I know I am new here, but I spent a whole lot of time looking for suspension threads. Could a mod sticky a thread that encompasses all of the suspension manufacturers that support the IS250/250? Specs on dropF/R, and softness/harshness would also be nice to the guys looking in to upgrading from factory springs/suspension.

With a sticky, there wouldn't be a whole lot of searching and countless threads of repeated inquiries for the IS suspension.



For those with coilovers:
cornerweighting tips 1
Cornerweighting vs. Cross weighting
Cornerweighting tips 2

Edit: If you have these lowering springs, please comment on how much they drop, and the difference in stiffness over stock. if you can provide a sideshot, that would be even better as it would illustrate the differences between factory and modified stances.

Pics of coilover install

DIY Install
And of course, alignment after install

Stock Stance:


Springs
Tein:
IS350
S Tech: 1.6"F, 1.2"R; Spring rates 6.5F/6.8R
H Tech: 1.0"F, 0.6"R; Spring rates 6F/6.3R
Review 1

H&R:

IS350
Sport: 1.4"F, 1.3"R
IS250
Sport: 1.4"F, 1.3"R
Review 1

Eibach
IS350/IS250
Pro Kit: 1.0" F, 0.8" R
IS250 courtesy of is4fsr:

IS250 courtesy of Flipsonic


Tanabe
IS250
DF210: 1.0"F, 1.1"R; Spring rates 4.6F/5.3R

IS250 Review 1

Hotchkis
IS350/250
Sport Springs: 1 5/8F, 7/8"R

Coilovers
Tanabe:
IS350/IS250
Sustec Pro Five Coilover
Height Adjustability: 0 - 2"F/ 0 - 2 1/2"R; Spring rates 10F/7R
IS350 courtesy of iceman1117:


Megan:
IS350/IS250
Coilovers
Height Adjustability: 0 - 4" F/R; Spring rates 12F/8R

JIC
IS350/IS250
FLT TAR Coilovers
Height Adjustability: 0 - 2.5" F/R; Spring rates 12F/7R

Tein
IS350
Comfort Sport Coilovers
Height Adjustability: 0.5 - 2.2"F, 0.5 - 1.7"R; Spring rates 7F/R

Super Street Dampers
Height Adjustability: 1.1 - 2.6"F, 1.2 - 2.4"R; Spring rates 9F/R
IS250 courtesy of is250manny:

 

If someone creates a good post like you've defined we'll add it to the 2IS FAQ. Unless I missed it one doesn't exist... why don't you create it with the results of your searching?

With that post in the FAQ, there wouldn't be a whole lot of searching and countless threads of repeated inquiries for the IS suspension .

 

Very well. When I have time, I will update the my first post as I find more information.

 

This needs to be updated.

 

While it's fantastic to have pics showing ride height of each set of lowering springs, IMO it's pointless to post a picture of each coilover setup's ride height since it's completely up to the owner to decide at which height he/she prefers to run the car. More important to me (for comparison purposes) would just be features/specs and owner feedback.

I'll throw in a picture of my car on the H&R Sport springs:


Javier

 

whoa. i better get my car lower IMMEDIATELY!

 

I had the tanabe springs on my 2004 accord, the height was fine in the rear, but the fronts were not low enough in my opinion. I like to see the entire wheel (not tucked what so ever in wheel well) and they ddi this for me, but there was still a finger and a half of gap in the front. It bothered me, but the ride quality/comfort was perfect (not much different than stock).

I will probably get the tanabe setup again for my IS350 but wanted to give you all my 2 cents on their springs if it helps anyone. I go for a drop mainly for cosmetic purposes, if it helps with anti-roll, cool too.

 

great post, however - that "stock height" IS must be a AWD - sits way higher than my non-sport 250.

Also - I guess F-Sport springs = Eibachs?

L.

 

no, that stock height IS is on 17'' rims.

i want to see some specs and pics on the HKS Hypermax III. provided pocky has pics. HAHA

and i will soon be joining the Megan LP Series club.

 

It won't be as pointless if the person can state if they are slammed on coils or whichever height they are at. Someone may want tanabe coils, but only dropped 1.5 inches all around. They'll see how that would look like.

 

Official Lowering Data for the 2ISx50


Front drop / Rear Drop
Tein S. Techs 1.61 / 1.22
Tein H. Techs 1.02 / 0.63
Source
IS350

Front drop / Rear Drop
H&R Sport Spring (IS350) 1.4 / 1.3
H&R Sport Springs (IS250) 1.4 / 1.3
H&R Sport Springs (IS250 AWD) 1.4 / 1.3
Source
IS350

Front drop / Rear Drop
Tanabe DF210 1.0 / 1.0
Tanabe NF210 (IS250) 0.7 / 0.7
Tanabe NF210 (IS350) 0.8 / 1.0
Source

Tanabe DF210 GS350 Springs
Member Car
Member Car

Front drop / Rear Drop
Megan 1.25 / 1.26
Source
IS350

Front drop / Rear Drop
Road Magnet (IS250 AWD) 2.0 / 2.0
Source

Front drop / Rear Drop
FSport 1.0 / 1.0

Great Review

Front drop / Rear Drop
Eibach Pro Kit (IS350) 1.0 / 0.8
Eibach Pro Kit (IS250) 1.4 / 1.0
Source

Front drop / Rear Drop
Hotchkis 1.625 / 0.9
Source
IS350

This is all the info I have....Add to it and make a master list and maybe they will make a Sticky for everyone.

 

Eibach 250 1.4 rear 1.0 front
Eibach 350 1.0 rear 0.8 front

 

^ thanks any pics? I was just adding that when you posted.

 

Swift Springs

1.0F 0.8R

I think Pocky(sp?) had them but I dont have pics

 

Spring rates for both the Tein S-techs and F-Sport springs:

Tein S-techs
Front = 6.5kg/mm
Rear = 6.8kg/mm

F-Sport Springs (Not taken from Eibach Pro-kit spring rates)
Front = 6.6kg/mm
Rear = 7.0kg/mm