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Jeep Wrangler YJ
YJ General Discussion
Any performance advice for 2.5 4-cylinder?
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<blockquote data-quote="dodgerammit" data-source="post: 440856" data-attributes="member: 21375"><p>I'd advise using a gear ratio calculator like this one: <a href="http://www.grimmjeeper.com/gears.html" target="_blank">http://www.grimmjeeper.com/gears.html</a></p><p></p><p>Plug in your original tire size and ratio on the one side, than you can play with your new ratio and new tire size on the other side. You at least want to match your revs with the new setup. Keep in mind, larger tires and age affect the power a bit more than originally, and maybe compensate by going a bit lower on your ratio. ie: You do the math and a 4:10 is about the same as original in the rev dept, then go to 4.56s.</p></blockquote><p></p>
[QUOTE="dodgerammit, post: 440856, member: 21375"] I'd advise using a gear ratio calculator like this one: [URL]http://www.grimmjeeper.com/gears.html[/URL] Plug in your original tire size and ratio on the one side, than you can play with your new ratio and new tire size on the other side. You at least want to match your revs with the new setup. Keep in mind, larger tires and age affect the power a bit more than originally, and maybe compensate by going a bit lower on your ratio. ie: You do the math and a 4:10 is about the same as original in the rev dept, then go to 4.56s. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Any performance advice for 2.5 4-cylinder?
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