Thanks for the data points.

Assuming quality dampers, how streetable is a setup with 12K/16K springs? We have smooth streets here and my NVH tolerance is relatively high (for now).

 

Really depends on shocks and what bushings you have. My car with bilsteins and gtworx for the winter is barely tolerable anymore with solid/urethane bushings everywhere.

I don't believe in 700/900 anymore, but Ive tried it for almost a year and I wouldn't want to DD it on my AST 5100s.

 

On my bilstein PSS9/swift setup its not horrible, granted my daily drive is not very long. On 30-45 minute freeway drives it does not bother me either. On some crappy roads around here its pretty bad, but most of the roads here are fairly smooth. I currently still have mostly stock bushings in the suspension. The only bushings that have been changed are the diff mounts, mustache bar, and front motor mount if you want to take that one into consideration.

Overall I would say quite streetable if your tolerance is high and you don't have to drive super far each day with stock bushings.

 

Subscribed for this year too.

Is it for sure that E85 usage will be terminated for STU next season?

 

It looks likely that that will be the case, however we won't really know until after Nationals what's going to be recommended to the SEB by the STAC for the 2014 rules.

I'd write a letter now in favor of being able to use E85 in ST. http://www.sebscca.com

-Bryan

 

I have yet to autocross, but just picked up a 2011 MR a couple of weeks ago. There is an autocross intro class coming up in nearby Atlanta that I'm going to attend. I could really see myself getting into this, so I am going to subscribe now to get some ideas. It seems STU is the class to be in, so I am subscribing.

 

Since we're talking about letters..
There's a request in the Feb fastrack to put the boxster in STR or STU.

Write your letter here:
www.sebscca.com

-'chono'

 

All this talk about spring rates has me wondering if I screwed the pooch so to speak.
Backstory I bought the Ohlins that were on Nick Meyers Evo that Andrew P drove and won STU nationals back in 2010. Originally the spring rates were 11k and 14k, on the suggestion of Geoff Clark stu nats winner in 2011 I replaced the rears with 12.5 or 700# springs.

Intially the car feels good with the softer spring, i.e. doesn't feel like its bouncing across the pavement and that its digging in so to speak. Typically on our lower traction sites I turn the dampers down to about 5 or 6 and leave the sway on full soft, its a 3 way Hotchkis.

I was looking at some pics from Nats and I see a alot of inside rear wheel lift, is this indicative of too soft a spring.? I only run on concrete at Lincoln so its hard to test and tune for this and the tiny little test track doesn't have the same elements. We did run the sway on full stiff and turned the dampers up a bit. Side note dunlop z1 on 17x9. LMk what you think
Thanks

 

i thought it meant too much rear bar.. but i know nothing

 

Solution for inside rear lift, more front spring, more rear bar, less front bar.

Chris, did you see me lifting much of the inside rear? It should only come up a teensy tiny bit at max steady state (by design).

 

oop - i was totally wrong there lol

 

In order:

1. 245/40/18 unmounted Dunlop ZII's
2. 245/40/18 Rivals on Enkei RPF1 18x9.5
3. 245/40/18 Dunlop Z1's on Enkei RPF1 18x9.5

While the Rival looks huge compared to the unmounted ZII's, when compared to the mounted Z1's on identical wheels, the Rivals and Z1's are essentially identical in height...at least for the 245/40/18's. What makes them seem bigger is that they appear to have more curb protection near the rim.

Hoping to do some testing next weekend...and the weekend after that, and the weekend after that, and the...well you get the idea.

 

"like"

looking forward to some unbiased reviews, though the zII will get better with time like the z1 did. Thanks!!

 

Unfortunately I didn't get to see much of your runs, my problem is directly related to the level of grip or at least it seems to be. At Portland events or locally shouldn't be a problem for my setup, just brainstorming and trying to get some advice.

I think I will turn up the front dampers first, and see what that does. If that doesn't get it done I will try your advice and go with a heavier spring up front

Thanks
Chris

 

I'm on 600/800 (11k/15k roughly) and it's pretty okay on the highway, obviously less so on bad roads. If my commute wasn't 85 miles a day, and if I wasn't trying to keep mileage off the car, and if the car wasn't deafening inside, and if it had heated seats... THEN I'd consider DDing it That said, when my old E36 was in the shop I'd drive it to work no problem. Now that I have bluetooth I can even hear people when they call me.

Wow, that's not a great idea for STR (new class, popular, diverse) but even worse for STU. Talk about course dependency. I wonder how much tire you can get on one of those things in ST trim?

FWIW, here's me at the Finale (after recovering from brake line failures, grr) on 600/800, WORKS rear bar on the middle setting, Z1s on 17x9.5s. I don't think I have quite as much lift as you but the inside rear is still pretty much off the ground.

Like you, I don't really have any concrete locally (hoping ACU-4 comes back), and even Toledo isn't really the same as Lincoln. I'm hoping Rick builds those front swaybar brackets.

I get the more front spring, but wouldn't more front bar help keep the car flatter pretty much in the same way that more front spring would?