Try one of the on-line fitting guides. The main thing on the GT at least is to have enough offset for the brakes...
savagess said:looking at a set for rims
18x9 with a =+ 24 offset and a 6 in back space
or they have a 18x9 with +12 off set and 5 1/4 back space
will they fit
can anyone help i not to good with rims offset back spaceing
i thing the +24 and 6 in backspace will fit with little or no prob.. but
looking for in put...
A 18X9 rim with a +24 mm offset will put a 255/45/18 just inside the fenderwell with no rubbing issues....I know, thats exactly what I run for street use, 2003/04 cobra rims on 255's. For track, since I wanted to go with a wider tire, I went with a 18X9 with +42mm offset. Just depends on how much tire you want under the fenderwell....savagess said:looking at a set for rims
18x9 with a =+ 24 offset and a 6 in back space
or they have a 18x9 with +12 off set and 5 1/4 back space
will they fit
can anyone help i not to good with rims offset back spaceing
i thing the +24 and 6 in backspace will fit with little or no prob.. but
looking for in put...
psfracer said:A 18X9 rim with a +24 mm offset will put a 255/45/18 just inside the fenderwell with no rubbing issues....I know, thats exactly what I run for street use, 2003/04 cobra rims on 255's. For track, since I wanted to go with a wider tire, I went with a 18X9 with +42mm offset. Just depends on how much tire you want under the fenderwell....
psfracer said:Yes, I agree my post would be incorrect IF he was going to lower the car or runs chains. But he did not say that....which is why I said the 18X9 with +24mm offset would fit....which it does with 255/45/18's. Furthermore, I DO agree that this is the wrong offset if you want to maximize tire size. I just run them because I really like the 03/04 cobra wheel.
Have driven my car with this set up 31,000 miles in LA traffic, with absolutely no rubbing issues. Furthermore, have turned 12.60's at LACR with this set up. From the start, I said they will fit, AND I KNOW BECAUSE I ACTUALLY RUN THEM ON MY CAR---FIRST HAND EXPERIENCE. They do not rub. If they haven't rubbed in 31,000 miles, then they are not going to. And they DO NOT stick out with a 255/45/18. And lastly, you do not want to lower your car to screw up weight transfer at the track, unless you are prepared to do alot more than just lowering springs. Thats why I haven't lowered mine. I know what I am talking about, I 60' regularly in the 1.6's. What do you 60'? Oh, but your car may look better, so we have different priorities, and thats where are opinion differs. And as far as safety, I couldn't agree more, however. No one would argue you on that. If my tires ever rubbed, then I certainly wouldn't be running these wheels, especially when I am going close to 110mph in the 1/4 mile. Below is a pic of me running this set up at the track before my DR's. If they rub like you say, how do you explain the picture below?????All of those passes at the track, and no rubbing.SportsPix said:Hi psfracer,
My standards of performance, fit and finish are very high. Many people are perfectly willing to drive their nice new Mustangs looking like they are going off roading or to a rice fest.
IMO mods done to a performance car need to have a purpose, otherwise what's the point? A modification that makes the wheels stick out and rub when driving the car loaded through a dip is not a safe or good modification for ANY vehicle used on a public road IMO. If you like a particular style wheel find a set that will fit or modify the wheels to fit correctly.
Personally I don't want to be driving down the road and find myself in a traffic jam or worse made by some guy who cut his own tires and got in a wreck because he thought that looks were more important and that a little bit of rubbing was no big deal.
Seen it, don't like it. Actually you have probably ALL seen it and didn't recognize it for what it was. A huge, jacked up to the sky 4x4 up-side down because his CG was so high my 7 year old could push on it over. That slammed Civic in a solo spin out because he liked the lowered race car look but was too lazy, cheap and stupid to buy stiffer shocks, get an alignment and driving lessions. Hey don't get me wrong, I'm all for a little bit of fun but you have to admit some of this stuff is pretty stupid on the street.
But that's just me. Maybe you like this stuff happening all around you slowing you down and rasing your insurance rates. Personally I'd rather have the money to do other things with.
Cheers
psfracer said:Have driven my car with this set up 31,000 miles in LA traffic, with absolutely no rubbing issues. Furthermore, have turned 12.60's at LACR with this set up. From the start, I said they will fit, AND I KNOW BECAUSE I ACTUALLY RUN THEM ON MY CAR---FIRST HAND EXPERIENCE. They do not rub. If they haven't rubbed in 31,000 miles, then they are not going to. And they DO NOT stick out with a 255/45/18. And lastly, you do not want to lower your car to screw up weight transfer at the track, unless you are prepared to do alot more than just lowering springs. Thats why I haven't lowered mine. I know what I am talking about, I 60' regularly in the 1.6's. What do you 60'? Oh, but your car may look better, so we have different priorities, and thats where are opinion differs. And as far as safety, I couldn't agree more, however. No one would argue you on that. If my tires ever rubbed, then I certainly wouldn't be running these wheels, especially when I am going close to 110mph in the 1/4 mile. Below is a pic of me running this set up at the track before my DR's. If they rub like you say, how do you explain the picture below?????All of those passes at the track, and no rubbing.
Like I said before, if you want to get the largest tire possible under the car, then yes, you need more then 24mm of offset on a 9 inch wide rim, we are also in agreement there. When I run my DR's, since they are a wider and taller tire, I run a 9 inch rim with +42mm offset.