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-   -   Need Someone With Brains (https://www.offshoreonly.com/forums/drives-lower-units/181563-need-someone-brains.html)

fastlane40 03-07-2008 01:45 AM

Need Someone With Brains
 
If i mate a stock 1:5 bravo 1 top to a 1:27 shorty lower what will be the final ratio?

Xray50 03-07-2008 08:11 AM

1.38

Mr Gadgets 03-07-2008 09:41 AM

How many teeth on the lower gear set?
15/19 = 1.501
15/17 = 1.343
15/18 = 1.255

That is with 27/32 Upper gear set..

Hope that helps
Dick

fastlane40 03-07-2008 02:43 PM

Hi Dick.When i'm ready i will remember that lower we spoke about.
How many teeth are normally on a 1:27 shorty?
What is the ratio of a XR top?

JaayTeee 03-07-2008 05:14 PM


Originally Posted by fastlane40 (Post 2475513)
How many teeth are normally on a 1:27 shorty?
What is the ratio of a XR top?

A XR top is 16/19 tooth count. ( 1.1875:1)

a 1.25 lower is 17/18 ( 1.058:1)

1.1875 X 1.058 ="s 1.25

Mr Gadgets 03-08-2008 11:27 PM

Yeah.. like Jaaytee said..

Let me know.. Thanks!

eastsideoffshore 03-10-2008 03:58 PM

witch ratio has been the strongest ? and in witch rotation


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