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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 05-20-2003, 02:01 PM   #1
Law
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Join Date: Apr 2002
Location: Atlanta
Posts: 199
My Ride: E46M3
How to Corner Weight

Posting This Here so I'm NOT going on ALL the Time about Corner Weighting:

Needed:
* 4 Wheel Scale ala LongAcre or InterComp
* Also VERY GOOD to have an Assistant



Prerequisites:
* Auto set at approximate Recommended - NOT Desired - Ride Heights

* Auto's Caster/Camber and Alignment Set with Driver seated IN THE AUTO

* Sway Bars disconnencted

* BoltIn Strut Braces Disconnected

* Rear Shock Lower Mounts disconnected if NOT true CoilOver ala BMW

* Front Struts set to Minimum Damping/ReBound if Adjustable

* Proper Tyre Inflation



Method:
* Connect the Pads and Zero the Scales

* Place Each Wheel on CENTER of Respective Pad

* Rock the Auto Violently from Side to Side releasing in the Middle of the Motion

* With Driver IN THE CAR take the Reading of Each Wheel Weight

* Adjust the Lateral Spring Perches Equally Up to Increase Weight or Down to Lower Weight

* Goal is to have the Corners (LF + RR) = (RF + LR) withing 48,2% to 50,2%

* REM to Shake the Auto VIGOUROUSLY between Each Adjustment!


Despite what Some have said, This IS Important even for Street Autos. Would AnyOne seriously want to crash off a High Speed Corner on the Road because That Expensive Suspension wasn't Tuned?

If Your Installing Shop can't Corner Weight, You shouldn't have Faith in Their Ability to perform Adjustable Ride Height Suspension Work!

Dan Law
PTC, GA
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Old 05-20-2003, 03:29 PM   #2
zivagolee
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NICE! THANKS!
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2003 Orient Blue M3
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Old 05-21-2003, 11:15 AM   #3
Law
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BTW: It is IMPOSSIBLE to Change Left to Right or Front to Back Weight Distribution by changing Ride Heights!!!! One MUST PHYSICALLY place weight on these Corners - withing the WheelBase is Best for Handling - to effect Such Changes!!!

Dan Law
PTC, GA
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Old 06-07-2003, 08:28 AM   #4
Law
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Bump
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Old 06-08-2003, 09:57 PM   #5
carguy84
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So, you're saying that if you raise up the front of your car, and lower your rear, that the weight on your rear tires will be the same???
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Old 06-09-2003, 09:59 AM   #6
Law
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Yes in Total (LF+RF) and (LR+RR).

Dan Law
PTC, GA
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Old 06-09-2003, 04:45 PM   #7
hayaku
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diagonal weights...not front to back... diagonal for the turns...

listen to dan, good stuff
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