Rear body sanding of wedge style car

[JustSayin]

What's the consensus on sanding the rear end of a wedge style car? Do you keep the top and bottom parts flat? Round the top part only? Bottom only? Or round both? Which gives you the least amount of drag?

I know the drag factor isn't much, but I would think that sanding/rounding the top rear end is preferred, while leaving the bottom rear flat. Thoughts? Thanks!

 

[Charles Studer]

Sort of depends on other aero that you are utilizing to determine if you will recieve any benefits. Ie....fenders, air shields, ultra smoothed surfaces ect....it not focus on a great axle wheel prep and shape the body to your liking

 

[JustSayin]

The body is a thin wedge with front and rear fenders. Wheels are placed all the way to the rear. Just trying to squeeze every bit of speed.

 

[Charles Studer]

The most aero shape would be a sharp rear....due to weights this is normally not possible. Gently rounding rear top and bottom should give a slight aero advantage but the best eheel and axle prep will be your largest speed gains

 

[JustSayin]

I drilled holes across the body and was able to use tungsten cylinders. The height of the car in the rear is just over 3/8". So the rear of the car can be left alone. Right now it is sharp and not rounded. Thanks.