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Old 10-05-2009, 12:05 AM   #1
RUFFSTUFF
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Why?
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Old 10-05-2009, 12:54 AM   #2
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Yes, the yaris can rock 13's

Do a search for lenso vpd and you'll see
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Old 10-05-2009, 01:37 PM   #3
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Originally Posted by RUFFSTUFF View Post
Why?
Smaller wheels/tires=less rotating mass. Lighter=faster acceleration.
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Old 10-05-2009, 04:37 PM   #4
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Originally Posted by ozmdd View Post
Smaller wheels/tires=less rotating mass. Lighter=faster acceleration.


Nothing like buying a Yaris and then spending money to try to keep up with Corrollas...


The unsprung weight loss of the smaller wheel may (assuming wheel characteristics are the same i.e. not going from 15" alloy to 13" steel) improve handling characteristics, but is there much in the area of straight line performance gain? Except if you don't adjust the aspect ratio for the minus-2 sizing, then you will have higher gearing which will improve acceleration at the cost of top speed. Running a higher aspect ratio tire to compensate for the smaller wheel is sure to hurt cornering performance... as the tire shifts off-axis with the wheel.
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Old 10-05-2009, 04:43 PM   #5
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Actually cornering is improved.

Removal of unsprung weight not only improve straight line acceleration, but also overall handling and breaking.

And what are you talking about keeping up with a Corolla? A Corolla can't keep up with a Yaris... not even in it's dreams...
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Old 10-05-2009, 04:45 PM   #6
RUFFSTUFF
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Actually cornering is improved.

Removal of sprung weight not only improve straight line acceleration, but also overall handling and breaking.

And what are you talking about keeping up with a Corolla? A Corolla can't keep up with a Yaris... not even in it's dreams...


Wheels are unsprung weight. Anything the weighs down the suspension is sprung.

Yaris vs. Corolla... Fight!
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Old 10-05-2009, 05:00 PM   #7
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Originally Posted by RUFFSTUFF View Post
Wheels are unsprung weight. Anything the weighs down the suspension is sprung.

Yaris vs. Corolla... Fight!
Yeah... edited. You got the point though.

Any way... the Yaris reacts very well to wheel/tire weight reduction.

Also a good point on the positive side of shortening the gearing. Not a good idea for a DD, but the Yaris would benefit of a shorter ratio for the track or autoX
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