Rolling rear fenders at the factory…
#1
New Member
Thread Starter
Rolling rear fenders at the factory…
There is plenty of discussion here about rolling rear fenders. We do this to allow mounting wider wheels and tires with more offset. Some members here advise against doing this because of paint cracking and possible rusting.
I believe that our front fenders are rolled at the factory.
Question: Is there a reason the rear fenders are not rolled at the factory?
I believe that our front fenders are rolled at the factory.
Question: Is there a reason the rear fenders are not rolled at the factory?
#6
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
Good question.
The angular lip is on the car for a slight bit of added torsional rigidity. NOT chassis rigidity; rather, to reinforce the fender to avoid any tendency to "wrinkle" due to any torque stress across the fender if transmitted from the chassis/subframe.... rear wheel drive and all.
If you've ever worked at fabricating anything out of steel, always better to have an angle on the edge rather than a flat edge to avoid bending.
Front fenders likely don't experience the type of twisting (torque) a rear fender does under acceleration and fronts have to clear a turning tire/wheel assembly.
The angular lip is on the car for a slight bit of added torsional rigidity. NOT chassis rigidity; rather, to reinforce the fender to avoid any tendency to "wrinkle" due to any torque stress across the fender if transmitted from the chassis/subframe.... rear wheel drive and all.
If you've ever worked at fabricating anything out of steel, always better to have an angle on the edge rather than a flat edge to avoid bending.
Front fenders likely don't experience the type of twisting (torque) a rear fender does under acceleration and fronts have to clear a turning tire/wheel assembly.
#7
New Member
Thread Starter
Yes. I think you answer the question. For example… pulling the rear fenders… You can do this by simply grabbing the fender with your hands and pulling outward. However, this technique doesn’t work well unless you roll the rear fenders first (eliminating the angle on a flat edge, as you mention).