STU #86 - 2006 Evo IX SE
Car seems to be working really well there!!

Cool GIF
Lazy course workers; that 2nd to last pointer needs to be addressed, lol!
Lazy course workers; that 2nd to last pointer needs to be addressed, lol!

A little over a month ago, I was at an event at El Toro and I had hit a cone on my fastest scratch run, that wasn't all the way in it's box

damn, that is a sweet gif!!! wish i had one like that of my car! also, clean the front of your car! lolol
Great GIF. I see your front lip takes as much abuse as mine does.
How do you like the 700/1000 spring rates? I'm planning on 650/900 for next season, but after seeing how well your setup works I may have to try 700/1000 first.
How do you like the 700/1000 spring rates? I'm planning on 650/900 for next season, but after seeing how well your setup works I may have to try 700/1000 first.
Yep, that front lip has definitely seen better days

I've been running 700/1000 for a little over a year now, tried 700/900 before that and the car rotates better with the 1000lb-in springs in the rear. However, if you have a big rear bar with really stiff springs you'll probably run into the issue of the rear end hopping if you add a lot of throttle on corner exit. I'm currently trying to find a happy medium with this right now; I don't mash the throttle on exit (I typically feed the gas/roll on throttle) but my co-driver this year thought the car would be faster if you could get on the gas sooner so we softened the rear bar to reduce the hopping. It did reduce some of the hopping but the car got more pushy and the front end feels a little less responsive as a result. Here's a video from August of this year, before the rear bar was softened:
Ride quality definitely suffers with the high rear rates though (I drive to/from events in the Evo, and sometimes to work/run errands).
Yep, that front lip has definitely seen better days 
I've been running 700/1000 for a little over a year now, tried 700/900 before that and the car rotates better with the 1000lb-in springs in the rear. However, if you have a big rear bar with really stiff springs you'll probably run into the issue of the rear end hopping if you add a lot of throttle on corner exit. I'm currently trying to find a happy medium with this right now; I don't mash the throttle on exit (I typically feed the gas/roll on throttle) but my co-driver this year thought the car would be faster if you could get on the gas sooner so we softened the rear bar to reduce the hopping. It did reduce some of the hopping but the car got more pushy and the front end feels a little less responsive as a result. Here's a video from August of this year, before the rear bar was softened:
Ride quality definitely suffers with the high rear rates though (I drive to/from events in the Evo, and sometimes to work/run errands).

I've been running 700/1000 for a little over a year now, tried 700/900 before that and the car rotates better with the 1000lb-in springs in the rear. However, if you have a big rear bar with really stiff springs you'll probably run into the issue of the rear end hopping if you add a lot of throttle on corner exit. I'm currently trying to find a happy medium with this right now; I don't mash the throttle on exit (I typically feed the gas/roll on throttle) but my co-driver this year thought the car would be faster if you could get on the gas sooner so we softened the rear bar to reduce the hopping. It did reduce some of the hopping but the car got more pushy and the front end feels a little less responsive as a result. Here's a video from August of this year, before the rear bar was softened:
Ride quality definitely suffers with the high rear rates though (I drive to/from events in the Evo, and sometimes to work/run errands).
With the 650/700 + medium-big rear bar setup on 245s I could usually get the rear end to rotate like I needed, but with the extra grip and reduced thrust on 265s I rarely get the back end to move any more.
I did have 1000lb springs on the rear of a Civic I used to drag race. Wow stiff LOL. That takes commitment! Of course the Civic was really, really light. Sucker bounced ask over the freeway ha ha.
Jimmy: your car must change direction like right NOW. That would be awesome.
Thanks for the feedback. 650/700 has been surprisingly streetable on my Ohlins, but 1000lbs in the rear would be a massive 43% increase in rate over my current setup. I don't expect that to be comfortable.
With the 650/700 + medium-big rear bar setup on 245s I could usually get the rear end to rotate like I needed, but with the extra grip and reduced thrust on 265s I rarely get the back end to move any more.
With the 650/700 + medium-big rear bar setup on 245s I could usually get the rear end to rotate like I needed, but with the extra grip and reduced thrust on 265s I rarely get the back end to move any more.

Jimmy: 1000lb springs? Is that a typo?
Nope, those guys believe in high spring rates and ignore tire rates
But you all know my stance on this... 3hz, no mo!
But you all know my stance on this... 3hz, no mo!
. If my Evo was still my DD then I would probably be running softer rates overall. Though, I've driven the Evo just over 12k miles this year (and 25k miles since the beginning of 2015, when I got a new DD).
Over the winter I'm going to refresh my rear diff. I may swap in a stiffer adjustable RSB, because I never touch the two softer settings on the Hotchkiss bar any more. I can't reduce camber in the rear without first gaining more clearance somewhere, which isn't easy under STU rules. I'll probably try 800 or 850 springs in the rear before jumping to the 900-1000 range to avoid an unnecessary revalve if possible.
What would you suggest I try, Dallas?
I think ~800 is about the upper limit in the rear I would ever suggest, so you still have room to move up. I'm at 700/800 and lighter than you but on race tires of course. I would start with either the 24mm whiteline rear swaybar. 24mm bar softest setting is basically Hotchkiss stiffest so you have basically your current setup with room to go stiffer.
If more rear bar isn't enough (would be surprised) then can go up to 800lb/in springs.
If more rear bar isn't enough (would be surprised) then can go up to 800lb/in springs.
I think ~800 is about the upper limit in the rear I would ever suggest, so you still have room to move up. I'm at 700/800 and lighter than you but on race tires of course. I would start with either the 24mm whiteline rear swaybar. 24mm bar softest setting is basically Hotchkiss stiffest so you have basically your current setup with room to go stiffer.
If more rear bar isn't enough (would be surprised) then can go up to 800lb/in springs.
If more rear bar isn't enough (would be surprised) then can go up to 800lb/in springs.
According to the manufacturers' specs the Whiteline 24mm middle setting is nearly the same as the Hotchkiss full stiff setting:
Hotchkis: +10%, +27%, +47%
Whiteline 24mm: +19%, +42%, +67%
Whiteline 26mm: +67%, +95%, +127%
The Whiteline 26mm is listed as being 5lbs heavier than the 24mm though.
Ooh, I knew one of the settings was same as top hotchkiss but was going off memory. I have the WL26 on my car and just changed the 26mm front bar back to stock when I put on my uprights.










