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      02-15-2015, 04:08 AM   #1
krazi3azn
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BMW PS springs in KW Coilovers?

Was planning to swap out my kwv1 progressive springs for some linear swift springs
But then realized I have a set of BMW PS laying at home and read that the performance springs were also linear
Would there be any benefit if I swap them out in my KW v1s? Trying to get a stiffer suspension and reduce body roll

Anyone tried this before?
Or is it better off staying with the KW springs?
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      02-15-2015, 07:22 AM   #2
fboutlaw
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BMW PS springs are OEM size. KW are a different diameter. Can't swap up front.
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      02-15-2015, 03:47 PM   #3
slonik
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we have st xta coilovers on our e82 135. it has linear springs with helpers on front, same specs as on kw clubsport.
if you need, i can post them (diameter, stiffness, height etc), and you can buy same springs, or will know, to start from in your upgrade
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      02-15-2015, 03:51 PM   #4
krazi3azn
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Quote:
Originally Posted by fboutlaw
BMW PS springs are OEM size. KW are a different diameter. Can't swap up front.
Thanks for the info!
I've seen some people only swap front swift springs
Is it cause the front is a lot softer?
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      02-15-2015, 03:52 PM   #5
krazi3azn
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Quote:
Originally Posted by slonik
we have st xta coilovers on our e82 135. it has linear springs with helpers on front, same specs as on kw clubsport.
if you need, i can post them (diameter, stiffness, height etc), and you can buy same springs, or will know, to start from in your upgrade
Yea that would be helpful
Still deciding on which spring rate to get
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      02-15-2015, 03:58 PM   #6
slonik
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Quote:
Yea that would be helpful
Still deciding on which spring rate to get
i've made some pics when we bought them

70nm and 170mm height.

and, better
http://docs.kwsuspension.de/ga-STXTA...39_1138-14.pdf
you can check some specs in this pdf. if you need another parameters, i'll measure on our kit.
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      02-15-2015, 04:07 PM   #7
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HPA sell a bundle for this.
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