walter v-drive ratio

todd brinkerhoff · Post by **todd brinkerhoff** » Mon May 28, 2012 6:21 pm

Anyone know if the reduction ratio is stamped somewhere on the v-drive? The manual says the gassers on the 10.8 express came with a 2.5 to 1 reduction at the drive, but the original shipping papers for my specific boat say that the gear was 1.7 to 1. Considering that it's turning a 22 x 22 wheel with a 1 1/2" shaft I'm more apt to believe the manual, but i wanted to verify. When i asked John Leed he thought it was 2.5 but he wasn't positive eirher.

aweimer · Post by **aweimer** » Mon May 28, 2012 10:59 pm

I have a walters manual, there are MANY models. Need that to start, then within that model you select gear ratios based on HP driving it.

My tri has RV-40 in it. Thats a 2.04:1, HP rating of 8, which means you take the top RPM/100 * 8 = MAX HP the drive can service.

Many options and ratio, don't see a 1.7:1 though on the charts but this is a 1975 chart too.

prowlersfish · Post by **prowlersfish** » Tue May 29, 2012 6:39 am

there should be a number on it . I would would be inclined to believe its 2.5 over 1.7 . you would not be able to turn those wheels with a 1.7

todd brinkerhoff · Post by **todd brinkerhoff** » Tue May 29, 2012 11:32 am

prowlersfish wrote:there should be a number on it . I would would be inclined to believe its 2.5 over 1.7 . you would not be able to turn those wheels with a 1.7

Thanks....Walter says there is suppose to be a brass plate with the serial number and gear ratio on the bow side of the drive, but I can't seem to find it. I'll keep looking.