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04-28-2006, 12:24 PM | #1 |
Car Geek
Drives: Yaris Liftback Join Date: Apr 2006
Location: Ohio cornfields
Posts: 213
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Unbelievable... my Yaris showed up!
Well, 2 1/2 weeks after I placed my order, the dealer called and said that my Blazing Blue liftback has arrived! Thank goodness. Hopefully I can pick it up tomorrow.
I'll be sure to post pictures, although it won't be anything exciting yet. Spec is (as far as I know) the Convenience Package with 15" steelies. I'm probably going to drive it for a while before I start to do some basic OEM-type mods, such as the TRD suspension. I might even get raped for the tasty 18" TRD wheels -- they do look nice. Can't get ahead of myself, though. Anybody care to speculate on what kind of impact wheels/tires like 18's would have on mileage?
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Kevin '07 Blazing Blue 5-speed liftback (sold) '08 Black auto liftback (sold) '09 Carmine Red auto 4-door liftback (sold) |
04-28-2006, 12:44 PM | #2 |
Drives: 06 yaris 5-dr le man Join Date: Mar 2006
Location: ontario, canada
Posts: 699
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congrats goose!
as far as the big wheels effect on fuel economy, would i be right in thinking that they would require more power to get going? if so, would it be a noticeable difference in fuel consumption (and acceleration time?) |
04-28-2006, 10:41 PM | #3 | |
Drives: None yet Join Date: Feb 2006
Location: Farmington NY
Posts: 63
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04-28-2006, 12:44 PM | #4 |
Drives: Copper-Orange Yaris RS Join Date: Apr 2006
Location: Georgian Triangle Ont.
Posts: 310
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Congrats. The 18's will improve gas mileage somewhat, but I think the real benefits lie elsewhere.
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04-28-2006, 12:45 PM | #5 |
Drives: 06 yaris 5-dr le man Join Date: Mar 2006
Location: ontario, canada
Posts: 699
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improve? i would have thought they would have the opposite effect
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04-28-2006, 12:45 PM | #6 |
Drives: Copper-Orange Yaris RS Join Date: Apr 2006
Location: Georgian Triangle Ont.
Posts: 310
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The 18's will require LESS power to get going, due to less weight.
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04-28-2006, 01:24 PM | #7 | |
5 Stars, Bitches
Drives: Prius, Silver Yaris Liftback Join Date: Mar 2006
Location: Holly Springs, NC
Posts: 451
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04-28-2006, 10:46 PM | #8 | |
Drives: None yet Join Date: Feb 2006
Location: Farmington NY
Posts: 63
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04-28-2006, 12:47 PM | #9 |
Drives: Copper-Orange Yaris RS Join Date: Apr 2006
Location: Georgian Triangle Ont.
Posts: 310
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Remember 18'' alloy wheels have less rubber, and the wheels themselves are significantly lighter than the steelies.
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04-28-2006, 10:48 PM | #10 | |
Drives: None yet Join Date: Feb 2006
Location: Farmington NY
Posts: 63
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04-28-2006, 01:10 PM | #11 |
Drives: 06 yaris 5-dr le man Join Date: Mar 2006
Location: ontario, canada
Posts: 699
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ahh, i see, i was thinking by just being bigger that they would require more energy to get going, which would probably be the case if the weight were the same
but i'm no physicist, so i could be wrong on that one |
04-28-2006, 01:31 PM | #12 | |
5 Stars, Bitches
Drives: Prius, Silver Yaris Liftback Join Date: Mar 2006
Location: Holly Springs, NC
Posts: 451
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04-28-2006, 01:38 PM | #13 |
5 Stars, Bitches
Drives: Prius, Silver Yaris Liftback Join Date: Mar 2006
Location: Holly Springs, NC
Posts: 451
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Here's some sample numbers -
Yaris 15" Steel Wheel/Tire Combo - 37lbs (17lb wheel, 20lb tire) Toyo Proxes 4 Ultra-High Performance Tires with light Rota SubZero Wheels: 15x6.5 w/ 195/50R15 - 29lbs (12lb wheel, 17lb tire) 18x7.5 w/ 215/35R18 - 39lbs (19lb wheel, 20lb tire) So, even with a lightweight 18" setup, you're both heavier than stock and a lot of that weight has been moved further away from the axel, so you'll definitely see a drop in performance. |
04-28-2006, 10:50 PM | #14 | |
Drives: None yet Join Date: Feb 2006
Location: Farmington NY
Posts: 63
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04-28-2006, 02:42 PM | #15 |
It's all about VVTI
Drives: Yaris 5Dr LE White Join Date: Feb 2006
Location: Canada
Posts: 308
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hum...... tell me if I am dumb. Is that mean bigger wheel is not as fuel consuming?
I know a few basic, the smaller the wheel obviously will have more power to go up the hill and stuff, the bigger the wheel will have better performance. Right? I am getting confuse. Oops, sorry where are my manners, Congrats, Goose!
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Ziv on Vitz '06. |
04-28-2006, 03:03 PM | #16 | ||
5 Stars, Bitches
Drives: Prius, Silver Yaris Liftback Join Date: Mar 2006
Location: Holly Springs, NC
Posts: 451
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The best option will be the wheel that gives the best balance between weight and cornering stability. That certainly isn't the 18" option - I would say if you're performance-minded a 16" wheel with a good performance tire would be the best compromise. |
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04-28-2006, 03:11 PM | #17 |
Drives: Copper-Orange Yaris RS Join Date: Apr 2006
Location: Georgian Triangle Ont.
Posts: 310
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I had NO idea the 18's would be THAT heavy. I just know the 16" alloy on my Acura was significantly lighter than 15" winter wheel, and they were only Honda alloys. The extra weight must come from the added width of the tire???? In Canada the 15 inch wheels come with 185/60 tires. How does the rolling diameter compare to that of the 215/35/18's.
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04-28-2006, 03:32 PM | #18 |
Car Geek
Drives: Yaris Liftback Join Date: Apr 2006
Location: Ohio cornfields
Posts: 213
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Actually, my first reaction to larger wheels/tires was the effect of the larger contact patch on rolling resistance. Most high-mileage cars are concerned with low rolling resistance, and therefore use skinny, harder compound tires to maximize this benefit. By going to an 18" wheel (with probably at least a 7" width) and similar tires, there's a lot more rubber in touch with the road; contrast this with a 6" or 6.5" wide steel wheel and 185/60 tires, and I assume the performace combo isn't gonna want to roll as easily by comparison.
I assume there's a rolling resistance calculator floating around the 'net somewhere. Just gotta find it.
__________________
Kevin '07 Blazing Blue 5-speed liftback (sold) '08 Black auto liftback (sold) '09 Carmine Red auto 4-door liftback (sold) |
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