Max OD tire?

[stdyhand]

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]

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]

im running a 275/60 with no mods. other then no quad shocks.

i do need to roll my lips though

 

[stdyhand]

im running a 275/60 with no mods. other then no quad shocks.

i do need to roll my lips though

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]

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]

Im running a 275/60R15 on mine, with no quads and fender lips rolled...The passenger side will scrub on hard bumps.

 

[1991notchbackLX]

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]

dry handjob

 

[srtthis]

275/60 hoosier radials

 

[srtthis]

 

[blackened88lx]

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

What he said. Thats really cool that you guys run 28s on your LXs but he was asking about a GT.

 

[SlammedGT]

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]

What he said. Thats really cool that you guys run 28s on your LXs but he was asking about a GT.

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