Volvo SX-M outdrive ratios

isleno1

Seaman Apprentice
Joined
Jul 29, 2011
Messages
30
Concerning the different ratios. Can anyone tell me why there are different ratios that are so close to each other rather than just a standard ratio significantly apart from each other?
Please don't misunderstand what I am asking, to be more accurate in what I'm asking I'll use an example with outboards.

Example;
There may be different size motors for horse power such as 135 h.p., 150 hp, 175 hp. Not a 1.79, 1.77, 1.89, 1.66.
Like there are in ratio for these drives. i know the reason for having different ratios available, I would have just expected them to be the same standard ratios. It almost seems like they build the gears with no standard or jigs or molds or however they are formed. Then they take the measurement of the finished product.

If anyone knows this, I would be interested in knowing...

Thanks
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Volvo SX-M outdrive ratios

Can anyone tell me why there are different ratios that are so close to each other rather than just a standard ratio significantly apart from each other?

Sorry, Volvo doesn't explain to people why they do things like that.
 
Top