Spedo question!
01-05-2012, 08:25 PM
#1
Seasoned Member
Thread Starter
Join Date: Dec 2011
Location: Wenatchee, WA
Posts: 319
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0L Renix
Spedo question!
How much is my spedo going to be off with my stock gears and stuff with 31's? I can't tell if it's on or not. On my Ranger I had 33's and I got pulled over for going 73 when my spedo said 64 so now I'm somewhat worried about my XJ's spedo and I feel like I'm going faster than what it's actually saying! Maybe I'm just over reacting..
01-05-2012, 11:17 PM
#2
CF Veteran
Join Date: Aug 2011
Location: Nor-Cal Coast
Posts: 10,489
Likes: 0
Received 17 Likes
on
17 Posts
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
You'd think someone here would know. I use the county road markers. For instance, if I drove 50 miles and the odometer said I went 45, I'd know I was under reading 10%. (cause it would have been 10 in 100).
So 40 mph would be 44, 70 would really be 77...ect.
So 40 mph would be 44, 70 would really be 77...ect.
01-05-2012, 11:51 PM
#3
Seasoned Member
Thread Starter
Join Date: Dec 2011
Location: Wenatchee, WA
Posts: 319
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: 4.0L Renix
Yea I'm surprised no one has said anything because I've seen plenty of people with 31's and stock gears!
01-06-2012, 12:20 AM
#4
CF Veteran
Join Date: Aug 2011
Location: Nor-Cal Coast
Posts: 10,489
Likes: 0
Received 17 Likes
on
17 Posts
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
2 x pi x R is the circumference. If you wanted to give yourself a headache with a calculator you could punch it out! 
(pie= 3.14, R=1/2 Diameter)
(pie= 3.14, R=1/2 Diameter)
01-06-2012, 07:56 AM
#6
Member
Join Date: Jul 2011
Location: Atlanta / Florida
Posts: 199
Likes: 0
Received 1 Like
on
1 Post
Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
Thread
Thread Starter
Forum
Replies
Last Post
Kydude7
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
7
09-20-2015 06:35 AM
codykrr
Modified XJ Cherokee Tech
9
09-18-2015 01:27 PM
mach3lude
Modified XJ Cherokee Tech
17
09-10-2015 02:34 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)