08-28-2013, 09:40 PM | #43 | |
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None of these snow tires including the Blizzak will be quite as good in the dry as the stock tires but they aren't too bad. You would need to get into more of a performance/winter snow but then you will lose some ice/snow capability. |
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08-28-2013, 10:23 PM | #44 | |
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For less than expert winter drivers the Continental Extremewintercontacts cannot be surpassed as the best all round winter tire currently available. http://www.tirerack.com/tires/tires....eWinterContact Nokian makes good winter tires as do Michelin and Dunlop. Bridgestone makes total cr@p winter tires. They now own a big chunk of Nokian and those tires are not as good as they used to be. |
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08-28-2013, 10:29 PM | #45 | |
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08-28-2013, 10:31 PM | #46 | |
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08-28-2013, 10:54 PM | #47 |
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08-28-2013, 10:56 PM | #48 |
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People are adding weight to the back and think it helps? My god i feel like were trying to dyno the differences between stock and aftermarket flywheels.
The Continentals were alright, they wear down really fast, i used them for 5 months and they MIGHT last this winter again. Will see.
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08-28-2013, 11:12 PM | #49 | |
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While our weight distribution is not to the extreme of a pickup, 150lbs certainly makes a noticeable difference in acceleration with very negligible effects on braking and handling. |
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08-28-2013, 11:19 PM | #50 | |
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When it comes to snow its the slippage that causes us to lose control, thus the tire. The added weight wont' make any difference. I take this from experience, and trial and error. Not myths on the internet.
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08-28-2013, 11:32 PM | #51 |
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Weight over the axle makes all the difference in acceleration which is why a FWD car will smoke a RWD car taking off from a stop with comparable drivers in slippery conditions whether it is snow or rain. If what you are saying is true, RWD drag cars wouldn't have suspensions that shift their weight to the rear axle and race cars wouldn't have aero to increase down force.
Last edited by TRev; 08-28-2013 at 11:55 PM. |
08-29-2013, 03:44 AM | #52 |
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I'm looking at winter tires, and I notice Bridgestone has come out with a new Blizzak, the LM-32, it looks like a replacement for the LM-60. It has a higher speed rating than the LM-60s (V vs H), so I imagine they're even grippier in the dry.
Anyone have any information on these new Blizzaks yet?
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08-29-2013, 10:09 AM | #53 |
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08-29-2013, 11:10 AM | #54 | |
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08-29-2013, 03:37 PM | #55 |
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@TRev @Suberman
Where µ is the coefficient of friction (irrelevant if we’re comparing identical cars with the exception of added weight in the rear), a is the longitudinal distance from the center of gravity (CG) to the front axle, b is the longitudinal distance from the CG to the rear axle, m is the mass of the car, g is the acceleration due to gravity, h is the vertical distance from the ground to the CG, l is the distance from the front axle to the rear, Rr is the rolling resistance of the tires. In our discussion, the only difference will be the weight distribution as well as the overall mass of the car. Acceleration: http://cars.about.com/od/scion/fr/20...r-S-Review.htm 53% front (a/l = 0.53), 47% rear (b/l = 0.47) weight distribution, m*g (stock) = 2800 lbs, m*g (added) = 2950 lbs, I’ll assume the CG remains at the same height although that’s probably not entirely true it shouldn’t be affected too much. The equation gets much simpler, as shown. Stock: Wf = 2800*0.53 = 1484, Wr = 2800*0.47 = 1316. New: Wf = 1484, Wr = 1466 (not perfect, I know, but close enough for argument’s sake) > a/l = 50.3%, b/l = 49.7%. So the weight in the front hasn’t changed (a/l) so your maximum tractive effort (maximum acceleration) hasn’t changed. Steering: The equation that matters is the understeer gradient. The cornering stiffness will not change, nor will the weight in the front. More weight in the rear will cause this gradient to become more negative, meaning the car will oversteer more. Note: This is not perfect and the assumptions for maximum tractive effort can be disputed; however, the math for the understeer gradient is simple and a car with more weight in the rear than previous will oversteer more heavily than previous. Thought I'd sum up the engineering behind your discussion. Last edited by Soulman03; 08-29-2013 at 03:43 PM. Reason: Changing image |
08-30-2013, 12:46 PM | #56 |
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My winter setup:
205/60-16 Firestone Winterforce (non-studded) on WRX wheels. This setup got me through a week of very icy weather last year that I would have had zero chance of getting through with the stock tires. I have yet to take this setup through very thick snow however, and since the tires are taller than stock, it leaves no room for cables/chains. |
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