F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Suspension | Chassis | Brakes > F3x Chassis Suspension Frequency Calculator, By FCM & FaRKle!
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      01-10-2021, 01:00 PM   #45
SD Convert
Private First Class
United_States
65
Rep
123
Posts

Drives: 2017 430i convertible
Join Date: May 2020
Location: San Diego

iTrader: (0)

I noticed that there's no tab for F33. What would it take to get that added?
Appreciate 0
      03-15-2021, 09:28 PM   #46
MacklinUSOB
Captain
United_States
518
Rep
891
Posts

Drives: f30 328i 6MT Sport
Join Date: Jan 2017
Location: Connecticut

iTrader: (0)

Thanks for the great tool, Farkle. Using it I tested the old 1:3 ratio from the E8/9X chassis to find it was perfect for my 6MT 328i @ 1.06Hz. I almost went with the rates (6k/16k) from the Ohlins kit, but 1.00Hz seemed too far from stock.

6k 8" Front
18k 8" Rear
__________________
328i RWD | MW on CRed Slick Top | 6MT | BM3 | MPE | GPlus FMIC | CSF Radiator | Millway Street Camber Plates & Monoballs | KW V2 6k/18k Swift Springs | F80 LCA/TS | SPL Bump Steer Kit | APEX SM-10 | R-S4 | DS2500 | RBF600 | SS Lines |
Past: E36 328is & E38 740i
Appreciate 1
FaRKle!3996.00
      02-14-2022, 03:36 PM   #47
mixmastermike
Private
55
Rep
99
Posts

Drives: BMW 340i Xdrive
Join Date: Dec 2021
Location: Colorado

iTrader: (0)

Quote:
Originally Posted by FaRKle! View Post
Shaikh at Fat Cat Motorsports convinced me to work with him on some suspension calculators for this BMW community. Our first version of a suspension calculator is out, and can be downloaded from the Fat Cat Motorsports' site (direct download link).

This V1 calculator allows users to see what frequencies BMW factory and BMW aftermarket suspension configurations produce across the F30, 31, 32, 34, and 36 chassis. Additionally there's a "custom setup" output where users can enter whatever spring rates they like, and use either preset weight/weight distribution values or enter their own. I also included aftermarket suspension options that I had in my database for reference.

Expect more versions of the calculator in the future with expanded feature sets (such as sway bars and roll couple).

I realize that this is an old thread... just wondering if anyone has a copy of the calculator that they would mind sharing?

It would appear that the original link no longer works.
Appreciate 0
      02-14-2022, 06:36 PM   #48
Jvac
Captain
431
Rep
781
Posts

Drives: 2015 335i rwd
Join Date: Jan 2019
Location: Usa

iTrader: (1)

[QUOTE=mixmastermike;28587124]I realize that this is an old thread... just wondering if anyone has a copy of the calculator that they would mind sharing?

It would appear that the original link no longer works.
The link still works, just not directly. If you long press and copy it then paste into your browser it will get you the file. Something about bimmerpost doesn't allow a direct link to execute

http://www.fatcatmotorsports.com/FCM...ulator_V1.xlsx
Suggest visiting their website too. There's a lot of great information there about what a good suspension setup needs to do.
__________________
335i rwd auto, 2015 with m performance LSD and Dinan stage 2. Cts charge pipe, mad 5" stepped intercooler.
Appreciate 1
      03-22-2023, 02:52 AM   #49
Exloser
Registered
0
Rep
1
Posts

Drives: Bmw
Join Date: Mar 2023
Location: Asia

iTrader: (0)

Hi,

Thank you everyone for the data and insights. Special thanks to Farkle for the hard work.

Came across Cusco Street A coilover for BMW f30 with spring rate 4kg/12kg as standard. The rear can be changed to 11 or 14. I drop the 10kg as it will not give flat ride.

https://www.cusco.co.jp/en/news/_cus...lease_str.html

Has anyone used Cusco coilover before?

There is a dyno test for it for civic on YouTube and was "voted" better than bilstein and bc.

Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 03:02 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST