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Tire size vs gear ratio and rpm
http://www.ccfbg.com/forum/viewtopic.php?f=13&t=3178
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Author:  doublez [ Wed Jan 31, 2007 10:04 pm ]
Post subject:  Tire size vs gear ratio and rpm

I am changing gear ratio in my 74 away from the 4:11 especially for the Power Tour.
This link tells you your rpms at 65 mph or 104 km/h with a 1:1 high gear transmission. http://www.intercotire.com/site63.php
for all the overdrive peeps you could use this link to figure out your rpms
http://www.chevymania.com/tech/trans-ratios.htm

Author:  roughskinjrz [ Wed Jan 31, 2007 11:12 pm ]
Post subject: 

i was thinkin of going to 373 from the 410s as well...

Author:  doublez [ Wed Jan 31, 2007 11:27 pm ]
Post subject: 

roughskinjrz wrote:
i was thinkin of going to 373 from the 410s as well...

you are lucky cuz you got overdrive
I found this link that can figure out lower profile tires like most of you guys got

http://www.mustangii.org/tech/calculators/ just click on "rpms"

Author:  Mr Bastard [ Thu Feb 01, 2007 1:22 am ]
Post subject: 

im dropping lower then 373s and stuffing an overdrive in :)

Author:  Daz [ Thu Feb 01, 2007 8:36 am ]
Post subject: 

here's another site

www.4lo.com

Author:  doublez [ Thu Feb 01, 2007 7:15 pm ]
Post subject: 

Mr Bastard wrote:
im dropping lower then 373s and stuffing an overdrive in :)

I think I will go 3:42 for the power tour with a tall tire...at least its a stick

Author:  Mr Bastard [ Thu Feb 01, 2007 10:00 pm ]
Post subject: 

Daz wrote:
here's another site

www.4lo.com


no man im not lifting it and putting it on 44's :lol: :lol: :lol:

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