Results 1 to 6 of 6

Thread: How steep of a driveway???

  1. #1
    Registered User jond's Avatar
    Join Date
    Feb 2000
    Location
    N/A
    Posts
    2,800
    Feedback Score
    5 (100%)

    How steep of a driveway???

    I'm going to get my driveway graded and repaved before I get a NSX, but I know I cant get it 100% flat.

    So my question is, how steep can my driveway be and not scrape?




    .

  2. #2
    Charter Platinum 4AU4LIFE's Avatar
    Join Date
    Jun 2002
    Posts
    9,943
    Feedback Score
    19 (100%)

    Re: How steep of a driveway???

    depends on whether the car is lowered or not. if it is, then it depends on just exactly how low it is. also whether you are going to have an aftermarket spoiler on the front or the OEM one. The OEM is a lot more forgiving than some of the others. I have a rather steep driveway also and have to come up it at an angle. I absolutely can't lower my car or put CF front spoiler on if I wanted to due to the certainty of it getting damaged or not even being able to drive up it.

  3. #3
    Charter Patron D'Ecosse's Avatar
    Join Date
    Jul 2002
    Location
    Bay Area CA
    Posts
    5,628
    Feedback Score
    36 (100%)

    Re: How steep of a driveway???

    The steepness of the slope is irrelevant once you're on it - it's the transition between grades at the intersection of the drive & street that is critical. I have a steep drive with an abrupt transition that is exacerbated by a drainage gutter at the intercept. On top of that the street is actually on another down-grade perpendicular to my driveway!
    However, even though my car is lowered, I can accommodate it by cutting the angle at 45 deg as I transition across the intercept. If I was coming from the downhill side of the street though, forget it!

    If you are designing a driveway from scratch make it flatter at the bottom (at the street intersection) then gradually transitioning somewhat exponentially to the final grade, as opposed to a fixed linear slope at a fixed angle to the street. Think of the drive as a series of small angular changes rather than a single abrupt one. The greater the distance between these changes in angle the easier it will be.
    Last edited by D'Ecosse; 02-23-2006 at 17:50.
    93 Red/Black NSX

  4. #4
    Registered User blavenia's Avatar
    Join Date
    Nov 2005
    Location
    Kissimmee, FL
    Posts
    207
    Feedback Score
    0

    Re: How steep of a driveway???

    In my experience, anything bigger than an anthill at anything other than an angle scrapes on the stock chin spoiler. Just wheelie it up the driveway.
    1995 NSX-T RED/TAN
    2006 Prius, 2004 4Runner, Kawi KFX400 and KFX700 Quads, 2003 350Z (sold) 1997 Toyota Supra TT (Sold with 18K miles on it! Should have kept it)
    2006 GSXR

  5. #5
    Registered User fifrules's Avatar
    Join Date
    Dec 2005
    Location
    Owen Sound, ON, Canada
    Posts
    210
    Feedback Score
    0

    Re: How steep of a driveway???

    I have a friend who has a very steep driveway, and he used to have an Integra so low it would scrape almost anything! He'd get it up his driveway by using sandbags!

  6. #6
    Registered User midlifecrisis's Avatar
    Join Date
    Jan 2006
    Location
    Dallas, TX
    Posts
    105
    Feedback Score
    3 (100%)

    Re: How steep of a driveway???

    I couldn't get mine into the garage for 2 weeks after I bought it for this reason! I finallly had the city come out and re-grade my driveway approach. Also, I found that coming in on an angle helps considerably.

    If you're entering into a downward sloping driveway on the left, get the left front tire over first, then angle the car so that the left rear and right front hit the grade at the same time. That way you stradle the hump long-ways with a shorter distance between extremes.

    Before discovering this I accidentally ground a half inch of aluminum off of one of the jack tabs on the frame. Not a sound I want to hear ever again.
    '91 NSX black/black - Remus Exhaust, DC Sport Headers, Prospeed High-Flow Cats, Prospeed Stage 3 ROM Chip.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •