O.D. Tire sizes??
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From: Jeffersonville, VT USA
O.D. Tire sizes??
My C5 wheels came in today and now I'm tire shopping. From what I know the stock 91 16 Z28 tires are 26" OD. Will there be a noticeable difference if I get 25.0 or 26.2's??? I mean what size will make a diffence in speedo and odometer readings? Thanks for any info.
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From: East Tennessee
Car: 87 Trans Am
Engine: 350
Transmission: TKO 600
Axle/Gears: 3.73
The 25 inch diameter will make your speedo read a little faster. So if your speedo says your going 65mph your actual speed would be like 62 or 63 mph. The 26.2 would be almost perfect
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From: Sterling, ILL
Car: 3 3rd Gen F-bodies and 7 others
Engine: 305 CFI, 350 TPI & 3.8 Turbo V-6
Transmission: all automatics (stock)
Here are O.D's from Bridgestone Tire Data Book
P235/55R16 26.1
P245/50R16 25.6
Both these sizes were use on 91/92 Camaros either will work fine and be within a reasonable tolerance for speedo.
For a 17" these sizes will be in the right OD range:
P245/45R17 25.8
P255/40R17 25.2
P275/40R17 25.7
P255/45R17 26.1
P265/40R17 25.4
and if using 18's
P275/35R18 25.6
P285/35R18 25.9
P245/40R18 25.7
P255/40R18 26.2
Hope this info helps
P235/55R16 26.1
P245/50R16 25.6
Both these sizes were use on 91/92 Camaros either will work fine and be within a reasonable tolerance for speedo.
For a 17" these sizes will be in the right OD range:
P245/45R17 25.8
P255/40R17 25.2
P275/40R17 25.7
P255/45R17 26.1
P265/40R17 25.4
and if using 18's
P275/35R18 25.6
P285/35R18 25.9
P245/40R18 25.7
P255/40R18 26.2
Hope this info helps
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