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General Forums => The Mess Hall => Topic started by: alnobles on July 14, 2006, 07:17:15 PM

Title: what gear should I re-gear to?
Post by: alnobles on July 14, 2006, 07:17:15 PM
I have got to get more top end out of my 4 banger or someone is going to run me over!  I've heard re-gearing is the best way to go, but I don't know what I should re-gear to.  I'm driving a '97 tj with 31's and a 2" lift.  Any help would be greatly appreciated.  Also, what kind of speed increases will this get me?  Thanks.
Title: what gear should I re-gear to?
Post by: Oilsmoke on July 14, 2006, 09:14:02 PM
Well you need to state what tranny your jeep has. Planned upgrade for the future. tires  engine mods etc...
than i am sure you will get a few answers.
Title: Re: what gear should I re-gear to?
Post by: Jeffy on July 14, 2006, 09:24:36 PM
Quote from: "alnobles"
I have got to get more top end out of my 4 banger or someone is going to run me over!  I've heard re-gearing is the best way to go, but I don't know what I should re-gear to.  I'm driving a '97 tj with 31's and a 2" lift.  Any help would be greatly appreciated.  Also, what kind of speed increases will this get me?  Thanks.


http://www.4bangerjp.com/forums/viewtopic.php?t=173
Title: what gear should I re-gear to?
Post by: alnobles on July 14, 2006, 11:31:38 PM
Quote from: "Oilsmoke"
Well you need to state what tranny your jeep has. Planned upgrade for the future. tires  engine mods etc...
than i am sure you will get a few answers.


I've got a 5sp. manual and no plans to go bigger on the tires.  if I go to 4.88 instead of 4.56, what will happen to my gas mileage?
Title: what gear should I re-gear to?
Post by: Jeffy on July 15, 2006, 12:12:01 AM
Quote from: "alnobles"
Quote from: "Oilsmoke"
Well you need to state what tranny your jeep has. Planned upgrade for the future. tires  engine mods etc...
than i am sure you will get a few answers.


I've got a 5sp. manual and no plans to go bigger on the tires.  if I go to 4.88 instead of 4.56, what will happen to my gas mileage?


Go here (http://www.jeeptech.com/javaAps/gta.html) and plug in the ratios for the transmission, transfer case and axle and it will give you a chart that plots RPM's to your speed.  Look at your shift points and you'll get an idea what ti will be like to drive at those RPM's.