Quote:
Originally Posted by FishStretcher
So the drive ratio on my bravo 3 is on a sticker- and it is bleeding away at that. it makes me wonder if yours might be a 1:2.0 labelled as a 1:1.65?
BTW, I have a 1:2.20 on a 350 MAG MPI bravo 3 at 22" pitch both props on the counter rotating pair. It would seem that 26" pitch is ambitious for your setup.
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Bravo 1 drive ratio info here:
http://www.go-fast.com/sterndrive_gear_ratios.htm
It's a reduction gear ratio, so the higher the number, the lower the prop rpm compared to engine rpm. I think the diesels usually run the 1:1.36 ratio. I checked again and mine is a 1:1.50.
The Bravo 3 ratios are higher because the counter rotating props are more efficient even when turning a high pitch prop at a lower rpm.
Dave