clearance between fender and tires

Did a search with no luck. Channeling the body and running full fenders and I am wondering if there is a good rule of thumb for how much room to leave between the top of the tire and the inside of the fender?

Worried about hitting a bump and having the tire cause damage to the fender.

 

Check your max sub travel to find what it is,that can be done with a lot of your buddy loading up the car.
Actuly,put snubbers in were needed to stop tire from hitting fender inside top,main prob may also be when turning of front wheels to check as well.