Ok, Ive asked this inside of other topics, but wanted to know, cause the only 'vert-specific springs i can find are the racing beat ones, which are softer than stock in the rear.



Do springs made for the coupes fit on the vert?



If so, why do some specify that they arent for use on the 'vert, just because of weight differences?



I have heard good things about the eibach spring/kyb agx shock combo for more spirited street use, are there any other recommended combos that will give a bit more grip, reduce understeer, but still not be too punishing on the construction-riddled roads of jersey and NYC. Progressive rate seems to be the way to go for rougher road use. According to the Mazdatrix site, the RB and suspension techniques springs are linear, while the eibachs are progressive.



Are there any other progressive ones out there for the FC?



Finally, Im planning on replacing all the bushings in the suspension this summer. I have already swapped the control links, cause the vert was making the solid thunking noise over bumps (and it helped immensely).



Which other bushings tend to wear the most quickly, so I can tend to them first?



Does the DTSS bushing wear out or become softer, resulting in less toe control?



The way I understand it, the wheels toe out slightly with suspension deflection because the hub slightly twists due to the control arm, while the DTSS bushing deforms under lateral load to toe in the wheels. At a certain point, the toe out from the control arm equals the toe in from the DTSS bushing, making the net toe change 0. This would be the transition from toe out to toe in. However, if the bushing is deflecting more than it should for a given load (as it would when its worn out), wouldnt that begin to shift that transition point towards a lower lateral loading, and create more play in the wheel's toe?

coupe springs fit verts, I believe the back end will sit a tad lower then it would in a coupe, thats the only difference.

Ok, but if the back was lightened, or if the front was dropped a little bit more than the back, it would level itself out im guessing. What would be the best way to corner-weigh the car? its a bit heavy to use a bunch of bathroom scales FSAE style lol

I had been trying to figure our springs and shocks for my vert for about 2 months and was finally talked into the RB springs to go with the Tokico Illuminas that I had already decided on because of the vert specific option. So far the combo rides well and I am happy with it for the most part, I just would have like a little more height taken out of the car. There is a lot less understeer but I still need to get swaybars because the lean is still pretty bad. As for the progressive question, the Teins are also progressive, but no vert specific springs and they don't make any turbo specific FC springs either.

a lot less understeer? im a bit suprised given the tested spring rates posted on mazdatrix... now im confused. anything to take a bit of the understeer out.