Hope this helps...............
 

The stock wheels on our 94-95 gt cars (I own a 95 gt) are 17x8, with a tire size of 245/45r17.

On 18x9 f & 18x10r rims which are staggered, I would suggest these tire sizes:

F- 255/40r18
R- 295/35r18

I have a tire size calculator program on my computer, these would be a great match...here is comparison of stock size tires to the new tire sizes:


ST) Stock Tire - 245/45R17
R)) Rear Tire - 295/35R18
F)) Front Tire - 255/40R18

ST) Section Width: 9.64 in 245 mm
R)) Section Width: 11.61 in 295 mm
F)) Section Width: 10.03 in 255 mm

ST) Rim Diameter: 17 in 431.8 mm
R)) Rim Diameter: 18 in 457.2 mm
F)) Rim Diameter: 18 in 457.2 mm

ST) Rim Width Range: 7.5 - 9 in
R)) Rim Width Range: 10 - 11.5 in
F)) Rim Width Range: 8.5 - 10 in

ST) Overall Diameter: 25.68 in 652.27 mm
R)) Overall Diameter: 26.12 in 663.44 mm
F)) Overall Diameter: 26.03 in 661.16 mm

ST) Sidewall Height: 4.34 in 110.23 mm
R)) Sidewall Height: 4.06 in 103.12 mm
F)) Sidewall Height: 4.01 in 101.85 mm

ST) Radius: 12.84 in 326.13 mm
R)) Radius: 13.06 in 331.72 mm
F)) Radius: 13.01 in 330.45 mm

ST) Circumference: 80.67 in 2049.0 mm
R)) Circumference: 82.05 in 2084.0 mm
F)) Circumference: 81.77 in 2076.9 mm

ST) Revs per Mile: 809.9
R)) Revs per Mile: 796.3
F)) Revs per Mile: 799.0

Actual Speed:

ST) 60 mph 100 km/h
R)) 58.9 mph 98.3 km/h
F)) 59.1 mph 98.6 km/h

:tup

82 GT,
Very nice post, thats just the info I was looking for, I'm going to use those tire sizes. Thank you very much,

Josh

I would agree with those recommendations, especially the front. On a 94-98, anything wider than a 255 on the front is going to look too big, and end up throwing stones and crap on the front fender and door ... a buddy of mine ran in to that with 275/40/17 on 9" wheels all around on his 95.


cheers
Ed N.