Jump to content
SAU Community

Recommended Posts

Scrape each time going into my driveway. Also parked in those underground parking lots in the city. Every car in front of me went down fine, except when I did front wheel went over the bump without scraping but heard a loud ass grinding when the bump was underneath in the center....heartbroken.

So how often do you guys scrape? And should I be concerned?

Link to comment
https://www.sau.com.au/forums/topic/396365-how-often-do-you-guys-scrape/
Share on other sites

I rarely scrape in a stock sedan.. with the exception the front bar on gutters or those 'bump stops' when parking.. the front of the car is quite low, but since the front wheels are so far forward it is rarely an issue on driveways or speed bumps.

Currently looking for a set of 350Z springs and shocks.. that might make scraping more of an issue...

I avoid going to southland in my car for a couple reasons.

1) Their Speed humps are ridiculously high.

2) There are a crap load of potholes in the parking lot

I haven't even dropped the height ffs =(

I also avoid North Melbourne Market parking lot for that exact same reason..

Always go on an angle for any dip / speed hump.. they're too deceiving

Multi-level car parks are completely off limits at the current height, as are speed humps and any dirt, but I keep the adjustment wrenches handy...

My old driveway scraped on the mesh/flex of the OEM Y pipe (right through), before I got a stainless system. I put a bash plate in front of my new cats, which are the lowest part but far, but it just got hit more as it's lower still and they still got scraped up in reverse.

I had a couple of sets of King Springs (now sold on the forum) that worked well and gave enough clearance to get around.

Bags might be the way to go next...

Yeh i scrape on most parking bump things, i dont even try to get into multi floor car parks, unless i can go sideways down the ramp,

http://www.ebay.com.au/itm/No-Fat-Chicks-Car-Scrape-Vinyl-Decal-Sticker-/190576642259?pt=AU_Car_Parts_Accessories&hash=item2c5f40c8d3

may need to put this on some of our cars :P

My Kinteix hfcs come down from the engine at a more extreme angle (to give them clearance from the car body), so the rear of the Y-pipe sits much lower than oem and is literally 5cm off the ground. I scrape the join on EVERY speed hump I go over.

Then I put on a custom made 3" mid pipe that was way too loud, so put a resonator on it, then that hit everything as well - ended up tearing open the rear of the resonator when the car bottomed out on a bumpy road at 110km/h. So I had to put the oem one back on - it is actually almost triangular-shaped so the bottom of it doesn't hit the ground over bumps!

I used to sit 1 inch lower, but have raised the car up due to physically getting the car STUCK on things! One tim eI had to get 3 nearby guys to hold the rear of the car down so the wheels touched the ground so I could power off a footpath/driveway join! :stupid:

So now the gap between my tyres and guards is nearly 5cm and I STILL scrape on everything (I do have a lower aftermarket front bar admittedly).

Agree with everyone, scraping might be the price of greatness.

Can you see whats catching underneath? The flanges on the OEM pipes and the mesh flex are the most likely. I cut my flanges off and welded the mid-pipe directly on, now the cats scrape sometimes, but no 'scrape then bump'.

I used to sit 1 inch lower, but have raised the car up due to physically getting the car STUCK on things! One tim eI had to get 3 nearby guys to hold the rear of the car down so the wheels touched the ground so I could power off a footpath/driveway join! :stupid:

this is gold

I can just imagine asking random strangers at like a shopping centre "Uhh excuse me, do you mind helping lift the rear of my car for a bit so I can get over this speed hump?"

this is gold

I can just imagine asking random strangers at like a shopping centre "Uhh excuse me, do you mind helping lift the rear of my car for a bit so I can get over this speed hump?"

...am not going to help if stuck in mud. >_<

I avoid going to southland in my car for a couple reasons.

1) Their Speed humps are ridiculously high.

2) There are a crap load of potholes in the parking lot

Agreed, the southland speed bumps in the car park always get me.

Also the ramps up to the 2nd level on the MYER side seem unusually steep. i don't scrape, but i imagine im not far off either

I dont know how you guys with stock height scrape. Mine is lowered 1.2 inches at the front and one inch at the back and i very rarely scrape. Sometimes if i have a momentary lapse of concentration and hang the nose too far over a high kerb, on the way back out the plastic flap scrapes. It sounds a lot worse then it actually is though. I was thinking it would be cool to put a camera under there somehow so you can see exactly how close you get.

Edited by projectx

i'm lowered on 350z suspension and hardly scrape on anything with the exception of my front lip which gets a graze underneath everyday I reverse out of my driveway.

For those with stock suspension and scrape...post up your tire profiles e.g.: 225/45/18. one of the reasons ppl on stock suspension scrape is because they have the wrong profile tires on, effectively reducing overall diameter and also ride height...and they wonder why...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • https://www.facebook.com/share/p/18rmVb1SKB/ 
    • The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...