racerx260 Posted July 21, 2006 Share Posted July 21, 2006 I saw an ad in motorsport for a kit to increase castor up to 3 degrees.Looks like an extention for the radius rod. Any opinons?I could sure use more high speed stability and centering, as well as outside wheel camber change in turns.I think thats what you get from more castor.It apparently would flex the control arm forward some and put a tweek on the pivot bushing. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted July 21, 2006 Share Posted July 21, 2006 This has been dealt with a lot on this site, but you bring up a new issue I think. I haven't seen this motorsport caster kit. The only thing I've seen from them is the G Machine aluminum/delrin kit like the one here: http://www.thezstore.com/page/TZS/CTGY/PSDC10 I believe stock caster is about 2.5 to 3 degrees, so what you're describing isn't adding a whole bunch of caster. I'd like to see what it is that they're selling, if you have a picture or a link that'd be great. You're correct that increasing the caster does put some bind into the front suspension, best way around that is to use a heim's jointed front control arm. There are other options available too, techno toy tuning has heims jointed TC rods, as does arizona z car and there was a group buy on some about a year ago made by a guy in Oregon. Lots of guys have made their own too. I've gotten pretty in depth with the TC rod myself, and modified the pivot area on the frame quite a bit. You can see that here: http://forums.hybridz.org/showthread.php?t=106974 I also wrote a FAQ about modifying the TC rod here: http://forums.hybridz.org/showthread.php?t=107794 If that doesn't give you enough info, search. It's one of the recurring issues that comes up with the front suspension on the Z, and it has been discussed a bunch, with different opinions and solutions offered. Quote Link to comment Share on other sites More sharing options...
racerx260 Posted July 21, 2006 Author Share Posted July 21, 2006 Its on page 99 of the most recent motorsport catalog.I could find nothing about it on their web sight.Sorry I'm too stupid to post a picture. Quote Link to comment Share on other sites More sharing options...
racerx260 Posted July 21, 2006 Author Share Posted July 21, 2006 What they show is a section of rod that screws over the stock tc rod end and then reduces back to stock size to extend its length.It may be increasing caster 3 degrees not totol 3 degrees. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted July 21, 2006 Share Posted July 21, 2006 Can't find my catalog. Does it adjust, or is it just an extender? Here's one solution that sounds similar to what you're describing, except it is on a tie rod: I also have seen people run a die down the TC rod (it's almost perfectly 5/8") and use a short turnbuckle that's only about 4 or 5" long. I tried that myself but my TC rods were bent and I couldn't get the die to run straight. A friend of mine ran a setup like that for years on a 510 with no trouble. The idea is sound, but like you said yourself you have to watch that control arm bushing to make sure it doesn't get tweaked. I put on adjustable TC rods then when I adjusted them I immediately realized I needed the control arm upgrade. Quote Link to comment Share on other sites More sharing options...
racerx260 Posted July 21, 2006 Author Share Posted July 21, 2006 It would be like a stock one you could use spacers in the bushings or a jam nut where it threads over the stock rods threads.That would shorten your over lap maybe make it weaker. Quote Link to comment Share on other sites More sharing options...
racerx260 Posted July 21, 2006 Author Share Posted July 21, 2006 Its intended to be an extender I think.Very simular to the tie rod in the picture. Quote Link to comment Share on other sites More sharing options...
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