Bluefin Wrangler 475 - engine upgrade
Submitted by Justleft on Mon, 2014-08-04 07:12
Hi - I currently own a Bluefin Wrangler 475 which is rated to an 80 hp. I purchased it new in 2009 with a 60 hp yammie. The boat really feels it when loaded up and travelling against a big tide or river flow. Now I am considering putting a 80 hp motor on the back . I am a bit hesitant as it is costly and I am unsure how much more available power I will have. For the money I could most likely buy a really good second hand boat that will suit my needs better if I sell my current set up.
Does anyone own a Bluefin 475 with an 80 hp 4 stroke? It would be great to know what speeds etc. people are getting, I would like to cruise at around 50 km at under 5000rpm.
Thanks
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MandurahMatt
Posts: 613
Date Joined: 18/09/13
Are you running a stock prop?
Are you running a stock prop? If so a good quality stainless prop with a pitch change could make a big difference. A hydro foil could help too, they don't give you any more top speed but it will help lift the boat onto a plane easier. Just Propelers are the guys to talk to about it.
Bewdey Fellaz
Justleft
Posts: 4
Date Joined: 03/08/14
I am running a stock prop
I am running a stock prop with a pitch up from what was supplied. I installed a hydrofoil which made a big difference. But it still is a bit slow when loaded. We do some lengthy trips down river up here and the 60 seems to be on or near WOT mostly. I would rather back off to 4800-5000rpm and be cruising at 48-50km
thesupervisor
Posts: 1136
Date Joined: 10/06/09
yeah a nice 4 blade solas
yeah a nice 4 blade solas from just props in osborne park will make a huge difference
getting the bottom line final answer from a bunch of blokes that use false names and put smiley faces at the end of paragraphs is not the best place in the world to get the information you seek.
Jason P
Posts: 521
Date Joined: 16/02/13
Prop change will make a
Prop change will make a slight difference, hydrofoil would change the stability, but think that to get 50kph at less th an 5000 rpm more horsepower would be required. My 5.1m quintrex running a 100hp yamaha tops out at 60kph @ 5300 if that helps.
DM306
carnarvonite
Posts: 8669
Date Joined: 24/07/07
Insurance
If you have a stuff up and the insurance finds that you are over the makers recommended horsepower, forget about getting anything out of them, you are on your own.
Shark1
Posts: 1086
Date Joined: 21/05/12
I d be looking at selling
I d be looking at selling rig and replacing if u can get a good price
Justleft
Posts: 4
Date Joined: 03/08/14
carnavonite - the hull is
carnavonite - the hull is rated to an 80 hp which is all I am willing to go to. am just questioning wether putting the max rated hp on this hull will make a difference. Just hoping someone has this configuration or at least knows someone who can comment.
Justleft
Posts: 4
Date Joined: 03/08/14
Shark 1 - yeah I am thinking
Shark 1 - yeah I am thinking the same as I also want a really good trailer for some of the roads up here. I have a GS marine hull that has a 90 and a really well built trailer for about $10-12 k difference pending on what I would get. for me to upgrade to new motor and trailer is around $21k less what I get for the 60 and trailer. There is not much difference at the end result but selling a motor and trailer may prove more difficult and I would really like to upsize the hull if possible.
damo6230
Posts: 2029
Date Joined: 07/06/08
GS Marine
Good hull for rivers and flat water
not much of a bluewater boat if there is any chop....
depends on your intended use though