Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 19-03-2012, 05:36   #1
Registered User

Join Date: Dec 2011
Location: nw austraila
Boat: fp bleize 43
Posts: 52
27 or 40 hp

hi all still chasing a belize 43 and would like to sail as much as possable but we have large tides 7+ meters ,and times of the year with no wind at all.
can any one with expearance tell me is having a 40 hp a benifit over a 27 hp in general.
i understand a little bit more fuel and a bit more weight ,but motor not working so hard run on one and extra power when needed or are the 27 hp enough any way.
spud
__________________

__________________
k9spud is offline   Reply With Quote
Old 19-03-2012, 06:12   #2
Ram
Registered User
 
Ram's Avatar

Cruisers Forum Supporter

Join Date: May 2005
Location: Cruising Greece
Boat: Cat in the med & Trawler in Florida
Posts: 2,298
Images: 27
Re: 27 or 40 hp

bigger is better-!!!!you may need that extra power someday!
__________________

__________________
Ram is offline   Reply With Quote
Old 19-03-2012, 09:23   #3
Registered User
 
Cotemar's Avatar

Join Date: Dec 2007
Boat: FP, Helia 44 Evo
Posts: 5,717
Re: 27 or 40 hp

Quote:
Originally Posted by Ram View Post
bigger is better-!!!!you may need that extra power someday!
bigger really is better.

Our boat came standard with VP20 hp and we purchased the VP 30 HP.
With the lower HP engines you have to run with both engines most of the time.
With the bigger engines you can fly on one engine, so you actually use less fuel and less hours.
__________________
Cotemar is offline   Reply With Quote
Old 19-03-2012, 09:39   #4
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: 27 or 40 hp

I believe they displace about 9000 kg.

It may be difficult to justify 80hp plant.

The general rule more=better holds, but at 2x27 you are at 6 hp / 1000 kg, which should be enough unless huge amounts of power are taken up by anything else but the screws.

b.
__________________
barnakiel is offline   Reply With Quote
Old 19-03-2012, 09:42   #5
Marine Service Provider

Join Date: Dec 2010
Location: Bristol RI
Boat: Cape George 31
Posts: 638
Re: 27 or 40 hp

I cruised a good deal on a Venezia--same mfg., similar size. 27hp was fine. Lots of power, and we never got to full throttle. When motoring through calms, one engine at 2700 RPM would do 5+ knots. You might want to consider that the 27hp is a tight-ish squeeze in the engine compartment; the 40 might be bigger, and thus harder to work around. Also more expensive, and more weight. In this case, I would say bigger is not better--27hp is more than enough power.
__________________
Benz is offline   Reply With Quote
Old 19-03-2012, 09:55   #6
Ram
Registered User
 
Ram's Avatar

Cruisers Forum Supporter

Join Date: May 2005
Location: Cruising Greece
Boat: Cat in the med & Trawler in Florida
Posts: 2,298
Images: 27
Re: 27 or 40 hp

Quote:
Originally Posted by Cotemar View Post
bigger really is better.

Our boat came standard with VP20 hp and we purchased the VP 30 HP.
With the lower HP engines you have to run with both engines most of the time.
With the bigger engines you can fly on one engine, so you actually use less fuel and less hours.
I also run one engine at a time to save on fuel & expenses -but sometimes motoring into a strong/wind sea with an opposing current both engines at 80-90++% & Iím only doing 2-3 knots, and wish I had a little more power- So if you have a choice go bigger- you will be thankful...at some point you did
__________________
Ram is offline   Reply With Quote
Old 19-03-2012, 15:11   #7
Registered User

Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
Posts: 3,432
Re: 27 or 40 hp

When I asked FP the same question, they told me that with the bigger engines I wouldn't go any faster, but I would burn more fuel. I'm sure trying to motor through a big headwind, the bigger engines would help (or simply stay moored if weather is bad).

The attraction to the bigger Yanmar is the saildrive oil can be changed from the top, the 27hp/SD20 has to be hauled to change the saildrive oil (but it is 80-90w oil).

One downside to the Yanmar SD40/50 saildrive is the cone clutch, many people have had problems. I have ~1800 hours on my SD20s and had no problems with the dog clutch.
__________________
DotDun is offline   Reply With Quote
Old 21-03-2012, 07:07   #8
Registered User

Join Date: Dec 2011
Location: nw austraila
Boat: fp bleize 43
Posts: 52
Re: 27 or 40 hp

good talk with yanmar to day seems a big difference in design use of motors as in 27/sd20 to be used in and out of moorings , light use and oil changes out of water. 39/sd50 made for conational use oil changes from inside engine bay as required also priced a little bit less than I expected also max power 1800 to 2200 cruise 2200 rpm on one motor sounds good I donít like revving hard
__________________

__________________
k9spud is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
New Guy Considering a Hunter 40 1986 - Looking for Advice SickBouy Meets & Greets 38 29-06-2012 07:03
Amel 54 or 55 Anyone Sail or Own One? videorov Monohull Sailboats 8 17-04-2012 15:40
Cat Wanted to Charter - Live Aboard and Learn to Sail BVI or Grenadines Eco Worrier Atlantic & the Caribbean 5 01-04-2012 05:45
52' Jefferson Monticello: to bid or not to bid? rickali Powered Boats 6 19-03-2012 15:59
Inverter & Charger - Combi or Standalone SV Sedna Electrical: Batteries, Generators & Solar 7 18-03-2012 14:59



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.