06-15-2013, 02:45 AM
Join Date: Sep 2009
Location: Skokie, IL
Total Cats: 4
Things to do to temporarily compensate for less than ideal spring rates?
I just acquired a set of Tein SS coilovers that has 8k/7k springs on it to use on our budget track Miata build.
I'm sure we can all agree that those spring rates aren't ideal as it makes the car prone to oversteer (which some like, but I'm talking for the purposes of seeking neutral balance), and we plan on purchasing either a 9k or 6k spring to place the front or rear respectively. Tires are 15x7 Kosei K1's wrapped in 195/55/15 Star Specs.
With that said, I do know that oversteer/understeer characteristics can also be induced or corrected through sway bars as well as ride height (which subsequently affects camber settings). Until we change out one of the springs, which of the following do you guys think will do the best job compensating for the current rates in the meantime?
This is under the assumption that once we do have our ideal rates, we'll be shooting for the 949 race miata specifications:
4.25F/4.5R measured at the pinch welds, 1/4 inch of rake.
-3 degrees F camber, +4.7 caster, 0 toe
-2.6 degrees R camber, 0 or 1/8 toe-in
Until then, we intend on doing one or the combination of the following to neutralize the oversteer:
1) Lowering the rear to increase rear grip (-2.8 to -3 degrees rear)
2) Running less front camber (-2.8 to -2.6 degrees front)
3) Removing rear swaybar
4) RB Tubular front bar with 949 endlinks
All input is appreciated, thanks in advance!