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Old 01-16-2007, 03:46 PM   #1
Geezer
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Why wheel size matters

Here's a list of articles and threads that explains the virtues of proper wheel and tire size. If you read just a few of them you'll be able to make some very informative tire and wheel selection criteria. Have fun!

These come from the Miata.net wheel and tire forum. As you can tell these people are anal when it comes to proper tire and wheel selections.

Articles

Size Matters
http://www.wam.umd.edu/~greghess/sizematters.pdf

Finding Free Power
http://www.nerocam.com/SCC_TAPnew.asp

Bicycles and Unsprung Weight
http://www.softride.com/bike/cornering.pdf

Fixing the 350Z: Why Lawyers Want Everyone to Run Staggered Setups
http://www.sportcompactcarweb.com/p...s/0404scc_350z/

Picking the Right Wheels For You
http://www.grmotorsports.com/wheels.html

Big Wheels, Big Trouble?
http://money.cnn.com/2004/12/15/pf/...day_big_wheels/

Wheel Weights Can Effect Your Vehicles Show and Go
http://www.tirerack.com/wheels/tech...eel_weights.jsp

Automobile Ride, Handling, and Suspension Design
http://www.rqriley.com/suspensn.htm


Threads

How much does wheel weight really matter?
http://corner-carvers.com/forums/sh...rung+and+weight

Are 18" wheels and tires bling bling or a performance advantage?
http://corner-carvers.com/forums/sh...heel+and+weight

How much will 17" wheels slow you down
http://www.sccaforums.com/cgi-bin/u...gi/topic/7/303?

Effect of Lighter Wheels?
http://www.sccaforums.com/cgi-bin/u...gi/topic/7/301?

Bigger Wheels and Tires?
http://www.sccaforums.com/ubb/ultim...ic/7/863#000004

Rotational Advice
http://forum.miata.net/ubb/ultimate...=3;t=002795;p=1

If larger wheels are bad...why do sports cars have them?...
http://forum.miata.net/cgi-bin/ulti...ic;f=3;t=005169

Wheel Weight, Who Cares?
http://forum.miata.net/cgi-bin/ulti...ic;f=3;t=007412

1 Lb of unsprung weight =?? Static weight
http://forum.miata.net/cgi-bin/ulti...f=3;t=006390;p=

Wheel Weights....Can They Make a Difference?
http://forum.miata.net/ubb/ultimate...t=010655#000000

33.5 lbs/Corner Too Heavy??
http://forum.miata.net/ubb/ultimate...t=010570#000002

Don't Small Wheels Mean Heavier Tires?
http://forum.miata.net/ubb/ultimate...t=010479#000009

Whats With Huge Wheels?
http://forum.miata.net/ubb/ultimate...t=010436#000002

18" Wheels too big? Take a Look!
http://forum.miata.net/ubb/ultimate...t=008412#000031

I'm Finally Completely Convinced About Lighter Wheels and Tires
http://forum.miata.net/ubb/ultimate...t=010379#000000

Do Wider Tires REALLY Provide More Traction?
http://forum.miata.net/ubb/ultimate...t=010206#000034

Unsprung Weight 101
http://forum.miata.net/ubb/ultimate...t=010206#000034

Unsprung Weight Effects Performance?
http://forum.miata.net/cgi-bin/ulti...ic;f=3;t=008986

WO! The Joy of Lightweight Wheels!!!!
http://forum.miata.net/ubb/ultimate...t=010108#000033

0-60 simplified wheel physics and garfield's wheel test
http://www.mini2.com/forum/showthre...3730#post279748

Spreadsheet blows lid off lightweight wheel debate!!!
http://www.mini2.com/forum/showthre...&threadid=14738

Lightweight Wheels
http://www.mini2.com/forum/showthre...unsprung+weight

In Defense of 17's
http://www.mini2.com/forum/showthre...unsprung+weight

16 or 17 Inch Wheels?
http://www.mini2.com/forum/showthre...ht=wheel+weight

18 or 19 Inch Wheels?
http://www.mini2.com/forum/showthre...ht=wheel+weight

Effects of Wheel Size on Acceleration (TimeSlips)
http://forum.mazda6tech.com/viewtop...?t=1762&start=0

6tech Article
http://www.mazda6tech.com/index.php...id=16&Itemid=32

Wheel Weight and Performance
http://forum.mazda6tech.com/viewtop...der=asc&start=0


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Old 01-16-2007, 03:56 PM   #2
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that second one is insane they ripped that car into nothing
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Old 01-16-2007, 04:33 PM   #3
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most of those dont work. its the "..." in the middle. im sure that its very informative, but you may want to update them.
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Old 01-16-2007, 05:14 PM   #4
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^^^Yeah, nuts.
I'm sure there's great info there Geezer, but we can't see it.

I appreciate the posting, especially since the question of wheel size comes up so much.
What you need is the full address, and not a cut/paste from another forum.
When copying those links, make sure you right-click and "copy shortcut" to get the full address,
otherwise it's truncated and we go nowhere.

EDIT:
Ah ha.
A quick Google search, and voila...
Found where the original links all came from:
http://www.msprotege.com/forum/showthread.php?t=96891

Again Geezer, thanks for finding this!

EDIT-2:
Now that we have the links, it appears most of the Miata ones are dead:
Quote:
This archive is no longer available. All of the threads from this archive can be found at Miata Forum.
Unfortunately, it may be difficult to track down a broken link. (The links were broken when we switched from UBB software to vBulletin.)
It will require some searching on your part.
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Old 01-16-2007, 08:47 PM   #5
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it's just too bad that these can't be exactly universal, because not all cars a built to handle the same with regards to the wheel/tire size.
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Old 01-16-2007, 09:25 PM   #6
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Quote:
Originally Posted by imprtslyr0223 View Post
it's just too bad that these can't be exactly universal, because not all cars a built to handle the same with regards to the wheel/tire size.
Huh? Unsprung weight is unsprung weight. Any car will benefit from reducing unsprung weight. It doesn't matter whether it is a Corvette or a Focus, they will both benefit from having lighter wheels. Of course the Corvette has to use a heavier, wider wheel to be able to mount the massive rubber necessary to handle the Vette's power but they would go lighter if they could (can you imagine a $2,800 super light Vette wheel?).
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Old 01-16-2007, 09:27 PM   #7
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The Second one was nuts, it's amazing what a little power to weight ratio can do, that thing was basically a four wheeled motorcycle, which would be pretty fun having driven a 250cc 6 speed shifter cart
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Old 01-17-2007, 12:39 PM   #8
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I'm sorry my cut and paste didn't work. I wasn't aware things got lost in conversion. My bad. Here's the tread from the miata.net forum. Hopefully you can go there with this. I was able to open all those additional threads there. Sorry for the inconvenience.


http://forum.miata.net/vb/showthread.php?t=40082
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Old 01-17-2007, 01:30 PM   #9
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Good info.. For all those poeple that want record smashers..

Me?
I could care less.. I like 18" rims, I can still go 110MPH on the autobahn with 18's as compareed to my 15's... So apples and oranges... Plus my 18's are .5 lbs more then the stock 15.. so egh.. i will have my turbo kit finishd in about 2 months.. then I really wont care.. persoanlly, im not out to break records or get there the fastest.. I like normal driving, with the ability to haul a little when needed, and the ability to hang a corner 3/4's like a bat out of hell..

The ride quality is hampered... but give and take...

Again though, Awsome info.. Thank you.


Dont edit my post, its legal to go 110mph here... Why is it a nono?? Its a unrestricted speed zone.. next time send me a pm please of why you are editing my post WD40.. And look into the laws of germany if you are doubting the speed of the autobahn.. there are restricted zones.. some as low as 80kph, and the RECOMENDED speed of 130kph.. i choose to drive 110... MPH.. around 180kph.. My car my life. its legal.
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Last edited by Godspeed9mm; 01-18-2007 at 01:33 PM. Reason: Added MPH designator.
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