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      01-01-2010, 11:38 PM   #1
rzm3
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Arrow Master List of E9x Coilover Kits

Work in progress. Please reply to add/edit information to the list.

Discussion regarding each kit should be posted in their relevent threads. Information in this thread are subject to error and modification. Please use at your own risks.

Notes:
  • Spring rates (lb per inch) are approximate and are based on information from various threads and manufacturer's available data
  • Front motion ratio is approximated to be 0.96
  • Rear motion ratio is approximated to be 0.58
  • Wheel Rate = Spring Rate * (Motion Ratio)^2
  • OE Spring Rates: 160F/550R
  • OE Wheel Rates: 147F/185R
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Last edited by rzm3; 01-02-2010 at 12:32 AM.
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      01-01-2010, 11:48 PM   #2
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Arrow Bilstein

Bilstein PSS10
www.bilsteinus.com
MSRP $2,495
  • Height Adjustable: 0.4"-1.4"F/0.8"-1.4"R
  • Spring Rates: 515F/570R
  • Wheel Rates: 473F/192R
  • Compression and Rebound Jointly Adjustable: 10 levels total, via knobs
http://www.m3post.com/forums/showthread.php?t=272825
http://www.m3post.com/forums/showthread.php?t=330458
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Last edited by rzm3; 01-02-2010 at 12:29 AM.
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      01-01-2010, 11:48 PM   #3
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Arrow KW

KW Competition
www.m-world.us/products_kw.html
MSRP $4,295
  • Height Adjustable: Custom
  • Spring Rates: Custom
  • Wheel Rates: Custom
  • Compression and Rebound Individually Adjustable: 18 levels/12 levels, via knobs
http://www.m3post.com/forums/showthread.php?t=536863
http://www.m3post.com/forums/showthread.php?t=439800

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      01-01-2010, 11:49 PM   #4
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Arrow Moton

Moton Street Sport
www.motonsuspension.com
MSRP $4,700
  • Height Adjustable:
  • Spring Rates: 360F/620R
  • Wheel Rates: 332F/209R
  • Compression and Rebound Individually Adjustable: 7 levels/7 levels, via knobs
http://www.m3post.com/forums/showthread.php?t=331500
http://www.m3post.com/forums/showthread.php?t=324486
http://www.m3post.com/forums/showthread.php?t=226424

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Last edited by rzm3; 01-02-2010 at 12:30 AM.
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      01-01-2010, 11:50 PM   #5
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Arrow KW

KW V3
www.kw-suspension.com
MSRP $2,695
  • Height Adjustable: 0.4"-1.4"(1.5"EDC)F/0.2"-1.4"R
  • Spring Rates: ProgressiveF/630R
  • Wheel Rates: ProgressiveF/212R
  • Compression and Rebound Individually Adjustable: 7 levels/18 levels, via special tools
http://www.m3post.com/forums/showthread.php?t=146467
http://www.m3post.com/forums/showthread.php?t=257381
http://www.m3post.com/forums/showthread.php?t=491523




KW Club Sport
www.kw-suspension.com
MSRP $3,595
  • Height Adjustable: 0.4"-1.5"F/0.2"-1.4"R
  • Spring Rates: 514F/800R
  • Wheel Rates: 474F/269R
  • Compression and Rebound Individually Adjustable: 9 levels/18 levels, via special tools
http://www.m3post.com/forums/showthread.php?t=231678
http://www.m3post.com/forums/showthr...=1#post6047702

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Last edited by rzm3; 01-02-2010 at 12:30 AM.
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      01-01-2010, 11:50 PM   #6
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Arrow AC Schnitzer/Sachs

AC Schnitzer Racing Suspension
www.ac-schnitzer.de/en/
MSRP $4,280
  • Height Adjustable:
  • Spring Rates: ?F/?R
  • Wheel Rates: ?F/?R
  • Compression and Rebound Jointly Adjustable: 20 positions, via knob on bottom
http://www.m3post.com/forums/showthread.php?t=229026
http://www.m3post.com/forums/showthread.php?t=331177
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Last edited by rzm3; 02-12-2010 at 07:14 PM.
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      01-01-2010, 11:51 PM   #7
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Arrow Racing Dynamics

RD Sport/Racing Dynamics Chassis Kit
www.racdyn.com
MSRP $2,490.00 ($3,210 w/ sway bars)
  • Height Preset: 1.0"F/0.75"R
  • Spring Rates: ?F/?R
  • Wheel Rates: ?F/?R
  • Compression and Rebound Preset
http://www.m3post.com/forums/showthread.php?t=265123

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Last edited by rzm3; 02-09-2010 at 09:34 PM.
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      01-01-2010, 11:51 PM   #8
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Arrow AST

AST 4200
http://www.ast-suspension.com/index.asp
  • Height Adjustable: 0.5"-2.0"F/0.0"-2.0"R
  • Spring Rates: Custom
  • Rebound Adjustable: 12 clicks
  • Compression Adjustable: 12 clicks

http://www.m3post.com/forums/showthread.php?t=489312

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Last edited by rzm3; 02-12-2010 at 07:16 PM.
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      01-01-2010, 11:52 PM   #9
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Arrow Ohlins

Ohlins Custom by PSi
http://www.performancespeedtech.com/
  • Height Adjustable
  • Spring Rates: Custom
  • Wheel Rates: Custom
  • Compression and Rebound Individually Adjustable: 40+ levels/40+ levels, via hex knobs. Solid piston front and rear. Through rod front.
http://www.m3post.com/forums/showthread.php?t=447554

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      01-01-2010, 11:54 PM   #10
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Arrow Macht Schnell

Macht Schnell - Electronic Dampening Control (EDC) Emulation Module
http://www.europeanautosource.com/pr...oducts_id=2425

Manufacturer's link: http://www.machtschnell.com/2009/11/...lation-module/
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      01-01-2010, 11:55 PM   #11
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Garage List
Thanks, your posts add a lot to the knowledge of the forum. Do you have enough information to list standard spring rates for each coilover?
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      01-01-2010, 11:56 PM   #12
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TC Kline Racing

TC Kline Racing Suspension Adjustable Sleeve kit
  • Camber/Caster plates
  • 4 Springs
  • 2 Coilover sleeves
  • 2 Spring hats
  • 2 Sway bar link clamps
  • 2 Rear ride height adjusters



http://www.m3post.com/forums/showthread.php?t=645901
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      01-02-2010, 12:14 AM   #13
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      01-02-2010, 02:06 AM   #14
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Quote:
Originally Posted by rzm3 View Post
RD Sport/Racing Dynamics Chassis Kit
www.racdyn.com
MSRP $?
  • Height Preset
  • Spring Rates: ?F/?R
  • Wheel Rates: ?F/?R
  • Compression and Rebound Preset
http://www.m3post.com/forums/showthread.php?t=265123


The MSRP for this is $2,490.00. The full chassis kit including sways (ANTI SWAY-BAR KIT HOLLOW 30.2/25.5mm ADJUSTABLE E9x M3) is $3210.00.

Sways by themselves have an MSRP of $720.00
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      01-02-2010, 01:32 PM   #15
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Nice job. Thanks for the efforts.
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      01-03-2010, 07:01 AM   #16
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Any info on Eibach springs?
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      01-03-2010, 04:08 PM   #17
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ACS racing suspension

Compression and rebound jointly adjustable, 20 positions via nob on bottom.
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      01-04-2010, 03:01 AM   #18
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Frank @ CEC. Can you please give us specs and info about the ACS Suspension Kit? BTW I've sent you PM about buying the kit but you have not responded...
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      02-08-2010, 05:31 PM   #19
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Quote:
Originally Posted by rzm3 View Post
RD Sport/Racing Dynamics Chassis Kit
www.racdyn.com
MSRP $2,490.00 ($3,210 w/ sway bars)
  • Height Preset: 1.2"F/1.0"R
  • Spring Rates: ?F/?R
  • Wheel Rates: ?F/?R
  • Compression and Rebound Preset
http://www.m3post.com/forums/showthread.php?t=265123

Based on their website,

The RDSport Chassis Kit includes uprated struts and springs providing an 18% increase in stiffness while lowering the vehicle 1" in the front and 0.75" in the rear.
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      05-01-2010, 08:01 PM   #20
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why do most coilover allow more drop on the front than the rear. wouldn't it better for handling to drop like 1" all around than say 1.5 front/1rear?
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      05-02-2010, 12:30 AM   #21
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Most kits have adjustable heights, so you can fine tune it to your own liking...
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      05-15-2010, 05:18 PM   #22
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Thanks for sharing!
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