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Old 01-24-2017, 11:47 AM
Victor750 Victor750 is offline
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Default Tune/ change tire size

I currently have the factory 275/65/20. I'm wanting to switch to 35 12.50 20. My question is will the change in size affect my shift points or anything else with the tune? Thanks in advance.
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Old 01-24-2017, 12:54 PM
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TLyons90 TLyons90 is offline
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It will have a slight difference in your "gear ratio" but not huge. It would be smart to have the tune updated for the tire size which will also help with any wrong on your speedo.
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Old 01-24-2017, 01:25 PM
Victor750 Victor750 is offline
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Quote:
Originally Posted by TLyons90 View Post
It will have a slight difference in your "gear ratio" but not huge. It would be smart to have the tune updated for the tire size which will also help with any wrong on your speedo.
Are you talking about going in on the tuner and changing size?
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Old 01-24-2017, 04:11 PM
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Your stock tires are 34" tall, so you're talking about a pretty minor change. This is especially true when you consider that many "35s" are less than 35" tall. I didn't notice any difference when I made the same change.
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Old 01-24-2017, 08:34 PM
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Quote:
Originally Posted by Victor750 View Post
Are you talking about going in on the tuner and changing size?
What tune/tuner do you have?
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2013 F350 Lariat Dually
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RCX Dual Steering Stabilizer
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Old 01-25-2017, 02:51 AM
Victor750 Victor750 is offline
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Thanks for the input guys. I have the Ngauge.
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Old 01-26-2017, 11:41 AM
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Quote:
Originally Posted by Victor750 View Post
Thanks for the input guys. I have the Ngauge.
I don't have any expierence with n gauge. Custom tunes on it or there canned tunes on it?
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