Difference between revisions of "Geo Setups"
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<tr height=17 style='height:12.75pt'> | <tr height=17 style='height:12.75pt'> | ||
<td height=17 class=xl26 style='height:12.75pt'>Rear alignment/toe</td> | <td height=17 class=xl26 style='height:12.75pt'>Rear alignment/toe</td> | ||
| − | <td class=xl27 x:str="'1.2mm IN Overall">1.2mm IN | + | <td class=xl27 x:str="'1.2mm IN Overall">1.2mm IN each side</td> |
<td class=xl27>1.2mm IN each side</td> | <td class=xl27>1.2mm IN each side</td> | ||
<td class=xl27>1.5mm IN each side</td> | <td class=xl27>1.5mm IN each side</td> | ||
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</table> | </table> | ||
converting from mm to degrees; divide the toe in mm by the wheel rim diameter in mm then ARC SIN the answer | converting from mm to degrees; divide the toe in mm by the wheel rim diameter in mm then ARC SIN the answer | ||
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== Setting your own geo == | == Setting your own geo == | ||
Revision as of 22:29, 23 August 2006
Some standard Geo settings
| Geometry | Standard S1 & S2 | S2 135R | 340R Road | 340R Track |
| Ride Height F/R | 130/130mm | 120/120mm | 100/1100mm | 100/1100mm |
| Steering axis inclination | 12° | 12° | 12° | 12° |
| Front Castor | +3.8° | +3.7° | +3.8° | +3.8° |
| Front Camber | -0.1° | 0° | -0.5° | -1.8° |
| Front alignment/toe | 0.2mm OUT Overall | 0 mm | 0.2mm OUT overall | 0.5mm OUT overall |
| Rear Camber | -1.8° | -1.8° | -2.0° | -2.7° |
| Rear alignment/toe | 1.2mm IN each side | 1.2mm IN each side | 1.5mm IN each side | 2.5mm IN each side |
| Bump Steer | 2.0° to 2.5° toe in |
converting from mm to degrees; divide the toe in mm by the wheel rim diameter in mm then ARC SIN the answer
Setting your own geo
Whilst a race prep specialist can charge £200 for a Geo you can DIY Castor, camber and toe settings.
1. To baseline your current setup www.alignmycar.co.uk will find a local place with a Hunter alignment system who will privide a setup sheet showing Castor, camber and toe for £15
If you dont have the S1 or S2 service manaual suspension sections you really should get them as this is only a small part; http://www.sandsmuseum.com/cars/elise/experience/maintenance/alignment/alignment.html
2. Set the front castor by "counting washers"
3. Set the front and rear camber by adding & removing shims (removing a 1mm shim plate will alter camber by approximately -0.25° at the front and -0.30° at the rear).
4. Back to the alignment centre to check your config for another £15 and set your front and rear toe for another £30. You can now alter the camber without materially affecting toe.