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New Prop for Suzuki DT150 on 1988 22' Outrage
ecufan1995	#1  Posted on 07/11/20 - 11:46 AM
Member Posts: 5 Comments: 0 Joined: 07/11/20	I have an 1988 22 Outrage with a 2003 DT150. The motor is strong and still turn 5700 rpms but the prop is worn and been refurbished a few times. I can only read a single # which is 16 on the prop and I'm guessing that is the diameter. Does anyone have any experience with this boat/motor combination that could recommend a replacement Stainless Steel prop? Thanks, Tom (added full 4 digit year per guideline #1 at the top of this page) Edited by Joe Kriz on 07/11/20 - 1:28 PM
Phil T	#2  Posted on 07/11/20 - 1:46 PM
Administrator Personal Page Personal Album Project Albums Posts: 7043 Comments: 6 Joined: 03/26/05	-- - - - - - - EDIT --- Ignore this post, OP has different model so prop advice is not correct ---- - - -- - - -- What is the model # stamped on the inside of the prop hub. The current DF 150 has been redesigned so I did a bit of sleuthing on specs for your model. The 2008 ish Suzuki DF 150 has a gear ratio of 2.50:1 and a WOT range of 5,000-6,000. I am not 100% certain of the WOT speed given your model has a max hp rating of 240. With a target speed of 38, the prop calculator comes back with 18" of pitch. Given Suzuki's props come in odd increments I would go with a 15.50x17. Engine should be mounted at least 2 holes up, top bolt in the 3rd hole down from the top. https://suzuki.is/mc/2008/OB/DF175_DF...47-001.pdf Edited by Phil T on 07/13/20 - 8:57 AM 1992 Outrage 17 I 2019 E-TEC 90, Viper 17 2+ 2018 Load Rite Elite 18280096VT
ecufan1995	#3  Posted on 07/13/20 - 3:58 AM
Member Posts: 5 Comments: 0 Joined: 07/11/20	Thanks Phil. I'm going to put some cleaner on the numbers and see if I can read them and check the motor mount height. It's turning around 5750 rpms and tops out about 30 but as I said the prop isn't in great shape so I'm guessing I'm losing a few miles per hour but more importantly fuel economy.
biggiefl	#4  Posted on 07/13/20 - 7:48 AM
Member Posts: 890 Comments: 4 Joined: 05/08/06	You posted a DT150 correct? So a 2 stroke. In that case a 16" pitch would make sense. 24 Whalers so far....
Phil T	#5  Posted on 07/13/20 - 8:55 AM
Administrator Personal Page Personal Album Project Albums Posts: 7043 Comments: 6 Joined: 03/26/05	Biggie found my mistake. I mis-sread the model so my post is totally inaccurate. Thanks for the catch Nick! 1992 Outrage 17 I 2019 E-TEC 90, Viper 17 2+ 2018 Load Rite Elite 18280096VT
ecufan1995	#6  Posted on 07/14/20 - 3:57 AM
Member Posts: 5 Comments: 0 Joined: 07/11/20	Yes its a 2 Stroke DT150. The #16 was stamped on the outside of the proper on the front end and wasn't sure if that was the diameter or the pitch.
ecufan1995	#7  Posted on 07/14/20 - 6:03 AM
Member Posts: 5 Comments: 0 Joined: 07/11/20	I'm curious what your thoughts are on a 4 blade 17 pitch 14.3" Solas. How would you expect the motor to respond. As I said it's turning around 5700-5800 rpms with the current 16 pitch.
biggiefl	#8  Posted on 07/14/20 - 7:22 AM
Member Posts: 890 Comments: 4 Joined: 05/08/06	What is max rpms? 16 would be the pitch. If going to a 4 blade you would need to go down in pitch, not up. 24 Whalers so far....
ecufan1995	#9  Posted on 07/14/20 - 7:27 AM
Member Posts: 5 Comments: 0 Joined: 07/11/20	Max RPMs I am getting now is around 5750 but the spec says 5000-6000. So a 15 pitch and 14.5" diameter would be a better option? I'm assuming I would lose some top end but gain low end power right? Any ideas on the performance difference?