shaunv74

Sure. There are some DIY's here on the forum. Look in the DIY section. You will need to get an alignment done after you install them. If you're going to swap springs do the shocks at the same time. You'll do all the work to take them out as well so you might as well put in some Konis or Tokicos.

Renesis 27

I know alot of you have Tein S springs, but idk if thats the right springs for me. I have a 2004 GT Rx8. Im looking to drop the car about a half an inch or a lil more in the back and about an inch and a half in the front, but I want springs that don't effect ride quality or if there are none, ones that barely affect it.

Razz1

you want racing beat. Perfect ride. 1/2 inch drop all the way.

A different drop up front vs rear screws up the handling.

Renesis 27

The only problem with half inch drop is that it will be perfect for the back end...but the front is much higher than the back, and a half an inch drop im afraid will not close the gap inthe front like id like it to. Ne suggestions? I mean how bad does it screw up the handling?

speeddemon32

I think your best option as far as your ride height is to look at pictures of peoples cars. see what they ahve installed.... then you will know what it will look like on your car.

dont pay to much attention to the advertised drop. what they claim and wha you get are not always the same. just go off of pictures of people that have already done it.

Ride quality on all the springs listed in this thread are going to be pretty much the same. as you can tell by the spring rates listed on the first post there is not much change in the rates. no spring is really all that much stiffer then the next. (not untill you go with coil overs.


I had the sprint springs, they are pretty much the lowest drop you can get. I loved them. and even those had a pretty soft spring rate. the ride quality did not get poor untill I put the Koni struts in... then it got stiff!

hope tht helps.

Renesis 27

That helps alot. Thanx. Is there a thread that has pictures of various kinds of lowering springs to show the drop amount and wheel well gap? I think im going to go either with Tein S, Eibach or Racing Beat. Also what does it mean when you say progressive compared to regular ones?

shaunv74

If you are looking for drop more than track performance I would suggest the Eibach and then go with the Tokico D-spec shocks.

What I've found is that to much drop with too soft a spring will have you bottoming out your suspension in hard cornerning. See my Espelir spring thread linked in my sig.

Progressive: A progressive spring rate that starts out softer in the first 1/3 or so of travel and then progressively gets stiffer as the spring compresses more. This is how some spring manufactures keep the ride soft for street use but keep it from bottoming out with a big drop. The downside is if it's not designed well (like in my Espelir case) the soft rate is too soft and ends up binding together and bottoming out too much over bumps or during hard cornering. The net effect being the spring is almost always getting into the stiffer rate and your ride is actually worse.

Regular (Linear rate): Means the spring rate is constant through the entire range of compression of the spring. This is better for track use as it's more predictable and the design is less complicated. The downside of this is with a significant drop in ride height you'll need to crank up the spring rate to avoid bottoming out your suspension as you have a lot less travel.

I would recommend for you, assuming you want street use, a progressive rate spring but get it with the high pressure shocks (Tokico) rather than the low pressure (Koni) shocks and get a combination that has been proven by someone else to work well.

I made the mistake of putting a cheaper progressive street spring with my Konis and now they have sagged and the coils sit compressed on top of each other at rest! I didn't realize (and the manufacturer didn't tell anyone) that they needed high pressure shocks to augment their soft spring rate.

speeddemon32

^^^^ yup... what he said.

if your looking for a nice drop and your not a canyon carver, cone killer, or a track monster, then dont look to much into it. Just get yourself a spring that looks like the drop you want.

meaning unless your someone that regularly pushes the car to the limit, dont worry about it to much. Just get the drop you want.

shaunv74

Oh and I would recommend buying them from Charles R. Hill. He's been a huge supporter and trailblazer in the RX8 community and has gone in to business for himself based solely on his business with us in the RX8 world. He'll provide you first class support and service and help you pick out the best combo.

And you'll be giving back to the RX8 community.

Renesis 27

Im thinking with going with a progressive spring. It sounds like what i want. I might go with H&R. They have a 1.2" drop and a good spring great as well as being progressive. The only thing is im worried aout the back wheels being to close to the fenders because the back is lower than the front. The front would be perfect with a 1.2" drop I think.

shaunv74

It's fine. My rears are about 1.5" lower (26" to the hub from top of fender) and they don't rub on the wheel wells or fender edge. Just the spring coils.

Renesis 27

So am i going to be rubbing the coils or nah?

shaunv74

Only if you buy crappy ones like I did.

You should be fine with the Eibachs or H&R. Especially if you go with the Tokico shocks. Charles R. Hill can confirm for you if you PM him.

Also PM Swoope as he has the Eibach/Tokico setup.

Razz1

Thats not true!
You need to measure the frame height. The wheel wells are an illusion.

Please do your research.

swoope

iTrader: (5)

note to all..

i have not corner weighted at all. but i am working on raising my rear by ~ .25"

btw my combo is sound..

beers

Footman

iTrader: (2)

According to Eibach's website, the Prokits are now 1.2" front and 0.8" rear.

Was this a typo from before or did they actually change it?

swoope

iTrader: (5)

who knows,

but it is not accurate..

beers

speeddemon32

they must have changed it. I will correct it.

nycgps

iTrader: (1)

Trying to find a pro shop in NYC who can do corner weight on my car.

and I want to raise it by maybe 0.25" too. Damn NYC roads.

Eight

iTrader: (2)

heard the autoexe springs are made by espelir. I read somewhere they have similar drop and rate. can anybody confirm?

edfred

did anyone commit those 1.2 and 0.8 drop by the Eibach ?
That sounds to be the perfect drop i want. Together with the bilstein shocks it will be a smoother ride.

br,
EdFred

swoope

iTrader: (5)

eibach will give you 1.2 front and rear. i have them and several other got the same thing. i am in the process of raising the rear slightly..

beers

swoope

iTrader: (5)

update,

rear raised.. much better. and those looking for the swifts..

https://www.rx8club.com/showthread.p...54#post2700854

beers

Michael's8

speeddemon32,

For someone who is as "into" springs as you are, I don't understand how you could sell me Sprint springs last year that don't fit the car! I'm not sure what car you took these off of, but it wasn't an "8".

Check this thread for details of the sale:

https://www.rx8club.com/rx-8-parts-sale-wanted-44/fs-all-my-rx-8-fun-parts-intake-pulleys-flywheel-springs-more-124329/

I realize it's been a long time since I bought these. I fully planned on installing them myself, and doing so with my 18 year old who's totally into cars. Thought it would be a great bonding time with him. But an Iraq deployment among other things, derailed those plans. Finally, yesterday, I dropped my 8 off at the Mazda Dealership. They just called. They said the springs don't even fit over the struts. I told them the springs were made specifically for the 8 (which I was led to believe through your ad and through PM's you and I had), and told them I thought they might be missing something on the install. I told them I'd call Sprint directly and see what I could find out.

The springs I bought from you were blue (like my 8, which I thought was cool), and we spoke in PM's of trying to be careful with them so they stayed in good shape so they'd look cool on the car when they got here). They arrived in a Sprint box which sat in my garage until yesterday.

I called Sprint today and was told that Sprint does not make blue springs for the 8, nor have they made a blue spring for the 8. I called the dealership back and told them that they were right, that the springs they have are not for an 8. I'm not sure what kind of car they are for, but they're not what I was supposedly buying from you (for my 8).

To make matters worse, the dealership is going to charge me for the time their mechanic spent taking the old springs off before realizing the part was wrong, and then having to reassemble everything. I think they said it was going to be $150 labor. (They normally get $120 per wheel from what I was told).

I will be happy to post copies of our PM's regarding this sale if you need me to remind you of it.

You seem like a good guy. I am not saying you tried intentionally to screw me on this deal, but I'm having a hard time understanding how this could have happened.

At this point, I'm out $285 (between buying the springs from you and now paying someone to try to install a part that doesn't fit my car).

Help!!!!

Jedi54

iTrader: (7)

whoa whoa whoa, hold the phone here. I know Speeddemon32 and have known him for years how and I can assure he would never sell you the wrong springs intentionally.

Who did you talk to at Sprint because according to my Google search, Sprint did in fact make springs for our cars: (and they look blue)
http://images.google.com/imgres?imgu...n%26safe%3Doff


I then went to Sprint's website: www.sprintspring.com and that product number matches what THEY have listed as RX-8 springs: http://www.sprintspring.com/c-17-mazda.aspx


I'm sorry to hear that the mechanic wasn't able to install them properly and this might sound like a stupid question but: are you sure he was trying to install them on the proper strut? (front / rear)