Japanese suspensions tuners converting to rear stiff setups?
09-12-2002, 01:13 PM
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Japanese suspensions tuners converting to rear stiff setups?
I've been looking at a couple of Japanese brand web sites and noticed something strange. The "out of the box" spring rates for the new Civic and Integra Type R's are higher rear rates!! For example the spring rates on the Buddy Club racing spec dampers for the DC2 are 12k front and 8k rear, but for the DC5 they list 10k front and 16k rear, same goes for the new CTR. I even checked Tein and they are also going with higher rear rates. Are the Japanese companies following in the "American" racers footsteps? Or are the new body styles just that much different that they needed to rethink the settings?
09-12-2002, 01:41 PM
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Re: Japanese suspensions tuners converting to rear stiff setups? (Black R)
That, and stiff rear helps to get rid of the incessant understeer of Honda products .... to a point, then you start roasting your rear tires as they slide around so much ....
09-12-2002, 02:14 PM
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Re: Japanese suspensions tuners converting to rear stiff setups? (Spikey)
The rear is a totally different suspension geometry.
If you also notice, you will see that the shocks are closer to the center of the car, meaning the LCA's have more leverage on the shock, and hence the higher spring rate to compensate.
It is still a front stiff setup.
If you also notice, you will see that the shocks are closer to the center of the car, meaning the LCA's have more leverage on the shock, and hence the higher spring rate to compensate.
It is still a front stiff setup.
09-12-2002, 02:29 PM
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Re: Japanese suspensions tuners converting to rear stiff setups? (Black R)
Thought I was onto something 
oh well 
Chris- who did not realize even the rear suspension design was also changed.
[Modified by 6ghatch, 6:46 PM 9/12/2002]
oh well Chris- who did not realize even the rear suspension design was also changed.
[Modified by 6ghatch, 6:46 PM 9/12/2002]
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09-12-2002, 02:57 PM
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Re: Japanese suspensions tuners converting to rear stiff setups? (6ghatch)
Everyone was right here. Spring on a front strut geometry is more effective (further out to the wheel) so the rate doesn't have to be as high.
I haven't looked into too many DC5R setups. But for the DC2R, even with stiffer front springs and thicker front sway bar, it doesn't mean that the front roll stiffness would be dramatically higher than the rear because of the less effective front spring rates and longer leverage of the sway bar.
I haven't looked into too many DC5R setups. But for the DC2R, even with stiffer front springs and thicker front sway bar, it doesn't mean that the front roll stiffness would be dramatically higher than the rear because of the less effective front spring rates and longer leverage of the sway bar.
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