Reply
 
Thread Tools Search this Thread
 
Old 08 September 2013, 06:54   #11
Member
 
Country: UK - England
Town: Bristol
Length: 5m +
Join Date: Mar 2006
Posts: 338
Quote:
Originally Posted by spartacus View Post
The Suzuki DF70-90hp share the same 4-stroke block and weighs in at 155kg for DF90.

Yamaha's new F70 is just 120kg and gets good reviews, but is expensive, and the F90 is 166kg.

Tohatsu TLDI range - 90hp at 143kg.

Mercury 80hp (4-stroke) is verging on obscene at 181kg or Optimax 90hp at 170kg.

Honda BF75-90hp are 163kg.

Or E-Tec 90hp is 145kg.
Thanks!

Looks like the answer may be no then!
__________________

__________________
David G is offline   Reply With Quote
Old 09 September 2013, 02:27   #12
Member
 
Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,556
Orville Are you considering re engining the boat just to sell her or for keeping?

replacing the enginine is a lot of expense and a bit of hassle to sell an old boat especially if its working.

If your keeping her get the F70 its a very powerful small and light engine little engine (we own one) and it takes a lot for me to say that cos I'm a died in the wool two stroke guy.
__________________

__________________
Here it comes again, I don't stand a chance
Soul possession, Got me in a trance
Pullin' me back to you - Deja Voodoo
Rogue Wave is offline   Reply With Quote
Old 09 September 2013, 08:32   #13
Member
 
Country: UK - England
Town: Bristol
Length: 5m +
Join Date: Mar 2006
Posts: 338
Quote:
Originally Posted by Rogue Wave View Post
Orville Are you considering re engining the boat just to sell her or for keeping?

replacing the enginine is a lot of expense and a bit of hassle to sell an old boat especially if its working.

If your keeping her get the F70 its a very powerful small and light engine little engine (we own one) and it takes a lot for me to say that cos I'm a died in the wool two stroke guy.
I would only be re-engining to keep.

Do you think the difference between a 1990 85Hp and a 2014 70Hp would be overtly noticable; would I always be disappointed and miss that 15Hp?

Did Suzuki measure the output at the prop in the early 1990s or was it at the powerhead?

Cheers,
__________________
David G is offline   Reply With Quote
Old 09 September 2013, 09:24   #14
Member
 
Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,556
In this instance no I don't think so
Why don't you come all the way down from Bristol to Southampton and have a go in our 5 metre with the yammie on board. It's not for sale so you can have a go without any worries.

Stu
__________________
Here it comes again, I don't stand a chance
Soul possession, Got me in a trance
Pullin' me back to you - Deja Voodoo
Rogue Wave is offline   Reply With Quote
Old 09 September 2013, 09:39   #15
Member
 
colcreate's Avatar
 
Country: UK - England
Town: Cheshire
Boat name: Gollione
Make: Avon Searider 5.4
Length: 5m +
Engine: 90hp
Join Date: Jun 2010
Posts: 347
RIBase
I found this on another thread, quite useful and saves looking up all the weights!


Click image for larger version

Name:	image-3932748475.jpg
Views:	200
Size:	266.3 KB
ID:	85221
__________________
colcreate is offline   Reply With Quote
Old 09 September 2013, 11:04   #16
Member
 
Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,556
could we make this a sticky please
__________________
Here it comes again, I don't stand a chance
Soul possession, Got me in a trance
Pullin' me back to you - Deja Voodoo
Rogue Wave is offline   Reply With Quote
Old 09 September 2013, 12:53   #17
Member
 
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,298
Quote:
Originally Posted by Orville View Post
Do you think the difference between a 1990 85Hp and a 2014 70Hp would be overtly noticable; would I always be disappointed and miss that 15Hp?
Depends what shape your old Soozook is in. If it's got good compression and in a decent state of tune, then the difference would be noticeable, but if it's had a lot of hard use and is now a bit tired, then the difference would diminish.
The Yam will be quieter, cleaner and more fuel efficient, but the Soozook will have better acceleration and top end if it's in good order.

Quote:
Originally Posted by Orville View Post
Did Suzuki measure the output at the prop in the early 1990s or was it at the powerhead?
Prop
__________________
Downhilldai is offline   Reply With Quote
Old 09 September 2013, 14:20   #18
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
Quote:
Originally Posted by Rogue Wave View Post
could we make this a sticky please
Stu, its only a partial list which probably doesn't really warrant a sticky, but I've added some tags to make it easier to search for.
__________________
Poly is offline   Reply With Quote
Old 09 September 2013, 16:54   #19
Member
 
TomKat's Avatar
 
Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
useful for spares? Suzuki 85hp outboard for sale | Argyll and Bute | Gumtree
__________________
TomKat is offline   Reply With Quote
Old 10 September 2013, 05:57   #20
Member
 
Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,556
Quote:
Originally Posted by Downhilldai View Post
Depends what shape your old Soozook is in. If it's got good compression and in a decent state of tune, then the difference would be noticeable, but if it's had a lot of hard use and is now a bit tired, then the difference would diminish.
The Yam will be quieter, cleaner and more fuel efficient, but the Soozook will have better acceleration and top end if it's in good order.


Prop
copy that on the power output Bras

but don't forget st me and |I hate 4 strokebut s but this f70 is really a stunning engine. we have it on a 5 metre rib with a 21 inch prop we started off with a 15 and so farthe engine is saying give me a bigger one. 38 knots so far swinging a 21 inch prop and our bottle went but there was loads left in th engine.

i'd stick it on the sr54 to try but its got complicated wiring ( anti theft etc, a bad point I think) which makes it not worth the effort

it only weighs 10 kilos more than the 70 betol

Sof far its only the F70 that has done it to me but I understand they are bring ing out lightweight 90

In fact its such a good engine I've been thinking of Having the hull breathed on by Llnley swann so we can get the max out of the engine


Regards to Daiana
__________________

__________________
Here it comes again, I don't stand a chance
Soul possession, Got me in a trance
Pullin' me back to you - Deja Voodoo
Rogue Wave is offline   Reply With Quote
Reply

Tags
engine weight, hp to weight ratios, list of weights

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 12:09.


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