275/35/20 Front and 305/35/20 Rear, is it possible?

Joey Z · 06-14-2017, 01:28 AM

Need help with wondering if I should use 305/35/20 or 305/30/20 in the rear and same with the fronts, 35 or 30. (Just thinking of using 35 ratio all around that's why.) Would like to hear if possible, thx.

jchammond · 06-14-2017, 03:21 AM

If I was to do it & had 1" staggered wheels; I would choose 285/30,305/30/20
26.8/27.2" diameter. Less likely a chance of Christmas tree effect & speedometer will be close to perfect.
35's are tall & unsure turning abilities...+ speedometer will read slower than actual speed.
Usually can get by with 2 width size's & same series wheels...also unsure the look of a tire almost 3/4" taller (3/8" more sidewall showing in back).
Just my thoughts...as mine are 26.8"F,27.2"R on 19's with no issues.

Joey Z · 06-14-2017, 11:39 AM

Quote:

Originally Posted by jchammond

If I was to do it & had 1" staggered wheels; I would choose 285/30,305/30/20
26.8/27.2" diameter. Less likely a chance of Christmas tree effect & speedometer will be close to perfect.
35's are tall & unsure turning abilities...+ speedometer will read slower than actual speed.
Usually can get by with 2 width size's & same series wheels...also unsure the look of a tire almost 3/4" taller (3/8" more sidewall showing in back).
Just my thoughts...as mine are 26.8"F,27.2"R on 19's with no issues.

Thanks for the response, guess I'm just gonna do the 305/30/20 rear then instead of 305/35, I just figured like to even out the ratios and just have a width difference but I dunno.

OptionZero · 06-14-2017, 03:22 PM

there's no need to "even out the ratios". This isn't baking

Tire diameter is what needs evening out.

275/35/20 is 27.6 inches. OEM front is 245/40/19 which is 26.7 inches. You are nearly
one inch taller than stock

I suggest either:
275/30/20 F, 315/25/20 R
or
285/30/20 F, 325/25/20

This is given your desire to run a good amount of tire in front.

Most folks run 265/35 F, 305/30 R in 19 inch sizing

nomodsjk · 06-14-2017, 03:34 PM

I have 275/35/20 and 315/35/20 but i have the niko wide body kit which is pretty damn wide. I also have 20mm spacers in the rear to make it herra frush..

NorthStyle · 06-14-2017, 10:57 PM

I have a better question: What size and offsets are the wheels you have or plan on getting? Everyone is throwing sizes out without knowing how wide they actually are and whether you want a stretched or meaty looking setup, much less how much room you have to work with.

06-14-2017, 01:28 AM	#1 (permalink)
Joey Z Base Member Join Date: Feb 2017 Location: Miami, Florida Posts: 33 Drives: 2009 Nissan 370Z Rep Power: 8	275/35/20 Front and 305/35/20 Rear, is it possible? Need help with wondering if I should use 305/35/20 or 305/30/20 in the rear and same with the fronts, 35 or 30. (Just thinking of using 35 ratio all around that's why.) Would like to hear if possible, thx.

06-14-2017, 03:21 AM	#2 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 57 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684394	If I was to do it & had 1" staggered wheels; I would choose 285/30,305/30/20 26.8/27.2" diameter. Less likely a chance of Christmas tree effect & speedometer will be close to perfect. 35's are tall & unsure turning abilities...+ speedometer will read slower than actual speed. Usually can get by with 2 width size's & same series wheels...also unsure the look of a tire almost 3/4" taller (3/8" more sidewall showing in back). Just my thoughts...as mine are 26.8"F,27.2"R on 19's with no issues. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

06-14-2017, 03:22 PM	#4 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,159 Drives: 15 370Z Nismo 6MT Rep Power: 203226	there's no need to "even out the ratios". This isn't baking Tire diameter is what needs evening out. 275/35/20 is 27.6 inches. OEM front is 245/40/19 which is 26.7 inches. You are nearly one inch taller than stock I suggest either: 275/30/20 F, 315/25/20 R or 285/30/20 F, 325/25/20 This is given your desire to run a good amount of tire in front. Most folks run 265/35 F, 305/30 R in 19 inch sizing __________________ OptionZero Build Thread

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06-14-2017, 03:34 PM	#5 (permalink)
nomodsjk Premium Member Join Date: Apr 2014 Location: martinsburg wv Posts: 2,073 Drives: 2011 370z MB/7at Rep Power: 19961	I have 275/35/20 and 315/35/20 but i have the niko wide body kit which is pretty damn wide. I also have 20mm spacers in the rear to make it herra frush..

06-14-2017, 10:57 PM	#6 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,235 Drives: 2011 370Z Nismo Rep Power: 24276	I have a better question: What size and offsets are the wheels you have or plan on getting? Everyone is throwing sizes out without knowing how wide they actually are and whether you want a stretched or meaty looking setup, much less how much room you have to work with.