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Old 01-14-2009, 11:47 PM   #1
pissonNOS
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can i get some tire assistance please (sizing)

ok im considering going to a set of 18's and im trying to figure out what size tire i would need to be compareable to what i have now, it could just be me but im having troubles trying to figure this out by looking at some size and spec sheets, I just used the ones from bf goodrich. Currently I am running 245-60-15's on the front which is 26.6 inches tall and 275-60-15's on the rear which is 28" tall can some one help me out here im kinda lost
Jason
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Old 01-15-2009, 12:28 AM   #2
SCOTI
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Re: can i get some tire assistance please (sizing)

245-45-18's = 26.68
295-45-18's = 28.45
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Old 01-15-2009, 08:19 AM   #3
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Re: can i get some tire assistance please (sizing)

I use this all the time. It put's a nice visual on the differences in tire size.

http://www.miata.net/garage/tirecalc.html
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Old 01-15-2009, 11:51 AM   #4
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Re: can i get some tire assistance please (sizing)

Quote:
Originally Posted by SCOTI View Post
245-45-18's = 26.68
295-45-18's = 28.45
x2

I was just looking at this info yesterday, doing some research.
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Old 01-15-2009, 01:12 PM   #5
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Re: can i get some tire assistance please (sizing)

Quote:
Originally Posted by pissonNOS View Post
ok im considering going to a set of 18's and im trying to figure out what size tire i would need to be compareable to what i have now, it could just be me but im having troubles trying to figure this out by looking at some size and spec sheets, I just used the ones from bf goodrich. Currently I am running 245-60-15's on the front which is 26.6 inches tall and 275-60-15's on the rear which is 28" tall can some one help me out here im kinda lost
Jason
Excellent post! I'm actually looking for the same information. I just got some Boss 338's and am looking for the best tire size on a 2.5\4 drop.

Quote:
Originally Posted by SCOTI View Post
245-45-18's = 26.68
295-45-18's = 28.45
Scoti what brand tire to you recommend. Not looking to send to much coin and the truck in not a DD but do want decent performance.

Thanks,
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Old 01-15-2009, 03:22 PM   #6
pissonNOS
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Re: can i get some tire assistance please (sizing)

thanks alot guys!! im assuming if i get the right back spacing i can still use this same set up with my airride
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Old 01-15-2009, 03:56 PM   #7
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Re: can i get some tire assistance please (sizing)

Quote:
Originally Posted by Eighty-6 View Post
Excellent post! I'm actually looking for the same information. I just got some Boss 338's and am looking for the best tire size on a 2.5\4 drop.



Scoti what brand tire to you recommend. Not looking to send to much coin and the truck in not a DD but do want decent performance.

Thanks,
You so have to post pics. I just found these the other day and I am so wanting a set with grey centers and knock offs.

What size did you get and are the offsets correct for 67-72 trucks?
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Old 01-15-2009, 04:44 PM   #8
ulakovic22
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Re: can i get some tire assistance please (sizing)

I actually get this question a lot from the guy I work with. Here is the formula for a given tire size of 275/60/15

((275/25.4)*.60*2+15)
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Old 01-15-2009, 04:47 PM   #9
SCOTI
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Re: can i get some tire assistance please (sizing)

Price wise the Falken line seems to offer many sizes @ a decent cost. For me personally, the only thing that matters is the size. I will pay more for the exact size I want vs. getting a cheaper tire that's not the right fit.

I have used & like: BFG's, Dunlop SP9000's, Toyos, Michelins, & Eagles.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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