Rolling fender vs. cutting lip off
#1
Drifting
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I was about to roll my fenders then I thought, well why not just cut the inner lip completely off and smooth it out with a grinder...so why not?
btw I'm doing a MASSIVE weight reduction on my car which includes cutting out any unused brackets such as the spare tire mounts(actually the entire spare tire hump will be gone).
btw I'm doing a MASSIVE weight reduction on my car which includes cutting out any unused brackets such as the spare tire mounts(actually the entire spare tire hump will be gone).
#4
Nordschleife Master
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I think you will lost rigidity in the fender by cutting off the lip. I think the wheel arch would get wavy...
Just a thought, as I have never cut a lip off.
Just a thought, as I have never cut a lip off.
#6
Race Director
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The other issue could be paint problems due to the heat of the grinder. I had paint over heat due a 2 second tire rub (rub on ourside).
#7
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Thats what I've been doing, I cut off a bunch of brackets like the dead pedal and spare/jack mounts. I wanted to cut the spare tire well out but the gas tank mounts to it if i remember right. I might just cut it down enough to make it into a battery tray.
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#8
Drifting
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I am repainting the entire car inside and out so paint damage is not an issue.
#9
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I had to grind down the lip on my rear quarter panels due to tire rub. No big deal. They wouldn't roll because they are so thick, 3 layers of sheet metal IIRC. They will bend easier now, but....so what?
#12
Burning Brakes
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As tconn says, the fender lip is a seam at the back which is a spot weld betrween the panels. You can't cut off the lip unless you don't care about the weld. It will also lose its structural ridgity. You could get some strength back by seam welding, the panels, but that would be a lot of effort to make it nice.
The front is only a sinle panel so it could be cut off but you will still lose rdgidity.
Rolling is the way to go.
The front is only a sinle panel so it could be cut off but you will still lose rdgidity.
Rolling is the way to go.
#13
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Keep in mind tires typically only rub in a very short section of the fender so you only need to grind or roll the lip in that trouble area. Doing the whole arch isn't necessary, at least on any of the fixes I've seen.
#14
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I cut the edge off from my rear fenders, about a 12 inch section on either side, and I have had no problems for 3 or more years. Literally NO problems, no cutting hands when changing tires, no separation of the outer and inner panels, no issues with losing rigidity (as far as I can tell).
Granted, my tires still rubbed on HARD bumps and heavy acceleration when it was stock rear suspension, but after 3 years there was never any concerning damage to anything including the tires, and now the car has more narrow tires and is the lowest 944 on planet earth probably, and I never get any rubbing.
The only negative aspect is that tire smoke will seep between the two panels and start to fill the car while drifting or doing burnouts or whatever, but most people here don't do that type of stuff anyway. Remember to put a little bit of primer on the clean metal so you don't get rust.
Granted, my tires still rubbed on HARD bumps and heavy acceleration when it was stock rear suspension, but after 3 years there was never any concerning damage to anything including the tires, and now the car has more narrow tires and is the lowest 944 on planet earth probably, and I never get any rubbing.
The only negative aspect is that tire smoke will seep between the two panels and start to fill the car while drifting or doing burnouts or whatever, but most people here don't do that type of stuff anyway. Remember to put a little bit of primer on the clean metal so you don't get rust.
#15
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As tconn says, the fender lip is a seam at the back which is a spot weld betrween the panels. You can't cut off the lip unless you don't care about the weld. It will also lose its structural ridgity. You could get some strength back by seam welding, the panels, but that would be a lot of effort to make it nice.
The front is only a sinle panel so it could be cut off but you will still lose rdgidity.
Rolling is the way to go.
The front is only a sinle panel so it could be cut off but you will still lose rdgidity.
Rolling is the way to go.
Why potentially risk the panels seperating or having any other issues when you will achieve the same result with rolling them and it will be cleaner. There can't possibly be enough material there to have any real measurable weight savings anyways.