G50 wheel fitment

[ceningolmo]

First and foremost, sorry if this is a repost. I read the FAQ, the New Tire Thread and the New Wheel Thread in the Technical:Wheels/Tires forum, but still had questions. My searches got me either way too much or way too little information depending on the search string. If this is a repost, simply post a link to the thread I should have read and I will go back about my business and try not to be a nuissance.

I have tried a few different wheel offset calculators. And, the information is pretty handy. But, it doesn't mean a whole lot to me. I don't have any experience with wheel fitment, so I don't have the foggiest clue what most of the information means... but, rather than guess I think I should ask the experts.

I have seen "max" wheel width for the front on the G50 ranging from 8" to 9", and tire width from 235 to 255 depending on the site I am referencing. The rear shows an even wider range of "max" sizes. Tire Rack lists that the rear can take up to 10" wheel width and a 275 tire, while most other sites list the max closer to 8.5" and a max tire width of either 245 or 255.

Also, when I run this information through the offset calculators it will tell me how much closer the outside and inside edge the tire will be to the wheel well. But, I don't know how much room there is to move within the G50 wheel well. How wide can the rear wheel be without bumping in to the outside edge and potentially damaging the body, or rubbing the inner side of the rear wheel well a la Elwesso.

Finally, a question about load ratings. Most sites, including Tire Rack, don't list information about load rating. Or, if they do, I couldn't find it... which is entirely possible. Since the Q weighs roughly the same as a small Battleship, I know load ratings are important (thanks to the experts in the Tech:Wheel/Tire forum). I believe I need a minimum load rating of 95. Does this sound right, and if so, how do I find out which wheels support this?

so.. I am looking for some help. Again, my apologies if this is a repost.

[elwesso]

Well heres the deal.......

Id say you have about 20mm from the stock wheels to the outside..... I dont know the specs of the stock wheels off hand, but im sure you can find that.....

Basically, you cannot run anything wider than 275 in the rear without rubbing as far as im aware of, youd hvae to have at least 40mm or more on an 8.5 in wide wheel.....

My 265s arent too wide, theyre just too tall+wide... 265-35 shouldnt rub..

Honestly, if you find some wheels post them up and I can tell you if theyll work and also recommend some decent tires for them.

[nchopp]

As to load ratings for our Iowa class battleship on land, yes, 95 is the minimum. But if you plan on any high-speed jaunts, higher is definitely a good plan.

[ceningolmo]

Stock wheels are 15x6.5 with 45 offset. Stock tires are 215/65R 15.

And, yes Wes, I know I have plenty of work ahead of me before I need to worry about wheels. Under Plenum, Actsus, knock sensors, etc, etc,....

However, I have a friend who is the GM at my local Discount Tire... so, if I give him some notice on what specs I am looking for, he will find me wheels/tires to meet those specs for next to free. I am just trying to think ahead.

[ceningolmo]

As to load ratings for our Iowa class battleship on land, yes, 95 is the minimum. But if you plan on any high-speed jaunts, higher is definitely a good plan.

So... where do I look to find load rating specs? Sounds like this is important... I don't want to mess it up.

[elwesso]

I think you could go another 20mm on the outside edge, and maybe 10mm on the inside edge......

my 8.5 with 37mm offset rubbed on the inside edge under a full turning of the wheel..... My 8s wiht 30mm offset are just about right, however 8 with 35mm would be a little better......

I dont like tirerack or discount tire's wheels because all the ones in a decent price range are cheap quality and way too heavy... My friend from indy had a set of enkei wheels, those are known as really good wheels... he spent over a grand on the wheel/tire combo... 2 of the wheels cracked....

Not to mention they were cast and heavy as hell...... You gotta be SUPER careful about wheels and tires..... Dont cut corners......!!! If you gotta wait 2 years before you can drop 2 large on a set of wheels and tires, then so be it.....

Why most people get infiniti take off wheels..... Good quality, decently light and all that fun stuff... Thats the route id take with you, some nissan or inifniti take off wheels...... The 350Z touring 18in wheels are realyl nice, cheap, will fit on the car nicely and are just perfect for theQ.

[elwesso]

So... where do I look to find load rating specs? Sounds like this is important... I don't want to mess it up.

Youll see the tire size, and then a "code"..... so youll see 225-45-18 (my front tires) and then a 95Y.. Means they are Y speed rated, and have a load rating of 95... Many Z rated tires do not have load rating.s

to be completely honest, i dont feel bad about running SLIGHTLY lower load rating if you have to... 93,94 is about the max id go, SO LONG as your running a really really good quality tire... michelin, bridgestone, etc.

[Jeff Williams]

Nissan/Infiniti take-offs can be a great deal, but good looking ones are hard to come by. Wes is a little biased, since he has Nissan Track wheels.

I have aftermarket wheels on both my Q's and am very happy. The set of Konig Divas on Layla came from Discount Tire, and the ASA Revolutions on Lola came from TireRack. Of course, both were aquired through eBay, my preferred shopping place.

I suggest sticking with 8", so you can rotate freely.

18" x 8" with a 40 mm offset are what I have on Lola. I run 245/45/18, with a 95 load rating. They are a bit large for the car (the speedometer is off abut 5%). The ride is 200% better than the 245/40/18's I started with. (They were about 5% too small).

On Layla, I have 17" x 8" with the same 40 mm offset. I have 255/45/17, with a 99 load rating. I don't like these tires because they are directional, and are too noisy for my taste. The size seem just right. The speedometer is right on with a GPS system I borrowed. The tires are a little wide for the rims, but I have plenty of rim protection.

I am a little biased, since I have aftermarket wheels.

[Rex]

Given the best "shopping" options are ebay and other deals, rule of thumb should be 8" wide, can go a little wider/narrower if need be. And you want offsets in the mid 30's at least. I wish the 18x8's I have on the front were at least a 33 offset, instead of the 30 they are, 35 would be best.

Nis/Inf take off's do offer a good option, and I've been happy with the 3 sets of wheels I've picked up.

[G50 Q]

Hmmm

that's interesting... I just put the following on my G50 with little to no issues:

18x9 +10 front 225/4018x10 +10 rear 245/40

Obviously both the front and rear fenders were rolled, took about 10min per fender, and the rear camber was dialed in a bit.

The front could easily come out another 5-10mm if i had some way to adjust front camber... hopefully i will soon.

[Rex]

Hmmm

that's interesting... I just put the following on my G50 with little to no issues:

18x9 +10 front 225/4018x10 +10 rear 245/40

Obviously both the front and rear fenders were rolled, took about 10min per fender, and the rear camber was dialed in a bit.

The front could easily come out another 5-10mm if i had some way to adjust front camber... hopefully i will soon.

That's interesting ... I'd like to see pics. of both the fit/clearance and the rolling. Given those wheel widths/ tire sizes, those are "stretched" a bit, aren't they?

So, you're not experiencing any front rub, even on lock to lock or over bump/through deep dips?

[G50 Q]

That's interesting ... I'd like to see pics. of both the fit/clearance and the rolling. Given those wheel widths/ tire sizes, those are "stretched" a bit, aren't they?

So, you're not experiencing any front rub, even on lock to lock or over bump/through deep dips?

I'll try to take some pics tomorrow... my intake mani is off right now because i'm replacing hoses/injectors. But i think i can take some ok pics with it in the garage.

Yes, the tires are a bit stretched... front doesn't rub at all.... rear just a little, which i plan to fix soon with a bit more neg camber.

[Rex]

I'll try to take some pics tomorrow... my intake mani is off right now because i'm replacing hoses/injectors. But i think i can take some ok pics with it in the garage.

Yes, the tires are a bit stretched... front doesn't rub at all.... rear just a little, which i plan to fix soon with a bit more neg camber.

Looking forward to some pics, do you have a "ball park" idea how much additional clearance you got by rolling the fenders? And are you familiar with onetongarage?

EDIT: Sorry, it's one ton garage and here's 1 thread zerothread?id=74138

[G50 Q]

Looking forward to some pics, do you have a "ball park" idea how much additional clearance you got by rolling the fenders? And are you familiar with onetongarage?

ummm ballpark maybe 10-15mm maybe more for the rear.....

and yes I know both Van and Jay @ oneton

[q45VIP]

18x9 +5 off. 225/40 no fender work,-2.50 camber.18x10 -5 off.235/40fender work required,-3.75 camber.

[G50 Q]

18x9 +5 off. 225/40 no fender work,-2.50 camber.18x10 -5 off.235/40fender work required,-3.75 camber.

What all did you do to the rear fenders? Just a good roll?

[Rex]

Interesting thread ... I'd like to see more pics of the wider fitments.

[q45VIP]

What all did you do to the rear fenders? Just a good roll?

Cut, pull and weld. I probably could have roll and pull some but, I didnt want to run crazy amounts of neg.camber.PLus Im going to lower it more and need more clearence.

[G50 Q]

Cut, pull and weld. I probably could have roll and pull some but, I didnt want to run crazy amounts of neg.camber.PLus Im going to lower it more and need more clearence.

HA that's funny, my roomate was trying to convince me to do that to both my front and rear fenders... he has a welder and offer to do that part, however I'm not all about repainting 2 of my cars right now. However, I would need to run a spacer in the front and back for it to look right, either that or get some lower offset wheels....muhahaha

Anyways, I'm envious... that is going to look excellent when you are finished. <thumb up>

[Rex]

Cut, pull and weld. I probably could have roll and pull some but, I didnt want to run crazy amounts of neg.camber.PLus Im going to lower it more and need more clearence.

Yeah, that's a little more "work" than I want to do to my wheel wells . Interesting that you needed to do that much, but G 50 says he only rolled his ... unless I don't "understadn" the use of the term "rolled".

Looking to better understand what some of the wider fitment requirements are.

[G50 Q]

Yeah, that's a little more "work" than I want to do to my wheel wells . Interesting that you needed to do that much, but G 50 says he only rolled his ... unless I don't "understadn" the use of the term "rolled".

Looking to better understand what some of the wider fitment requirements are.

Well he has roughly 10mm LESS clearence than I do. So, my wheel/tire combo sits 10mm (again roughly) further in. Also, He could have probably gotten away with out all of that work if he was willing to run a good amount a camber. But he said he didn't want to do that.

By rolling i mean pushing the fender lip upwards so it is vertical intead of horizontal.

o and btw I was unable to take pics today... it was pouring outside and my garage flooded... so i was dealing with that when i got home

[Rex]

So by "rolling", you mean rolling the inside of the wheel well lip away from the wheel/tire and towards the outter fender. That's what I thought, and I'm just surprised that he would need to do that much for the extra (roughly) 10mm, but as he said, he's planning on more drop and wants less camber.

[silentfurymm]

Holy tire stretch batman!

Seriously thought, this is an interesting thread. I was unsure how easily stock G35 17X8 rims would fit, and it seems like the answer is very easy.

[Rex]

Holy tire stretch batman!

Seriously thought, this is an interesting thread. I was unsure how easily stock G35 17X8 rims would fit, and it seems like the answer is very easy.

I had a set of G35 coupe 7 spoke 17" (7.5F, 8R) and had just the slightest rub, from what I understand the G35 sedan wheels have a better offset.

Hope that helps.

[maxnix]

1.) I dont like tirerack or discount tire's wheels because all the ones in a decent price range are cheap quality and way too heavy...

2.) My friend from indy had a set of enkei wheels, those are known as really good wheels... he spent over a grand on the wheel/tire combo... 2 of the wheels cracked.....

1.) One gets what one pays for.

2.) Enkei makes some very good wheels in Japan (Y50 standard Sport model), and some really crappy ones in Thiland, Phillipines, etc.

[maxnix]

Cut, pull and weld. I probably could have roll and pull some but, I didnt want to run crazy amounts of neg.camber.

Great way to lose the superior Nissan double galvanization and encourage corrosion.

[q45VIP]

Great way to lose the superior Nissan double galvanization and encourage corrosion.

No need to worry about corrosion here in AZI got to worry about the damn heat

[Rex]

No need to worry about corrosion here in AZI got to worry about the damn heat

I was thinking the same thing, your car is black on black, right?

[Falkdesigns]

My Q is in the shop getting fender rolling as we speak (rear only). The front fenders are somewhat rolled to begin with compared to the rears completely horizontal lip, the fronts are angled up and should be easy to do yourself, but my front's clear as is.

I've rolled Honda fenders before, but like Brian said about the Nissan double galvanization, and the fact that the body metal is like 2x thicker, I rather leave it to the pros.

[Rex]

I agree, and I'd say my fronts are similar.

I'm looking to go 265/35 on the rear next time and have the Eibachs to put on as well. Wes, has 265/40's on the same wheels and gets very little rub, he thinks due to height mainly.

Good 18's are pricey, I don't want to think about what good 19's in thos ewidths run .