morris_marlin
DIY Wheel Alignment
The car needs to show "a degree" of self centring for the IVA. This seems a very subjective measurement. How to get this to happen seems to be mainly down to the positive castor angle on the front wheels though camber and Toe also play a part. Everybody has a different method that worked for them but I've gone for neg camber and tow out. Some go for pos camber and toe in. Either way the settings seem different to every production car out there. I've also pumped the tyres up to 32psi vs the 20ish that the car weight demands. This will help lighten the steering though would probably make the front end a little skittish for normal driving.
My DIY four wheel alignment rig follows the well established principle of making a square around the car using fishing line. The important thing is that the line passes through the centre of each wheel hub, is fixed the same distance apart at both ends and is an equal distance from each hub for the same axle. My car has slightly wider track at the back but so long as it's equal both sides front and back, this doesn't matter.
To fix the line at both ends I've used 20mm electrical conduit mounted on some pieces of wood and then clamped them to the bumpers front and back. You can then tension the line by just twisting the conduit. This means my reference is the car itself rather than some imaginary square on the floor (plus given the limited space I'm less likely to trip over the equipment and have to set it all up again).
DIY Wheel Alignment
The car needs to show "a degree" of self centring for the IVA. This seems a very subjective measurement. How to get this to happen seems to be mainly down to the positive castor angle on the front wheels though camber and Toe also play a part. Everybody has a different method that worked for them but I've gone for neg camber and tow out. Some go for pos camber and toe in. Either way the settings seem different to every production car out there. I've also pumped the tyres up to 32psi vs the 20ish that the car weight demands. This will help lighten the steering though would probably make the front end a little skittish for normal driving.
My DIY four wheel alignment rig follows the well established principle of making a square around the car using fishing line. The important thing is that the line passes through the centre of each wheel hub, is fixed the same distance apart at both ends and is an equal distance from each hub for the same axle. My car has slightly wider track at the back but so long as it's equal both sides front and back, this doesn't matter.
To fix the line at both ends I've used 20mm electrical conduit mounted on some pieces of wood and then clamped them to the bumpers front and back. You can then tension the line by just twisting the conduit. This means my reference is the car itself rather than some imaginary square on the floor (plus given the limited space I'm less likely to trip over the equipment and have to set it all up again).