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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Max OD tire?

  • Thread starter Thread starter stdyhand
  • Start date Start date Nov 28, 2011

stdyhand

Member
Nov 28, 2011
62
0
6
Missouri
Nov 28, 2011
#1
  • Nov 28, 2011
  • #1
Hi, can someone tell me what is the maximum diameter tire I can run on my 91 GT? I have read several things online that leads me to believe 26" is the largest but I've seen some running 27" but claim they had to modify the wheel well somehow.

I have a 5.0, 5 speed, with 410 gears. I am only running 24.5" tires right now which are 225 50r16 on pony rims. It is the size the car came with when I bought it. I know the originals were 225/55r16.

When I measure the wheel well from the ground up to the fender I comes to 26" which leads me to believe that is the max and as far as I know the car has never been lowered.

I would like a wider tire in the back for more traction, but I also want a thicker sidewall just to give it that slightly more aggressive stance in the rear.

The problem is most of the tires I look at with thicker sidewall look more like truck/SUV tires.

Which is better for performance and traction, a wider tire with less sidewall height or slimmer tire with more sidewall height?

Also, if I did modify the fender well what size tire could I fit in there then?
 

90lxcoupe

20+ Year Stangneter
Oct 7, 2003
3,596
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134
Nov 28, 2011
#2
  • Nov 28, 2011
  • #2
If you cut the ground effects, a 28 will fit.

If you hammer the wheelwells, and roll the fender lip a 10.5 wide tire will fit.

If you do both, you could run a 28x10.5 slick or a 275/60 drag radial
 

srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
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Nov 28, 2011
#3
  • Nov 28, 2011
  • #3
im running a 275/60 with no mods. other then no quad shocks.

i do need to roll my lips though
 

stdyhand

Member
Nov 28, 2011
62
0
6
Missouri
Nov 28, 2011
#4
  • Nov 28, 2011
  • #4
srtthis said:
im running a 275/60 with no mods. other then no quad shocks.

i do need to roll my lips though
Click to expand...
What size wheel are you using? I have the original 16" pony wheels so a tire that size would come out to 28.9". I wouldn't want to run a tire that wide on a 7" wide wheel but like to know it can be done.

After measuring the wheel well, I couldn't get a tire that size in there without the rear ground effects rubbing. How did you get around this?
 

srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
5,129
1,666
204
Maryland
Nov 28, 2011
#5
  • Nov 28, 2011
  • #5
mines an LX... and its a 28" tire on a 15x7 rim. i will get pictures of it tonight when i get home if its still light out.
 

FordRacing302

5 Year Member
Oct 1, 2005
384
42
59
Cleveland, TN
Nov 28, 2011
#6
  • Nov 28, 2011
  • #6
Im running a 275/60R15 on mine, with no quads and fender lips rolled...The passenger side will scrub on hard bumps.


 

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1991notchbackLX

Active Member
Dec 25, 2007
1,483
47
48
New York
Nov 28, 2011
#7
  • Nov 28, 2011
  • #7
Back half. I have nothing to add to this thread except that I had a 335 on the back of my 99 and it rubbed like a dry handjob.
 

bentley429isBAC

10 Year Member
Jul 23, 2009
922
188
84
CT
Nov 28, 2011
#8
  • Nov 28, 2011
  • #8
dry handjob
 

srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
5,129
1,666
204
Maryland
Dec 1, 2011
#9
  • Dec 1, 2011
  • #9

275/60 hoosier radials
 

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srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
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Dec 2, 2011
#10
  • Dec 2, 2011
  • #10
 

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blackened88lx

Active Member
Aug 9, 2006
0
4
28
Connecticut
Dec 4, 2011
#11
  • Dec 4, 2011
  • #11
90lxcoupe said:
If you cut the ground effects, a 28 will fit.

If you hammer the wheelwells, and roll the fender lip a 10.5 wide tire will fit.

If you do both, you could run a 28x10.5 slick or a 275/60 drag radial
Click to expand...
What he said. Thats really cool that you guys run 28s on your LXs but he was asking about a GT.
 

SlammedGT

Active Member
Oct 15, 2004
581
9
29
Peotone, IL.
Dec 5, 2011
#12
  • Dec 5, 2011
  • #12
You dont measure from the ground to the wheel well... You measure from the center hub to the wheel well and times that by 2
 

srtthis

the guy doing it does every local racers rear end
15 Year Member
Jul 3, 2009
5,129
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204
Maryland
Dec 5, 2011
#13
  • Dec 5, 2011
  • #13
blackened88lx said:
What he said. Thats really cool that you guys run 28s on your LXs but he was asking about a GT.
Click to expand...
thats not just for him...maybe down the road when some on searches they will find that and see hey look i can put 28's on an LX with out cutting anything
 
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