Model .................... Front Rate ....... Rear Rate ............ Damping ..................... Front/Rear Drop ................. Street Price
EVO 7,8,9 .................. 9.0 kg ........... 8.0 kg ................. 15-way ............................ Adjustable .................... $1334
EVO X ....................... 10.0 kg .......... 9.0 kg ................. 15-way............................ Adjustable .................... $1334
Ralliart / Lancer ........... TBA* ........ TBA* ...................... 15-way ............................. Adjustable .................... $1334

 

how do these compare to stock spring rates, and is there somewhere I can look that info up? I'm curious to know.

 

https://www.evolutionm.net/forums/ev...art-evo-x.html

Unfortunately, I am not sure what the ralliart spring rates are

 

Wow coilovers have MUCH higher spring rates! Does that mean the ride will be considerably more harsh? Or can they be adjusted to feel stock on commuting days, and then stiffened up for fun days?

 

Comfort gives way to performance and durability. The softest setting will be very tolerable for daily driving, but it may not mean that it will be as soft as your OEM.

As you drive the car you will hunt for the setting that is the right balance for you. Everyone is different. Its kinda like shopping for a bed. Your girlfriend wants one soft, while you prefer firm. With adjustable coilovers you can easily change the settings to find the sweet spot

 

Searching the interwebs, I found a site which claims the stock Ralliart spring rates are 180 front,150 lb/in rear. I assume this to be lb/in. This translates to 3.21kg/mm front, and 2.6kg/mm rear.

Hope this helps...

 

I'll be getting some of these maybe in a month or two Looks good but need some white models lol..

 

After all this discussion in the performance suspension catagory.. was the evo 7-9 not deemed to need conciderably stiffer spring rates in the rear.. So why do companys throw a 9/8 rate on cars like ours (i guess once you get them you can switch the springs around and have a 8/9 combo but someone give me more info about this... maybe its me thats just misunderstanding..)

 

I've got a set on my GTS and I love them.

I can post pics if anyone wants.

 

To make a long story very short, it comes down to what the manufacturer wants to accomplish.

There are so many factors that go into a coilover that its impossible to say which is the most important. The end user may want

* comfort
* lowest drop possible
* hardcore track
* weekend warrior Auto X
* off road use
* durability

Manufacturers design their coilovers for the crowd they target. The spring rates selected may add to or takeaway from the short list of things I mentioned above. The one thing that gets manufacturers into trouble with suspension car nuts is when they attempt to balance their kit out and be everything to everyone.

The discussion about the EVO 8 & 9 is about suspension geometry / (multi link sus) and what some believe are ideal setups for competition or semi serious uses during Auto X. Some find it a step in the wrong direction when you have the spring rates higher in the front than rear. Such a setup would invite undesirable handling characteristics. There is a wealth of threads in the EVO 8 & 9 Second that will explain this school of thought.

The HSD coilovers I think are F8/R9 in standard configuration and F9/R9 in special configuration. The HSD HT aka Hyper Track coilovers are setup with a rear bias higher spring rate.

Another factor is that HSD is not known in the USA as yet. While popular in the UK and Australia and more recently here in Canada. A good chunk of the Lancer and EVO guys have them equipped in our car club. While we dont have too many EVO 8 and 9 up here in Canada due to our government. The reviews have been in line with what you read online on other forums like the www.LancerRegister.com . The kit performs very well on the street and on the track. As an entry level Inverted Monotube coilover its most consistent theme would be durability.

Speaking from my experience with the EVO X and current gen Lancer. I would say its a great investment for 1300 dollars. Many of the guys around here want to lower their car in the summer and raise it back up for winter driving (if they dont park it for the winter season). Couple that with the occasional track day and Canadian weather abuse. I would run this kit over anything else. One thing that people seem to over look about HSD or HD Systems is that they are a manufacturer of suspension for OE and Aftermarket suspension. Vs. A Brand / Suspension company who out sources their coilover production and even their design to a 3rd party.

The UK distributor of HSD put together this video to describe the product and why Drift works uses it as their preferred brand
http://youtu.be/rUGOcID_GL0?hd=1

My two cents