I've been on a search for coilovers for an STX build, and the Eibach stuff caught my eye. Unfortunately, there is very little info on Eibach's website on this, so I called Eibach and learned the following:

- Monotube.
- Spring rates: 400/275, linear ERS springs both ends, with helper springs, both ends.
- Front damper adjustor is at the top of the shaft, and is a continuous adjustor (didn't ask how many turns).
- Rear adjustor is at the bottom of the shock body, and has 10 clicks of adjustment.
- I asked about the range and was told "pretty wide."
- They are rebuildable (the Pro-Street S is not).
- Re-uses the OEM shock tops.

I was also told the independently-adjustable compression/rebound R2 would be available for the RX-8 soon, but would be much more aggressive with the rates/valving.

This is all just info I gleaned over the phone, so no promises that it is 100% correct. At their price point, they seem like a reasonable alternative to Bilstein PSS9, Stance etc. Of course, I can't speak for the quality of the internals.

I'm not sure if I'm going to go this way myself, but I thought somebody might find this info useful.

 

George,

What's the price of a set and where is it available from?

 

TireRack sells them for $17xx, but I found them at a website I had never seen before for $14xx (If you google "Multi-Pro R1 prices" or something like that you can find the site).

I'm not sure what Eibach's warrenty policy is on internet purchases, so buyer beware on that last one (I'm sure TireRack is fine, though).

 

Thanks George. Definitely another option to consider - spring rates look quite decent for STX needs.

 

From personal experience I ran Eibachs with KYB's GR2 on my Mazda 626 and it was AMAZING. Never had any problems aside from memory steer, but that happens often when you lower a car.

 

Thanks for the feedback White Shadows, but this thread is about a complete Eibach spring/shock setup:

http://eibach.com/cgi-bin/htmlos.exe...32477700008371

Glad to hear the Eibach springs worked well with the KYBs, however.

 

I have no personal experience with Eibach dampers, but I've seen some Miata users complain about premature failure with the "R1" coilovers. Eibach springs are great, though.

 

I heard the same thing as well. These were even used for the first season of MX-5 Cup. Some of the teams joked they would fail while rolling the car off the trailer.

 

Interesting, thanks for the feedback. I was also looking at Mazdaspeed, which I do believe is based on the R1s as well.

 

KW Variant3

 

Yeah, I'm considering those, but they are a bit pricey. Let's see what the stock market does in the next few weeks...

 

https://www.rx8club.com/rx-8-parts-sale-wanted-44/wts-mazdaspeed-coilovers-broken-168916/

 

http://www.therpmstore.com/product_i...343cul9usi89t6

 

Ouch. Thanks for the references, Team. I'd like to see a close up of the snapped shaft - I bet it's a fatigue failure, and that's not good. I wonder if running without helper springs somehow caused the problem. Or perhaps an upper bushing that was over-tightened, resulting in overly-high bending forces in the shaft as the suspension moves through it's range of motion.

And, thanks for the reference on price for the KWs. I wish those came with a standard, linear rear spring, however. Would make tuning easier. Do you know if the adapters that Goodwin sells would work with the KWs?