Nex Racing SS-------------F336 / R250----------------Revised spring rates, single adjustable damper
Nex Racing SS-------------F450 / R350----------------Original spring rated, single adjustable damper
Eibach Pro Street----------F342 / R171----------------Non-adjustable damper
Hotbits Street Race--------F280 / R168----------------Custom applications also available
Hotbits Street Sport--------F280 / R168
spring rates are measured in weight required to compress the spring x amount. in the US it is almost always lbs per inch. So for the Tein's they require 280lbs of weight to compress the spring 1". The stiffer the spring rate, the more force is required to compress it. This means that in a car driving down the road and hitting a bump, a softer spring will be able to compress more and soak up the impact much better than a stiff spring which may only compress an inch or so. Since the spring can't soak up the impact it is transferred to the chassis and now you feel the bump. Shock valving also plays a roll in all of this, but getting into the forces per distance per timeframe is more than most want to get into.
The BC racing coilovers are about the stiffest ones out there and everyone who has them says how they are like the stock ride on the lowest setting. They must have good valving or everyone who has them isn't beeing truthful.
This thread is to provide a basic overview of the available coilovers for the srt-4. Please limit the bs in this sticky. I will keep it up to date with the best of my knowledge. If you have any information regarding new coilovers for our car please feel free to post the information so I can update the list. If you have any relevant educational information feel free to post that as well. Any other questions not pertaining to the topic of this thread should be posted elsewhere. Thank you for all your help.
Hows about another column for the MSRP of each of these, I think that would make for a nicer comparison if people are going to use this thread to pick which coilovers to buy.
As far as spring rates go, I switched from non-adjustable IPP's w/ old spring rates to the K-sports. The difference was night and day. I'm not sure whether or this is due to the dampening, the pillow ball mounts, or could this be the spring rates. it is still stiff, but seems smoother
Hows about another column for the MSRP of each of these, I think that would make for a nicer comparison if people are going to use this thread to pick which coilovers to buy.
I was originally going to post prices of the coilovers listed. However I opted not do so mainly because MSRP is not a good reflection of what a consumer would pay. There is a considerable amount of price fluctuation recently and honestly it?s serious work to keep up to date with the most current price. I would rather an interested buyer do a quick search to get the most current price available rather then getting a skewed idea of price from this thread. I'm more concerned on posting hard facts rather then estimates. Between group buys, ebay, and the for sale section, price is not always invariable.
As far as spring rates go, I switched from non-adjustable IPP's w/ old spring rates to the K-sports. The difference was night and day. I'm not sure whether or this is due to the dampening, the pillow ball mounts, or could this be the spring rates. it is still stiff, but seems smoother
Pillow ball mounts / camber plates will actually transmit more road vibration.
Let's try to keep the comments to a minimum. Thanks.
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INFO: The Ultimate SRT-4 Coilover Thread
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