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09-01-2008, 04:27 PM
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#1 |
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CSL Register Uber-poster!
  
Join Date: Sep 2007
Location: Scotland
Posts: 8,777
Casino cash: $42229   |
benchmark when getting a KDS set-up at a BMW
"Front Axle
Castor (left/right) = +7 deg 13 mins /+7 deg 12 mins Toe out on turns (left/right) = -1 deg 48mins / -1 deg 58mins Camber (left/right) = -1 deg 57mins / -1 deg 53mins Toe (left/right/total) = +0 deg 01mins / +0 deg 01mins / +0 deg 02mins Rear Axle Camber (left/right) = -0 deg 52mins / -0 deg 49mins Toe (left/right/total) = +0 deg 02mins / +0 deg 04mins / +0 deg 06mins Geometric Driving Axis = +0 deg 01mins Remember, -1 deg 60 min is the same as -2 degrees" "BMW dealers will only be able to achieve up to -2 degrees, more likely -1.75 degrees since they will not (for obvious warranty reasons) rotate the strut or remove the locating pin. With the locating pin removed you can get nearer -2.5 degrees with the OEM strut. Also rear toe will make quite a difference to agility into corners. But remember the greater the camber the less directionally stable the car will be. Not a problem on track or on smoother roads, but more effort on bumpy cambered b-roads. -2 degrees is perfectly comfortable if you like to feel the road through the steering wheel" 
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01-12-2008, 09:47 PM
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#2 |
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S5, Sport On, DSC M-track
Join Date: Nov 2008
Location: Scotland (sw)
Posts: 1,369
Casino cash: $2512 |
Are these the OEM settings?
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03-12-2008, 12:28 AM
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#3 |
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Driving it like I nicked it
Join Date: Sep 2008
Posts: 2,099
Casino cash: $13060  |
They look like the settings SteveD posted on Mtorque...
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04-12-2008, 09:05 AM
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#4 | |
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Driving it like I nicked it
Join Date: Dec 2007
Location: Northern Ireland
Posts: 2,623
Casino cash: $14519 |
While on the subject of 4 Wheel alignment and KDS, will have to do it again after changing the rear top mounts? Certainly hope not as the parts are cheap enough and I'd be replacing them myself!
__________________
 My Car 2004 M3 CSL with Supersprint Lightweight Race and AP's front and rear Quote:
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04-12-2008, 09:23 PM
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#5 |
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Driving it like I nicked it
Join Date: Sep 2008
Posts: 2,099
Casino cash: $13060 |
Would've thought so.
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05-12-2008, 02:37 PM
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#6 |
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Wonky 'L' after Washing
Join Date: Dec 2008
Posts: 16
Casino cash: $992 |
If you're just changing the REAR top mounts then you will NOT need to realign your car, they have no bearing on your suspension geometry.
__________________
www.bmsport.com |
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08-12-2008, 10:50 PM
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#7 | ||
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Driving it like I nicked it
Join Date: Dec 2007
Location: Northern Ireland
Posts: 2,623
Casino cash: $14519 |
Quote:
__________________
My Car 2004 M3 CSL with Supersprint Lightweight Race and AP's front and rear Quote:
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08-12-2008, 11:29 PM
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#8 |
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Driving it like I nicked it
Join Date: Sep 2008
Posts: 2,099
Casino cash: $13060 |
fair enough, useful to know, cheers.
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09-12-2008, 02:27 AM
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#9 |
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S5, Sport On, DSC M-track
Join Date: Jun 2008
Location: Auckland, New Zealand
Posts: 1,434
Casino cash: $13579 |
Factory target spec is below:
Front Axle: Castor +7deg 40 (+/- 30mins) Toe out on turns -1deg 32 (+/- 30mins) Camber - 1deg (+/- 20mins) Toe +0deg 08 (+/- 04mins) total toe +0deg 16 Rear Axle: Camber -1deg 45 (+/- 15mins) Toe +0deg 11 (+/- 03mins) Total +0deg 22 Geometric driving axis +0deg 00 (+/- 04mins) More updated version directly from BMW TIS http://i115.photobucket.com/albums/n...gnment_CSL.jpg |
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