17x9 vs 18x9.5 for track use? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ShibusaTouge · 12-14-2017, 08:45 PM

I'm stuck between the benefits of each tire. The 18x9.5s can fit a 265, but weigh a tad more. The 17x9s are lighter, but are usually ran with a 245. Which is more important to you, lighter weight or more tire width?

18x9.5s

17x9s

Surok · 12-14-2017, 08:49 PM

i am running 17x9 right now with a 245/40
i am planning on running 18x10 and 285/30R18 because everybody else does that who is competing in time attack and if i dont have the same level of rubber on the road i wont be competitive. it is what it is.

ShibusaTouge · 12-14-2017, 08:52 PM

Quote:

Originally Posted by Surok

i am running 17x9 right now with a 245/40
i am planning on running 18x10 and 285/30R18 because everybody else does that who is competing in time attack and if i dont have the same level of rubber on the road i wont be competitive. it is what it is.

That's what I've noticed. I'd be right in the middle with 18x9.5s. That's what I'd prefer.

TommyW · 12-14-2017, 08:53 PM

Honestly? If you're new to tracking stick with stock tires and wheels. You'll learn a ton about slip angles. People are too quick to put on sticky tires when starting to track.

ShibusaTouge · 12-14-2017, 08:58 PM

Quote:

Originally Posted by TommyW

Honestly? If you're new to tracking stick with stock tires and wheels. You'll learn a ton about slip angles. People are too quick to put on sticky tires when starting to track.

I've been on track, no worries. I beat the snot out of my stock tires and suspension before upgrading. I'm just curious about everyone's opinions on the matter.

TommyW · 12-14-2017, 09:16 PM

Quote:

Originally Posted by ShibusaTouge

I've been on track, no worries. I beat the snot out of my stock tires and suspension before upgrading. I'm just curious about everyone's opinions on the matter.

But did you learn to be a better driver. Throwing a car around is one thing however learning car control is another issue. Beating the snot out of your equipment is no gauge of being a good driver.

ShibusaTouge · 12-14-2017, 09:23 PM

Quote:

Originally Posted by TommyW

But did you learn to be a better driver. Throwing a car around is one thing however learning car control is another issue. Beating the snot out of your equipment is no gauge of being a good driver.

Of course. There's always things to take away from every session. It'd be extremely naive to throw a car around without the intent of taking something away from it. I'm not here to discuss my driving, though. I'm here to discuss whether or not members prefer a wider tire or lighter wheel when it comes to wheel sizes.

Qc86 · 12-14-2017, 09:34 PM

Mmm stock power with 285?? Im run 17x9 with 245/40 and next i would go with a 255/40.

Surok · 12-14-2017, 09:40 PM

i wouldnt go over 225/40R18 on stock power.

i was 0.4 seconds slower on 245 than 225 on stock power.

TommyW · 12-14-2017, 09:54 PM

Quote:

Originally Posted by ShibusaTouge

Of course. There's always things to take away from every session. It'd be extremely naive to throw a car around without the intent of taking something away from it. I'm not here to discuss my driving, though. I'm here to discuss whether or not members prefer a wider tire or lighter wheel when it comes to wheel sizes.

with stock power the width and compound will prevail. You can never go wrong with a good 17x 225 for these cars.

cactus · 12-14-2017, 10:15 PM

17in tires being cheaper is a big reason to stick to 17s. 17x9 with a 200TW 245 or 255 is a lot of tire for an NA car.

Lust · 12-14-2017, 10:33 PM

Do you have that much power to need a 265 or wider tire? I know experienced drivers who have said they’re faster on a narrower tire.

wparsons · 12-14-2017, 11:16 PM

225's on a 17x8 at stock power, unless you're only looking to be competitive in autox, then 17x9 with 245's.

ShibusaTouge · 12-14-2017, 11:52 PM

Quote:

Originally Posted by Lust

Do you have that much power to need a 265 or wider tire? I know experienced drivers who have said they’re faster on a narrower tire.

Not talking about me in this instance. Just curious as to what everyone prefers.

12-14-2017, 08:45 PM	#1
ShibusaTouge Member Join Date: Dec 2017 Drives: 2300LB FRS Location: GA, USA Posts: 64 Thanks: 15 Thanked 33 Times in 17 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	17x9 vs 18x9.5 for track use? I'm stuck between the benefits of each tire. The 18x9.5s can fit a 265, but weigh a tad more. The 17x9s are lighter, but are usually ran with a 245. Which is more important to you, lighter weight or more tire width? 18x9.5s 17x9s

12-14-2017, 10:33 PM	#12
Lust Senior Member Join Date: Jun 2015 Drives: 2017 Subaru BRZ Location: California Bay Area Posts: 214 Thanks: 121 Thanked 105 Times in 55 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Do you have that much power to need a 265 or wider tire? I know experienced drivers who have said they’re faster on a narrower tire. __________________ CSG x Varis BRZ Build Thread \| Instagram

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12-14-2017, 08:49 PM	#2
Surok Wise old man Join Date: Jun 2012 Drives: 86 GTS Location: Sydney Posts: 1,003 Thanks: 999 Thanked 240 Times in 161 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	i am running 17x9 right now with a 245/40 i am planning on running 18x10 and 285/30R18 because everybody else does that who is competing in time attack and if i dont have the same level of rubber on the road i wont be competitive. it is what it is.

12-14-2017, 08:53 PM	#4
TommyW Senior Member Join Date: Feb 2017 Drives: '13 Whiteout Location: San Clemente Posts: 1,491 Thanks: 496 Thanked 1,242 Times in 673 Posts Mentioned: 10 Post(s) Tagged: 0 Thread(s)	Honestly? If you're new to tracking stick with stock tires and wheels. You'll learn a ton about slip angles. People are too quick to put on sticky tires when starting to track.

12-14-2017, 09:34 PM	#8
Qc86 Senior Member Join Date: Jan 2017 Drives: 2017 Toyota 86 M6 Location: Rouyn-Noranda, Quebec, Canada Posts: 103 Thanks: 21 Thanked 20 Times in 16 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Mmm stock power with 285?? Im run 17x9 with 245/40 and next i would go with a 255/40.

12-14-2017, 09:40 PM	#9
Surok Wise old man Join Date: Jun 2012 Drives: 86 GTS Location: Sydney Posts: 1,003 Thanks: 999 Thanked 240 Times in 161 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	i wouldnt go over 225/40R18 on stock power. i was 0.4 seconds slower on 245 than 225 on stock power.

12-14-2017, 10:15 PM	#11
cactus Senior Member Join Date: Sep 2013 Drives: 13 SWP BRZ Location: CA Posts: 183 Thanks: 118 Thanked 44 Times in 36 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	17in tires being cheaper is a big reason to stick to 17s. 17x9 with a 200TW 245 or 255 is a lot of tire for an NA car.

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