The C-Brats Forum Index
HomeForumsMy TopicsCalendarEvent SignupsMemberlistOur C-DorysThe Brat MapPhotos

16 Cruiser Engine Possibility

 
Post new topic   Reply to topic    The C-Brats Forum Index -> Outboards and Systems
View previous topic :: View next topic  
Author Message
ContagiousYJ



Joined: 08 Jun 2022
Posts: 6
City/Region: Flaming Gorge
State or Province: UT
C-Dory Year: 2005
C-Dory Model: 16 Cruiser
Vessel Name: C-Pup
Photos: C-Pup
PostPosted: Mon Jun 27, 2022 7:13 pm    Post subject: 16 Cruiser Engine Possibility Reply with quote

Hey all - I have a 2005 16 Cruiser (love her like crazy) and am considering repowering with a Honda 60.
Here are my thoughts - please tell me if I'm crazy! Smile
    - The tag inside my boat states Max engine rating of 55hp
    - 97% of my boating is on lakes above 6,000' elevation
    - Generally, an engine loses 3% of its rated power for every 1,000 feet of altitude.
    - This means I am losing at least 18% of my engines rated power
Based on this information, does this mean that if I were to repower at 60hp, and considering the power loss due to altitude, I would be within the safety rating of the transom?
Technically, I'd be pushing just under 50hp at 6,000'
Weight difference with a 60 is negligible
Back to top
View user's profile Send private message Send e-mail
thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Mon Jun 27, 2022 10:04 pm    Post subject: Reply with quote

Should be no issues. You will run a different prop at the elevation of Flaming Gorge than at sea level. Generally 1" prop decrease per 1,000' after 3,000 feet, or 4" for Flaming Gorge..However since you are gong up in HP over the 40 that you may have now, probably half of the pitch would work best--or 2" reduction over what the boat would use as sea level prop.
_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
Back to top
View user's profile Send private message Send e-mail
ContagiousYJ



Joined: 08 Jun 2022
Posts: 6
City/Region: Flaming Gorge
State or Province: UT
C-Dory Year: 2005
C-Dory Model: 16 Cruiser
Vessel Name: C-Pup
Photos: C-Pup
PostPosted: Mon Jun 27, 2022 11:15 pm    Post subject: Reply with quote

Thank you, Bob - I have searched and read through enough posts in the forum to respect your knowledge and response!
I have not seen the pitch change numbers you listed above and find them to be very helpful!
From the Gorge to Yellowstone Lake, I tend to enjoy the higher elevations and think this approach will serve my little CD-16 well.
Back to top
View user's profile Send private message Send e-mail
T.R. Bauer



Joined: 17 Nov 2007
Posts: 1726
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
PostPosted: Tue Jun 28, 2022 2:08 am    Post subject: Re: 16 Cruiser Engine Possibility Reply with quote

I have confidence it will be just fine.
Back to top
View user's profile Send private message Send e-mail
ContagiousYJ



Joined: 08 Jun 2022
Posts: 6
City/Region: Flaming Gorge
State or Province: UT
C-Dory Year: 2005
C-Dory Model: 16 Cruiser
Vessel Name: C-Pup
Photos: C-Pup
PostPosted: Tue Jun 28, 2022 6:20 pm    Post subject: Reply with quote

Thank you - I think this approach will work out well!
_________________
K.C. Eldridge
C-Pup
2005 C-Dory 16 Cruiser (Jun. 2022 to Present)
2018 Super Air Nautique 210 (Aug. 2018 to Present)
1992 Bayliner 2452 Classic (Jul. 2012 to Present)
Home port: Manila, UT
Back to top
View user's profile Send private message Send e-mail
Safetythird



Joined: 23 Aug 2021
Posts: 45
City/Region: Hopkinton
State or Province: MA
PostPosted: Sun Jul 03, 2022 10:11 pm    Post subject: Reply with quote

Will your insurance still cover you if you have an accident while operating with a motor not rated for your vessel?
Back to top
View user's profile Send private message Send e-mail
T.R. Bauer



Joined: 17 Nov 2007
Posts: 1726
City/Region: Wasilla
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Vessel Name: C-Whisperer
PostPosted: Mon Jul 04, 2022 12:24 am    Post subject: Reply with quote

Safetythird wrote:
Will your insurance still cover you if you have an accident while operating with a motor not rated for your vessel?


My agent told me they are on the hook for just about everything unless you're smuggling drugs from Columbia and doing something else illegal when I asked about repowering with twin 60s. I suppose this could vary by state as insurance often does.
Back to top
View user's profile Send private message Send e-mail
ContagiousYJ



Joined: 08 Jun 2022
Posts: 6
City/Region: Flaming Gorge
State or Province: UT
C-Dory Year: 2005
C-Dory Model: 16 Cruiser
Vessel Name: C-Pup
Photos: C-Pup
PostPosted: Tue Jul 05, 2022 11:14 am    Post subject: Reply with quote

Definitely an interesting thing to consider - hadn't even thought of that!
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    The C-Brats Forum Index -> Outboards and Systems All times are GMT - 5 Hours
Page 1 of 1

 
     Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum



Page generation time: 0.0956s (PHP: 81% - SQL: 19%) - SQL queries: 27 - GZIP disabled - Debug on