"gizmo-ms3" (gizmo-ms3)
11/01/2015 at 13:06 • Filed to: None
5
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"gizmo-ms3" (gizmo-ms3)
11/01/2015 at 13:06 • Filed to: None | 5
| 17 |
I’m going to keep it stock I said. I now have 2000 miles and the same amount of money spent. O well, old habits are hard to break I guess.
TheHondaBro
> gizmo-ms3
11/01/2015 at 13:18 |
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The location of the calipers don’t look very good for high-speed stopping. I foresee a lot of front-end dip.
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gizmo-ms3
> TheHondaBro
11/01/2015 at 13:27 |
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Can’t say I’ve had any issues, although I’m not tracking my car. I’d imagine the engineers at Ford know how to make brakes.
Textured Soy Protein
> TheHondaBro
11/01/2015 at 13:37 |
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Pretty sure things like suspension geometry and firmness have a lot more to do with brake dive than whether the calipers are in front of or behind the wheel hub line. Then again, the calipers are in a funny spot compared with, say, my car...
Twingo Tamer - About to descend into project car hell.
> TheHondaBro
11/01/2015 at 13:42 |
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Caliper location doesn’t affect braking performance very much at all.
Opposite Locksmith
> TheHondaBro
11/01/2015 at 13:53 |
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Is this car gonna have front end dip???
pip bip - choose Corrour
> gizmo-ms3
11/01/2015 at 14:14 |
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um , wanna bet on that?
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TheHondaBro
> Twingo Tamer - About to descend into project car hell.
11/01/2015 at 14:15 |
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On the contrary.
Under braking, the car will naturally dip, you agree with this? Caliper placement actually plays a much bigger role than you think.
Let’s assume the following images are for the front brakes.
The disk is spinning counter-clockwise. When the caliper closes on the disk, that circular force turns into a downward force at the caliper:
This results in articulated front-end dip at high speeds.
With the caliper located on the opposite side of the disk, we see this:
The disk, again, spins counter-clockwise with the wheel. Upon braking, the circular force turns into an upward force at the caliper, like so:
This helps to counteract the natural suspension dip while braking, resulting in a much smoother experience.
Take a look at this Ferrari as an example of this principle:
An FBD shows the natural braking forces as such:
When we apply our knowledge of caliper placement, we get this:
Overlay the two FBDs, we get this:
DasWauto
> TheHondaBro
11/01/2015 at 14:26 |
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If the caliper was attached to the body you might have a point but being that they are attached to the suspension upright, the same one as the wheel, the only thing the force applied to the caliper in braking will translate to is a torque or a moment on said upright and it will be the same regardless of which side of the upright the caliper is attached to. Unless the suspension is specifically designed to take advantage of that torsional force to prevent dive under braking, which I’m not aware of any car doing, the location of the caliper will have no effect on dive under braking.
The location of the calliper can have an effect on the Centre of Gravity (better if placed lower) and the Moment of Inertia (better if placed toward the centre of the car) but manufacturers have to weigh that against the space they have within the wheel to place the bailljoint(s) and steering rack.
4muddyfeet - bare knuckle with an EZ30
> DasWauto
11/01/2015 at 14:30 |
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Hear hear.
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4muddyfeet - bare knuckle with an EZ30
> pip bip - choose Corrour
11/01/2015 at 14:36 |
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Let me guess, you like Holdens? ;)
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pip bip - choose Corrour
> 4muddyfeet - bare knuckle with an EZ30
11/01/2015 at 14:40 |
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how did you guess?
8)
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4muddyfeet - bare knuckle with an EZ30
> pip bip - choose Corrour
11/01/2015 at 14:41 |
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The power of deduction!
LongbowMkII
> TheHondaBro
11/01/2015 at 14:52 |
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wouldn’t the upward force on the caliper further compress the suspension?
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Twingo Tamer - About to descend into project car hell.
> TheHondaBro
11/01/2015 at 14:54 |
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I see where you’re coming from, but the cause of dip is overall torque on the suspension which is unchanged despite caliper position. Source: I have a mechanical engineering degree.
GK27V6
> TheHondaBro
11/02/2015 at 08:37 |
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There was a Jalopnik article on this a couple months ago. Basically, the brakes are where they are on the Focus because of its FWD base layout. The tie rods and such basically only fit on one side of the hub, so the brakes have to go to the opposite. The position shown by all the RWD examples is generally a better position, but it can’t be done on a FWD car.
Future next gen S2000 owner
> DasWauto
12/02/2015 at 17:00 |
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This, is the correct answer.
Dr. Zoidberg - RIP Oppo
> DasWauto
01/10/2016 at 21:39 |
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This is good oppo!