nospam
In article <3nev9917ml1qia8dnio21g19svqtffiqg8@4ax.com>, Eric Stevens <eric.stevens@sum.co.nz>wrote:

Eric Stevens
How do you think they know what needs adjusting? They know because the driver tells them. There will be discussion over the details (as no adjustment affects only one aspect of the car's performance) but the top drivers have major technical input.

nospam
they can report the symptoms they encountered and offer input as to how the car is performing. drivers do that every day when they bring a car in for service.

however, they don't need to know how to fix the car or tune it to perform the way they want. that's for the mechanics to do.

Eric Stevens
All the top drivers have consideraable insight into the operation of the car and input into the way the car is set up. No two cars in the top teams handle the same way: they have been individually setup to the requirements of the individual drivers.

nospam
they have insight in how to race and what they need out of the car.

they don't need to know auto mechanics to do that, although they might want to.