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Suspension & Braking Forum by BimmerWorld
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Old 06-28-2013, 03:16 PM   #1
drift.mechanic
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Join Date: May 2012
Location: Montreal, Qc
Posts: 305
My Ride: E46 323i
E46 M3 spring measurement please! M and NON M

M3 owners, and E46 owners with M3 springs hanging around, I need some help. Also need the same help from someone with NON M springs to measure the same.

I installed a set of front camber plates on my 323 when I swapped my Koni yellows and M3 sway bars. Now I'm having an issue with the upper spring bucket rubbing on the camber plate slide.

Turner motorsports manufactures a upper spring bucket out of aluminum that replaces the bucket with a flat aluminum plate. The tech at TMS isn't able to assure me that the spring hat will fit a non M spring. I know the spring bucket between the M and non M have different part numbers while comparing through RealOem, but that's because of the length of the shaft's upper portion passed the tapered section of the strut. This is the TMS spring bucket replacement for when using a OEM strut design with camber plates:
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What I need from you:
- I need someone to measure the inner diameter of the spring whee it would sit on the spring bucket. Need this measurement from a M3 front spring and NON M front spring. (Spring bucket is #8 in the diagram)
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Ideal way to measure it would be with a vernier caliper inside to inside (for the total inner diameter) and outside to outside (to get the overall diameter). I know some springs will be thicker and five different specs, but I have a feeling that the thicker springs will be wound tighter to have the same outter diameter for the bucket seat.


On occasion, every member needs a hand with something. This time, I need someone to help me out a little bit.

Thank you very much for your help in advance


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Old 07-28-2013, 01:06 PM   #2
drift.mechanic
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Join Date: May 2012
Location: Montreal, Qc
Posts: 305
My Ride: E46 323i
E46 M3 spring measurement please! M and NON M

Forget it, issue solved


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