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Old 09-19-2016, 03:19 PM   #31 (permalink)
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Quote:
Originally Posted by 06Aveo43061 View Post
They're 1 1/4" wider than my factory wheels (I get bad winters, was originally for more tire on the road during our bad winters).
Winter Tech Information - Size Selection of Winter / Snow Tires

http://tires.about.com/od/understand...ter-Wheels.htm

Narrower is better for winter...

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Old 09-19-2016, 03:26 PM   #32 (permalink)
Stock MPG 22city/32 hwy
 
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Quote:
Originally Posted by samwichse View Post
I did not know that. Always good to get quality incorrect information from your local Discount Tire tech
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Old 09-19-2016, 06:22 PM   #33 (permalink)
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It's not just snow, also standing water (hydroplaning).

What's the rolling diameter of the stock 14" tire?

If you seriously improve the aerodynamics of the car, one of the side effects is that you'll need to revise the axle ratio, most easily done by oversizing the tire. If your target diameter turns out to be 28" then you qualify for 30% less rolling resistance:


http://ecomodder.com/forum/showthread.php/bridgestone-announces-large-diameter-narrow-tires-25208-9.html#post407899

Compare the BMW i3 bolt diameter to you car's. Fitting 19" wheels is the trick. The whole 16-page thread is here:
http://ecomodder.com/forum/showthrea...res-25208.html
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Old 09-19-2016, 06:31 PM   #34 (permalink)
Stock MPG 22city/32 hwy
 
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Quote:
Originally Posted by freebeard View Post
It's not just snow, also standing water (hydroplaning).

What's the rolling diameter of the stock 14" tire?

If you seriously improve the aerodynamics of the car, one of the side effects is that you'll need to revise the axle ratio, most easily done by oversizing the tire. If your target diameter turns out to be 28" then you qualify for 30% less rolling resistance:


http://ecomodder.com/forum/showthread.php/bridgestone-announces-large-diameter-narrow-tires-25208-9.html#post407899

Compare the BMW i3 bolt diameter to you car's. Fitting 19" wheels is the trick. The whole 16-page thread is here:
http://ecomodder.com/forum/showthrea...res-25208.html
I honestly have no idea about my stock tire stats. Like I've said in other posts, I don't know anything about cars, aerodynamics, or pretty much anything else when it comes to cars. I'll have to review that thread. Thanks for the link and information.

Personally though, I feel my car performs much better in snow/rain/dry conditions than it did with the poker chips it came with stock. But maybe that's the placebo effect, mind over matter. Also, I got these wheels well before I was even aware of ecomodding a car, or maximizing MPG
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Old 09-19-2016, 07:41 PM   #35 (permalink)
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I like nice wheels too.

Quote:
– Center Bore: 56.6 mm
– Lug Size: M12 x 1.5
– Wheel Fasteners: Lug nuts
...
– Tire: 155/80R13
– Rim: 5Jx13 ET45
– PCD: 4x100
Chevrolet Aveo 2005 - Wheel & Tire Sizes, PCD, Offset and Rims specs - Wheel-Size.com

Quote:
– Center Bore: 66.7 mm
– Lug Size: M14 x 1.25
– Wheel Fasteners: Lug bolts
...
– Tire:155/70R19
– Rim:5Jx19 ET43
– PCD:5x112
BMW i3 2013 - Wheel & Tire Sizes, PCD, Offset and Rims specs - Wheel-Size.com

So, aside from wheel well clearance, the nut to crack is 4(studs)x100(mm) vs 5(studs)x112(mm). It's like putting Porsche wheels on a VW, you can use adapters or get blank drums and rotors and have them drilled for the correct pattern. But get the rims and first set of tires from a wrecking yard.

Quote:
Personally though, I feel my car performs much better in snow/rain/dry conditions than it did with the poker chips it came with stock. But maybe that's the placebo effect, mind over matter.
There's rim vs tread width, rubber compound, tread pattern, shoulder radius, inflation pressure. Different tires have different uses — street/track/off road.
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Old 09-19-2016, 08:32 PM   #36 (permalink)
Stock MPG 22city/32 hwy
 
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thanks for the info. That was a considerable help to understand the benefits of tire size ect.

I actually had no desire to get wheels for this car ever. But my steel factory wheel got bent 2 winters ago by a vicious pot hole. I went in to get an replacement wheel, and my current aftermarket wheels were on sale for 29.99 each. Only reason why I got them.

I'm going to have to do some research and see if the cost to replace my current wheel tire situation equals the MPG savings to justify the expense.
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Old 09-20-2016, 12:36 AM   #37 (permalink)
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I glossed over things like wheel offset and whether it centers on the bolt circle or on the hole in the center.

Will you let the projected savings dictate a budget, or cost out the swap and see how long it takes to pay out? Costs depend on a whole lotta things, new/used, etc. I suggested junkyard parts.

If you look at the car's energy budget, rolling resistance and friction go up with speed on a flat curve, but aerodynamic drag is on an exponential curve. So reducing rolling resistance offers returns at low speeds that aero doesn't.

It all starts at the tires contact patch. A tall, narrow tire on a light-weight rim gets you off on the right foot. Every other mod benefits.
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Old 09-20-2016, 10:03 AM   #38 (permalink)
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When it comes tire time I'd go with these and keep the 16" wheels.

https://simpletire.com/nokian-195-55r16-t428758-tires

LLR, only one size wider than stock, 7% taller so a little more OD. Doubt the Aveo is much lighter than my Cobalt XFE and 195 seem narrow enough for good winter traction.

15" WRG3s are about $45 cheaper each so if you could find some cobalt 15" 4 lug wheel cheap could maybe save a little more.

Last edited by roosterk0031; 09-20-2016 at 10:11 AM..
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Old 09-20-2016, 12:15 PM   #39 (permalink)
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For what it's worth, the traction in deep snow with my car's stock 165 width tires is a heck of a lot better than in my father's truck (245 width), or even with my in-laws's Prius (195 width). I can't count how many mornings I drove around my in-laws' Prius which was stuck trying to get out of their driveway, and my father's truck gets stuck in wet grass.

Granted, there are other factors. The truck is RWD, the Prius is heavier, and my Insight's rear wheels are closer together than the fronts, so it's not an apples to apples comparison.

Anyway, I'm following this thread with interest. It may take you a while to really sink your teeth into it, but your Aveo probably has some great potential.
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Old 09-20-2016, 12:32 PM   #40 (permalink)
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7% will get you a ways down the road.

Did you notice in Permalink #35 the stock wheel spec says it's 13"? Maybe that's same year, same make, different model.

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