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Thread: What is the most rapid way to decelerate in dirt?

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    Not Certified Slow SDSUsnowboards's Avatar
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    Default What is the most rapid way to decelerate in dirt?

    Facts:
    Your car has ABS.
    Your 4 tires are 225mm wide, with no tread.
    You are not at risk of hitting a barrier or ditch.

    What is the most rapid way to slow your car?
    1. apply brake and go nose first.
    2. apply brake and go sideways?

    On asphalt the answer is obviously #1. But on dirt, doesn't the fluid nature of dirt change things? I'd think that by going sideways, dirt will wall up against the sidewall of the tire, your rims, and the side of your car, all acting as a force to slow you. In addition, the side of your car probably creates more air drag than the front, when it becomes the leading surface.
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    Reverse entry at WOT!
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    Master of Disaster SteveLevin's Avatar
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    look for a ramp and blast Waylon Jennings!

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    Captain Planet tq3z's Avatar
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    Sideways and dirt is never a good idea, but it would probably slow the car down the fastest, at heightened risk of flipping. There's really no win here - stay on the pavement.
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    Senior Member slodrew's Avatar
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    stay straight, square off any obstacles, and get on the gas before making impact or becoming airborne.. blast your way through Dukes of Hazzard style lol also, if you're going to hit a chain link or barbed wire fence it's a good idea to aim for a post rather than going between the posts lol.. been there, done that and had I not aimed for the post I seriously doubt that I'd have ended up on the other side of the fence more or less unscathed..

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    Senior Member robburgoon's Avatar
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    Sideways will slow you better, but might roll you. Pick your poison. I sometimes put the car in a 20* slide to get some turning and slowing happening.
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    Not Certified Slow SDSUsnowboards's Avatar
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    Quote Originally Posted by slodrew View Post
    stay straight, square off any obstacles, and get on the gas before making impact or becoming airborne.. blast your way through Dukes of Hazzard style lol also, if you're going to hit a chain link or barbed wire fence it's a good idea to aim for a post rather than going between the posts lol.. been there, done that and had I not aimed for the post I seriously doubt that I'd have ended up on the other side of the fence more or less unscathed..
    Man, why did you have to mention barbed wire? Next time I'm at the track, it's going to be without A-pillars, a roof, or windshield... I bet Willow springs will install cacti outside of turn 8 and 9 before it installs sand traps.

    Quote Originally Posted by robburgoon View Post
    Sideways will slow you better, but might roll you. Pick your poison. I sometimes put the car in a 20* slide to get some turning and slowing happening.
    I just remembered you have A LOT of experience going off road--before you got the dirt toy. Your word on the subject is as good as biblical.
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    http://www.trackhq.com/Banners/yellowsitesponsor.gif Blackbird's Avatar
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    Dig in with a big splitter.

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    Senior Member Silversprint's Avatar
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    Quote Originally Posted by SDSUsnowboards View Post
    Man, why did you have to mention barbed wire? Next time I'm at the track, it's going to be without A-pillars, a roof, or windshield... I bet Willow springs will install cacti outside of turn 8 and 9 before it installs sand traps.



    I just remembered you have A LOT of experience going off road--before you got the dirt toy. Your word on the subject is as good as biblical.

    Anytime I see someone remove the windshield I think of this.

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    http://www.trackhq.com/Banners/yellowsitesponsor.gif Blackbird's Avatar
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    Any time someone tell me how removing the windshield is dangerous I kindly remind them that people race motorcycles too.
    I'd love to race stage rally but deemed going sideways into trees as a risk I don't accept.
    YMMV.

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    Not Certified Slow SDSUsnowboards's Avatar
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    Quote Originally Posted by Silversprint View Post
    Anytime I see someone remove the windshield I think of this.

    The odds of that happening are pretty slim. The seating position in the Spyder is pretty low relative to the lowest portion of the chassis in front of him. I really think it's a non-issue. Nevertheless, I'll be speaking with Moti about making the front horizontal bar on the cage higher than the lowest portion of the body in front of the driver.
    Last edited by SDSUsnowboards; 08-18-2015 at 01:44 PM.
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    Senior Member Silversprint's Avatar
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    Quote Originally Posted by Blackbird View Post
    Any time someone tell me how removing the windshield is dangerous I kindly remind them that people race motorcycles too.
    I'd love to race stage rally but deemed going sideways into trees as a risk I don't accept.
    YMMV.
    Cars have seat belts, cages, and head and neck restraint. Do you want to race a car without all those? That's Motorcycle racing.

    Also the risk of a huge part falling of a motorcycle, flying off the track and hitting you in the face is a lot less in motorcycle racing.

    I bet Massa wished he had a close cockpit.
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    http://www.trackhq.com/Banners/yellowsitesponsor.gif Blackbird's Avatar
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    Not sure what's your point.
    That chopping the windshield off is a bad idea?
    Accidents happens.
    People die in cars all the time, even if they have a windshield.
    As terrible as Massa's accident was, the guy took a 1.8 Lbs projectile to the forehead while doing 160 MPH - and DIDN'T die.
    No one is "asking for it", but I accept the risk every time I get in my car.
    I also drive with a high quality CF seat, high quality helmet, HANS, 6 point harness, high quality fire suit, arm restraints, fire system and a very solid cage, all of which help mitigate the risks involved in this sport.
    It's not a fool proof plan, but if I wanted to eliminate the risks of racing I'd hang my helmet.

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    Senior Member fatbillybob's Avatar
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    Quote Originally Posted by SDSUsnowboards View Post
    Man, why did you have to mention barbed wire?
    Sometimes you just gotta survey your tracks! I was racing at Indie Motorsports Park out of Tuscon last year. The front straight borders another's property and segmented off by barbed wire. That wire was at the perfect head level of the guys in the sports racers and open formula cars!

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    Quote Originally Posted by fatbillybob View Post
    Sometimes you just gotta survey your tracks!
    2nd this! Whenever I have a chance to do track walks or parade laps I take it. I'm constantly amazed at the amount of things that can bite big off track. Especially drainage "features." Thunderhill for example. There's a lot of runoff but some of the flat looking space has drainage ditches. I'm counting some pretty shallow ones because it doesn't take much to flip a sideways car at speed. Plus if you live somewhere where it actually rains (not CA apparently) the ground could be soft out there.

    If I can, I'm going nose first. If you've got the space, use it. A friend went off mid T2 at Thunderhill and he took so much space to slow down it looked like he was driving back to Willows overland.

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    Not Certified Slow SDSUsnowboards's Avatar
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    Quote Originally Posted by fatbillybob View Post
    Sometimes you just gotta survey your tracks! I was racing at Indie Motorsports Park out of Tuscon last year. The front straight borders another's property and segmented off by barbed wire. That wire was at the perfect head level of the guys in the sports racers and open formula cars!
    I'm pretty sure I don't want to survey tracks. That knowledge can only make my experience less fun and slower. Would that knowledge be helpful if I went off? I doubt it.
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    Señor Member b3d3g1's Avatar
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    Quote Originally Posted by SDSUsnowboards View Post
    I'm pretty sure I don't want to survey tracks. That knowledge can only make my experience less fun and slower. Would that knowledge be helpful if I went off? I doubt it.
    I'm also under the impression that a lobotomy will solve all my problems.
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    Not Certified Slow SDSUsnowboards's Avatar
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    Quote Originally Posted by b3d3g1 View Post
    I'm also under the impression that a lobotomy will solve all my problems.
    Ok. Help me out with this one. I go off the track at Turn 9 at WSIR. I'm going pretty fast and I can't turn or stop. I know there is a ditch coming up that will launch me into a wall, because I surveyed the track before hand.

    How will my knowledge of that ditch help me in this situation?
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    Administrator ucfbrett's Avatar
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    Quote Originally Posted by SDSUsnowboards View Post
    How will my knowledge of that ditch help me in this situation?
    It will remind you not to go off in Turn 9.

    Actually, the problem with the ditch/launch ramp/wall thing is going off exiting Turn 8

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    Not Certified Slow SDSUsnowboards's Avatar
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    Quote Originally Posted by ucfbrett View Post
    It will remind you not to go off in Turn 9.

    Actually, the problem with the ditch/launch ramp/wall thing is going off exiting Turn 8
    Exactly. And what does a person do when they are reminded not to go off on 8?

    Going off the track is always the result of an errorl. Why would someone need a reminder not to make an error? How useful is such a reminder?
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