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Old 01-15-2013, 09:31 AM   #85
Tx Firefighter
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Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
Re: The Hillbilly Deluxe dually build

Quote:
Originally Posted by Cheng View Post
I really enjoy following your work. It is great stuff, very similar to what i am trying to do, but i struggle on the cosmetic details.

I am using the below link to check engine rpm with different gear ratios or hoping i will find an NV4500 for a good price.

I find it easier than running the numbers by hand each time.

http://www.bgsoflex.com/rpmmph.html
Thank you for that link. I just ran the numbers and going from 4.56 to 4.10 will drop my revs by 300 at 60 miles per hour.
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