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      07-17-2021, 09:51 PM   #1
heyyouduh
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Scraping on driveway solution

Has anyone tried using a speed hump to prevent scraping? Such as this one:

https://www.amazon.com/Scinotec-2200...576246&sr=8-33

I would place the rubber speed hump infront of the rear tires in the picture. I've already raised car up already, still scrapes a little. Tried going sideways, etc. Would like to avoid redoing driveway. I've tried 2" tall wood, it works, just not secure and moves. I've tried race ramps, again it works but not secured to ground enough and moves. Would like to use something slightly more secured/permanent, like a heavy rubber/recycled tired speed bump. Before I commit to that wanted to see if anyone else had any good ideas I haven't thought of, TIA.
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      07-17-2021, 10:05 PM   #2
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wow man that's very unfortunate. what is scraping? hopefully just the plastic undercovers but my concern would be is your exhaust/midpipe or other components also rubbing? your rocker panels are nearly touching. have you put the car on a lift to inspect? hopefully you can figure out a solution.
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      07-17-2021, 10:29 PM   #3
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Originally Posted by Reddevils7 View Post
wow man that's very unfortunate. what is scraping? hopefully just the plastic undercovers but my concern would be is your exhaust/midpipe or other components also rubbing? your rocker panels are nearly touching. have you put the car on a lift to inspect? hopefully you can figure out a solution.
i believe exhaust. i usually drive car to this spot, then place the race ramps underneath which allows me to go through w/o scraping. problem is it's not secure and i'm looking for a more secure/permanent solution.
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      07-17-2021, 10:40 PM   #4
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Search the other thread very similar to your driveway egress. Unfortunately he had to have it regraded which may ultimately be your best solution.
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      07-17-2021, 10:41 PM   #5
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      07-17-2021, 11:07 PM   #6
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might try angling up the grass and then cutting back to exit the driveway. better to scrape on grass/dirt than concrete.
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      07-18-2021, 12:39 AM   #7
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how could someone have approved a driveway so fucked up. look at all the other scrape marks. I bet a decent amount of other cars would also touch
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      07-18-2021, 07:06 AM   #8
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Quote:
Originally Posted by Reddevils7 View Post
how could someone have approved a driveway so fucked up. look at all the other scrape marks. I bet a decent amount of other cars would also touch
Yup. I've seen Uber delivery drivers in regular cars barely make it. I'm sure anything that's remotely sporty scrapes. I think it's done to prevent water from going down driveway? I'm probably just going to give the speed hump a try since it's cheap.
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      07-18-2021, 09:38 AM   #9
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Before you order that speed hump, do you have an HOA? I imagine that most neighborhoods with an HOA would have an issue with a black and yellow speed hump installed in the middle of the driveway. Good luck.
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      07-18-2021, 09:51 AM   #10
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If you get it going at about 42 mph and jump it, it should clear.
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      07-18-2021, 11:37 AM   #11
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Originally Posted by IVM3 View Post
Before you order that speed hump, do you have an HOA? I imagine that most neighborhoods with an HOA would have an issue with a black and yellow speed hump installed in the middle of the driveway. Good luck.
we do, they don't seem to be too intrusive, the speed hump is obviously removable but heavy. once I make sure it works I have option of bolting it in. if it works I'll ask HOA how they feel. lol
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      07-19-2021, 11:21 AM   #12
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https://www.bridjit.com/?gclid=Cj0KC...UaAlS5EALw_wcB

these are pricey but someone in my neighborhood has it. I have looked into it myself, but at that price point I'm holding off a bit longer.
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      07-19-2021, 11:44 AM   #13
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Quote:
Originally Posted by Keca10 View Post
If you get it going at about 42 mph and jump it, it should clear.
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      07-19-2021, 01:37 PM   #14
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Problem with that curb you're looking at is the peak height will only lift your car 2.2'' inches as you pass the peak of that section only. It may be enough, but dropping off that little curb as you pass it may compress the suspension and cause you to scrape.

Personally, I'd angle the car in so much that I'd probably have to use the grass.
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      07-19-2021, 02:15 PM   #15
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Quote:
Originally Posted by JamesGames View Post
Problem with that curb you're looking at is the peak height will only lift your car 2.2'' inches as you pass the peak of that section only. It may be enough, but dropping off that little curb as you pass it may compress the suspension and cause you to scrape.

Personally, I'd angle the car in so much that I'd probably have to use the grass.
yea I believe and hope it will be enough - I raised the car up a bit and have these (https://www.raceramps.com/ramps/p/rr-tj/) which work in getting me over without any scraping. My reasoning was I can use these for this and for working on cars. Unfortunately they're so light and just don't stay planted enough for it to work well, and they're not a permanent solution either. I'm hoping between raising the car up and the speed hump will get me through. If not I'm probably just going to have some guy redo the driveway or part of the driveway.
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      07-19-2021, 04:01 PM   #16
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Do you clear if you hit it at an angle? I bottom out coming out of my office parking garage if I don't cut a 45 degree angle coming up the ramp.
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      07-19-2021, 04:07 PM   #17
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Quote:
Originally Posted by dallastide View Post
Do you clear if you hit it at an angle? I bottom out coming out of my office parking garage if I don't cut a 45 degree angle coming up the ramp.
nope. this is with me going as diagonal as allowed w/o putting entire car on grass.
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      07-19-2021, 08:12 PM   #18
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Couldn’t you grind down that concrete to remove the crown?
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      07-19-2021, 08:16 PM   #19
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Quote:
Originally Posted by Budget M3 View Post
Couldn't you grind down that concrete to remove the crown?
No, the sidewalk being flat creates a massive problem with correcting the approach angle. You may be totally screwed as far as being able to remedy this.
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      07-19-2021, 08:40 PM   #20
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Quote:
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No, the sidewalk being flat creates a massive problem with correcting the approach angle. You may be totally screwed as far as being able to remedy this.
Agree, You would have to grind down the sidewalk itself, not the driveway, in order to correct the approach side. Still seems feasible and more permanent than installing speed humps or ramps.
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      07-19-2021, 08:44 PM   #21
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get air suspension problem solved
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      07-19-2021, 08:44 PM   #22
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+1

Did you buy the car first and then the house?

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