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Old 07-06-2011, 05:45 AM   #1
bigwayne3000

 
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Question for those with +10" wide rear tires

Looking to get Falken rims and go with a 10" or bigger rear tire, not sure what sizes I can put on a 20x10 rim yet though. Question is, how badly does going to a wider rear tire affect the MPG of the car? I get around 25 mpg now so roughly what would I be looking at with a 10-10.5" rear wheel?
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Old 07-06-2011, 07:26 AM   #2
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anyone, anyone at all...
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Old 07-06-2011, 07:30 AM   #3
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I have 11" wide wheels and tires and really haven't noticed any drop in mileage. I average about 27 on the interstate.
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Old 07-06-2011, 08:28 AM   #4
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Awesome, thanks for the help.
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Old 07-06-2011, 08:51 AM   #5
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On 11" rears I notice no diff in MPG. To answer your ? on max tire size for a 10" wheel, it is a 305 for a proper fit...
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Old 07-06-2011, 09:30 AM   #6
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Quote:
Originally Posted by Dr Jkel View Post
I have 11" wide wheels and tires and really haven't noticed any drop in mileage. I average about 27 on the interstate.
Seriously? 27, well I'm impressed.
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Old 07-06-2011, 10:19 AM   #7
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Seriously? 27, well I'm impressed.
27.4 at 65 mph Vengeance Stage II cam, Headers, cai. If I drive 55 I get 29, but who drives 55, LOL
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Old 07-06-2011, 11:23 AM   #8
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Probably just depends on the weight with rear tires... if your new wheels are lighter that the OEMs, you might even see a slight increase in MPGs.
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Old 07-06-2011, 11:26 AM   #9
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Mine are 66 lbs lighter than stock and i have seen an average of 2 mpg INCREASE in my fuel economy. The rears are 18x11 with 295/ 40 street tires and 315/40 drag radials.
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Old 07-08-2011, 02:26 PM   #10
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Quote:
Originally Posted by bigwayne3000 View Post
Looking to get Falken rims and go with a 10" or bigger rear tire, not sure what sizes I can put on a 20x10 rim yet though. Question is, how badly does going to a wider rear tire affect the MPG of the car? I get around 25 mpg now so roughly what would I be looking at with a 10-10.5" rear wheel?
I used the size guide sticky in this forum section to pick the correct tire size to rim. It was very helpful and easy to read. Especially for someone (me!)that doesn't know squat about tire/rim size combos.

I have 20x11 Forgeline rims with 315 Nitto NT-05's on the back. They fit fine.

Forgeline said to go with 20x 9.5's up front, so I listened (I originally ordered 20x10's for the front), and 275 Nitto NT05's.
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