prop for Suzuki 140 on 1972 20'

strick · #1 12-12-2020, 10:03 AM

Nice tip thanks for posting...lots of us have 20's

strick

uncleboo · #2 12-14-2020, 08:03 AM

Hey Loon, what kind of top end are you getting?

loon · #3 12-18-2020, 02:17 PM

Haven't had a chance to play with WOT with the 4 blade yet. I did see cruise at 4000 go from 20 to 23.

loon · #4 12-21-2021, 06:29 PM

Albie season ended, so played a little with the new prop. With about 35gallons of fuel and just my 180#, I had 30 Kts on smooth water. I continue to think it is a little over propped; only had about 5600 rpm at wot. I only had it wot for maybe 10 secs as I am a bit skittish since I had a driveshaft break earlier this year (old prop). I replaced the lower unit but there is a bushing in the midsection that bought the farm.
Next season I may try a 14 x 18 4-blade.