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Old 03-21-2021, 09:54 AM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
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Join Date: May 2004
Location: Calgary, AB, Canada
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I love the look on reproduction period correct white letter tires, but in years bygone I did ply with different sized BFG radial tires;
I believe that the actual radial size for our cars was 225/70r15 - (which I believe is an F-70-15);
I found that 235/60r15 was about perfect (and it should be, it's the reccomended size), but it also seemed a smidge small;
I went next to 255/60r15's and found that mounted on 15x7" wheels they would baloon and wear from the center of the tread out;
My opinion is the best modern radial size I found was 245/60r15, it's just a bit wider than the 235, it ever so slightly fills the wheel wells better than the 235, and there was no balooning effect.

I also like the same width and profile on 14x7" wheels.

__________________
1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)