Starting with this thread:
http://www.locostusa.com/forums/viewtopic.php?f=5&t=5992&hilit=miata+bump+steerI just found myself in a very similar situation. I'm using a circle track rack and the plan was to use Chevy tie rod ends with 5/8 tubes. Well testing the suspension and having one of the tie rods get cross threaded and buggered up I found I have a problem. The tie rod ends were limiting the suspension prior to full droop not a good thing.
Looking for a cheap and effective way of fixing bump steer and the suspension bind I bought some more circle track stuff. 5/8 hemis with bump steer studs. They have a taper on one end and allow for adjustments to bump steer.
So I purchased this hoping it would fix the suspension limit issue and found that it did not. The problem is the miata steering arm is at an angle, 7 or 8 degrees. This means the hemi joint is at maximum deviation just at ride height.
I found this image
on this thread.
http://www.locostusa.com/forums/viewtopic.php?f=5&t=6860&p=68488&hilit=miata+bump+steer#p68488 and it looks like blue devil just used a high misalignment hemi. Looks like a McMasters 6960T31 hemi to be exact which has 64 degrees of ball swivel versus the stand 12 +/-. Also more on the hemi joints from this thread.
http://www.locostusa.com/forums/viewtopic.php?f=5&t=4894&start=0I was playing around with making an adapter to correct the single with something like this:
but came across this thread:
http://www.locostusa.com/forums/viewtopic.php?f=36&t=4322 Mazda powered bugeye sprite. Bugeyebug posts
Quote:
We did have to modify the miata spindles a bit more, however. Besides reaming out the upper piece to accept the larger ball joint, we had to tweak the steering arms a bit to better align with the steering rack. We basically heated up the arm and then took a large wrench and nudged it up into alignment. Let it cool down slowly and its good to go. Nice forged miata spindles let you get away with stuff like this
So my question is do I A:just buy High Miss Alignment Rod ends, B: Make an adapter to correct the spindal or C: Heat and twist the spindle to make it work?
evo