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Old 11-06-2011, 04:01 PM   #1
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30 to 31 inch tires ?

I have 30 x 9.5015 tires on my 97 TJ 4 cyl stick
with 31 inch tires would I feel the difference ?


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Old 11-06-2011, 04:10 PM   #2

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when i switched i did notice a slight decrease in power, mainly on the highway but they definitely look much nicer.

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Old 11-06-2011, 04:17 PM   #3
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I didn't notice any difference but I have a 6cyl.
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Old 11-06-2011, 04:21 PM   #4
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if you do lot of uphill drives and highway you will notice a slight decrease as JustinTxz said,
From my personal experience, i had a 4cyl stick chevy colorado pickup truck on something like 29 or 28.5 inches and i got 31 inch, the decrease was so bad going uphill that i had to send them back
this is the drawback having a 4 cyl engine lack of power for lifts, and wheels, but enough power if you keep it on factory standards.
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Old 11-07-2011, 07:03 AM   #5
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I went from 30's to 31's. Noticed a very small difference, but after 2 or 3 days I didnt notice it anymore.
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Old 11-07-2011, 07:25 AM   #6
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did it this week, havent noticed much difference
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Old 11-07-2011, 12:47 PM   #7
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When I went from a 28" tire to a 31x11.5 tire - I couldn't tell a difference myself. Note: at the time I was running a 3.07 gear ratio.
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Old 11-07-2011, 12:50 PM   #8
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Originally Posted by IslandTJ View Post
When I went from a 28" tire to a 31x11.5 tire - I couldn't tell a difference myself. Note: at the time I was running a 3.07 gear ratio.
Same scenerio here. I regeared to 4.56 BEFORE I went to 33" tires.
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Old 11-07-2011, 01:01 PM   #9
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I have 4.0 3.73 5 sp.
I went from 30" to 31" and I DID feel the difference. Its more of a personal feel thing but I did feel it big time. It also matters how/where you drive. The bigger tires also increase rotating mass.
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Old 11-07-2011, 01:33 PM   #10
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I have a 2006 - 6 speed & went from 30's to 31's. Didn't feel any different to me. Sure looks better.

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