Wednesday, July 18, 2012

Wheel Alignment - Camber & Toe Check - RColt - WA Suspension

Previous alignment when i was using Tein Coilovers without camber tops and without the rear camber shim
http://ayu452.blogspot.com.au/2011/10/alignment-by-wade-bridgestone.html

Fitting the Camber Shim to the rear
http://ayu452.blogspot.com.au/2012/07/fitting-camber-shim.html

Front
Actual Camber:
So...Using camber bolts on the old coilovers i managed a -1.21degrees at the front.
The new coilovers with camber tops and elongated bolt holes is -3.9degrees
Actual Toe: I have neutral toe settings.
Actual  Caster: 2.9degrees on the left and 3.1degree on the right.
Factory Spec Camber: -1.0 to 0.0degrees
Factory Spec Caster: 2.1 to 3.1 degrees
Factory Spec Toe: -1.3mm to 1.3mm

Rear
Actual Camber:
Previous rear camber is unknown, if you see the sheet provided by bridgestone. I can't make sense of it.
At the moment the rear camber ended up at -3.1degrees left and -2.9degrees right.
Actual Toe: Rear toe on the left is 0.6mm and rear right was 4.5mm.
Factory Spec CamberApparently factory camber spec can be from -1.8 to -0.3degrees
Factory Spec Toe-1.3mm to 5.1mm

I am still reading how to correct my rear toe @_@ what a headache
Came across some interesting sites e.g. http://wiki.seloc.org/a/Geo_Setups
Which talks about -

Converting toe from mm to degrees:
Measure the rim diameter in mm as the size e.g. 17" is not the actual diameter your measurements are based on.
Multiply the result by PI to get the circumference.
Divide the result by 360 to get mm per degree.
Divide the toe mm by the mm/degree result to get toe in decimal degrees

Or Excel =DEGREES( ASIN( TOE_IN_MM / ( RIM_DIA_INCHES * 25.4 )))

Or use the calculator on this page, hypotenuse is the rim diameter the toe per wheel (total toe divided by 2) in mm is width (or toe in degrees is angle A).  http://joyfulcoder.net/sohcahtoa/

What to do if you don't know your torque values?
http://www.cncexpo.com/MetricBoltTorqueNm.aspx

















1 comment:

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