nc sways for progress/billstein sport

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nc sways for progress/billstein sport

Postby Nicolas » Thu Apr 10, 2014 12:35 pm

Hi Brian,
have not installed the shocks/springs yet. waiting for these pesky extra bushings.

I had been running my nc with rx8 sport sways front and back. These worked very nicely with the rb springs/stock shocks, flat car with instant response to steering inputs. Trade off was loss of softness/compliance on rough roads and potholes.
The behavior of the car was fine for me in terms of under/oversteer - getting plenty enough rotation (tuned with alignment and tire pressures)

From what I have gathered with reading endless threads, sway stiffness should be dependent on the rest of the suspension stiffness - the stiffer the springs/shocks, the less sway is needed.

Going from RB to progress is a wash - quasi identical rates. But I assume the billstein shocks are quite a bit stiffer than stock. Is that difference enough to rethink about the sways and maybe downsize, keeping that car fun in the corners but maybe regain a little bit of stability on potholes and rough roads ? What do you think and what are options in terms of lighter sways ?
Nicolas
 
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Re: nc sways for progress/billstein sport

Postby Brian » Thu Apr 10, 2014 2:24 pm

My sensitive little 120 pound wife runs her PRHT 2012 on the Progress Springs and Progress Sways and Bilsteins and finds that combo just the right compromise of sport and comfort. So, I suggest give the full setup a try and see what you think. You could indeed retreat back to stock sways if you feel the need....
Brian Goodwin
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Re: nc sways for progress/billstein sport

Postby Nicolas » Thu Apr 10, 2014 6:49 pm

thank you!
Do you have a guess as to where the progress sways stand in terms of stiffness relative to stock and rx8 spot (yellow dot I believe) ?
Nicolas
 
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Re: nc sways for progress/billstein sport

Postby Brian » Thu Apr 10, 2014 7:51 pm

The Progress sways are quite a bit stiffer...
Brian Goodwin
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Re: nc sways for progress/billstein sport

Postby JamesK383 » Fri Apr 11, 2014 5:12 am

I say start with the springs.

Then if the car is still not ballenced enough or flat enough on turns as you would like then start shopping for the sway bars again.

They aren't that hard to install.
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Re: nc sways for progress/billstein sport

Postby Nicolas » Wed Apr 16, 2014 3:40 pm

sounds tempting. Have a hard time believing I would need more sway than I currently have but I am curious to see how the car behaves with a slightly different balance.
I'll look into it maybe next spring. going to get some miles on the current package first!
Nicolas
 
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