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Thread: Eibach Spring free length
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03-19-2010, 07:00 PM #1
Eibach Spring free length
Anyone know what the SLP Eibach ultra performance suspension option springs free lengths are. My fronts' are 16 1/2 " and rears are 14 3/4, fronts seem long......
Pro kit length is 12.5 front and 13.25 rear,
Spring rates are similar for the SLP and the pro kit
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03-23-2010, 11:32 AM #2
The SLP spring are a progressive rate spring, and the LS1 pro-kits a linear rate that's why there's a free length difference.
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03-24-2010, 09:15 AM #3
OK, but 4"???. For comparison, the Sportlines are 314-589 front and 12 1/4" free length. I know they lower the car a bit more as well.
My car has been higher in front than stock with this SLP factory kit. Could SLP have made an oopsie and put on the wrong springs?
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03-24-2010, 12:54 PM #4
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03-25-2010, 07:42 AM #5
The Eibach tech gave me these rates for an '02 Coupe....
Sportlines :Front 314-589 free length 12.25", Rear 51-206 free length 14.3"
Pro Kit :Front 400 free length 12.5" , Rear 80 -137 free length 13.9"
These rates are from SLP
SLP 70009 :Front 285-493 Rear 85-192 no free length available
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03-25-2010, 10:36 AM #6
I wasn't aware that Eibach redesigned the sportlines springs.
FYI, I just called there tech line also, and got the same specs..
So I see we have a different Eibach Sportline kit for the LT1, and LS1; I never knew that!
LS1 Sportline: Pt# 4.7038, 1.6" front & 1.4" rear drop, 314-589 lb.in. front & 51- 206 lb.in. rear .
LT1 Sportline: Pt# 4.3138, 1.6" front & 1.4" rear drop, 360 lb.in. front & 80-137 lb.in. rear .Last edited by Blue28; 03-25-2010 at 03:27 PM.
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