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CO spring rate or damper adjusment for issue in thread

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Old Nov 17, 2010 | 07:15 AM
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CO spring rate or damper adjusment for issue in thread

Hi, guys. Have the Robispec KW V3 clubsports with 8/9 k springs, with helpers. The compression and rebound were set by Robi, and the car has been corner weighted and aligned by a local (can get specs later on when I get home). I love the way the car feels, handles, 90% of the time. The only time I dislike is when pushing it hard on the track on r-comps. (255/40/17 R1's, MR BBS wheels) There is one sharp 180 * slow speed sweeper with a hard throttle exit where the front suspension would bounce mid corner.

My thinking is the spring rates are just a touch to soft up front with the extra grip?

Besides that the car feels great, very stable, rotates on throttle very nicely.
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Old Nov 19, 2010 | 06:20 AM
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No input at all?
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Old Nov 19, 2010 | 06:29 AM
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From: somewhere testing various tires, brakes, and suspensions.
If you change the front rates, you'll have to adjust the rear too (due to the motion ratio) otherwise you'll push more.

Do you have swaybars? Front and rear bars give more adjustment points. And there is always the rear diff upgrade.
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Old Nov 19, 2010 | 07:01 AM
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If you have oscillation mid corner if you hit a bump, you can increase your rebound damping to decrease this tendency. Just be mindful of the existing settings on the dampers in case you'd like to go back.

Dan
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Old Nov 19, 2010 | 07:08 AM
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From: somewhere testing various tires, brakes, and suspensions.
Dan, do you have that nifty xls file that has the setting guide. I have it on my personal computer, but I do not have that with me. It gives the user reb/comp settings to based on car feel.
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Old Nov 19, 2010 | 02:47 PM
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Originally Posted by SmikeEvo
If you change the front rates, you'll have to adjust the rear too (due to the motion ratio) otherwise you'll push more.

Do you have swaybars? Front and rear bars give more adjustment points. And there is always the rear diff upgrade.
Then perhaps I could relocated my current rears (9k) to the front struts, and go with a 10k set up in the rear.

The car has stock sway bars.
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Old Nov 19, 2010 | 07:03 PM
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Before changing springs I would do what rawkus suggested, raise your rebound rate and/or lower your compression rate. This situation is exactly what dampening adjustments are for unless you've run out of adjustment range in which case changing springs or getting the shocks revalved are your options.
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Old Dec 6, 2010 | 11:10 AM
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From: Lafayette, IN
Originally Posted by SmikeEvo
Dan, do you have that nifty xls file that has the setting guide. I have it on my personal computer, but I do not have that with me. It gives the user reb/comp settings to based on car feel.
I didn't see this question.

I do not have this file, would you be able to send it to me? dan @ professionalawesome . com

Thanks!

Dan
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Old Dec 6, 2010 | 12:13 PM
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From: somewhere testing various tires, brakes, and suspensions.
Ill hunt around the laptop I have with me right now. I might have it.
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