. I have been hearing that I would have issues doing the poly bushings with the stock running gear. Will I need to upgrade anything else when doing these mods to avoid breaking anything? Alex Quote Link to comment Share on other sites More sharing options...
FricFrac Posted January 25, 2013 Share Posted January 25, 2013 (edited) The only issue is using urethane bushings in the TC rods. Keep at least one of the two the stock rubber (rear) or better yet go with the TTT adjustable TC rods - they are BEEFY! Edited January 25, 2013 by FricFrac 1 Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted January 28, 2013 Share Posted January 28, 2013 Go with the Technotoytuning TC rods. They will hold up to anything. Quote Link to comment Share on other sites More sharing options...
69sroadster Posted January 28, 2013 Share Posted January 28, 2013 I sandwiched new rubber tc bushings on one side and poly on the other side with no issues for probably 4 years now with a lot of autox and a few 15 min track sessions. I'd agree with the TTT TC rods if you don't care about the increased cost. Quote Link to comment Share on other sites More sharing options...
69sroadster Posted January 28, 2013 Share Posted January 28, 2013 I'm looking to just switch to the S13 suspension the next time I bother spending money on suspension parts. Not swapping entire rear suspension, but using the S13 coilover setup as described by cutting the zx front tubes and rewelding the lower section in place instead from the S13 kit. Quote Link to comment Share on other sites More sharing options...
FricFrac Posted January 29, 2013 Share Posted January 29, 2013 One thing a friend of mine pointed out - the TTT isn't a TC rod anymore. With swivels on both end there is no tension trying to hold the arm from "rolling" over so while the beefier arm will prevent deflection there is more stress on various other pieced because there is no tension on the arm itself... Quote Link to comment Share on other sites More sharing options...
(goldfish) Posted January 30, 2013 Share Posted January 30, 2013 One thing a friend of mine pointed out - the TTT isn't a TC rod anymore. With swivels on both end there is no tension trying to hold the arm from "rolling" over so while the beefier arm will prevent deflection there is more stress on various other pieced because there is no tension on the arm itself... That's the incorrect definition of tension for this. It still resists both the tension force trying to lenghten the rod, and compression that is trying to shorten the rod. Quote Link to comment Share on other sites More sharing options...
FricFrac Posted February 4, 2013 Share Posted February 4, 2013 The TC rod also keeps the arm from rotating - ball joints on both ends removes the tension in that vector Quote Link to comment Share on other sites More sharing options...
69sroadster Posted February 4, 2013 Share Posted February 4, 2013 Has anyone seen evidence with the TTT TC rods that the rod end has been trying to roll under/over its pivot and/or any lower control arm twisting fatigue? What forces acting on the control arm would be causing this? Would the disc brake torque load put a significant stress on the less controlled TTT TC/lower control arm/ball joint or would the upper strut assembly take the majority of that stress? I'd like to know before I change out my TC's and find some busted lower control arms or ball joints if any has done this swap before. Quote Link to comment Share on other sites More sharing options...
aarang Posted February 4, 2013 Share Posted February 4, 2013 I have had these on my car since they came out. No problems yet. They only have one heim joint on the fwd end to replace the bushings, and mount to the LCA like stock. I don't think there would be any twist with these, as it is a pretty long leverage arm. Quote Link to comment Share on other sites More sharing options...
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