330cic - F22 ?? not required.
Start with 1/320 of a second and adjust the ISO so that you get something between F5.6 and F10 (point the camera at the track and take a reading)
At 1/320 you will get wheel blur and a sharp car.
How low you need to go to get the pan effect is a question of how far away the car is, how long a lens you are using and the state of the background you are trying to blur..
If you are using a 70-200 and Tv mode then 1/80 will give you a good blur. 1/60 and you will start to get parallax error unless the centre of the car is directly square to the sensor when the shutter closes.
As the shutter speed gets lower the more accurate you need to be to get the whole car in focus, but why bother? The objective of the pan is blur background. If it is blurred then - Cool never mind going lower.
All the guys who talk 1/20 or 1/10 of a second and show you a crisp pan shot will have taken hundreds and kept one (trust me on this!!)
The shot below was taken at 600mm, F13 and 1/160 of a second. The background blurred & car sharp.
In the next one you can see parallax error creeping in (nose and tail of the car) 1/60 @ F11 focal length 120mm, however the background is "diirty" and so a greater level of blur is required.
The objective is the shot you want not the numbers - except F22 is the wrong number. F14 tops - F8 even better. The side of the car is flat, so you don't need massive depth of field, in fact if the background is OOF then all the better - it blurs better