Spring Upgrade for KW V3

mbb2000 · 10-12-2021, 03:06 PM

Hello,
I currently have KW V3 on my F80 M3 and was looking to upgrade the springs to a set of linear springs for both performance and Clearance for a wider front wheel. I've looked all over the forums but have found nothing. I was wondering what companies offer this and what specification of spring I need. Thank you in advance!

Niart906 · 10-16-2021, 07:08 AM

Did you check with Eibach or Swift? Back in my E46 days they used to make replacement springs for a lot of the KW lineup.

mbb2000 · 10-24-2021, 06:07 PM

Quote:

Originally Posted by Niart906

Did you check with Eibach or Swift? Back in my E46 days they used to make replacement springs for a lot of the KW lineup.

I asked eibach and they didn't really have an answer for me besides that they don't make a kit. I knew I hat they did a lot for KW.

swagon · 10-26-2021, 04:08 AM

Quote:

Originally Posted by mbb2000

Quote:

Originally Posted by Niart906

Did you check with Eibach or Swift? Back in my E46 days they used to make replacement springs for a lot of the KW lineup.

I asked eibach and they didn't really have an answer for me besides that they don't make a kit. I knew I hat they did a lot for KW.

Even KW would sell you different springs, but it might be easier to go with Swift. Just gotta know the specs you need https://www.swiftsprings.com

spidy512 · 10-26-2021, 08:57 AM

^what he said.

Gather the measurements you need (spring seat dimensions, spring size, and spring rates you desire) and give that to the spring manufacturers.

Swift is a good bet, and possibly try Eibach again but with the above info. They may have a way to cross ref springs they already offer.

Keep digging and you will find what you need. Good luck!

josh

Ant_tc · 10-26-2021, 10:56 AM

You have to measure the ID of the KW perch to find out what diameter spring to use. I upgraded to linear springs on my KW V3 coilovers(for another vehicle) and needed a spring perch adapter because I had to use a 2.5" spring to match my camber plate. Not sure on spring length though as I haven't done that conversion on this platform.

10-12-2021, 03:06 PM	#1
mbb2000 Private First Class 134 Rep 197 Posts Drives: '18 F80 M3 \| '23 F150 Join Date: Mar 2020 Location: Los Angeles, CA iTrader: (0)	Spring Upgrade for KW V3 Hello, I currently have KW V3 on my F80 M3 and was looking to upgrade the springs to a set of linear springs for both performance and Clearance for a wider front wheel. I've looked all over the forums but have found nothing. I was wondering what companies offer this and what specification of spring I need. Thank you in advance!
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10-16-2021, 07:08 AM	#2
Niart906 First Lieutenant 179 Rep 331 Posts Drives: 2017 M3, 2003 M3 Join Date: Feb 2015 Location: Dalton, PA iTrader: (0)	Did you check with Eibach or Swift? Back in my E46 days they used to make replacement springs for a lot of the KW lineup. __________________ 2017 F80 M3 - Mineral White/Amaro Brown 2003 E46 M3 - Jet Black/Cinnamon
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10-26-2021, 08:57 AM	#5
spidy512 Captain 492 Rep 688 Posts Drives: 2015 f80 M3 Join Date: Oct 2016 Location: East Bay Area, CA iTrader: (0) Garage List 2015 BMW M3 [0.00]	^what he said. Gather the measurements you need (spring seat dimensions, spring size, and spring rates you desire) and give that to the spring manufacturers. Swift is a good bet, and possibly try Eibach again but with the above info. They may have a way to cross ref springs they already offer. Keep digging and you will find what you need. Good luck! josh
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10-26-2021, 10:56 AM	#6
Ant_tc Private First Class 51 Rep 139 Posts Drives: 2017 BMW M3 30 Jahre Join Date: Oct 2009 Location: Los Angeles iTrader: (0)	You have to measure the ID of the KW perch to find out what diameter spring to use. I upgraded to linear springs on my KW V3 coilovers(for another vehicle) and needed a spring perch adapter because I had to use a 2.5" spring to match my camber plate. Not sure on spring length though as I haven't done that conversion on this platform. Attached Images
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