ryan031581

I am considering moding my 8 to reduce some body roll. It is my daily driver, and not used for racing or Auto X. I live in a town with a lot of pot holes, bumps, and dips in roads.

I don't want to bottom my car out. I don't want to mess up my warranty. I know the whole spill about proving the mod caused the malfuntion etc...

I am seriously considering MS springs & shocks or Tein basics. Or just maybe MS sways. The ride on these roads around here are pretty rough on the 8. There is a lot of rattling going on. Hopefully when i get the greddy sp2, I won't hear the rattling. I am perfectly okay with a little rougher ride, but I don't know about the 8.

I know the drop with the MS springs is 20 mm, and Tein is adjustable. I know quite a bit from searching, and it sounds like there is no straight forward answer to what the best option is. To each his own. Sort of like the ever so popular question on this forum "What is the best exhaust?". I guess I just have to weigh out adv vs disadv.

Any recommendations are appreciated from people with these mods. thanks

DOMINION

Bump for a great find! thanks

diabolical1

pretty good read so far. kudos to you Speeddemon32 for compiling this and moreso for bring the MS units to question. it certainly does appear that aftermarket springs and struts are a waste of time for someone like me that detests form without function. i guess coilovers are in the future for my car.

thanks.

DOMINION

OK so I'm looking at buying a set of Swift springs. My question is: I think the drop is 0.8" is that a 1" drop? and is if not whats the drop for all fours come down to inch wise? This way I can go out to my car with a ruler and see how low its going to sit.
2004 AT og with 16" wheels now have 18"
Thanks,
-Gil

speeddemon32

I dont have any info on Swift, but if you find it, please let me knwo, I will update it.


and your welcome diabolical, thanks for the compliments. its nice to see the hard work is helping people out. I just wish I had all this info in one place when I was looking. (thought I still would have gone with the Sprints. I just love the drop!)

Keef

Swift

price: (ebay it!) 170
drop: .8 all around
feel: it's like that magic anti-body roll spray that I give my tires!

DOMINION

^So 0.8" is 1"&1/2 right? and yeah they will not help with "anti-body roll" as I have vid the white Swift GT-34R drifting on the track out here in Vegas.
If you want to reduce the body roll get sway bars.

WBRxGreat

hello everyone, I have read through this thread and have become quite confused. I just found a great deal on new mazdaspeed springs on ebay, however after reading what some of you have said they are falsely advertised in spring rate? The actual ride height doesn't mean the world to me, I'm more so interested in getting a more aggressive spring rate. I have no interest in placebo effects, and am curious as to if anyone else with a set of mazdaspeed springs can verify the very low rates recorded a while ago by another member.

If they really aren't all that aggressive, I think I might just say screw it and get the Tein basics.

devildog1679

As you can see I have the full MS set-up. I can tell you from on track and off track experience there is a big difference. I ran my 8 at Road America in both stock form and moded form. Handling was night and day.

WBRxGreat

So do you think that maybe speeddemon just got a bum set of springs then? I'd be happy if that was the case. I donno I'm just trying to make a good decision. Ahhh I want these springs and only have like a day left before it expires at this price

devildog1679

They are definitely stiffer then stock but how stiff in terms of #'s I don't know. I got the MS set-up because they were meant to work together, they compliment each other nicely.

speeddemon32

the stiffness you guys are feeling could be comming from the struts... ??? (it sounds to me that the people above have also replaced the struts.) When I replaced my springs I didnt notice any change. when I replaced my struts I felt a big difference in stiffness.... though I went with koni yellows.

I am more then willing to test anyones springs if they live in the area (you come here, no I am not interested in shipping springs back and forth).... ..... I live in So Cal.

When I spoke to Mazda Motorsports Development about them they said that Mazda has never released anything on the rates of the springs. and that they are advertised as lowering springs, not stiff springs.

from what I have seen (which you can all read about in this thread) all the lowering springs are close enough to stock rates to not make it worth buying it just for the rates. just buy the spring that has the drop you want.

If you want stiff spring rates, then you need to go with coil overs.


also a friend brought me his Vogland (spelling) springs. I have them sitting in the garage, I just need to test them out. I will post the results on this thread when I do it. I suspect they will be close to the factory rates as well....

WBRxGreat

interesting. Then I'm 100% going with coilovers. Thanks for all the input, i'll let someone else get those mazdaspeeds i saw on ebay then lol

speeddemon32

added info for the Vogland springs

shaunv74

Espelir Spring rates from Endless Rotaries.

https://www.rx8club.com/showthread.p...hlight=espelir

speeddemon32

thank you, I will add it now.

LionZoo

They're softer than stock?

speeddemon32

yes.

LionZoo

Didn't Den say they were stiffer earlier in the thread?

speeddemon32

... I dont know... he might have??? .... but there not. :-/ (these were his springs I tested)

it was either Placibo, or it was the stiff *** Konis making his car stiff. I know when
I installed my Konis it was a HUGE difference. but when I had the lowering springs with the stock struts it was really no different... now I know why.

when I raced Denwards car two months ago, I mentioned to him that his car felt just like mine.... now I know why, we both had Konis and we have similar springs. (meaning neither one of them was really all that stiff over the other)

I dont remember what sway bars he has, but none the less his car felt much like mine. it was nice!

Now I want to feel his car with the coil overs, I bet thats a fun ride now! (I dont remember what spring rates his springs are now, but I am more then sure they are WAY stiffer)

(by the way, thanks Denward for letting me race your car that day. that was very nice of you!)

gh0st

as soon as i get my car back, your welcome to it again. im sorry its been out of commision

speeddemon32

dont say sorry... its YOUR car. but thatnks anyways! I hope you get it back up and running soon. the dealer had my car for 3 weeks when they did my tranny.

ronniexDx

Hi, today i installed the Mazdaspeed sport springs on my rx8, and i must say i am confused. There is no noticable difference in the cars ride quality (supposed to be stiffer, but feels the same) and the car was supposed to be lowered 20 mm, but again there is no noticable difference (i know i should have mesaured before installing to comapre ) I called the mazda dealer and he said i gotta give some time for it to settle down. Is this true?

shaunv74

Does it corner better? Yes it should settle. You should have it re-torqued after a week or so of driving

Make sure they torqued the suspension bolts down with it on the ground not in the air with no weight on the springs.

ThecdnRX8

speeddemon32 are all those springs rates on pg 1 tested by you? I am looking into RB springs but I have a big problem trusting any manufacture about their spring rates. In fact if you look on RB's website they do not state their springs rates did the tech people at RB give you those exact rates?

You talk about coilovers being the way to go if you want stiff springs. Are there any coilover system that lets you choice our own spring rates. I know Ground Control has these systems for BMW's and VW's, but I haven't come across one for the RX8. If there isn't coilovers might disappoint you in the same way.

Keep on testing