M Performance Suspension Helper Spring

gman444 · 12-02-2019, 12:16 PM

Out of curiosity, what is the purpose of the rear helper springs on the M performance/KW HAS kits? Does it just hold the main spring in place under articulation or does it affect the ride in any way?

FaRKle! · 12-02-2019, 04:37 PM

It's to keep the mainspring in place under droop. It should be fully compressed at static ride height (so it doesn't affect the ride).

CanAutM3 · 12-03-2019, 06:58 AM

Quote:

Originally Posted by FaRKle!

It's to keep the mainspring in place under droop. It should be fully compressed at static ride height (so it doesn't affect the ride).

^ This

12-02-2019, 12:16 PM	#1
gman444 Enlisted Member 26 Rep 39 Posts Drives: BMW M3 Join Date: Mar 2018 Location: Edmonton, Canada iTrader: (0)	M Performance Suspension Helper Spring Out of curiosity, what is the purpose of the rear helper springs on the M performance/KW HAS kits? Does it just hold the main spring in place under articulation or does it affect the ride in any way? __________________ F80 ///M3 Mineral White / DCT / M Performance Exhaust / Bootmod3
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12-02-2019, 04:37 PM	#2
FaRKle! Brigadier General 4007 Rep 3,535 Posts Drives: 328d Wagon, M2 Comp, i4 eD35 Join Date: Sep 2016 Location: Bay Area, CA iTrader: (4) Garage List 2023 BMW i4 eDrive 35 [0.00] 2017 BMW 328dx Wagon [0.00] 2021 BMW M2 Competi ... [0.00]	It's to keep the mainspring in place under droop. It should be fully compressed at static ride height (so it doesn't affect the ride). __________________ -328d Wagon Build Log (with helpful reference links) -My YouTube Channel for some of the best DIYs and in depth information Please don't PM me for suspension recommendations unless interested in paid private consultations.
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