Nissan 370Z Forum  

changing tire size and ECU/abs problem

Dude, check your maths ....... 265/35R19 is ~ 668mm in diameter and 285/35R19 is ~ 682 mm in diameter. Difference is outside tolerance (just) and is enough to upset the

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Track / Autocross / Drifting / Dragstrip


Like Tree8Likes
  • 2 Post By BGTV8
  • 1 Post By Rusty
  • 1 Post By Rusty
  • 2 Post By Brendan
  • 2 Post By JARblue

 
 
LinkBack Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 12-08-2016, 12:27 AM   #3 (permalink)
A True Z Fanatic
 
Join Date: Dec 2009
Location: 03350 Australia
Posts: 1,515
Drives: 09 Nissan 370Z M6
Rep Power: 39974
BGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond reputeBGTV8 has a reputation beyond repute
Default

Dude, check your maths ....... 265/35R19 is ~ 668mm in diameter and 285/35R19 is ~ 682 mm in diameter.

Difference is outside tolerance (just) and is enough to upset the ABS calibration.

The ABS brake controller is monitoring the number of rotations front and rear to detect a locked (or about to lock) wheel and because ofn the sizes, it is getting confused as it will not tolerate more than ~3% difference in diameter and rotation speed. This is NOT in the ECU, it is in the ABS controller.

I run 265/35R18 front and back on 10" wide rims for track duty - for DD use I have a set of 245/45R18 and 275/40R18.

Your tyre size choice is the problem and a fix in the ABS controller is probably beyond anyone other that the ABS system OEM.
gomer_110 and Brendan like this.
BGTV8 is offline   Reply With Quote
 

Bookmarks


Posting Rules
You may not post new threads
You may not 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Widest tire size to put on base 18" rims with spacers ? What size? Mynamedoublem Wheels & Tires 16 06-23-2021 01:10 PM
Anyone dropped nd with this tire size having problem?? Rafiton Wheels & Tires 1 11-21-2014 01:13 PM
Changing tire size on same Venaci Rim seahorse12 Wheels & Tires 6 01-28-2014 02:08 PM
changing tire profile size dangerous? MD-370z Wheels & Tires 22 09-07-2011 08:20 PM
Tire size laricb Wheels & Tires 3 03-06-2011 06:33 PM


All times are GMT -5. The time now is 10:17 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2