Reply to "Group 4 Steel Flare Help Requested"

The 10 spoke Campi's used on Group 4 & GT5 cars have the following dimensions;

Rear 13" width, backspace 4.75"
Front 10" width, backspace 4.625"

Width is the distance between the inner tire bead lips and backspace is similarly flange mounting face to inner tire bead lip. Be sure to clarify that with your wheel supplier as some take backspace as to the edge of the rim.

This is what I have on my GP4 (still under construction) and the GT5. It appears to be in keeping with what Will has stated as the rear additional 1" width, but greater backspace by 0.375 pushes the wheel out by 5/8". The front would be out an additional 3/8" on mine vs. Wills.

I purchased a set of steel flares, spent an evening looking at them and duly took them back the next day. I then ordered a set of fiberglass flares which I bonded to the metal and smooth finished. My GT5 is the same (from the factory) and no de-bonding, just some minor cracking on the fronts where the tires hit as I have the ride height set very low.

Julian