should i lift

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Jan 28, 2009 | 04:41 PM

#16

01xjsport

Junior Member

Joined: Jan 2009

Posts: 96

Likes: 0

Year: 2001

Model: Cherokee

Engine: 4.0L Power Tech I-6. TB spacer, 0630 head conversion

For those that have bigger tires/regeared. Don’t forget the Speedo is off. Cheek out this link.
http://www.4lo.com/calc/gearspeedo.htm You may think your mpg are good but with your speedo off it may be less.

Jan 28, 2009 | 04:46 PM

#17

01xjsport

Junior Member

Joined: Jan 2009

Posts: 96

Likes: 0

Year: 2001

Model: Cherokee

Engine: 4.0L Power Tech I-6. TB spacer, 0630 head conversion

Quote:

Originally Posted by offroadnut36

did you regear, if you have an auto tranny you should be running 4.56s

This is also a good link for regearing.
http://www.4lo.com/calc/geartire.htm
Stock tires on most XJ's are 225/75/15= 28.3" diameter

Jan 28, 2009 | 04:48 PM

#18

JakeWI

CF Veteran

Joined: Apr 2008

Posts: 3,569

Likes: 2

From: Wisconsin

Year: 1996

Model: Cherokee

Engine: 4.0 HO

the only thing about that calculation is that i am positive mine isnt off 5 mph

Jan 28, 2009 | 04:58 PM

#19

01xjsport

Junior Member

Joined: Jan 2009

Posts: 96

Likes: 0

Year: 2001

Model: Cherokee

Engine: 4.0L Power Tech I-6. TB spacer, 0630 head conversion

Quote:

Originally Posted by JakeWI

the only thing about that calculation is that i am positive mine isnt off 5 mph

Ok try this one. it's still 5 mph off.
http://www.miata.net/garage/tirecalc.html
for 31's use 265/75/15

Jan 28, 2009 | 05:43 PM

#20

JakeWI

CF Veteran

Joined: Apr 2008

Posts: 3,569

Likes: 2

From: Wisconsin

Year: 1996

Model: Cherokee

Engine: 4.0 HO

yeah i know what they say. but ive tried a couple other tests to, away from the calculators and behind other vehicles not much and my gps says 2-3 mph difference. either way, doesnt matter.