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Old 11-16-2005, 04:23 PM   #1
The Gord
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progressive vs. fixed rate

I getting ready to order shock/struts/springs. Ill use Bilsteins, but cant decide on the springs. Fixed rate should help with wheel hope, better than prog.right? I want about 1.5 inch drop and the front and rear to sit level. Im willing to sacrifice a bit for perfomance, but dont want a harsh ride. Any recommendations appreciated.
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Old 11-16-2005, 04:57 PM   #2
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Gord,

I recommend the Eibach Pro-Kit. Progressive springs. Lower 1.50" and
increase performance without the harsh ride. I've got them on my '01 coupe.
I have these springs with the Bilstein shocks and struts. They work great
together.

I eliminated wheel hop with poly IRS bushings from Maximum Motorsports.
These bushings did make the ride a little harsher.
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Old 11-16-2005, 05:15 PM   #3
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Which Bilsteins did you go with. I was actually thinking of the Bilstein BTS kit. the springs are progressive and it lowers 1.25 inches? lower if I dont use spring isolators. I just dont want to buy progressive srpings and not have them be a world of difference from stock.
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Old 11-16-2005, 05:29 PM   #4
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Quote:
Originally Posted by The Gord
Which Bilsteins did you go with. I was actually thinking of the Bilstein BTS kit. the springs are progressive and it lowers 1.25 inches? lower if I dont use spring isolators. I just dont want to buy progressive srpings and not have them be a world of difference from stock.
The progressive springs have much less travel then the stock springs. The
Eibach prog. springs give a little then get real stiff as they are compressed.
See linked pic. of my car in an approx. 0.95g turn.

I don't remember what Bilstein model I went with. Ordered them through
www.shox.com to fit a lowered '01 Cobra.

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Old 11-17-2005, 09:25 AM   #5
The Gord
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I think I will go with the progressive springs. with a 1.5in drop is it required that I get new shocks/struts? CC plates? I will not ever hit the track, only the drag strip from time to time. thanks for all your help.
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Old 11-17-2005, 10:13 AM   #6
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Quote:
Originally Posted by The Gord
I think I will go with the progressive springs. with a 1.5in drop is it required that I get new shocks/struts? CC plates? I will not ever hit the track, only the drag strip from time to time. thanks for all your help.
The stock shocks & struts will work for awhile, but wear out prematurely.
Plan on replacing them in the next year or so. You will need to get a tire
alignment after the spring install. Most likely your car will have too much
negative camber. You will need CC plates to fix this. You can drive around
on 2 degrees camber without any issues except for the inside of the front
tires wearing quickly.

cliff notes, you will soon need CC plates and new shocks and struts.
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Old 11-17-2005, 11:12 AM   #7
The Gord
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Ill go ahead and wait to order the springs/shocks/struts/CC's at the same time. One last thing. Are the eibachs progressive in the rear as well?do they need to be.

A ton of people have recommended teh H&R springs-the fronts are progressive, but specific in the rear. thanks agian
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Old 11-17-2005, 11:56 AM   #8
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Quote:
Originally Posted by The Gord
Ill go ahead and wait to order the springs/shocks/struts/CC's at the same time. One last thing. Are the eibachs progressive in the rear as well?do they need to be.

A ton of people have recommended teh H&R springs-the fronts are progressive, but specific in the rear. thanks agian
The Eibach's are a matched set. They look progressive all four corners. I always assumed that they were.

If you go to the Eibach website, it explains that you need to do all four
corners. Unless your planning on doing some drifting, I don't understand
Prog. in front and fixed in back (unless it's a drag strip thing)

www.eibach.com
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