airn

i searched for a while and didnt find what i need. i think the damm shop i bought my rims from sold me the wrong offsets. i just bought some coilovers and was looking at my car a relized that my rear tires will never clear even if i roll the fender lip. i looked at rhe tag on my wheels and none are in english. well my ?'s are what offsets do i need for a garenteed no rub without rolling my fenders? and how can youo figure out offsets is there some way to figur it out by measuring? thanks it sucks to pay three grand for wheels just to find out four months later they are the wrong fit.

loi

i run 37 front and 42 rear, not rubbing at all. using the jic flt a2 coilover. the car is very low i can't get a finder in between the tire and the fender. if the sticker still on the rim it will say what offset you got

Quivver

GT-N's are a pain with a FD, I was at 1st sold a 18x9 with the offset for a 18x8 upfront which ripped my fenders put and now volk is taking their sweet time getting the correct rims to me 18x8 with a 37offset, I like the looks of volks but I will never again deal with them, Funny how when I order my rims at first they get here in a week but when there is a probelm it takes 2 months

loi

i have no problem at all with volk, who order the rims for you? i think who ever ordered it has the wrong offset.volk will ship what their order, i don't think you can blam them. For the fd, 37 front and 42 rear. that's what i run and no rub what so ever. The normal shipping from volk's is 3 weeks, are you sure the rim you got are from them directly? sound to me someone has a set in stock, may not be the right offset and sold it to you anyway?

airn

i looked at my stickers and they arnt in english how can i figure out the offsets?

jr426

go to www.fikse.com. they have an offset chart, you may need to do some math. 1mm = .041in. I have gt-n rims on order should be here in a couple weeks. Remember to post a rim width when you state an offset. Do the tags on your rims have any numbers on them? If they do post them. Good luck!!

dclin

iTrader: (4)

On the sicker, you will see something like 18X9J +45 or 18X8 ET45 etc.

loi: What wheel widths? A 18X8 +37 will sit very differently then a 18X9 +37. You cannot give offset numbers w/o the wheel width.

And as for getting the fender lip pulled out, that has more to do with the overall diameter of the tire and how much the car is lowered, due to the fact the front wheel is not centered on the wheel well.

What size tires did you have on your 18X8 Quivver? (need to know the brand and model too, for exact dimensions)

loi

dclin, i think he said getting the correct offset for me on the 18x8? like i say i ran the above mentioned offset , and i have no rub at all. when you buying a wheel, you should have to go through all the crap to look for offset you self, who ever sold you the wheel they should know. i'll be **** too if i spend couple grand on the rims. good luck

dclin

iTrader: (4)

Not trying to pick on you. He did not specify a wheel width in his first post, and you just replied with offset numbers.

Just trying to prevent folks that are not aware of how offset/wheel width/etc works for getting the wrong idea, or getting confused.

18X8 +37 is a good offset, but the last mile when it comes to fit is choosing the right tire size. You can have the right offset, but the wrong choice in tire size will ruin everything.

Quivver was complaining that his fender lip was getting pulled out, and based on my experiences with my different wheels and tires - its the distance between the tire tread and the fender lip (which is determined by 1) the overall tire diameter and 2) how much a car is lowered).

Just as I have done, i think we forget to differentiate the different types of 'rubbing' there are. There is the kind where you bottom out and rub the top of the fender liner (tire too tall, or car too lowered), where the tire tread rubs the fender lip when the the suspension compresses (while going in a straight line - wheel too far offset outwards and/or tire too wide). There is the kind of rub where the inside face of the tire/wheel rubs the inside lining at different places (wheel to far offset inwards and/or tire too wide) and...

what appears to be a unique problem to FDs - pulling the fender lip outwards when turning and with the suspension under full load - suspension near or fully compressed

Based on what I have experienced, this last form of 'rub' is caused by the distance between the top of the tire tread and the fender edge - determined by the overall diameter of the tire and how much the car is lowered. Offset plays little part in this.

Turbonut

iTrader: (1)

To calculate the offset:
Find middle of rim. Measure from this point to back of mounting flange. Divide that number (inches) by .0394 to convert to mm.
Example 1" divided by .0394=25.4 mm offset

airn

i have 18x8 and 18x9

loi

i see, i'm learning also lol

dclin

iTrader: (4)

Does it have other numbers on the label? It should, take another look. Something like a +37 or ET37 etc. +37 is just an example, could be 18X8 +18, 24, 30, 31, 36, 43, 37, 42, or 49 according to the GTN offset chart. http://www.rayswheels.co.jp/cgi-bin/...?modelName=GTN

airn

the only thing on there that is english looks like a serial # or somthing it kinda a long #.

SleepR1

Good posts dclin...accurate, informative, and timely

SleepR1

Here's a nice link on offsets, diameters and widths for Volk GT-Ns.

http://www.upgrademotoring.com/wheels/gt-n.htm

Personally I like 9 x 18, 49-mm offset with 255/35-18 tires, and 10 x 18, 49-mm offset with 285/30-18 tires

You could also go 9 x 17, 50-mm offset with 255/40-17 tires all round.

Another 17-inch option is 10 x 17, 50-mm offset fronts, and 10 x 17, 44-mm offset rears. Obviously you won't be able to rotate front-to-back, or diagonnally, but you'll have same size tires/wheels all around with only a hint of additional understeer from the slightly wider track (0.5 inches total) in the back. Tire size will depend on the overall tire diameter. Kumho V700 and Hoosier R3S03s/A3S03s come in 275/40-17s with overall tire diameters of 25.3 inches. This will work very well, but most street tires in 275/40-17s are too tall at 25.7 inches, and will definitely rub up front. You'll need to go with 255/40-17s up front and 275/40-17s in back; or 255/40-17s fr/rr. The wides 255/40-17s are the Kumho V700s and Michelin Pilot Sport Competitions. Both are nearly 11 inches wide when mounted on 10-inch wide rims.

If you've 2.5-inch coilovers, then go with 10 x 18, 49-mm offset with 285/30-18 tires all around.

Someone post a pic of his/her car with the GT-Ns. They look cool. Don't know how light or heavy they are though...