Reply
 
Thread Tools Search this Thread
 
Old 01 January 2012, 15:17   #21
Member
 
chewy's Avatar
 
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
Quote:
Originally Posted by Nos4r2 View Post
DON'T let Chewy kiss you. He uses tongues.
No complaints though eh honey
__________________
chewy is offline   Reply With Quote
Old 01 January 2012, 15:21   #22
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,069
RIBase
Quote:
Originally Posted by hamster View Post
I run 4 x sr4's with f30's on the back which I can get around 25kts from with the correct prop and 2 people on board on flat water.

The f30 and f40 are the same engine and weigh in at 89kg. The f50 is 110kg. I wouldn't want the transom any lower at rest and I'd imagine that extra 20kg would make a lot of difference to the way it sits and handles.
If funds allows I'd go for a new f40. Not much less power but a lot less weight so probably just as quick as the 50.
I'm not sure I'd want more than 40 on the back having driven one a few years ago. I've never driven one with 50 on but it will chine walk a fair bit with a 30 at WOT when trimmed out and one person on board. Ease of a bit, trim in or put another person onboard sorts it but a 50 must be scary!

I'm amazed at how much more efficient the new fuel injection f30's are than than the old triple carb versions. The 40 can't be that much more thirsty as its the same engine just detuned a bit, presumably by electronics or restricting the exhaust.

Sent from my iPhone using Rib.net
50 is ok at WOT as long as you keep a fair bit of weight in the bow.
There's a bit of video here of my old SR4 with a 50hp Mariner 2 stroke on the back -at 01.16,2.00 and at 2.25 at WOT.

__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 01 January 2012, 15:23   #23
Member
 
Country: USA
Town: Maine
Make: Avon SR4
Length: 4m +
Join Date: Oct 2011
Posts: 8
I guess have it figured out....lol

I'm not much of a computer guy, so you'll have to excuse my ignorance. All this quick wit and fast typing tires me out...I'm pretty sure there were at least two posts and a video inbetween the 30 seconds it took for me to post the second reply.

I know when I've been beaten

I actually just looked at a F40 Yamaha...If I can get over the loss of the two stoke snap, this is a very good option. I have had outstanding luck with my carb'd F50s on a heavy work barge so I trust these motors.

Otherwise it's a 50 two stroke for me. Never thought of shipping one from over your way...wouldn't that be costly? I hope to find one here in the next few months
__________________
Captain Tim
Downeast Yacht Services
Penobscot, ME
www.downeastyacht.us
TugCaptain is offline   Reply With Quote
Old 01 January 2012, 15:24   #24
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,069
RIBase
Quote:
Originally Posted by chewy View Post
No complaints though eh honey


On second thoughts, no ta!
__________________
Need spares,consoles,consumables,hire,training or even a new boat?

Please click HERE and HERE and support our Trade Members.

Join up as a Trade member or Supporter HERE
Nos4r2 is offline   Reply With Quote
Old 01 January 2012, 15:48   #25
Member
 
Country: UK - England
Town: Royal Wootton Bassett
Length: 8m +
Engine: 250
Join Date: Jul 2008
Posts: 8,047
Here's a quick video that Nos took of me in my old SR4, the outboard was a Yamaha 40hp 2 stroke and it went like stink!

__________________
whisper is offline   Reply With Quote
Old 01 January 2012, 17:12   #26
Member
 
Country: USA
Town: Maine
Make: Avon SR4
Length: 4m +
Join Date: Oct 2011
Posts: 8
Nice video. Mine goes pretty good with the tired Johnson 40 on there now, so my expectations are pretty high. Finding this famed Yam 50 is going to be tough. There are a couple dealers still advertising leftovers, so that may be a good route if they are still available.

Searching around this site makes me want a bigger one! I'm always impressed with the seakeeping ability of this little boat, but the extra room of a 5.4 would sure be nice!!

Anyway, thanks for the help
__________________
Captain Tim
Downeast Yacht Services
Penobscot, ME
www.downeastyacht.us
TugCaptain is offline   Reply With Quote
Old 01 January 2012, 19:31   #27
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,893
Quote:
Originally Posted by chewy View Post
First day of the year I've already upset some one lol.
Start as you mean to go on, I always say...
__________________
.
willk is offline   Reply With Quote
Old 01 January 2012, 20:01   #28
Member
 
Nick Hearne's Avatar
 
Country: UK - England
Town: Bucks
Boat name: Blue & Ding Dong
Make: Ribeye,SR4 & Bombard
Length: 6m +
Engine: 115,50 & 15Hp Yams
Join Date: Feb 2004
Posts: 3,252
I have the yam 2st 50hp on my SR4 & it gose very well I do not suffer chime walking, but I do have Dolfins fitted which dose slow it down a bit.
__________________
Member of the Ribeye supporters club!!!
Member of Bombard 380 Aerotec club
Member of SR4 club
Nick Hearne is offline   Reply With Quote
Old 01 January 2012, 20:01   #29
Member
 
chewy's Avatar
 
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
Quote:
Originally Posted by willk View Post
Start as you mean to go on, I always say...
Yep
__________________
chewy 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 20:36.


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