ksport spring rate on dc2
05-02-2007, 02:03 PM
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ksport spring rate on dc2
hi everyone i been searching for a topic about ksports on dc2 but none of the topics covers my question. i am planning to slam my 01 gsr and planning on getting a set of ksports with spring rates 10-11k/5k. any idea if this setup will ride soft or really hard? thanks
05-02-2007, 06:04 PM
#2
You want 10k in the front and 5k in the rear? Thats going to understeer worse than stock.
How compliant a ride feels on our honda's mostly depends on teh rear spring rate chosen. The lower you go the higher rates you should consider to preven bottoming out. The higher the rates you choose, the harsher the ride will be, but how harsh can be determined by what type of damper valving you have.
How compliant a ride feels on our honda's mostly depends on teh rear spring rate chosen. The lower you go the higher rates you should consider to preven bottoming out. The higher the rates you choose, the harsher the ride will be, but how harsh can be determined by what type of damper valving you have.
05-03-2007, 11:10 AM
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Re: (gmrnguyen)
I don't see a problem with a 10k/5k setup for a slammed daily driver. Granted, I would never run a slammed car, but its a personal preference.
The problem with Integras is the lack of front suspension travel. The front will bottom out long before the rear. Because of this, stiff front springs are necessary for low ride heights. However, since as noted by chrisw85, the ride quality is mostly determined by the rear springs rates, where we thankfully have adequate suspension travel.
The stock rates on an Integra are 220/110 give or take (rounding for simplicity, and because I've read several different, but close, rates in various places). 10k/5k should be somewhat close to the stock balance, since its about 560/280 lbs/in for those k values, and about 2.5 times stiffer than stock on both ends. I'm going off the assumption that increasing both front and rear rates by about the same amount, will keep the balance about the same, but that could be a completely incorrect assumption.
My 00 GSR is daily driven with 400/400 rates (7k/7k), and I have occasional issues with bottoming out the front. I'd definitely recommend higher front rates, to go lower than the 2 finger gap I'm running. Also, a lower rear rate would provide a better overall ride quality, which is something my car could certainly use. A 7k rear spring is acceptable for a daily, but I do regularly get complaints from occupants about it. If I were to convert my car to a pure daily driver, I'd probably end up with something closer to a 500/300 rate setup, which isn't too far from 10k/5k.
Oversteer vs. understeer isn't exactly something that needs to be worried about in a daily driver. If the car is being pushed far enough on public street to get close to the handling limits where that would matter, then the owner is an idiot who will crash the car at some point, regardless of the balance of the suspension.
The problem with Integras is the lack of front suspension travel. The front will bottom out long before the rear. Because of this, stiff front springs are necessary for low ride heights. However, since as noted by chrisw85, the ride quality is mostly determined by the rear springs rates, where we thankfully have adequate suspension travel.
The stock rates on an Integra are 220/110 give or take (rounding for simplicity, and because I've read several different, but close, rates in various places). 10k/5k should be somewhat close to the stock balance, since its about 560/280 lbs/in for those k values, and about 2.5 times stiffer than stock on both ends. I'm going off the assumption that increasing both front and rear rates by about the same amount, will keep the balance about the same, but that could be a completely incorrect assumption.
My 00 GSR is daily driven with 400/400 rates (7k/7k), and I have occasional issues with bottoming out the front. I'd definitely recommend higher front rates, to go lower than the 2 finger gap I'm running. Also, a lower rear rate would provide a better overall ride quality, which is something my car could certainly use. A 7k rear spring is acceptable for a daily, but I do regularly get complaints from occupants about it. If I were to convert my car to a pure daily driver, I'd probably end up with something closer to a 500/300 rate setup, which isn't too far from 10k/5k.
Oversteer vs. understeer isn't exactly something that needs to be worried about in a daily driver. If the car is being pushed far enough on public street to get close to the handling limits where that would matter, then the owner is an idiot who will crash the car at some point, regardless of the balance of the suspension.
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