I want more grip than the stock tires with 18x8.5 wheels. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

HachiRokuX · 06-28-2018, 01:14 PM

Hi everyone, I ordered a set of Work Emotion Kiwami wheels with a +38 offset. I decided on a 225/40/r18 square setup and basically want to know:

1. 225/40/18 is a bit stretched on an 18x8.5 wheel. Will it be super easy to curb and scratch up my rims? I hope not.

2. I live in Florida, do I really need all season tires? It seems that the summer tires are grippier and it isn't always raining here. Surely most summer tires in 225/40 have better grip than the stock 215/45 Primacy tires in dry+wet conditions.

3. Would basically anything on tire rack that costs around 150+ per tire have better grip than the primacy tires? I see so many tires at around $600 for a set and that seems a bit cheap to me.

I was thinking about these Pirelli P Zero tires:

https://www.tirerack.com/tires/tires...num=24YR8PZ4XL

Or Continental Extreme Contact all seasons:

https://www.tirerack.com/tires/tires...m=24YR8DWS06XL

Thank you all in advance for your help.

StraightOuttaCanadaEh · 06-28-2018, 01:38 PM

From personal experience I can say:

1. Yes

2. No

3. Yes. The stock tires can be pretty terrifying. It's like they have minds of their own. Got rid of mine after a week.

Vital · 06-28-2018, 01:51 PM

1) Yes

2) No

3) Look into Firestone Firehawk Indy 500 tires. Great tires at a low cost i recently bought these tires and im happy with them as are other members who have bought them.

HachiRokuX · 06-28-2018, 01:57 PM

Thanks guys, I read that I should be fine up to 235/40/18 on TRD springs so I might go that route with the firestone tires.

Is 235/40/18 too much tire for stock power, though? Heavy wheels and tires will already make it feel a bit more sluggish and 235 seems a bit wide if I want okayish acceleration. I’ve never tried it so idk.

Sent from my iPhone using Tapatalk

Leonardo · 06-28-2018, 02:12 PM

https://tiresize.com/calculator/

Use a tire size comparison calculator. It will show you the difference in sizes. A 235/40 is fairly tall at 25.4", which is a 3.3% diameter difference. +/- 3.0% is generally the rule, though 235/40 will work ok. Personally, I'd get a sticky 225/40/18. The tire selection in this size is HUGE, prices are lower because it is a common size, and it is within the prescribed diameter range.

225/40 compared to the 235/40
If you get the Fire hawk, the 235/40 is only .1 inches wider, but costs $27 more each, weighs 1lbs more, and will make your speedo less accurate.

Tire specs pulled from Tirerack.com

Vital · 06-28-2018, 02:27 PM

I agree with Leonardo. I know the stretch look is subjective, but I have seen the tire and wheel spec in person and to me it was a slight stretch. I didn't think it was too bad. If you can help it stick with the 225/40/18.

06-28-2018, 01:14 PM	#1
HachiRokuX Senior Member Join Date: Mar 2017 Drives: 2017 Toyota 86 Location: Florida Posts: 232 Thanks: 1,712 Thanked 117 Times in 73 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I want more grip than the stock tires with 18x8.5 wheels. Hi everyone, I ordered a set of Work Emotion Kiwami wheels with a +38 offset. I decided on a 225/40/r18 square setup and basically want to know: 1. 225/40/18 is a bit stretched on an 18x8.5 wheel. Will it be super easy to curb and scratch up my rims? I hope not. 2. I live in Florida, do I really need all season tires? It seems that the summer tires are grippier and it isn't always raining here. Surely most summer tires in 225/40 have better grip than the stock 215/45 Primacy tires in dry+wet conditions. 3. Would basically anything on tire rack that costs around 150+ per tire have better grip than the primacy tires? I see so many tires at around $600 for a set and that seems a bit cheap to me. I was thinking about these Pirelli P Zero tires: https://www.tirerack.com/tires/tires...num=24YR8PZ4XL Or Continental Extreme Contact all seasons: https://www.tirerack.com/tires/tires...m=24YR8DWS06XL Thank you all in advance for your help.

06-28-2018, 01:38 PM	#2
StraightOuttaCanadaEh Wes Join Date: Feb 2017 Drives: Artisan Spirits '17 86 Location: Toronto Posts: 2,798 Thanks: 1,172 Thanked 1,677 Times in 996 Posts Mentioned: 21 Post(s) Tagged: 0 Thread(s)	From personal experience I can say: 1. Yes 2. No 3. Yes. The stock tires can be pretty terrifying. It's like they have minds of their own. Got rid of mine after a week. __________________ Instagram: @gt86ws

06-28-2018, 02:12 PM	#5
Leonardo Country Boy 4 Life Join Date: Jul 2012 Drives: 19' & 06' Ridgelines, 13' FR-S Location: EUGENE Posts: 5,228 Thanks: 6,719 Thanked 5,291 Times in 2,720 Posts Mentioned: 47 Post(s) Tagged: 1 Thread(s)	https://tiresize.com/calculator/ Use a tire size comparison calculator. It will show you the difference in sizes. A 235/40 is fairly tall at 25.4", which is a 3.3% diameter difference. +/- 3.0% is generally the rule, though 235/40 will work ok. Personally, I'd get a sticky 225/40/18. The tire selection in this size is HUGE, prices are lower because it is a common size, and it is within the prescribed diameter range. 225/40 compared to the 235/40 If you get the Fire hawk, the 235/40 is only .1 inches wider, but costs $27 more each, weighs 1lbs more, and will make your speedo less accurate. Tire specs pulled from Tirerack.com __________________ I LIKE TIRES!

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06-28-2018, 01:51 PM	#3
Vital Senior Member Join Date: Jun 2016 Drives: 2015 BRZ Location: Texas Posts: 692 Thanks: 213 Thanked 336 Times in 254 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	1) Yes 2) No 3) Look into Firestone Firehawk Indy 500 tires. Great tires at a low cost i recently bought these tires and im happy with them as are other members who have bought them.

06-28-2018, 01:57 PM	#4
HachiRokuX Senior Member Join Date: Mar 2017 Drives: 2017 Toyota 86 Location: Florida Posts: 232 Thanks: 1,712 Thanked 117 Times in 73 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Thanks guys, I read that I should be fine up to 235/40/18 on TRD springs so I might go that route with the firestone tires. Is 235/40/18 too much tire for stock power, though? Heavy wheels and tires will already make it feel a bit more sluggish and 235 seems a bit wide if I want okayish acceleration. I’ve never tried it so idk. Sent from my iPhone using Tapatalk

06-28-2018, 02:27 PM	#6
Vital Senior Member Join Date: Jun 2016 Drives: 2015 BRZ Location: Texas Posts: 692 Thanks: 213 Thanked 336 Times in 254 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	I agree with Leonardo. I know the stretch look is subjective, but I have seen the tire and wheel spec in person and to me it was a slight stretch. I didn't think it was too bad. If you can help it stick with the 225/40/18.

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