Best springs for Koni adjustables?

[Casey]

Eibachs are the go. They are also a bit low on the front, so you will have to make up some spacers for the NB and trim the bumpstops.

Check my cardomain page on the subject.

[Okibi]

Eibachs seem to be the best combo with Konis on the NA, NB shouldn't be too different.

[Casey]

Eibachs are the go. They are also a bit low on the front, so you will have to make up some spacers for the NB and trim the bumpstops.

Check my cardomain page on the subject.

You don't have any diagrams for those spacers do you?


I've also read in the Miata forum that EIbach's have a excessive tendancy to sag. Is something that anyone here has experienced?

Also, are the Eibach's a linear rate spring? Do people think the fact that the King's progressive rate is probably the reason that they have such a crashy ride?

Sorry no diagram, but the spacer ID is the same as the damper OD (no sh*t Sherlock ) and the OD of the spacer is just whatever the OD of the stock was - about 5mm or so greater then the damper OD should be fine. Also, to get an idea of the relieve you need to machine into the the inside of the spacer to retain the circlip, simply look at the spring platform where it would sit on the circlip sans the spacer and you will get the idea.

Eibachs shouldn't sag - certainly none of mine have over the yeasrs. I think they are one of the best for not sagging due to their manufacturing methods (cold wound??) and high quality materials. You get what you pay for.

All Eibach Pro-Kit springs (what you will be after for the Konis), so I've been told by the Eibach rep, are progressive rate. However it is important to know that as the MX5 suspension travel is very short, the progressive bit of the sping is already in compression at rest, and therefore doesn't really come into the equation in normal driving (unless perhaps you manage to get the car airborne over a big hump )