Wheel fitment questions

south · 04-13-2020, 07:42 PM

Hey so, im looking into getting a set of Chrome Rpf1’s 18x10.5 +15 in the rear and 18x9.5 +15 upfront. will these forsure clear the oem akebonos on my 370z? The car is lowered on H&R Springs, now i’m looking at tire setups I was thinking a 275/40/18 in the back and maybe a 245/40 upfront? Im not too sure on the front tire setup completely yet hence why im here. My questions are does anyone have this setup and can send me either their Ig or some pics of how it looks with this setup? Also will it rub in the rear or front? Anyone else have any other recommendations on tire setups that don’t rub but that have a decent amount of meat in the rear and the front looks good with the rear? I dont want it to look stupid.

Rusty · 04-13-2020, 09:51 PM

The tires you picked out won't work. They're 3.7% difference in height. Has to be less then 3%. A 255/40 in the front will put you at 2.5% difference. 3% and greater will set off your dash lights.

jchammond · 04-14-2020, 02:10 AM

Your front wheels are aggressive & will stick out about 1/2” further than the rears; unless you have FUCA’s & planning to really lean them in a lot

jchammond · 04-14-2020, 02:23 AM

Also, you have to decide mfg of tires & if you’re looking to stay stock diameter,,,as most who lower run about a 26” diameter rubber vs the 27’s.
255/40,285/35 would fit the wheels without bulging...but that front is gonna need some work.
It’s like taking an oem front 9.5” Nismo wheel & putting 25mm spacers behind it

south · 04-14-2020, 08:48 AM

Quote:

Originally Posted by Rusty

The tires you picked out won't work. They're 3.7% difference in height. Has to be less then 3%. A 255/40 in the front will put you at 2.5% difference. 3% and greater will set off your dash lights.

Would a 275/40/18 and a 255/40/18 work? The rears are 26.7” and the fronts would be just a 26” Also is a 275 a good fit for the 10.5 inch rim is that stretched at all or is that a good width?

04-13-2020, 07:42 PM	#1 (permalink)
south Base Member Join Date: Apr 2019 Location: New York Posts: 33 Drives: 09 370z Yellow 6Mt Rep Power: 6	Wheel fitment questions Hey so, im looking into getting a set of Chrome Rpf1’s 18x10.5 +15 in the rear and 18x9.5 +15 upfront. will these forsure clear the oem akebonos on my 370z? The car is lowered on H&R Springs, now i’m looking at tire setups I was thinking a 275/40/18 in the back and maybe a 245/40 upfront? Im not too sure on the front tire setup completely yet hence why im here. My questions are does anyone have this setup and can send me either their Ig or some pics of how it looks with this setup? Also will it rub in the rear or front? Anyone else have any other recommendations on tire setups that don’t rub but that have a decent amount of meat in the rear and the front looks good with the rear? I dont want it to look stupid.

04-13-2020, 09:51 PM	#2 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,884 Drives: 2011 Nismo GM 6M Rep Power: 2684436	The tires you picked out won't work. They're 3.7% difference in height. Has to be less then 3%. A 255/40 in the front will put you at 2.5% difference. 3% and greater will set off your dash lights. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

04-14-2020, 02:10 AM	#3 (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	Your front wheels are aggressive & will stick out about 1/2” further than the rears; unless you have FUCA’s & planning to really lean them in a lot __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

04-14-2020, 02:23 AM	#4 (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	Also, you have to decide mfg of tires & if you’re looking to stay stock diameter,,,as most who lower run about a 26” diameter rubber vs the 27’s. 255/40,285/35 would fit the wheels without bulging...but that front is gonna need some work. It’s like taking an oem front 9.5” Nismo wheel & putting 25mm spacers behind it __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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