practical steering angles - A-body

[olason]

Hello,



I am working on designing a chassis for my A-body and my needs. I am wondering what a practical steering angle would be for a GM A-body using C6 spindles and suspension set-up. As a starting point does anyone know sports cars steering angles?

[MrQuick]

to lock or during a modest u turn? how much castor do you anticipate?

[Bryce]

I think he means, what is the steering angle at full lock.

You can calculate this yourself. Draw a circle that you think is a good turning radius. Now draw another concentric circle that is a larger radius, this larger radius should represent the track width of your car. If you make two tangent lines on each circle, one for the front tire and one for the rear tire, seperate these line by the wheel base. now measure the angle between these two line this is your turning circle. If you do this with the out side of the car as well then you can calculate your ackermann. See the attached sketch I did. This shows ideal ackermann at that turning radius.

The small circle is 35ft and the track width is 60in, the car has a 108" wheelbase. you can see the two turning angles.

[olason]

Thanks for the information, and I was talking about at steering lock. That is the most extreme angle, so that is where my clearances will need to be checked.

[MrQuick]

On my 67 I got 30 degrees to frame contact and I noticed wheel turned to 24 during a u turn.