Reply
 
Thread Tools Search this Thread
 
Old 11 November 2007, 05:37   #1
Member
 
Country: UK - England
Town: Truro-Cornwall & Brazil
Boat name: Bananas in Blue
Make: Humber Destroyer 5.5
Length: 5m +
Engine: E-Tec 115
Join Date: Jun 2007
Posts: 385
5 or 5.3???

I'm looking to buy a humber destroyer after xmas, Questions on my mind are...
Engine will be an Etec 90 on a 5m or 5.3m boat.
What sort of top speed should I be looking at for each length of boat?

I've also played with the idea of a 115 opti on a 5.3 but would the additional performance be useable (safely) on a 5.3m boat and would the fuel consumption/running costs be significantly more????

Some input would be great as I've been pondering the decision for ages and will be looking to snap up the next well priced engine of the above variety that I come across once I have the money from the boat I've just sold......

Mark
__________________

__________________
Markyboyo is offline   Reply With Quote
Old 11 November 2007, 07:00   #2
Member
 
Country: UK - England
Boat name: Seashell
Make: Redbay
Length: 7m +
Engine: Inboard diesel
Join Date: Jan 2004
Posts: 5,263
115 on a 5.3 will be fast but shouldn't be usage. I had a 115 on a 585 which did about 36 knots on a good day.
__________________

__________________
Tim M is offline   Reply With Quote
Old 11 November 2007, 07:43   #3
Member
 
Kernow Buoy's Avatar
 
Country: UK - England
Town: Cornwall
Length: no boat
Join Date: Oct 2004
Posts: 1,518
Hi Mark
as you see I've got a 5.3 with a 90hp, goes very well, top end is 40kts acceleration is excellent, pulls up a wakeboarder with ease, just a thought a 115 may be over the hull rating for a 5m? (mine is rated to 90)
Jeff
__________________
Kernow Buoy is offline   Reply With Quote
Old 11 November 2007, 10:16   #4
Member
 
Country: UK - England
Town: Warwickshire
Boat name: True Blue
Make: Humber ocean pro 6.3
Length: 6m +
Engine: Mercury 150 opti
Join Date: Oct 2005
Posts: 456
Hi Mark

I think you will find that the 5 & 5.3 are both rated to 90hp max and I think you will find a 90hp more than enough on both boats

Ian
__________________
Ian Sharlot is offline   Reply With Quote
Old 11 November 2007, 13:37   #5
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: 4,013
115

Mark, my Osprey is 5.25.

Its quite a wide hull with a fairly deep V, i had a 90HP on the back and got 36 knots out of it. I have now upgraded to a new 115 Etec and I get about 42 knots max swinging an 18" Raker Prop.

I would say go for the 115 option. One you are used to the 90 you will probaly feel the a litte bit more power would be nice.

Of course if your transom is only rated for 90hp then this is all irelevant !

Chris
__________________
Chris is offline   Reply With Quote
Old 11 November 2007, 16:09   #6
Member
 
Country: UK - England
Town: Essex
Boat name: Crooked Bow
Make: Zodiac Pro Open 550
Length: 5m +
Engine: Evinrude etec 115
Join Date: Jan 2007
Posts: 36
I agree with Chris - if your transom can take it then I would opt for the 115 as it will give you just a bit more top end when you need it! I have a 5.3M rib and with a 115 etec I am touching 40K with 2 crew.
__________________
Dave; Essex
Daveboy 71 is offline   Reply With Quote
Old 11 November 2007, 17:58   #7
Member
 
Country: UK - England
Town: bedford
Make: tornado
Length: 5m +
Engine: outboard 60hp merc
Join Date: Oct 2007
Posts: 210
Quote:
Originally Posted by Daveboy 71 View Post
I agree with Chris - if your transom can take it then I would opt for the 115 as it will give you just a bit more top end when you need it! I have a 5.3M rib and with a 115 etec I am touching 40K with 2 crew.
Hi. Just a thought, I bought my 5mtr Tornado with the view that firstly it would fit in a modern garage and secondly that it would be on an unbraked trailer, which makes life simple on the hub and hitch front.

I had the A frame made up so that it would also fit under (just) the garage door and by deflating the tubes a little it fits through the door without any problem. While my boat only has a 60 2 stroke on it is rated to a 90 max.

A 5.3 would have been been just to big although tempting.

Davej
__________________
davej is offline   Reply With Quote
Old 12 November 2007, 02:01   #8
Member
 
Country: UK - England
Town: Truro-Cornwall & Brazil
Boat name: Bananas in Blue
Make: Humber Destroyer 5.5
Length: 5m +
Engine: E-Tec 115
Join Date: Jun 2007
Posts: 385
I've had the most up to date iterature posted to me by Humber reagrding the destroyer and the 5m is rated to 100Hp and the 5.3 to 115Hp., they haven't published any weights tho.

I don't think finances will stretch to a 115etec tho I have seen plenty of very reasonable opti's availaible this season. How would the running/buying costs compare considering an 90etec to a 115 opti???
My head says 5m with a 90 and my heart 5.3 with 115! The braked/unbraked trailer question is also worth considering, I'm pretty much decided on a De Graaff and there is around £350's difference with or without brakes. According to humber the 5.3 only weighs around 35kgs more than the 5.0.......

Think the next step is a trip to humber to decide if a 5.0 would do what I want! I'm currently thinking along the lines of Navy toobs with matching strakes, raised bow locker, white hull, and deluxe console and single jocky seat in light grey. What you all reckon??!!
__________________
Markyboyo is offline   Reply With Quote
Old 12 November 2007, 03:01   #9
mdt
Member
 
Country: UK - Scotland
Town: fife
Make: Humber / searider
Length: 5m +
MMSI: ... - - - ...
Join Date: Sep 2005
Posts: 720
In all honesty I would go for the 5.3 there is going to be more useable space over the 5 I know it dose not sound much 30cm but it makes a difference.

Only you can comment on the choice of console as this is all down to how you are looking to use the craft… ie. If you are planning to take 3 mates out in a nasty chop then a single seat setup is no use.

The e-tec is a good engine however the deals on new Opti can’t be overlooked and if you are going new the 5 year warranty is a huge plus. And as a 90 and the 115 are the same kg go 115.

In summary go with your hart…. Your head will get over it.
__________________
“The only difference between men and boys, is the price and size of their toys”
mdt is offline   Reply With Quote
Old 12 November 2007, 07:07   #10
Member
 
Country: UK - Scotland
Town: Ardfern
Boat name: Moon Raker
Make: Humber Destroyer
Length: 5m +
Engine: Honda BF 90 D
MMSI: 235035994
Join Date: May 2006
Posts: 694
I think it's always best to get the biggest boat you can afford, you never regret the extra space - always the lack of it.

My Destroyer 5.3, Merc 90 4str., does 39 knts WOT at 5500rpm. I don't think I'd like to go much faster than that. Cruises happily at 3500, 23knts with quite a bit of kit aboard. Plenty of power in reserve if more people or kit come aboard. When I got the boat (2000) that was the heaviest/most powerful engine Humber would fit.
__________________

__________________
alystra is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:20.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.