After trying to measure camber, toe in/out and steering symmetry for years with gauges and rulers. I started borrowing setup stations from fellow racers. Some were hard to read the markings, others just not well manufactured. Borrowing a setup station is not as simple as a screwdriver or spanner. It’s not a quick to set up and with the atmosphere of the race track it can be hard to properly set up your car.
I got rather fed up with borrowing so, I bit the bullet and purchased a setup station. I went for the Hudy universal 1/8th set-up system and the Hudy universal 1/10th set-up system. I chose Hudy because they are know world-wide for their quality.
A setup station needs to give accurate readings. The problem with plastic setup stations is the plastic flexes. This can change your readings by several degrees. If you have never used a setup station. When you put your car on one, you can accurately see how your car is setup.
What I like about the Hudy set up systems is the parts are precision cut out of high grade aluminum. You piece them together with 12 high performance ball bearings for smooth and wobble free operation. You know when you put your car on a Hudy setup station you are getting an accurate reading.
Camber & camber rise.
You can measure the front and rear camber with accurate clear markings. Camber is measured on the vertical axis of your wheel. If you look at you wheel straight on. When the top part of your tire is leaning towards the car, this is negative camber. When the wheel is leaning outwards this is positive camber.
I measure camber once I have settled on the ride height of my car. Once your on the track and your suspension is moving up and down the degree of negative/positive camber you have will change. This is camber rise, push down on your car in the setup station and you will see the angle change.
Front and rear toe.
Toe is measured on the horizontal axis of your wheel. Toe plays vital role in handling too much or too little and it will effect the stability of your car. If you look at your front wheels from at the front half way and see its pointing in then you have toe in. If the tire is pointing outwards then you have toe out.
Steering throw symmetry.
Steering throw is how far your wheels turn to the left and right. It is almost impossible to measure accurately without a setup station. When you connect your steering servo you should set the end points (how far the servo turns left and right). This is to make sure you don’t damage your servo. Most people tend to do this by eye, myself included.
What can happen with this is your car may turn more to the left than right, or vice versa. The servo is only one part of the steering you also have steering linages and turnbuckles which can effect steering throw.
Having symmetry will ensure your car behaves the same way in both directions.