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Old 11-09-2009, 06:43 PM   #1
jetrinka
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Roush Spring Rates

So I just bought some Roush springs from BlackcatN20. (thanks btw) And after a lot of searching I couldn't come up with any spring rates for em. Nobody knew, people guessed, and people said Roush didn't know or didn't want to tell. Well I thought I would try my luck and email em. I will just post the email.

"I have a set of Roush springs for a 00-05 Focus. They are blue and I believe the part number is R06000002. I was wondering what the spring rates of these springs are. The rear springs certainly appear progressive whereas the fronts do not. I would really appreciate the info. Thanks a lot
-Justin"

Their response.

"Justin,

Here are the spring rates for the front and the rear:

160 lbs/in front
188 lbs/in rear"

This was from rppcustomerservice@roush.com.

So it seems the spring rates are above. Just thought I would let ya know and perhaps we should update the suspension reference thread with this info.



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Old 11-09-2009, 07:20 PM   #2
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IIRC, they are rebadged Eibachs. Roush never released the spring rates.
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Old 11-09-2009, 07:33 PM   #3
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Thats one of the things I read. I also heard that they were rebadged progress springs as well. Neither were ever supported with concrete proof of by someone who actually worked at roush. I am pretty confident this is the right answer. The only mystery is why it would take them till now to answer the question of what the spring rates were outright.
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Old 11-09-2009, 07:58 PM   #4
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They are most likely made by well known spring manufacturer, but probably to Roush specifications.
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Old 11-09-2009, 08:29 PM   #5
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those spring rates just seem soooo low!
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Old 11-09-2009, 10:06 PM   #6
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Quote:
Originally Posted by mlbbaseball View Post
those spring rates just seem soooo low!


They're within a few lbs/in of Eibach Pros so not that low. I'd refer to them as be in the moderate range.
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Old 11-09-2009, 09:06 PM   #7
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They are about 30 lbs higher than the SVT's and an inch lower. Why do you say that? Do they feel stiffer than that or something?
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Old 11-10-2009, 12:42 PM   #8
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well, i still bottom out in them! but i drive much harder than most, including track days. i had 205/45/15's on Rcomps and i was still rubbing.
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Old 11-10-2009, 01:27 PM   #9
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Strange. Don't you have a gutted interior? I don't see how you would bottom em out with nothing in the car. It probably rides a lot higher without all the weight in it too.
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Old 11-13-2009, 11:50 AM   #10
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even with 10 bags of bark in the back of my car i still had 1 inch of travel till the bumpstops. i never botom out. its such good suspension. its soft when you need it and still cornners well. if the rear is loaded with weight theo the back end comes out
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