proTUNING Freaks
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Suspension | Brakes | Chassis

Post Reply
 
Thread Tools Search this Thread
      12-18-2019, 08:09 PM   #1
kumkeet
New Member
14
Rep
28
Posts

Drives: M3 F80 Dakar Yellow II
Join Date: Jan 2019
Location: Singapore

iTrader: (0)

Stock Alignment

Does anyone know what's the factory caster angle? I've found some info about stock recommended camber of -1.3 front and -1.5 rear, but nothing about caster.
Appreciate 0
      12-19-2019, 07:09 AM   #2
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
10708
Rep
16,599
Posts

Drives: 2019 M4cs
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2019 BMW M4cs  [0.00]
2018 Audi RS3  [0.00]
Quote:
Originally Posted by kumkeet View Post
Does anyone know what's the factory caster angle? I've found some info about stock recommended camber of -1.3 front and -1.5 rear, but nothing about caster.
IIRC, it is 7~7.5 degrees.

It is also important not to confuse degree and minute vs degree and decimal:
Front camber spec is 1deg29min nominal which equals 1.48 degree, while rear camber is 1deg50min nominal which equates to 1.83 degree.

Note that caster is not adjustable on the F8X platform.

For reference: https://f80.bimmerpost.com/forums/sh....php?t=1344670
__________________
///M4cs 2019 F82 Lime Rock Grey
MPE / CF Mirror caps / MP-HAS / GC Camber plates

Last edited by CanAutM3; 12-19-2019 at 03:34 PM..
Appreciate 0
      12-19-2019, 01:32 PM   #3
M3SQRD
Brigadier General
M3SQRD's Avatar
United_States
443
Rep
3,332
Posts

Drives: E92 M3,R56 S,F22 240iX,F82 M4
Join Date: Jun 2009
Location: EC

iTrader: (11)

Quote:
Originally Posted by CanAutM3 View Post
IIRC, it is 7~7.5 degrees (there is no such thing as caster on the rear axle).

It is also important not to confuse degree and minute vs degree and decimal:
Front camber spec is 1deg29min nominal which equals 1.48 degree, while rear camber is 1deg50min nominal which equates to 1.83 degree.

Note that caster is not adjustable on the F8X platform.

For reference: https://f80.bimmerpost.com/forums/sh....php?t=1344670
The C7 and C8 Corvettes have adjustable rear caster...

http://www.dscsport.com/downloads/se...-alignment.pdf
Appreciate 0
      12-19-2019, 03:33 PM   #4
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
10708
Rep
16,599
Posts

Drives: 2019 M4cs
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2019 BMW M4cs  [0.00]
2018 Audi RS3  [0.00]
Quote:
Originally Posted by M3SQRD View Post
The C7 and C8 Corvettes have adjustable rear caster...

http://www.dscsport.com/downloads/se...-alignment.pdf
Yes, you are absolutely right. From a pure suspension geometry perspective, there is just as much a caster angle on the rear axle as there is on the front axle. I wrote my post in too much haste and now edited it . Caster mostly has a self centering effect on the steered wheels, hence my hasty reply.
__________________
///M4cs 2019 F82 Lime Rock Grey
MPE / CF Mirror caps / MP-HAS / GC Camber plates
Appreciate 0
      12-19-2019, 10:30 PM   #5
kumkeet
New Member
14
Rep
28
Posts

Drives: M3 F80 Dakar Yellow II
Join Date: Jan 2019
Location: Singapore

iTrader: (0)

Quote:
Originally Posted by CanAutM3 View Post
IIRC, it is 7~7.5 degrees.

It is also important not to confuse degree and minute vs degree and decimal:
Front camber spec is 1deg29min nominal which equals 1.48 degree, while rear camber is 1deg50min nominal which equates to 1.83 degree.

Note that caster is not adjustable on the F8X platform.

For reference: https://f80.bimmerpost.com/forums/sh....php?t=1344670
Thanks so much!!!!
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 09:22 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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