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Spring Rate Questions/Decisions

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Old Mar 18, 2004 | 08:06 AM
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Default Spring Rate Questions/Decisions

I currently am running Koni Yellows with Comptech Sport Lowering Springs.

The Comptech springs provide me with a 335lb set in the front and a progressive 135-210lb set in the rear.

For daily driving I have my Koni's all the way around set at 1/4 or 180° of adjustment from full soft.

I was contemplating going a little bit lower than the 1.25" that the Comptech springs has provided me with. I was thinking about getting Ground Controls with custom spring rates.

The spring rate that I was looking at going with is 400 in the front and 300 in the rear. I drag my car occasionaly and am looking at getting into a few SCCA events this summer.

Just wondering about you opinions, thanks in advance.
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Old Mar 18, 2004 | 09:10 AM
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I think you are on the right track. While I understand the looks aspect too and lowering a bit more should be ok on spring rates of that weight don't go too low in the name of looks as it can begin to hurt performance.

If you are getting custom spring rates and decide to get your shocks revalved to those rates you should be in great shape. Since you have not yet autocrossed I won't recommend the rear heavy spring setup but I might recommend something closer together like 400/350 or 400/375. Lots of guys run stuff more like 400/450 and such but in the interest of keeping you pointed forwards make sure you are comfortable with a tail happy car first
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Old Mar 18, 2004 | 09:17 AM
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Originally Posted by Asahi
I think you are on the right track. While I understand the looks aspect too and lowering a bit more should be ok on spring rates of that weight don't go too low in the name of looks as it can begin to hurt performance.

If you are getting custom spring rates and decide to get your shocks revalved to those rates you should be in great shape. Since you have not yet autocrossed I won't recommend the rear heavy spring setup but I might recommend something closer together like 400/350 or 400/375. Lots of guys run stuff more like 400/450 and such but in the interest of keeping you pointed forwards make sure you are comfortable with a tail happy car first
Interesting. I don't know that I'll ever get the shocks revalved to be honest. So I would be running the normal Koni Yellow on this setup. For the money I could just get into some base Tein SS's and be just as satisfied...I think?

I failed to mention that I have a Comptech Rear Sway Bar (23mm?) and tie bar. I believe I read that these should have some influence on what rear rates you choose. If I do end up going this route, which is more than likely, go with a 400/350 you say? The cosmetic portion would be for daily driving, I would more than likely put it up a little for any auto-xing.
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Old Mar 19, 2004 | 07:17 AM
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i run shortend stroked bilstien shocks with 375f 475r rates with the ST front and rear swaybars.

im very happy so far but i might swap the 475's out for 550's later this season if i feel the need. right now for a tight autox course, i could stand a little more rear end bias, but for a track day with higher speeds the car feels great, just gets a little loose but still completely contolable.
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Old Mar 19, 2004 | 04:44 PM
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What class do you run in? Experience level?
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Old Mar 20, 2004 | 02:23 AM
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Originally Posted by Poboy
What class do you run in? Experience level?
Solo 2 I'd assume, no experience at all .
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Old Mar 20, 2004 | 05:47 AM
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Hmmm.

Well, I use Ground Controls and valved Koni Yellows. Stock sway bars. 400# F and 500# R on my ITR, and it seems to be perfect.

:shrug:
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Old Mar 20, 2004 | 07:09 AM
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Originally Posted by 94civicEX
Solo 2 I'd assume, no experience at all .
Solo2 is autocross, your class would be based on what modifications have been done to the car. The rules (slightly outdated) can be found here: www.moutons.org
Since you have no experience, I think you'd be better off not making any adjustments until after you drive at some events so you can know what you want to get out of your setup. Once you are able to say, 'my car does this and I want it to do that,' then it would be easier to give recommendations.

This is assuming you plan to attend enough autocrosses to make it at least a hobby. Otherwise, there's no need to set up the car based on how it would do at an autocross
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Old Mar 20, 2004 | 08:15 AM
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Originally Posted by Poboy
Since you have no experience, I think you'd be better off not making any adjustments until after you drive at some events....
A very common sense recommendation.
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Old Mar 22, 2004 | 02:48 PM
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Originally Posted by George Knighton
Hmmm.

Well, I use Ground Controls and valved Koni Yellows. Stock sway bars. 400# F and 500# R on my ITR, and it seems to be perfect.

:shrug:
Hmm, did you buy them revalved or did you have it done?

Originally Posted by Poboy
Solo2 is autocross, your class would be based on what modifications have been done to the car. The rules (slightly outdated) can be found here: www.moutons.org
Since you have no experience, I think you'd be better off not making any adjustments until after you drive at some events so you can know what you want to get out of your setup. Once you are able to say, 'my car does this and I want it to do that,' then it would be easier to give recommendations.

This is assuming you plan to attend enough autocrosses to make it at least a hobby. Otherwise, there's no need to set up the car based on how it would do at an autocross
I just have I/H/E. I just like a good handling car regarless of what I'm doing in it. Considering I have to drive to Vegas whenever I want to Auto-x, I don't know exactly how often I'll be doing it.
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