TRACKTION CONTROL @ STABITITY CONTROLL - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

myioz86 · 04-26-2017, 01:40 AM

I am having a problem after putting on new tyres 245/18/40 . At high speed if i wiggle the steering wheel a little,

the stability control light comes on and starts applying brakes. This has never happened before.Is tyre size causing the problem? Old tyres were 235/18/40

swarb · 04-26-2017, 01:55 AM

Quote:

Originally Posted by myioz86

I am having a problem after putting on new tyres 245/18/40 . At high speed if i wiggle the steering wheel a little,

the stability control light comes on and starts applying brakes. This has never happened before.Is tyre size causing the problem? Old tyres were 235/18/40

Probably need to break in the tires, there is a small layer of oil on them that would reduce traction.

myioz86 · 04-26-2017, 02:03 AM

thanks, swarb Hope that,s all the problem is . Not a good feeling when you are doing speed and shit starts going on.

IceFyre13th · 04-26-2017, 04:43 PM

absolutely not tire size.......

Vmax911 · 04-27-2017, 03:11 PM

All 4 tires the same size? New tires will have a slightly larger diameter, and may be mismatched between front and rear.

myioz86 · 04-27-2017, 07:22 PM

Vmax911 i have 235/40/18 on the front and 245/40/18 on the rear. the rear tires are only 1 week old , front 3years old. Not shore if that would make any difference. will do some burnouts on the weekend and see if i can get that new oil,y stuff off the new tires.

nico_rsx · 04-27-2017, 09:00 PM

Your tires dont have the same circonference. The stability control see the wheels not turning at the same speed, and thinks wheels are spinning.
You need to have 4 tires of the same size.

Pekingduck · 04-29-2017, 12:18 PM

Did you get alignment after? I had similar issue after putting larger tire in the rear and one the rear lower arm were way off.

myioz86 · 05-15-2017, 10:21 PM

Think it was just the silocone on tyres problem has gone now that i have worn them in a bit.

04-26-2017, 01:40 AM	#1
myioz86 Member Join Date: May 2014 Drives: gt-86 2013 Location: cairns qld australia Posts: 71 Thanks: 0 Thanked 24 Times in 18 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	TRACKTION CONTROL @ STABITITY CONTROLL I am having a problem after putting on new tyres 245/18/40 . At high speed if i wiggle the steering wheel a little, the stability control light comes on and starts applying brakes. This has never happened before.Is tyre size causing the problem? Old tyres were 235/18/40

04-26-2017, 04:43 PM	#4
IceFyre13th Senior Member Join Date: Jun 2013 Drives: Mazdarati Location: Arizona Posts: 1,238 Thanks: 608 Thanked 1,369 Times in 675 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	absolutely not tire size....... __________________ It's only impossible if you stop to think about it.

04-29-2017, 12:18 PM	#8
Pekingduck Senior Member Join Date: Dec 2011 Drives: 4 wheels Location: Southern Cali Posts: 800 Thanks: 328 Thanked 419 Times in 177 Posts Mentioned: 22 Post(s) Tagged: 3 Thread(s)	Did you get alignment after? I had similar issue after putting larger tire in the rear and one the rear lower arm were way off. __________________ Pekingduck's Build thread http://www.ft86club.com/forums/showthread.php?t=5717

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04-26-2017, 02:03 AM	#3
myioz86 Member Join Date: May 2014 Drives: gt-86 2013 Location: cairns qld australia Posts: 71 Thanks: 0 Thanked 24 Times in 18 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	thanks, swarb Hope that,s all the problem is . Not a good feeling when you are doing speed and shit starts going on.

04-27-2017, 03:11 PM	#5
Vmax911 Senior Member Join Date: May 2013 Drives: WRB BRZ Location: ABQ Posts: 354 Thanks: 38 Thanked 89 Times in 58 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	All 4 tires the same size? New tires will have a slightly larger diameter, and may be mismatched between front and rear.

04-27-2017, 07:22 PM	#6
myioz86 Member Join Date: May 2014 Drives: gt-86 2013 Location: cairns qld australia Posts: 71 Thanks: 0 Thanked 24 Times in 18 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Vmax911 i have 235/40/18 on the front and 245/40/18 on the rear. the rear tires are only 1 week old , front 3years old. Not shore if that would make any difference. will do some burnouts on the weekend and see if i can get that new oil,y stuff off the new tires.

04-27-2017, 09:00 PM	#7
nico_rsx Senior Member Join Date: May 2016 Drives: BRZ 2017 Pure Red, MT Location: Quebec, Canada Posts: 309 Thanks: 122 Thanked 121 Times in 83 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Your tires dont have the same circonference. The stability control see the wheels not turning at the same speed, and thinks wheels are spinning. You need to have 4 tires of the same size.

05-15-2017, 10:21 PM	#9
myioz86 Member Join Date: May 2014 Drives: gt-86 2013 Location: cairns qld australia Posts: 71 Thanks: 0 Thanked 24 Times in 18 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Think it was just the silocone on tyres problem has gone now that i have worn them in a bit.

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