Wheel size/offset?

ClemsonVQdude · 07-31-2018, 12:10 PM

I know there’s a lot of threads on this and I know about the wheel fitment calculator and all that but I need an answer for my exact situation, i have a 2013 370 base model, so that’s
front - 225/50/18, 18x8 +43 offset
Rear - 245/45/18, 18x9 +15 offset
Correct?
So, I have 1.5 inch spacers in the back and 1.25 inch in the front, I’m wanting to go up to 245/40/18 in the front and 275/45/18 in the back and also wanting some concave aftermarket wheels. Im not exactly sure how the whole offset thing works and how the spacers affect it, what should I be looking for in a wheel in terms of width and offset for it to look right and not throw everything off?

NorthStyle · 07-31-2018, 12:43 PM

[Official] 370z wheel fitment guide (pics/specs) only

The "Will it fit?" thread

...and if you want to see 18-inch specific:

18's on a 370z

ClemsonVQdude · 08-01-2018, 10:43 AM

Quote:

Originally Posted by NorthStyle

[Official] 370z wheel fitment guide (pics/specs) only

The "Will it fit?" thread

...and if you want to see 18-inch specific:

18's on a 370z

I’ve seen the thread, but almost none of them say if they are running spacers or not. And if they are it’s not the same size as mine. My main question is how are the spacers going to affect the offset

skidro · 08-01-2018, 11:04 AM

I just installed forgestar f-14's on my black 2018 base model. Fronts are 18x9 with +25 offset and backs are 18x10 with +15 offset. Tires are 245/45/18 front and 275/40/18 rear. I am not using any spacers and am very pleased with the fit. I'm sorry that I cannot show a photo, but I do not own a cell phone or a camera. The fit is very close to, but not quite flush and I could not be more pleased. Stance is exactly how I hoped it would look. Went with polished copper finish and it looks amazing with the magnetic black paint. Purchased from "get your wheels" and the guys there are very professional and quite helpful. I was worried about the wheels surviving the shipping from California to Pennsylvania, but the wheels were packed extremely well. Let me know if you have any questions.

skidro

nizzan4u2nv · 08-01-2018, 12:01 PM

Quote:

Originally Posted by ClemsonVQdude

I’ve seen the thread, but almost none of them say if they are running spacers or not. And if they are it’s not the same size as mine. My main question is how are the spacers going to affect the offset

if you have a 40 offset, you will have an effective offset of approximately 15mm with a 1in spacer.

1 in = 25mm (approx)

40mm - 25mm = 15mm

ClemsonVQdude · 08-01-2018, 02:21 PM

Quote:

Originally Posted by nizzan4u2nv

if you have a 40 offset, you will have an effective offset of approximately 15mm with a 1in spacer.

1 in = 25mm (approx)

40mm - 25mm = 15mm

So I should be looking for wheels with around +40 offset?

nizzan4u2nv · 08-01-2018, 02:33 PM

Quote:

Originally Posted by ClemsonVQdude

So I should be looking for wheels with around +40 offset?

It all depends on the look youre trying to achieve. In most cases id say no.

KamiSpeed · 08-02-2018, 04:18 PM

Ok, so this thread is a bit confusing! But, hopefully I can clear it up somewhat.

In your case, you want a flush concave wheel setup. In order for you to get a concave face wheel installed, then you NEED to uninstall the spacers you currently have. Since if you leave them on, the new wheels you purchase need to have a high offset to compensate, which in turn, leads to a flat faced wheel.

Most popular 18" size wheels for flush concave 370Z are going to be this:

18x9.5 +12 ~ +22 Front
18x10.5 +12 ~ +22 OR 18x11.0 +15 ~ +20

There are a lot of different variations, but this seems to be the standard without any work to the fenders (i.e. rolling / pulling). But, again. Those sizes you can run, but WITHOUT spacers.

Check this 370Z out. Sitting on Enkei RS05-RR 18x9.5 +22 Front / 18x11.0 +16 Rear

Is this the type of setup you are looking at?

cooltoy · 08-02-2018, 08:35 PM

Quote:

Originally Posted by KamiSpeed

I miss Carlitos.

bunk · 08-02-2018, 08:46 PM

Quote:

Originally Posted by KamiSpeed

Ok, so this thread is a bit confusing! But, hopefully I can clear it up somewhat.

In your case, you want a flush concave wheel setup. In order for you to get a concave face wheel installed, then you NEED to uninstall the spacers you currently have. Since if you leave them on, the new wheels you purchase need to have a high offset to compensate, which in turn, leads to a flat faced wheel.

Most popular 18" size wheels for flush concave 370Z are going to be this:

18x9.5 +12 ~ +22 Front
18x10.5 +12 ~ +22 OR 18x11.0 +15 ~ +20

There are a lot of different variations, but this seems to be the standard without any work to the fenders (i.e. rolling / pulling). But, again. Those sizes you can run, but WITHOUT spacers.

Check this 370Z out. Sitting on Enkei RS05-RR 18x9.5 +22 Front / 18x11.0 +16 Rear

Is this the type of setup you are looking at?

How much of a drop is that and what are the tire specs? That's perfect for what I'm looking for!

OptionZero · 08-02-2018, 11:05 PM

Quote:

Originally Posted by bunk

How much of a drop is that and what are the tire specs? That's perfect for what I'm looking for!

It's 285/35/18 and 295/35/18

from here:
18's on a 370z

OptionZero · 08-02-2018, 11:08 PM

Quote:

Originally Posted by jchammond

If your spacers are as thick as you posted (1.5"F & 1.25"R)(38mm & 32mm), then you have turned your base wheels into 18x8+5,18x9-17

Quote:

Originally Posted by jchammond

more negative camber will give you wheel lean...Roughly 1/2" per degree.
Factory specs have the rear wheels negative camber'd twice as much as front.

Quote:

Originally Posted by jchammond

So, I have 1.5 inch spacers in the back and 1.25 inch in the front, I’m wanting to go up to 245/40/18 in the front and 275/45/18 in the back and also wanting some concave aftermarket wheels. Im not exactly sure how the whole offset thing works and how the spacers affect it, what should I be looking for in a wheel in terms of width and offset for it to look right and not throw everything off?

As amusing as it is to watch this keep going, everyone's making this so much harder than it needs to be, including our clueless thread starter

Instead of ******* around with spacer math (which really . . . isn't that hard)

TAKE OFF THE SPACERS

YOU ARE ALREADY BUYING NEW WHEELS

DUMP THE SPACERS

GET WHEELS IN THE SIZE AND OFFSET YOU WANT

Dig through the wheel threads

Find a look that you like

Copy the sizes

Find a wheel you like

Get the nearest possible sizes

Buy those wheels and tires and whatever other ****

Install

Done

its REALLY simple

given that you don't seem to understand wheel sizing and you're asking about 18's, i'm going to assume an aggressive setup involving coilovers and suspension arms and custom alignment and fenderwork is more than you're looking for

so just copy someone on springs and shocks and be done with it

cooltoy · 08-02-2018, 11:10 PM

Quote:

Originally Posted by bunk

How much of a drop is that and what are the tire specs? That's perfect for what I'm looking for!

Swift Spec-R Lowering Springs. SPC Rear Camber Arms Kit.

Wheels: Enkei RS05RR
Color: Mate Gunmetal
Specs: 18x9.5+22 (F) & 18x11+16 (R)
Tires: 285/35/18 (F) & 295/35/18 (R)

ClemsonVQdude · 08-03-2018, 01:14 PM

Quote:

Originally Posted by KamiSpeed

Ok, so this thread is a bit confusing! But, hopefully I can clear it up somewhat.

In your case, you want a flush concave wheel setup. In order for you to get a concave face wheel installed, then you NEED to uninstall the spacers you currently have. Since if you leave them on, the new wheels you purchase need to have a high offset to compensate, which in turn, leads to a flat faced wheel.

Most popular 18" size wheels for flush concave 370Z are going to be this:

18x9.5 +12 ~ +22 Front
18x10.5 +12 ~ +22 OR 18x11.0 +15 ~ +20

There are a lot of different variations, but this seems to be the standard without any work to the fenders (i.e. rolling / pulling). But, again. Those sizes you can run, but WITHOUT spacers.

Check this 370Z out. Sitting on Enkei RS05-RR 18x9.5 +22 Front / 18x11.0 +16 Rear

Is this the type of setup you are looking at?

Yes. Thats the answer I was looking for, thanks!

OptionZero · 08-02-2018, 06:08 PM

does OP know that spacers are removable?

07-31-2018, 12:10 PM	#1 (permalink)
ClemsonVQdude Base Member Join Date: Dec 2017 Location: Anderson SC Posts: 52 Drives: 2013 Nissan 370z Rep Power: 8	Wheel size/offset? I know there’s a lot of threads on this and I know about the wheel fitment calculator and all that but I need an answer for my exact situation, i have a 2013 370 base model, so that’s front - 225/50/18, 18x8 +43 offset Rear - 245/45/18, 18x9 +15 offset Correct? So, I have 1.5 inch spacers in the back and 1.25 inch in the front, I’m wanting to go up to 245/40/18 in the front and 275/45/18 in the back and also wanting some concave aftermarket wheels. Im not exactly sure how the whole offset thing works and how the spacers affect it, what should I be looking for in a wheel in terms of width and offset for it to look right and not throw everything off? Last edited by ClemsonVQdude; 08-01-2018 at 10:44 AM.

08-02-2018, 04:18 PM	#8 (permalink)
KamiSpeed A True Z Fanatic Join Date: Feb 2011 Location: Orlando, FL Posts: 5,888 Drives: 09 370z Rep Power: 26	Ok, so this thread is a bit confusing! But, hopefully I can clear it up somewhat. In your case, you want a flush concave wheel setup. In order for you to get a concave face wheel installed, then you NEED to uninstall the spacers you currently have. Since if you leave them on, the new wheels you purchase need to have a high offset to compensate, which in turn, leads to a flat faced wheel. Most popular 18" size wheels for flush concave 370Z are going to be this: 18x9.5 +12 ~ +22 Front 18x10.5 +12 ~ +22 OR 18x11.0 +15 ~ +20 There are a lot of different variations, but this seems to be the standard without any work to the fenders (i.e. rolling / pulling). But, again. Those sizes you can run, but WITHOUT spacers. Check this 370Z out. Sitting on Enkei RS05-RR 18x9.5 +22 Front / 18x11.0 +16 Rear Is this the type of setup you are looking at? Omnibeelzemo, ClemsonVQdude and KapitalZ like this. __________________ KAMISPEED \| SHOP 370Z PERFORMANCE PARTS & MODS \| SUPPORT@KAMISPEED.COM KAMI SPEED REVIEWS \| FINANCE YOUR PARTS WITH US \| MILITARY & FIRST RESPONDERS PRE-ORDER DEPOSIT PROGRAM \| HKS MASTER SELLER

08-02-2018, 06:08 PM	#15 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,253 Drives: 15 370Z Nismo 6MT Rep Power: 214100	does OP know that spacers are removable? cooltoy likes this. __________________ OptionZero Build Thread

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07-31-2018, 12:43 PM	#2 (permalink)
NorthStyle A True Z Fanatic Join Date: Aug 2015 Location: Deutschland + SC/FL USA Posts: 1,275 Drives: 2011 370Z Nismo Rep Power: 24277	[Official] 370z wheel fitment guide (pics/specs) only The "Will it fit?" thread ...and if you want to see 18-inch specific: 18's on a 370z

08-01-2018, 11:04 AM	#4 (permalink)
skidro Base Member Join Date: Sep 2017 Location: pa Posts: 12 Drives: 370z coupe Rep Power: 8	I just installed forgestar f-14's on my black 2018 base model. Fronts are 18x9 with +25 offset and backs are 18x10 with +15 offset. Tires are 245/45/18 front and 275/40/18 rear. I am not using any spacers and am very pleased with the fit. I'm sorry that I cannot show a photo, but I do not own a cell phone or a camera. The fit is very close to, but not quite flush and I could not be more pleased. Stance is exactly how I hoped it would look. Went with polished copper finish and it looks amazing with the magnetic black paint. Purchased from "get your wheels" and the guys there are very professional and quite helpful. I was worried about the wheels surviving the shipping from California to Pennsylvania, but the wheels were packed extremely well. Let me know if you have any questions. skidro