Doc-1

iTrader: (2)

For the FD model run Mazda made Mazdaspeed springs that you could use over your OEM shocks or even a set of Mazdaspeed shocks. Does anyone have any information on these springs? I know Eibach made them but little else. I am looking for the spring rates of these springs and any other facts.


Many Thanks

gracer7-rx7

iTrader: (16)

Mazda does that for lots of models including the current Miata and RX8 and Mazda3, Mazda6 etc.

I personally don't have further details but I'd suspect they are about 20% stiffer and slightly lower. I remember reading about them somewhere but memory fades....

Brent Dalton

iTrader: (31)

Mazda still sells the Eibach Pro Kit which are a little stiffer than stock springs, can be used with stock struts, and lower the car ~1inch. Do you have a picture of the springs? If so, you could prob. compare them to the pro kit.

purerx7

iTrader: (61)

Hey Doc! Guess you received the springs I got you? Here are the details on them:
Joint development with Eibach, Double rate type, Spring rate (N/mm <kgf/mm>) : (Fr)37.7 <6.9> (Rr)50.0 <5.1>, Ride height 25mm lower than Stock

Brent Dalton

iTrader: (31)

Yep, I think those are the Eibach pro kit that Mazda Motorsports still sells. 25mm=0.943inches or so and the same spring rates.

Doc-1

iTrader: (2)

Yep I did recieve the springs....They are in mint condition I must say
Many Thanks