Reply
 
Thread Tools Search this Thread
 
Old 25 March 2010, 13:07   #61
Member
 
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
Quote:
Originally Posted by willk View Post
My rib make about 2-3kts with the engines just in gear - it can't be burning much gas at those revs. I think
But it's not going far either!
__________________
Downhilldai is offline   Reply With Quote
Old 25 March 2010, 20:29   #62
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,021
Quote:
Originally Posted by Ian M View Post
Definately the weakest aspect of Ospreys
Really mine are fine ! my last Osprey had 12 year old Europcraft tubes and they were fine too !
__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 25 March 2010, 20:35   #63
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,021
Quote:
Originally Posted by BogMonster View Post
One question for Etec owners, particularly Vipermax ones, what sort of fuel economy (litres per nm) do you get at displacement speed, steady cruising (20-25kt) and fairly near flat out? Just so I know what I am looking at - running costs are an issue.

Thanks
At "trolling" speeds the E-tec is extremely good on fuel running at about 1.2 litres per hour

At 6-7 knots I am seeing about 7 litres per hour

At 20knots about 18 litres per hour

At 30 knots about 30 litres per hour

At 40 knots about 48 litres per hour

At 44 knots about 55 litres per hour.
__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 26 March 2010, 01:13   #64
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,726
Quote:
Originally Posted by Chris View Post
At "trolling" speeds the E-tec is extremely good on fuel running at about 1.2 litres per hour

At 6-7 knots I am seeing about 7 litres per hour

At 20knots about 18 litres per hour

At 30 knots about 30 litres per hour

At 40 knots about 48 litres per hour

At 44 knots about 55 litres per hour.
Just what I needed to know, ta

A little more than I had hoped but the 20-30 knot bracket is not too bad - better than my old 2 stroke anyway though I suspect a Destroyer with a Zook 4 stroke would use less but then so might a 5.8 Vmax.

Still you gets what you pays for
__________________
A Boat is a hole in the water, surrounded by fibreglass, into which you throw money...

Sent from my Computer, using a keyboard and mouse
BogMonster is offline   Reply With Quote
Old 27 March 2010, 12:40   #65
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,021
Quote:
Originally Posted by BogMonster View Post
Just what I needed to know, ta

A little more than I had hoped but the 20-30 knot bracket is not too bad - better than my old 2 stroke anyway though I suspect a Destroyer with a Zook 4 stroke would use less but then so might a 5.8 Vmax.

Still you gets what you pays for
I would be suprised if you did not see quite an improvement over those figures with a 5.8 .
__________________
---------------------------------------------------
Chris Stevens

Born fiddler
Chris is offline   Reply With Quote
Old 27 March 2010, 21:00   #66
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,726
Yes I hope I might see a bit of an improvement.

Having thought about it a bit more, I think I am going to have to spend the extra and get the 150 just for the "yeeha" factor I reckon the extra ccs will be worth more in terms of torque and response than the 20hp difference would suggest and a 2.6L V6 producing 150hp has to be less stressed . Never even seen an Etec, so just guessing, it will be the first one here

I think what used to bog me off with the Johnson is that sometimes it seemed to use nearly as much fuel at idle as it did cruising.

The next six months is going to be such a long one, especially since we now seem to be getting a summer at last - a week after I sold the boat
__________________
A Boat is a hole in the water, surrounded by fibreglass, into which you throw money...

Sent from my Computer, using a keyboard and mouse
BogMonster is offline   Reply With Quote
Old 27 March 2010, 21:06   #67
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
Stephen, what's the 'crumpet' situation like in the Falklands? I can't imagine that the watefront is chocker with hot young choo choos waving as you go by in your new shiney Vipermax.
__________________
Mollers is offline   Reply With Quote
Old 27 March 2010, 23:46   #68
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,866
Quote:
Originally Posted by Mollers View Post
Stephen, what's the 'crumpet' situation like in the Falklands? I can't imagine that the watefront is chocker with hot young choo choos waving as you go by in your new shiney Vipermax.
I hear that they have even more attractive looking sheep than in Wales
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 28 March 2010, 00:01   #69
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,910
Huh! Where there's folks, there's chix
__________________
willk is offline   Reply With Quote
Old 28 March 2010, 02:26   #70
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,726
Quote:
Originally Posted by Mollers View Post
Stephen, what's the 'crumpet' situation like in the Falklands? I can't imagine that the watefront is chocker with hot young choo choos waving as you go by in your new shiney Vipermax.
No, not really sorry it is an entirely selfish purchase, just cos I want one

The Mrs wants something with a roof but all options are either too expensive or too boring ....
__________________
A Boat is a hole in the water, surrounded by fibreglass, into which you throw money...

Sent from my Computer, using a keyboard and mouse
BogMonster is offline   Reply With Quote
Reply


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




All times are GMT. The time now is 08:05.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.