Speedometer recalibration for 19" tires - Drive Accord Honda Forums | radio-pro.ru
Reply
LinkBack Thread Tools Search this Thread Rate Thread Display Modes
post #1 of 17 Old 05-08-2013, 01:00 PM Thread Starter
1st Gear

Join Date: Apr 2013
location: CT
Posts: 31
Thanks: 0
Thanked 1 Time in 1 Post
Speedometer recalibration for 19" tires

Does the speedometer need to be recalibrated for the larger tires?? Being told this is the case by the dealer.

Dani0613 is offline
Advertisement

post #2 of 17 Old 05-08-2013, 01:13 PM
KH
6th Gear

KH's Avatar

Join Date: Nov 2012
location: Western Massachusetts
Posts: 1,138
Thanks: 0
Thanked 2 Times in 2 Posts
Depends on the overall diameter of the tires. Use this calculator to determine if it will be off, and if so, to what degree.




~Kevin
'03 NHBP Coupe 6-6, XLR8 V2 j-pipe, Borla stainless exhaust, Ingalls Torque Damper, TL-S Swaybars, Neuspeed short shifter, Eibach Pro springs, Wicked Tuning camber arms, '12 Coupe 18s with 235/45/18 tires, OEM Replica Spoiler, LED tails, exLED Interior Lights projector HLs, GTA Car Kit (iPhone and aux)
KH is offline
post #3 of 17 Old 05-08-2013, 01:37 PM Thread Starter
1st Gear

Join Date: Apr 2013
location: CT
Posts: 31
Thanks: 0
Thanked 1 Time in 1 Post
Theyre Honda Factory Performance wheels/tires. Theyre an accessory thru Honda.

^thank you!
Dani0613 is offline

post #4 of 17 Old 05-08-2013, 01:44 PM
KH
6th Gear

KH's Avatar

Join Date: Nov 2012
location: Western Massachusetts
Posts: 1,138
Thanks: 0
Thanked 2 Times in 2 Posts
That is irrelevant. Use the link, and compare the recommended 19" tire size with your stock specs. I believe your factory offset should be +55

~Kevin
'03 NHBP Coupe 6-6, XLR8 V2 j-pipe, Borla stainless exhaust, Ingalls Torque Damper, TL-S Swaybars, Neuspeed short shifter, Eibach Pro springs, Wicked Tuning camber arms, '12 Coupe 18s with 235/45/18 tires, OEM Replica Spoiler, LED tails, exLED Interior Lights projector HLs, GTA Car Kit (iPhone and aux)
KH is offline
post #5 of 17 Old 05-08-2013, 01:48 PM
.

namegoeshere's Avatar

Join Date: Oct 2006
Posts: 11,032
Thanks: 1
Thanked 509 Times in 347 Posts
Quote:
Originally Posted by Dani0613 View Post
Theyre Honda Factory Performance wheels/tires. Theyre an accessory thru Honda.
There's no such thing as Honda Factory Performance tires. If the difference between your new tire size and stock tire size is 3% or more, you might want to consider getting it recalibrated. Is it necessary? No, as long as you're aware of how the difference can affect you.

Quote:
Originally Posted by KH View Post
That is irrelevant. Use the link, and compare the recommended 19" tire size with your stock specs. I believe your factory offset should be +55
OP doesn't need to know/input offset to see difference in tire diameter.




If you have an EX, your stock tire size should be 215/55-17. A popular 19" tire size for 19" HFP wheels that's also close in diameter to stock would be 245/40-19. New tire would only be 1.5% larger. Not a big difference. A 235/40-19 size tire would be 0.3% larger, but you have less tire options and they're pricier too vs 245/40-19.
namegoeshere is offline
post #6 of 17 Old 05-08-2013, 02:10 PM Thread Starter
1st Gear

Join Date: Apr 2013
location: CT
Posts: 31
Thanks: 0
Thanked 1 Time in 1 Post
Thanks guys
Dani0613 is offline
post #7 of 17 Old 05-08-2013, 04:51 PM
4th Gear

dazednconfuzed's Avatar

Join Date: Nov 2012
location: Ajax Ontario
Posts: 335
Thanks: 1
Thanked 18 Times in 18 Posts
Only the TPMS needs to be recalibrated when changing rim/tire sizes.
dazednconfuzed is offline
The Following User Says Thank You to dazednconfuzed For This Useful Post:
Baldeagle (12-31-2014)
post #8 of 17 Old 12-30-2014, 03:54 PM
Persecutor

Persecutor's Avatar

Join Date: Mar 2014
location: Lafayette, Louisiana
Posts: 19
Thanks: 3
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by namegoeshere View Post
There's no such thing as Honda Factory Performance tires. If the difference between your new tire size and stock tire size is 3% or more, you might want to consider getting it recalibrated. Is it necessary? No, as long as you're aware of how the difference can affect you.



OP doesn't need to know/input offset to see difference in tire diameter.




If you have an EX, your stock tire size should be 215/55-17. A popular 19" tire size for 19" HFP wheels that's also close in diameter to stock would be 245/40-19. New tire would only be 1.5% larger. Not a big difference. A 235/40-19 size tire would be 0.3% larger, but you have less tire options and they're pricier too vs 245/40-19.
I have a 2014 Accord Sport and replaced the OEM 18" rims and 235/45R18 tires with Acura 19" rims and 245?40R19 tires (same size tires as 2009 Acura TL). What does re-calibration of the speedometer entail? What does it cost?

2014 Honda Accord Sport
aFe Takeda Intake and Exhaust
19" ACURA RDX Chrome rims 71758
Mayrun 245/40R19 tires
E&G Classics 2pc Fine Mesh Grille
TYPE S Emblem Trunk & Grille Badge
TruHart Lowering Spring & Struts
HIKARU HID 9005 High Beam, H11 Low Beam & H8 Fog Lights
60-SMD 1157 white/Amber Switchback LED Bulbs + Load Resistor
Switchback LED Tube Strip DRL White/Amber For Audi-Style
Painted Rear Wing Roof Spoiler
Eagle Eye BMW-style LED Tail Lights
Persecutor is offline
post #9 of 17 Old 12-30-2014, 04:36 PM
Beast mode!

Honda86's Avatar

Join Date: Mar 2014
location: Toronto Canada
Posts: 323
Thanks: 7
Thanked 30 Times in 25 Posts
I bought the HFP package so it came with the 19" wheels on it right from the Honda dealership so I'm not sure but I would hope it came calibrated..

2013 Accord EX-L V6 Coupe HFP
-Borla Axle Back
-Takeda Intake
-RV6 HFPC (Silver Ceramic Coated)
-Ktuner Flash End User Kit
-Window Tint
-Morimoto XB LED Fogs
-Weather Tech Floor Mats + Trunk Tray
Honda86 is offline
post #10 of 17 Old 12-30-2014, 04:38 PM
Out of Control

Baldeagle's Avatar

Join Date: Jan 2010
location: Central NJ
Posts: 3,754
Thanks: 396
Thanked 646 Times in 499 Posts
Quote:
Originally Posted by Dani0613 View Post
Does the speedometer need to be recalibrated for the larger tires?? Being told this is the case by the dealer.
• Recalibrate? Do you mean that if your speedometer is off, for ANY reason, you can calibrate it so that 60 mph reads exactly 60 mph? Please explain how. Also, most speedometers are not calibrated exactly. They often read fast, meaning if the speedometer reads 60 mph the car is actually travelling 58-59 mph.

• As already stated, if you buy the properly sized 19" tire, it will have essentially the same diameter (size) as ANY other stock 9th gen Accord tire. The speedometer's accuracy will remain essentially the same.

• Lastly, would someone clarify the relationship between TPMS and tire size? I thought the TPMS compared the "rolling distance" (circumference) of one tire to the others. If one tire spins at a rate lesser than the others, the computer concludes it must underinflated. Is that right? If not, please explain.

2012 Accord Coupe EX-L w/Nav, V6-6MT
2007 Accord Sedan EX-L w/Nav, V6-6MT (sold)
Baldeagle is offline
post #11 of 17 Old 12-30-2014, 04:54 PM
5th Gear

desertrat's Avatar

Join Date: Dec 2012
location: Eastern Oregon
Posts: 994
Thanks: 50
Thanked 125 Times in 107 Posts
Most gps receivers will give you an accurate speed readout. Compare that reading to the speedometer and you will see how far off it is at different speeds and compensate. A hand held unit such as the Garmin eTrex works fine for checking speedometers.

Tom
'14 Accord Sport 6MT
desertrat is offline
post #12 of 17 Old 12-30-2014, 05:53 PM
6th Gear

Kamdog's Avatar

Join Date: Mar 2014
location: New York
Posts: 1,645
Thanks: 86
Thanked 221 Times in 177 Posts
Quote:
Originally Posted by Baldeagle View Post
• Recalibrate? Do you mean that if your speedometer is off, for ANY reason, you can calibrate it so that 60 mph reads exactly 60 mph? Please explain how. Also, most speedometers are not calibrated exactly. They often read fast, meaning if the speedometer reads 60 mph the car is actually travelling 58-59 mph.

• As already stated, if you buy the properly sized 19" tire, it will have essentially the same diameter (size) as ANY other stock 9th gen Accord tire. The speedometer's accuracy will remain essentially the same.

• Lastly, would someone clarify the relationship between TPMS and tire size? I thought the TPMS compared the "rolling distance" (circumference) of one tire to the others. If one tire spins at a rate lesser than the others, the computer concludes it must underinflated. Is that right? If not, please explain.

The TPMS would have to be reset no matter what tire change is involved, even replacing it with the same tire. That is all he was saying.

2014 EX-L, I4 CVT MSM
2008 BMW 535i, Steptronic; European Delivery

Retired Accords
1989 LX MT
1994 EX MT <- my fave of all time before the bimmer
2003 LX MT
Kamdog is offline
The Following User Says Thank You to Kamdog For This Useful Post:
Baldeagle (12-31-2014)
post #13 of 17 Old 12-30-2014, 11:47 PM
Car so nice, bought twice

drowned12's Avatar

Join Date: Oct 2012
location: Chandler AZ
Posts: 4,327
Thanks: 14
Thanked 552 Times in 413 Posts
Quote:
Originally Posted by Dani0613 View Post
Theyre Honda Factory Performance wheels/tires. Theyre an accessory thru Honda.

^thank you!
There's calculators for this, but the 235/40/19 combo that is recommended for the HFP wheels (I also have them) is to keep the overal tire diameter similar to what it is with the 17 inch wheels.

I put on 245/40/19 which is 30% less expensive, but my speedo will read 71 mph when I'm actually going 75 mph on gps. With OEM wheels and tires my speedo was dead on accurate.

Unfortunately, don't think there's any calibration options (aside from TPMS). Getting an HDS end of this week so I'll play around with the menus and see if there's anything, but I doubt it. Maybe something changed with the 9G.

2012 Accord EX-L AT V6 Sdn Crystal Black Pearl / Ivory (
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
)
- CAI, J37 Intake + TB, TB Coolant Bypass, Ported Intake Runners, RV6 HFPC + JPipe (Ceramic Coated), PCV filter
- Koni FSDs, Voodoo13 6 Control Arms, Rear Ultra Racing Chassis Bracing, 22mm Rear + Acura TL Front, Akebono Performance Pads, Centric High Carbon Cryo rotors, SS lines.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

drowned12 is offline
post #14 of 17 Old 12-31-2014, 05:14 AM
6th Gear

Nossan's Avatar

Join Date: Sep 2013
location: Philly burbs
Posts: 1,115
Thanks: 107
Thanked 162 Times in 125 Posts
I love this calculator...

19" doesn't give any info regarding the speedo calibration. You need to input the tire size to calculate mileage.

Current:
2014 Accord Touring
White Orchid Pearl
OEM Splash Guards, Sill Plates, Wheel Locks

Past:
2014 Accord EX-L V6
Crystal Black Pearl
OEM Splash Guards, Air Deflector, Sill Plates, Wheel Locks

2013 Altima 2.5 SL
Bought back under lemon law
Nossan is offline
post #15 of 17 Old 12-31-2014, 06:05 AM
Out of Control

Baldeagle's Avatar

Join Date: Jan 2010
location: Central NJ
Posts: 3,754
Thanks: 396
Thanked 646 Times in 499 Posts
Quote:
Originally Posted by dazednconfuzed View Post
Only the TPMS needs to be recalibrated when changing rim/tire sizes.
This video confirms your statement for 9th Gen TPMS Calibration. To Dani0613, I suspect this is what your dealer meant - TPMS calibration and NOT speedometer calibration. (I don’t think there is any way to calibrate a speedometer.)



Sorry but I confused the word calibrate with program. Based on the link below, I knew the 9th gen TMPS systems do NOT have a sensor like my 8th gen. (New 8th gen sensors must be programmed.) The 9th system works off the ABS system.



Indirect TPMS

New for some Honda vehicles starting in 2013, indirect TPMS uses the vehicle’s ABS/VSA (Anti-lock Braking System/Vehicle Stability Assist) wheel speed sensors to calculate tire pressure. This method looks for changes in rotation or resonance that indicates low tire pressure. The system requires calibration any time the tire pressure is adjusted, if a tire is replaced, or if tires have been rotated. Vehicles with indirect TPMS have a calibration button located in the vehicle to initiate the calibration sequence. As of this post Honda models that have indirect TPMS include the 2013-2014 Accord, 2014 Civic, 2014 CR-V and 2015 Fit.”



2012 Accord Coupe EX-L w/Nav, V6-6MT
2007 Accord Sedan EX-L w/Nav, V6-6MT (sold)
Baldeagle is offline
Advertisement

Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Drive Accord Honda Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
The answer to the random question may be found under the Off Topic section of the forums and in the "Drive Accord Forums" category.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to


Related pages


infinity kappa 692.9i1996 honda accord repair manual1997 honda accord custom parts100 amp fusible linkwhat percent tint is legal in nypzev meaninghow to tint tail lights with plasti diphonda accord 2003 timing belt or chainhonda odyssey gps updatehonda 8th generation accord2006 honda accord rotor replacementmaaco package priceshonda accord coupe wheelsh11 lamphonda accord 1999 gas mileageokotokshondasupra dash kit2001 honda crv valve adjustment procedurewhen to check antifreezesaturn vue 5 speed2008 honda fit front bumper2007 honda crv tiresobsidian blue pearl odysseyheadlight lens clear coathonda accord coupe jdm02 sensor catalytic converter2004 honda civic transmission dipstickenkei rpf1 17x8 weightvossen vvs 0852003 acura mdx navigation codecv5 wheelsspyder tail lightaccord forums 7th gennew engine for honda accordarmrest cover for carhow to replace a deployed airbag1999 acura tl catalytic converterhonda 2003 recalls2005 acura tl oil filterhow much does engine coolant cost2006 honda accord stereo codeleaking schrader valvehonda crosstour modsddm tuning supportaverage of honda accordaccord mugenhonda accord sat nav updatehonda a13 service2001 isuzu rodeo transmission problemsdiy brake flush97 honda civic radio removal2005 acura rl batterypower steering pump ford taurusdrag dr-34 wheelsbest 6.5 component speakers under 200ctx65cshaynes vs chilton repair manuals2004 honda civic hood2003 honda accord catalytic convertercooper tires vs michelin tiressohc vtec turbocost to replace idle air control valvenegotiating car lease buyoutshocker emblemhonda civic engine wiring harnessbrakes feel loosecentric brake shoes reviewkicker amp sub combo2007 civic si clutch replacementhonda accord transmission costhonda accord 97 enginehonda accord cargo nethonda del sol fog lightsare quick release steering wheels illegal1991 honda accord exmodern steel metallic honda civicthule 400xtrhow to fix curb rash on wheels2000 honda accord wiper blades1995 honda accord radio