Rims match the computer
Thread Starter
Registered!!
Joined: Aug 2013
Posts: 147
Likes: 1
From: nyc
Rep Power: 0 
Rims match the computer
HI EVERYBODY, Hope your havng a great day!
I recently bought a 2003 civic ex with 14in rims(195/65/14 tires). As per the body sticker its supposed to have 15in rims (185/65/15 tires).
Is there a way I can check to see if the computer is set to 14in rims?
thanks in advance, alex
I recently bought a 2003 civic ex with 14in rims(195/65/14 tires). As per the body sticker its supposed to have 15in rims (185/65/15 tires).
Is there a way I can check to see if the computer is set to 14in rims?
thanks in advance, alex
Re: Rims match the computer
Can you change the computer to match your wheel size?
If no GPS your could have someone drive next to at a set speed and compare there speedometer to yours (if they have the proper wheel/ tire size for there vehicle).
If no GPS your could have someone drive next to at a set speed and compare there speedometer to yours (if they have the proper wheel/ tire size for there vehicle).
Thread Starter
Registered!!
Joined: Aug 2013
Posts: 147
Likes: 1
From: nyc
Rep Power: 0 Re: Rims match the computer
YES you are all right. I can even look for those radar signs that post your speed.
I have to pick up an obdi scanner and was wondering where to look for rim size changes if they even have such a setting.
I have to pick up an obdi scanner and was wondering where to look for rim size changes if they even have such a setting.
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 520 
Re: Rims match the computer
No, there is nothing that can be reprogrammed for different rims on that car.
The ONLY thing that will keep your speedo accuracy intact is to match the tire circumference in revolutions per mile (or KM if metric) to the original spec tire size. Any variation from original contributes to speedo error.
This has absolutely nothing to do with wheel size or rim diameter.
I researched tire sizes and picked a set of tires that were an exact match to the original tires' overall diameter.
I went from 15 inch wheels with 195-65-15 tires to 18 inch wheels with 225-40-18 tires, the speedo accuracy is still golden because the OVERALL tire diameter is the same.
I used the tire calculator at miatanet to figure mine up. http://www.miata.net/garage/tirecalcold.html
The ONLY thing that will keep your speedo accuracy intact is to match the tire circumference in revolutions per mile (or KM if metric) to the original spec tire size. Any variation from original contributes to speedo error.
This has absolutely nothing to do with wheel size or rim diameter.
I researched tire sizes and picked a set of tires that were an exact match to the original tires' overall diameter.
I went from 15 inch wheels with 195-65-15 tires to 18 inch wheels with 225-40-18 tires, the speedo accuracy is still golden because the OVERALL tire diameter is the same.
I used the tire calculator at miatanet to figure mine up. http://www.miata.net/garage/tirecalcold.html
Thread Starter
Registered!!
Joined: Aug 2013
Posts: 147
Likes: 1
From: nyc
Rep Power: 0 Re: Rims match the computer
No, there is nothing that can be reprogrammed for different rims on that car.
The ONLY thing that will keep your speedo accuracy intact is to match the tire circumference in revolutions per mile (or KM if metric) to the original spec tire size. Any variation from original contributes to speedo error.
This has absolutely nothing to do with wheel size or rim diameter.
I researched tire sizes and picked a set of tires that were an exact match to the original tires' overall diameter.
I went from 15 inch wheels with 195-65-15 tires to 18 inch wheels with 225-40-18 tires, the speedo accuracy is still golden because the OVERALL tire diameter is the same.
I used the tire calculator at miatanet to figure mine up. http://www.miata.net/garage/tirecalcold.html
The ONLY thing that will keep your speedo accuracy intact is to match the tire circumference in revolutions per mile (or KM if metric) to the original spec tire size. Any variation from original contributes to speedo error.
This has absolutely nothing to do with wheel size or rim diameter.
I researched tire sizes and picked a set of tires that were an exact match to the original tires' overall diameter.
I went from 15 inch wheels with 195-65-15 tires to 18 inch wheels with 225-40-18 tires, the speedo accuracy is still golden because the OVERALL tire diameter is the same.
I used the tire calculator at miatanet to figure mine up. http://www.miata.net/garage/tirecalcold.html
If you think a good mechanic is expensive, try hiring a bad one
Joined: Dec 2011
Posts: 32,017
Likes: 256
From: Midwest. Aiming about mid-chest
Rep Power: 520 Re: Rims match the computer
Sorry, can't do that at this moment.....
Use that tire calculator. Enter the correct size tire. Read the specs.
Play with the numbers to find a 14" tire that has the same overall diameter.
Parts catalog says 03 DX and LX cars got 185/70/14
EX got 185/65/15
Use that tire calculator. Enter the correct size tire. Read the specs.
Play with the numbers to find a 14" tire that has the same overall diameter.
Parts catalog says 03 DX and LX cars got 185/70/14
EX got 185/65/15
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
Bonobo
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
Oct 2, 2015 06:58 PM
260000milesgoal
I.C.E. (Audio) & Electrical Upgrades
2
Sep 25, 2015 07:41 PM
