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New Rule Changes for NASCAR: Where and When to Watch the Race

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    NASCAR's Sprint Cup Series hits Kentucky Speedway this week, with the Quaker State 400. The biggest thing about this weekends race in-particular, is the new rule changes. This will be the very first race that they will be a part of. The rules in short, are all about passing. More specifically, they are intend to help the driver make a smoother transition while passing. Considering just how fast these vehicles are moving and weaving in and out of each other, the more help the better. The new guidelines include regulations of spoiler height. They take it down from 6 inches to 3.5 inches and the front splitter overhand by 1.75 inches. That's almost completely in half. Makes you wonder if this works well, why hasn't it been caught before. Some of the worlds best auto engineers look over these cars with insane precision. Either way, hopefully it helps to keep the cars under better control.

    The info you need to know for this weekends race:

    Location: Kentucky Speedway

    Pre-Race Coverage: Begins at 7:00 PM EST

    Race Coverage: 7:30 PM EST

    Green Flag: 7:45 PM EST. (This can vary)

    TV: NBCSN

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    So this will effect the car's aerodynamic flow in a positive way? Very surprising they are cutting these down this drastically then, because like as you said, they are the experts. I would think it would be a process of shaving them down by millimeters at a time, to perfect it as they are already really close. Not to chop spoiler heights almost in half.
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    Dallasite Wrote: So this will effect the car's aerodynamic flow in a positive way? Very surprising they are cutting these down this drastically then, because like as you said, they are the experts. I would think it would be a process of shaving them down by millimeters at a time, to perfect it as they are already really close. Not to chop spoiler heights almost in half.

    Technically, the roof would have to be a little bit lower as well. When the air flows over a vehicles hood, then windshield, then roof, it flows down to the trunk and hits the spoiler. The spoiler then creates downwards airflow to keep the tail end of the car more firmly on the ground. Which leads to more control for the driver. This is all just in my humble knowledge of the engineering/mechanics of a vehicle.

    But as I said, in theory, if the roof was lower AND the spoiler was lower too, it would create better aerodynamics of the entire car. Which again, would create much better handling for the drivers.

    If you only lower the spoiler and not the roof as well... I would think (again, in my own theory) it would only cause more resistance. Because the air would then have to travel further to the spoiler, to only be cut into greater halves. Instead of a shorter distance and smoother transition from the roof to the exit.

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    Is it suppose to give them better control? The only thing I watch NASCAR for is the crashes. I suppose safety is important as well.

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    While the crashes are entertaining, they are extremely dangerous and passing on turns is where most crashes happen. Should be interesting to see the changes.
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    PowerPlay Wrote:
    Dallasite Wrote: So this will effect the car's aerodynamic flow in a positive way? Very surprising they are cutting these down this drastically then, because like as you said, they are the experts. I would think it would be a process of shaving them down by millimeters at a time, to perfect it as they are already really close. Not to chop spoiler heights almost in half.

    Technically, the roof would have to be a little bit lower as well. When the air flows over a vehicles hood, then windshield, then roof, it flows down to the trunk and hits the spoiler. The spoiler then creates downwards airflow to keep the tail end of the car more firmly on the ground. Which leads to more control for the driver. This is all just in my humble knowledge of the engineering/mechanics of a vehicle.

    But as I said, in theory, if the roof was lower AND the spoiler was lower too, it would create better aerodynamics of the entire car. Which again, would create much better handling for the drivers.

    If you only lower the spoiler and not the roof as well... I would think (again, in my own theory) it would only cause more resistance. Because the air would then have to travel further to the spoiler, to only be cut into greater halves. Instead of a shorter distance and smoother transition from the roof to the exit.

    That makes sense. Maybe the trick is they won't have to lower the roof IF the angle is more curved/less sharp of a transition from the roof to the spoiler and tail end of the car.