Roush Spring Rates

[jetrinka]

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.

[Sponsor]

[mlbbaseball]

IIRC, they are rebadged Eibachs. Roush never released the spring rates.

[jetrinka]

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.

[MaroonZX3]

They are most likely made by well known spring manufacturer, but probably to Roush specifications.

[mlbbaseball]

those spring rates just seem soooo low!

[Geezer]

Originally Posted by mlbbaseball

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.

[jetrinka]

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?

[mlbbaseball]

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.

[jetrinka]

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.

[trevor]

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