Does anyone know what size props are best for a suzuki DF140 4 stroke at the present I have a 14x17 3 blade and wanted to bump it up for more speed buy I don't want to over do it. Thanks, Andy
Does anyone know what size props are best for a suzuki DF140 4 stroke at the present I have a 14x17 3 blade and wanted to bump it up for more speed buy I don't want to over do it. Thanks, Andy
Bump up? Diameter? Pitch?
Going up in pitch or diameter doesnt mean more speed/performance normally.... It can reduce performance unless you are hitting the rev limiter.
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
Depends on your boat. I ran a 23P Raker on a 140 Suzuki, skiing dropped to a 21P
I have a DF140A with a 3x14x21. I can only get 5200 out of her. Been recommended to go to a 3x14x17 or 3x14x19. By going to a either will it affect my overall spped?
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P
You can actually gain speed dropping pitch if the motor makes more HP at higher rpms...
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
So if I understand correctly, dropping to a 19 should give me 200 more rpm's? 17 - 400 more from the 21 pitch?
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P
200ish rpms per inch pitch.. 21 down to 17 should give 800ish more rpms in the same exact prop. 19 should see 400ish more rpms.
Last edited by 21XDC; 05-03-2021 at 08:10 PM.
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
Ah, more better. Going to a 17 should get me closer to the upper limit at wot.
Thanks for the clarification
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P
Marks Props 317-398-9294, 1850 East 225 South, Shelbyville, Indiana 46176 propellerman59@gmail.com http://www.marksprops.com/index.html
will do
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P
Would you sell the 17. I’m running 15 on DF90 2562766592 message me
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P
Ya dropping down in pitch will bring your rpms up. What do you have for a boat/motor setup? I'm interested in your results as well. I currently have a javelin renegade 18dc with a Johnson/ Suzuki 115. I found my motor seems to like props with bigger diameter. Running a solas 21p at 5900rpm and getting about 44-45 mph by myself. I'm tempted to raise my motor and see if I can turn a 23p to gain some speed. Hope you get the results your looking for
I ran the 17P yesterday and way too much rpm's. I was at 6200 before I knew it. Had more throttle left but backed off when I hit 6200.
Exchanged the 17 for a 19. Let's see what happens
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P
Ran the 19P today. 5800rpm wot with 36mph. Kind of windy today so my 38mph should hold on a calm day. So good reference data when I finally decide on the right prop for my 22' Misty Harbor Tritoon. So not interested in hole shot, more interested in cruising speed and pulling grandkids on towables.
17P - 6200+ rpm (probably 6400 wot)
19P - 5800rpm
21P - 5200rpm.
So with this data it appears to jump 300rpm per inch of pitch. All 3 props were 3x14's
Last edited by Coach185; 05-25-2021 at 05:27 PM.
2003 Stratos 185, Yamaha V150LTRB, Tempest Plus 25P