Fender liner delete?

[bronco100]

For a time attack S550, is there any advantage to keeping the front inner fender liners? Are there any disadvantages to deleting them? Thanks!

 

[Fabman]

Thread 'Cutting/Removing Plastic Fender Liner'
https://trackmustangsonline.com/threads/cutting-removing-plastic-fender-liner.18243/

 

[Mistaricky]

For a time attack S550, is there any advantage to keeping the front inner fender liners? Are there any disadvantages to deleting them? Thanks!

You can mess up the aerodynamics by removing the fender liner. If you remove the fronts, it will let a lot of high pressure air to build up behind the fender. If you plan to remove the liner I would recommend you vent the fender to avoid the high pressure build up. I've heard rumors on other cars that removing fender liner hurts mpg.

 

[bronco100]

You can mess up the aerodynamics by removing the fender liner. If you remove the fronts, it will let a lot of high pressure air to build up behind the fender. If you plan to remove the liner I would recommend you vent the fender to avoid the high pressure build up. I've heard rumors on other cars that removing fender liner hurts mpg.

Yeah I would definitely vent the fender and/or have fender cutouts. I wonder if venting the rear/side of the fender would be sufficient, or if the top would need to be as well.

 

[Mistaricky]

Doing both would be best. But if I could only do one I would do the rear of the fender. I feel that would be most efficient.

 

[bronco100]

Update for anyone curious:

Cutting/Removing Plastic Fender Liner

As I begin my journey of gutting this car as I work toward my TT2/ST2 goal, I've fallen down a rabbit hole which hopefully someone can pull me out of. It seems the Mustang GT4 race car has, at least partially, cut out the plastic fender liners leaving only the rear section, as shown here:Has...

trackmustangsonline.com