The "Will it fit?" thread

Solo370z · 06-05-2023, 10:37 PM

Stock rims. Not lowered. Looking at 245 45 18 in the front 275 40 18 in the rear. Will I be ok ??

OptionZero · 06-07-2023, 02:55 PM

the OEM 19's come in the same width tires so you should be fine

Solo370z · 06-07-2023, 10:17 PM

Thank you
I was just worried with the offsets in the rear the 18s are +15 and the 19s are +30

OptionZero · 06-08-2023, 02:36 PM

rear fitment is never an issue, the Z34 can fit anything back there
even a 9.5 +15 in back shouldn't pose a problem

Solo370z · 06-08-2023, 07:41 PM

Awesome thanks

cooltoy · 08-23-2023, 10:43 AM

Well, it has time to purchase some new tires for the first time since I bought the original set.

I would like to go a little bit wider in the rear, while staying with in the proper Circumference percentage of the front to the rear, so as not to freak out the computer.

Here is my current set up on stock suspension.

20x9 +32 Front 245-35-20
20x10.5 +25 Rear 285-30-20

Question 1. What size should I go to in the rear if I were to keep the same size in front? 295-30-2? or go up to 305?

Question 2. What combination would work best, if I were to go wider in the front as well?

Thank you for the help.

Averying · 08-23-2023, 11:12 AM

Quote:

Originally Posted by cooltoy

Well, it has time to purchase some new tires for the first time since I bought the original set.

I would like to go a little bit wider in the rear, while staying with in the proper Circumference percentage of the front to the rear, so as not to freak out the computer.

Here is my current set up on stock suspension.

20x9 +32 Front 245-35-20
20x10.5 +25 Rear 285-30-20

Question 1. What size should I go to in the rear if I were to keep the same size in front? 295-30-2? or go up to 305?

Question 2. What combination would work best, if I were to go wider in the front as well?

Thank you for the help.

Use this tool to easily compare tire sizes.

https://tiresize.com/calculator/

Sent from my iPhone using Tapatalk

cooltoy · 08-23-2023, 11:20 AM

Thank you.

I am aware of tire calculators and have used them many times.

They are very helpful when trying to decide on rim offsets and clearances. I am not sure if they are so good on telling me if the front/rear tire combo that will not freak out our computer. I believe the ratios between the front tire and rear tire circumferences has to be within a certain percentage. So I just want to make sure that I do not exceed that prior to buying a set.

Thanks again.

Averying · 08-23-2023, 01:25 PM

Quote:

Originally Posted by cooltoy

Thank you.

I am aware of tire calculators and have used them many times.

They are very helpful when trying to decide on rim offsets and clearances. I am not sure if they are so good on telling me if the front/rear tire combo that will not freak out our computer. I believe the ratios between the front tire and rear tire circumferences has to be within a certain percentage. So I just want to make sure that I do not exceed that prior to buying a set.

Thanks again.

If you bumped up front and rear by 20mm to 265/35 and 305/30 you’ll have the same .4% difference in circumference as before, which is less than 1% so you would be fine. And with your wheel offsets I suspect these bigger tire sizes won’t be an issue

Sent from my iPhone using Tapatalk

SeeThruHead · 08-23-2023, 04:58 PM

https://www.willtheyfit.com/index.ph...-5&offset2=-10

will tell you speedo error if you put front in the left and rear in the right

SeeThruHead · 08-23-2023, 04:59 PM

https://www.willtheyfit.com/

will tell you speedo error if you put front in the left and rear in the right

cooltoy · 08-30-2023, 12:22 AM

Quote:

Originally Posted by Averying

If you bumped up front and rear by 20mm to 265/35 and 305/30 you’ll have the same .4% difference in circumference as before, which is less than 1% so you would be fine. And with your wheel offsets I suspect these bigger tire sizes won’t be an issue

Sent from my iPhone using Tapatalk

Ok. Thank you.

So, Please correct me if I am wrong, but if I wanted to keep my current fronts, I could go to 295 in the rear. It is 0.8% difference in circumference which is still under 1%.

Right?

Rusty · 08-30-2023, 04:52 AM

Quote:

Originally Posted by cooltoy

Ok. Thank you.

So, Please correct me if I am wrong, but if I wanted to keep my current fronts, I could go to 295 in the rear. It is 0.8% difference in circumference which is still under 1%.

Right?

No more than 3% difference.

TeaDubb · 04-08-2024, 02:03 PM

anyone have any pictures/feedback of 19x9.5 +38 19x10.5 +30? Looking at buying some used 57 Transcends.

Tires that would be mounted are 285/35 and 255/35

Averying · 04-08-2024, 03:50 PM

Quote:

Originally Posted by TeaDubb

anyone have any pictures/feedback of 19x9.5 +38 19x10.5 +30? Looking at buying some used 57 Transcends.

Tires that would be mounted are 285/35 and 255/35

Those offsets are a little weak but you could get around that with spacers. 9.5F +22, 10.5R +22 is a good “safe” setup.

Sent from my iPhone using Tapatalk

06-07-2023, 02:55 PM	#3347 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,223 Drives: 15 370Z Nismo 6MT Rep Power: 214100	the OEM 19's come in the same width tires so you should be fine __________________ OptionZero Build Thread

06-08-2023, 02:36 PM	#3349 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,223 Drives: 15 370Z Nismo 6MT Rep Power: 214100	rear fitment is never an issue, the Z34 can fit anything back there even a 9.5 +15 in back shouldn't pose a problem Solo370z likes this. __________________ OptionZero Build Thread

08-23-2023, 10:43 AM	#3351 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,966 Drives: 14 PW 370Z S/T MT Rep Power: 243722	Well, it has time to purchase some new tires for the first time since I bought the original set. I would like to go a little bit wider in the rear, while staying with in the proper Circumference percentage of the front to the rear, so as not to freak out the computer. Here is my current set up on stock suspension. 20x9 +32 Front 245-35-20 20x10.5 +25 Rear 285-30-20 Question 1. What size should I go to in the rear if I were to keep the same size in front? 295-30-2? or go up to 305? Question 2. What combination would work best, if I were to go wider in the front as well? Thank you for the help. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

08-23-2023, 11:20 AM	#3353 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,966 Drives: 14 PW 370Z S/T MT Rep Power: 243722	Thank you. I am aware of tire calculators and have used them many times. They are very helpful when trying to decide on rim offsets and clearances. I am not sure if they are so good on telling me if the front/rear tire combo that will not freak out our computer. I believe the ratios between the front tire and rear tire circumferences has to be within a certain percentage. So I just want to make sure that I do not exceed that prior to buying a set. Thanks again. __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

08-23-2023, 04:58 PM	#3355 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	https://www.willtheyfit.com/index.ph...-5&offset2=-10 will tell you speedo error if you put front in the left and rear in the right __________________ My Build thread STH Build Plan Thread Images too big fix here

06-05-2023, 10:37 PM	#3346 (permalink)
Solo370z Base Member Join Date: Nov 2022 Location: Toronto Posts: 4 Drives: 2017 370 Z Rep Power: 2	Stock rims. Not lowered. Looking at 245 45 18 in the front 275 40 18 in the rear. Will I be ok ??

06-07-2023, 10:17 PM	#3348 (permalink)
Solo370z Base Member Join Date: Nov 2022 Location: Toronto Posts: 4 Drives: 2017 370 Z Rep Power: 2	Thank you I was just worried with the offsets in the rear the 18s are +15 and the 19s are +30

06-08-2023, 07:41 PM	#3350 (permalink)
Solo370z Base Member Join Date: Nov 2022 Location: Toronto Posts: 4 Drives: 2017 370 Z Rep Power: 2	Awesome thanks

08-23-2023, 04:59 PM	#3356 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	https://www.willtheyfit.com/ will tell you speedo error if you put front in the left and rear in the right __________________ My Build thread STH Build Plan Thread Images too big fix here

04-08-2024, 02:03 PM	#3359 (permalink)
TeaDubb Base Member Join Date: Feb 2022 Location: Edmonton Posts: 7 Drives: 09 370z Rep Power: 3	anyone have any pictures/feedback of 19x9.5 +38 19x10.5 +30? Looking at buying some used 57 Transcends. Tires that would be mounted are 285/35 and 255/35

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