Eibach Pro Springs
03-07-17, 09:02 AM
#1
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Eibach Pro Springs
Searching online, I've found a few vendors that claim to sell the Eibach Pro springs for our FCs that have been discontinued for about four years now.
Is this a part where we need to be mindful of counterfeit parts?
My understanding is that the Eibach Pro was a progressive spring, providing a better ride when not being driven aggressively, compared with the Racing Beats or the Tanabe, Tein, ect. Is that accurate?
Is this a part where we need to be mindful of counterfeit parts?
My understanding is that the Eibach Pro was a progressive spring, providing a better ride when not being driven aggressively, compared with the Racing Beats or the Tanabe, Tein, ect. Is that accurate?
03-07-17, 10:54 AM
#2
The vendors that have it listed likely are just drop-shippers and don't actually have the parts. Usually you'll get no parts and a refund, but I've never heard about counterfeits.
That is the intent of progressive rate springs. In reality, the shock valving is much more important to ride quality.
That is the intent of progressive rate springs. In reality, the shock valving is much more important to ride quality.
03-07-17, 07:36 PM
#4
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I love my racing beat springs, and also are paired with KYB adjustables. Its a really nice setup, It takes most of the wheel gap out, but not to low where you cant pull into parking lots and over speed bumps.
03-07-17, 08:03 PM
#5
RX-7 Old Timer
I have the discontinued pro kit springs on otherwise stock suspension, and they allow too much body roll in my opinion, at least in autocross. They are pretty good on the street- a bit more aggressive than stock.
03-07-17, 08:31 PM
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I loved these on my d10s and blazer...I have a used set I am picking up used with Tokio struts and shocks for 100 bucks...hopefully installing this weekend. Bit yea they discontinued these about four years ago be wary of any "new" ones
03-07-17, 09:42 PM
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That was the intent, but most people who tried them had the same impression as described above by ColinShark. My personal opinion is that Racing Beat springs + KYB AGX or Tokico Illumina dampers is the best setup for street and autocross driving. I also recommend replacing the old crusty rubber mounts and bushings at the same time, and since this is such a pain the the rear it is a good idea to hire a professional shop to install the new bushings and install the springs and dampers while they are at it.
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03-11-17, 08:21 AM
#8
Here is my $0.02 on Eibach Prokit springs
I have Eibach prokit turbo springs on my 90 Vert, along with Tokico Blues for over 12 years. This is combined with stock Vert swaybar setup.
I have Racing Beat springs with KYB AGX on my 10th Anniversary.
The Prokits are a huge upgrade in sophistication/ride quality compared with OEM springs. They make the car feel $10,000 more expensive. Impact harshness is greatly reduced. The handling is great for touring. You can definitely feel the softer (than stock) initial spring rate compress, then feel the much firmer (than stock) main spring rate bite when you put the car into a turn. It works pretty darn well in real life cornering where the road surface is imperfect or slightly bumpy. It is quite predictable, but it is NOT a set up for autocross or racing. Maybe think of it as a very nice setup for 7/10ths. At 10/10ths you won't like it. Reality is you should never be at 10/10ths on the street and most people aren't capable of driving 10/10ths on a track, me included.
The Prokit springs would probably work a little better with better/firmer shocks. I have another set of AGX's intended for the Vert, but just haven't gotten around to making the change.
I would like to have Prokits on my 10th Anniversary as well. I like them that much.
I have Racing Beat springs with KYB AGX on my 10th Anniversary.
The Prokits are a huge upgrade in sophistication/ride quality compared with OEM springs. They make the car feel $10,000 more expensive. Impact harshness is greatly reduced. The handling is great for touring. You can definitely feel the softer (than stock) initial spring rate compress, then feel the much firmer (than stock) main spring rate bite when you put the car into a turn. It works pretty darn well in real life cornering where the road surface is imperfect or slightly bumpy. It is quite predictable, but it is NOT a set up for autocross or racing. Maybe think of it as a very nice setup for 7/10ths. At 10/10ths you won't like it. Reality is you should never be at 10/10ths on the street and most people aren't capable of driving 10/10ths on a track, me included.
The Prokit springs would probably work a little better with better/firmer shocks. I have another set of AGX's intended for the Vert, but just haven't gotten around to making the change.
I would like to have Prokits on my 10th Anniversary as well. I like them that much.
03-11-17, 10:23 AM
#9
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off the top i think stock springs are 1.9kg and the eibachs were 3.4k and 3.2k, so its stiffer, but not anywhere near what we'd run in a track setup, which is more like 8k/6k.
if the stock setup needs to work for anyone, the Eibachs are probably more focused to the enthusiast who isn't racing.
i believe it lowers the car 25mm, but this is off the top, i've posted the lengths and rates before.
if the stock setup needs to work for anyone, the Eibachs are probably more focused to the enthusiast who isn't racing.
i believe it lowers the car 25mm, but this is off the top, i've posted the lengths and rates before.
03-12-17, 09:54 AM
#10
off the top i think stock springs are 1.9kg and the eibachs were 3.4k and 3.2k, so its stiffer, but not anywhere near what we'd run in a track setup, which is more like 8k/6k.
if the stock setup needs to work for anyone, the Eibachs are probably more focused to the enthusiast who isn't racing.
i believe it lowers the car 25mm, but this is off the top, i've posted the lengths and rates before.
if the stock setup needs to work for anyone, the Eibachs are probably more focused to the enthusiast who isn't racing.
i believe it lowers the car 25mm, but this is off the top, i've posted the lengths and rates before.
IIRC, the drop was officially 25mm. But no one ever replaced brand new oem springs with Eibachs. I think my drop over the old sagging oem springs measured about 5/8" at the time.