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Old 05-23-2016, 02:36 PM   #3123
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Originally Posted by Killerbee View Post
I'd go for 245/35/18 square, otherwise this should be about flush

What would the advantage be? Not doubting you or anything just would like it explained for a newbie
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Old 05-23-2016, 02:50 PM   #3124
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What would the advantage be? Not doubting you or anything just would like it explained for a newbie
no worries, it's always good to ask if you're not sure.

First, there is no real need to go 235 front and 245 rear, as flushness is mostly determined by your wheels/offset/spacers. Also, with a 245 square you could swap the tires front/rear to keep the set longer (normally rwd cars uses tires in the rear faster)

The 35% tire flank compared to a 40% tireflank is near to factroy standart, which should always be your goal.

245/35/18 is only 0.5% off from factory standart
245/40/18 is 4.5% off from factory standart.
235/40/18 is 3.2% off from factory standart.

hope that helps, if you need more info just let me know
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Old 05-23-2016, 03:00 PM   #3125
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Quote:
Originally Posted by Killerbee View Post
no worries, it's always good to ask if you're not sure.

First, there is no real need to go 235 front and 245 rear, as flushness is mostly determined by your wheels/offset/spacers. Also, with a 245 square you could swap the tires front/rear to keep the set longer (normally rwd cars uses tires in the rear faster)

The 35% tire flank compared to a 40% tireflank is near to factroy standart, which should always be your goal.

245/35/18 is only 0.5% off from factory standart
245/40/18 is 4.5% off from factory standart.
235/40/18 is 3.2% off from factory standart.

hope that helps, if you need more info just let me know


Thanks man! Also, is the 4% difference really that noticeable? Because going to 245/35 over 245/40 would noticeably affect wheel gap. This is just my DD, no racing or tracking or anything, so although I want to keep performance as much as possible, minor decreases in performance that aren't too noticeable are worth the trade off for a solid look to me. However if the handling difference is very noticeable, I will sacrifice cosmetics.
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Old 05-23-2016, 03:18 PM   #3126
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Originally Posted by hypebrz View Post
Thanks man! Also, is the 4% difference really that noticeable? Because going to 245/35 over 245/40 would noticeably affect wheel gap. This is just my DD, no racing or tracking or anything, so although I want to keep performance as much as possible, minor decreases in performance that aren't too noticeable are worth the trade off for a solid look to me. However if the handling difference is very noticeable, I will sacrifice cosmetics.
not that much to do with performance as such, however, while the "wheel gap" will be 1.4cm less, it will also lift your car 1.4cm from the ground.
Also the sidewall will be 1.4cm "bigger" - both resulting in a more "offroadish" look.
Aside from that your speedo will be showing -4% the speed you're actually going.
If you're ok with all that, there is nothing against going for 245/40/18. Just because its not "ideal" or I would do something else, does not make it wrong :-)
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Old 05-23-2016, 03:20 PM   #3127
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Originally Posted by Killerbee View Post
not that much to do with performance as such, however, while the "wheel gap" will be 1.4cm less, it will also lift your car 1.4cm from the ground.
Also the sidewall will be 1.4cm "bigger" - both resulting in a more "offroadish" look.
Aside from that your speedo will be showing -4% the speed you're actually going.
If you're ok with all that, there is nothing against going for 245/40/18. Just because its not "ideal" or I would do something else, does not make it wrong :-)


Haha so what you're saying is when I am going 100 my speedo will display 96 mph?
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Old 05-23-2016, 03:34 PM   #3128
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Haha so what you're saying is when I am going 100 my speedo will display 96 mph?
No, you will be going faster. The outside diameter is larger per revolution.

25.72" tire =80.79" per rev

24.75" tire = 77.76" per rev

3+" farther per rev


Tire specs grabbed from...
http://www.tirerack.com/content/tire.../en/tires.html

Best tire calc in my opinion...
http://www.discounttire.com/dtcs/infoTireMath.do
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Old 05-23-2016, 10:22 PM   #3129
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Here is a strange question for all of you. I was looking at 16 inch wheels to improve my dirt driving experience, but then I came across these 15 inch rally wheels from method. they are 5x100, 15x7 inch with 48mm offset. I'm a noob when it comes to this, so go easy. Will this fit in the BRZ on stock suspension? And, are there tires out there that will keep my speedometer reasonably accurate?

http://www.methodracewheels.com/coll...-rally-vt-spec
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Old 05-24-2016, 12:13 AM   #3130
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Main thing if they will clear stock brakes.
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Old 05-26-2016, 04:21 PM   #3131
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Originally Posted by Hot Wheels View Post
Here is a strange question for all of you. I was looking at 16 inch wheels to improve my dirt driving experience, but then I came across these 15 inch rally wheels from method. they are 5x100, 15x7 inch with 48mm offset. I'm a noob when it comes to this, so go easy. Will this fit in the BRZ on stock suspension? And, are there tires out there that will keep my speedometer reasonably accurate?

http://www.methodracewheels.com/coll...-rally-vt-spec
I have only seen one pic of 15's. I would go 16s for what you are trying to do. 5x100 Wrx wheels bolt right on. And are usually found on craigslist with tires for cheap. My $0.02

Edit: Tires, yes. use this tire calc to figure out your size. enter the stock size and play with the other numbers. you want to match the outside diameter. http://www.discounttire.com/dtcs/infoTireMath.do
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Old 05-27-2016, 12:44 PM   #3132
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hello people. What do you think about this fitment? I'm trying to run 0 camber if any. stock brakes + stock height ( for now) 18x9.5 et 38(Front)18x10 et 44(Rear)

Also considering a 255 in the rear and a 235 in the front as far as tires go
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Old 05-27-2016, 01:57 PM   #3133
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hello people. What do you think about this fitment? I'm trying to run 0 camber if any. stock brakes + stock height ( for now) 18x9.5 et 38(Front)18x10 et 44(Rear)

Also considering a 255 in the rear and a 235 in the front as far as tires go
It's not going to fit with out coilovers. Some camber is good. You will need at least -1 for traction and fitment. Probably more like -2.5 to -3 judging from this thread...

http://www.ft86club.com/forums/showthread.php?t=38557
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Old 05-30-2016, 05:58 PM   #3134
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I got the following wheel setup all around

18x8.75 +33 wheels
255/40 tires
TRD lowering springs (1-1.25")

What do I have to do to make this fit with no rubbing issues?
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Old 05-30-2016, 06:47 PM   #3135
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I got the following wheel setup all around

18x8.75 +33 wheels
255/40 tires
TRD lowering springs (1-1.25")

What do I have to do to make this fit with no rubbing issues?
Best case, you're good (its super tight, but could work)
Worst case, get 245/35/18 tires and it will work.

Also note that the 255/40/18 are not ideal from the diameter to be used on our cars. However, not ideal does not mean impossible to do :-)
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Old 05-30-2016, 07:42 PM   #3136
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Quote:
Originally Posted by Killerbee View Post
Best case, you're good (its super tight, but could work)
Worst case, get 245/35/18 tires and it will work.

Also note that the 255/40/18 are not ideal from the diameter to be used on our cars. However, not ideal does not mean impossible to do :-)
What do you mean by "not ideal?" Are we talking just the speedometer being thrown off, or are there some performance impacts as well?

Also, just from looking around, I've seen a few people talk about needing to cut/trim something they call a bumper tab in the rear wheel well to make some larger tires fit? Can anyone tell me more about that?
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