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SMILEYOSO
09-15-2010, 08:59 PM
i currently have 17"x7" wheels on my 92GT. i am trying to figure out what is the widest 17" wheel i can fit on the car. i dont mind rolling or cutting the fenders a lil, but would preffer not to.

KM
09-15-2010, 09:33 PM
Frankly, I wouldn't go larger than that. I had 17x7s on my car, had fitted a 17x8/8.5 and had rubbing issues in the front.

GTAsian
09-15-2010, 09:34 PM
17x8 +35 offset will get the fronts close to flush. You can probably go 17x8 +20 offset in the rear. Since you have a GT, the front fenders are more narrow (I have the same problem). I'm planning on rolling my fenders so I can go lower and also fit in a set of 16x8 +0 offset in the front. =]

SMILEYOSO
09-15-2010, 10:24 PM
on a wheel, how is offset measured? is it how much the wheel goes inward?

Waffles!
09-15-2010, 10:32 PM
Instead of rolling your GT fenders, you can also get a set of wide body (found on the GTS) fenders. They allow you more room in the front for a wider tire.The Captain put a pair on his 'vert and runs the same wheels on both his 'vert and All-trac.

As far as numbers go, I have no clue.

METDeath
09-16-2010, 12:40 AM
To elaborate, you can't really run a 17x8 well on a GT, you need to get some GTS front fenders, then you can run a 17x8+35 with 225/45/17s very easily. However, the rear fenders need to be rolled though.

Magnum
09-16-2010, 01:36 AM
I run 17x9+38mm 215/40R17 in the front and 17x9+17mm 215/40R17 in the back on my narrow body GT-FOUR with no rubbing. I never did any fender work in the front but a roll in the rear.

celicasilfee
09-16-2010, 04:41 AM
on a wheel, how is offset measured? is it how much the wheel goes inward?

Ask and you shall receive...

http://www.celicatech.com/gallery/files/1/9/6/6/post-2-1184063972.jpeg

The exact amount of offset desired varies for each car. On my Alltrac, I know a 17x9 +30 offset will be flush for front. In the rear, I have a 25mm spacer, effectively making the same rim a +5 offset (+30 offset- 25 from the spacer= +5), which also fits flush on the widebody fenders (needs a rolled fender). I could do +20 offset on the wheels, but they would poke from the fender slightly.

I did run a 17x8 +38 offset on my gt coupe as well, but also need rolled fenders & a 25mm spacer in the rear to keep them flush.

Hope this helps slightly...

SMILEYOSO
09-16-2010, 05:11 AM
Ask and you shall receive...

http://www.celicatech.com/gallery/files/1/9/6/6/post-2-1184063972.jpeg

The exact amount of offset desired varies for each car. On my Alltrac, I know a 17x9 +30 offset will be flush for front. In the rear, I have a 25mm spacer, effectively making the same rim a +5 offset (+30 offset- 25 from the spacer= +5), which also fits flush on the widebody fenders (needs a rolled fender). I could do +20 offset on the wheels, but they would poke from the fender slightly.

I did run a 17x8 +38 offset on my gt coupe as well, but also need rolled fenders & a 25mm spacer in the rear to keep them flush.

Hope this helps slightly...

awsome!! thanks. now i understand what an offset is.

SMILEYOSO
09-16-2010, 03:52 PM
i found out that www.ntb.com has a nice configurator that shows you how much offset you can have

The Captain
09-16-2010, 08:42 PM
I run 17x9+38mm 215/40R17 in the front and 17x9+17mm 215/40R17 in the back on my narrow body GT-FOUR with no rubbing. I never did any fender work in the front but a roll in the rear.
Just curious, why would you run a 215 tire on a rim designed for 245-255's ? Is the bead is stretched to the max? Why not just run a 7 inch rim with less wieght? Do you have a pic?

For me the whole point of wider rims is wider tires.

The widest tire on a narrow body is about 215. This dictates a 7 inch rim for proper tire fitment. You can't go wider with the narrow body front fenders. An 8 inch rim requires rear fender rolling and GTS fronts, if you run proper tire sizes.

Search and make your own decision. Check my "secret project" link for an example of the 8 inch rim/narrow body dilemma/solution.

:deadhorse:

GTAsian
09-17-2010, 03:10 AM
Different strokes for different folks? People are starting to go for the flush look nowadays. I too am guilty of following this trend. =X

The Captain
09-17-2010, 04:18 AM
Different strokes for different folks?

Exactly! I'm all for it.

Magnum
09-17-2010, 07:36 AM
I won't lie it is mostly for looks. When buying wheels for tires you will always get a larger contact patch with a wider wheel. Also the tire is more stable, and you don't get snap understeer or oversteer if the tires brake loose. You would be surprised how little of a stretch some 215's are on a 9" wheel.

KoreanJoey
09-17-2010, 08:06 AM
I'm an autocrosser... we cram as much tire as we can... Also helps in cars that run in stock classes that don't have any camber adjustment as it puts a nice roll to the carcass of the tire.

For example... 295/30R18 + 18x8 wheels.

GTAsian
09-17-2010, 08:23 PM
For example... 295/30R18 + 18x8 wheels.

dayumm...Im more of a stretched tire type of person. Since I don't race, and my car is NOWHERE as fast as I'd like to be, I've given up on the performance mods for now. and working on my exterior.

Magnum
09-17-2010, 08:59 PM
I'm an autocrosser... we cram as much tire as we can... Also helps in cars that run in stock classes that don't have any camber adjustment as it puts a nice roll to the carcass of the tire.

For example... 295/30R18 + 18x8 wheels.I was told by a local autocrosser that the widest possible tire is best but also to run the widests wheel for that tire to get the widest contact patch.

KoreanJoey
09-18-2010, 04:46 AM
True, BUT in stock class, you're required to keep your OEM wheel dimensions.