# Eight-way adjustable wheels?

**URL:** <https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367>\
**Category:** NYSpeed Automotive\
**Created:** [March 12, 2009, 12:12pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367 "2009-03-12T12:12:13Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![BigRon](https://avatars.discourse-cdn.com/v4/letter/b/58956e/32.png) [@BigRon](https://forums.speedlife.net/u/BigRon)\
**Post date:** [March 12, 2009, 12:12pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/1 "2009-03-12T12:12:13Z")

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![http://www.blogcdn.com/www.autoblog.com/media/2009/03/daws_camber6.jpg](http://www.blogcdn.com/www.autoblog.com/media/2009/03/daws_camber6.jpg)

When Charles Pyott considered the possibility of on-the-fly adjustable camber, he looked at motorcycles, the human foot and cars like the Mercedes F400 Carving and the BMW Clever. What he came up with isn’t something you’ll find on any of them: the Dynamically Augmenting Wheel System, or DAWS.

Instead of making a wheel that adjusts its angle, Pyott created a wheel split into eight sections that can slide laterally on a special hub and bearing. That means the wheels can have an effective camber change without altering their angle relative to the car, and you keep the vehicle’s entire footprint in contact with the ground. Not mentioned, it could also be used to alter the car’s track.

More weird pics:

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**Author:** ![Clean\_Baldy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/clean_baldy/32/7308_2.png) [@Clean\_Baldy](https://forums.speedlife.net/u/Clean_Baldy)\
**Post date:** [March 12, 2009, 12:15pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/2 "2009-03-12T12:15:51Z")

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Interesting concept… except for the forces put onto that ring which controls the angle of the wheel segments would be INSANE! What will it be made of, diamond?

I’d love to see a video of it actually installed on a car.

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**Author:** ![Boomin99GT](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boomin99gt/32/7306_2.png) [@Boomin99GT](https://forums.speedlife.net/u/Boomin99GT)\
**Post date:** [March 12, 2009, 12:19pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/3 "2009-03-12T12:19:08Z")

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Very weird. I would also like to see this in action.

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**Author:** ![Willybeen](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/willybeen/32/7351_2.png) [@Willybeen](https://forums.speedlife.net/u/Willybeen)\
**Post date:** [March 12, 2009, 12:25pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/4 "2009-03-12T12:25:57Z")

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expensive tiressssssssssssssssssss here i come.

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**Author:** ![Pass\_McGass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pass_mcgass/32/7616_2.png) [@Pass\_McGass](https://forums.speedlife.net/u/Pass_McGass)\
**Post date:** [March 12, 2009, 12:29pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/5 "2009-03-12T12:29:22Z")

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but can they drill down to the center of the earth?

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**Author:** ![MOBOOST4U](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@MOBOOST4U](https://forums.speedlife.net/u/MOBOOST4U)\
**Post date:** [March 12, 2009, 12:31pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/6 "2009-03-12T12:31:29Z")

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Wow… that is a really coll concept. I had an idea similar to this a year back but like most of my crazy tinfoil hat ideas, I just kept it to myself lol.

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**Author:** ![fbrendan](https://avatars.discourse-cdn.com/v4/letter/f/d26b3c/32.png) [@fbrendan](https://forums.speedlife.net/u/fbrendan)\
**Post date:** [March 12, 2009, 12:51pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/7 "2009-03-12T12:51:20Z")

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That’s wild.

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**Author:** ![Fry](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fry/32/7284_2.png) [@Fry](https://forums.speedlife.net/u/Fry)\
**Post date:** [March 12, 2009, 12:54pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/8 "2009-03-12T12:54:52Z")

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Maybe I’m looking at it crosseyed, but that doesn’t change the camber angle? Just pushes the contact patch out further?

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**Author:** ![Pass\_McGass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pass_mcgass/32/7616_2.png) [@Pass\_McGass](https://forums.speedlife.net/u/Pass_McGass)\
**Post date:** [March 12, 2009, 12:58pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/9 "2009-03-12T12:58:09Z")

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> [@Fry](#):
>
> Maybe I’m looking at it crosseyed, but that doesn’t change the camber angle? Just pushes the contact patch out further?

That’s essentially what increasing the camber angle is doing on a normal wheel/tire.

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**Author:** ![travisn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/travisn/32/5046_2.png) [@travisn](https://forums.speedlife.net/u/travisn)\
**Post date:** [March 12, 2009, 12:58pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/10 "2009-03-12T12:58:16Z")

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> [@Fry](#):
>
> Maybe I’m looking at it crosseyed, but that doesn’t change the camber angle? Just pushes the contact patch out further?

Thats what I was thinking. How do you change camber and keep the entire contact patch on the ground if the road is flat.

I sense a fail…

Why cant you just make the upper control arms to be moved by hydraulic or electric actuators?

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**Author:** ![Fry](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fry/32/7284_2.png) [@Fry](https://forums.speedlife.net/u/Fry)\
**Post date:** [March 12, 2009, 1:00pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/11 "2009-03-12T13:00:52Z")

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> [@Pass McGass](#):
>
> That’s essentially what increasing the camber angle is doing on a normal wheel/tire.

I thought it had more to do with maintaining a contact patch as body roll changes the angle between the car and the ground. This kind of shit’s right up newman’s alley. I on the other hand am not so great with statics. Waiting…

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**Author:** ![Pass\_McGass](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pass_mcgass/32/7616_2.png) [@Pass\_McGass](https://forums.speedlife.net/u/Pass_McGass)\
**Post date:** [March 12, 2009, 1:04pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/12 "2009-03-12T13:04:08Z")

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> [@Fry](#):
>
> I thought it had more to do with maintaining a contact patch as body roll changes the angle between the car and the ground. This kind of shit’s right up newman’s alley. I on the other hand am not so great with statics. Waiting…

Hmm, that’s a good point. I wonder if these things have any flex to them.

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [March 12, 2009, 1:07pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/13 "2009-03-12T13:07:56Z")

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It’s all about moving the center of gravity.

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**Author:** ![Jskrapper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jskrapper/32/7570_2.png) [@Jskrapper](https://forums.speedlife.net/u/Jskrapper)\
**Post date:** [March 12, 2009, 1:17pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/14 "2009-03-12T13:17:48Z")

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Wow, the tires seem like they would be way out of balance at speed…kinda like the “tweel”

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [March 12, 2009, 1:18pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/15 "2009-03-12T13:18:56Z")

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> [@Jskrapper](#):
>
> Wow, the tires seem like they would be way out of balance at speed…kinda like the “tweel”

Nah, dA of rotational CS about hub center is 0

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**Author:** ![MPD47](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mpd47/32/7383_2.png) [@MPD47](https://forums.speedlife.net/u/MPD47)\
**Post date:** [March 12, 2009, 1:23pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/16 "2009-03-12T13:23:40Z")

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> [@newman](#):
>
> It’s all about moving the center of gravity.

And has virtually zero effect on steering and little effect on grip… like real camber. That’s what made the Mercedes concept (in 2001?) that they reference so capable, it actually had dynamic camber.

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [March 12, 2009, 1:25pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/17 "2009-03-12T13:25:36Z")

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> [@MPD47](#):
>
> And has virtually zero effect on steering and little effect on grip… like real camber. That’s what made the Mercedes concept (in 2001?) that they reference so capable, it actually had dynamic camber.

False. Moving the CG allows both wheels to receive a more even split of normal load, which is the best possible thing you can do for grip.

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**Author:** ![Jskrapper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jskrapper/32/7570_2.png) [@Jskrapper](https://forums.speedlife.net/u/Jskrapper)\
**Post date:** [March 12, 2009, 1:34pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/18 "2009-03-12T13:34:02Z")

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I know wheel balance has a lot to do with side to side weight difference, but i see what is being said. As long as movement (weight transfer) is the same on each side of the wheel to counteract.

Right?

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [March 12, 2009, 1:34pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/19 "2009-03-12T13:34:26Z")

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If a tire had a linear relationship between lateral grip and normal load, then loading tires equally wouldn’t matter, however, since grip vs normal is a logarithmic function, you want to minimize the delta of the load that each tire sees, ESPECIALLY in a side to side case, because tire widths are the same (unless you’re always turning one way). Increasing camber will ensure that the contact patch is maximized, but even dynamic camber won’t change the amount of normal load that the tire on the short side of the turning arc sees (decreasing as lateral load increases) to an appreciable degree.

The only way to really do that is by moving the center of gravity in a direction opposite the lateral loading vector (i.e. towards the centerpoint of the turning arc)

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**Author:** ![newman](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/newman/32/7569_2.png) [@newman](https://forums.speedlife.net/u/newman)\
**Post date:** [March 12, 2009, 1:36pm UTC](https://forums.speedlife.net/t/eight-way-adjustable-wheels/64367/20 "2009-03-12T13:36:40Z")

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> [@Jskrapper](#):
>
> I know wheel balance has a lot to do with side to side weight difference, but i see what is being said. As long as movement (weight transfer) is the same on each side of the wheel to counteract.
> 
> Right?

And, basically… there will be some loading on the hub that wasn’t there before, but the overall BALANCE of the wheel is the same.

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