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Top Speed?
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Author:  lindeman23 [ Mon Jul 12, 2010 8:30 am ]
Post subject:  Top Speed?
Whats your top speed on your boat. Include the motor and size of boat.

1997 FW Sundowner 205 W/ Volvo Penta 5.7 Fuel Injection, DUO Props.

Mine will do 48 MPH w/ 3 people. I'm just curiouse at what kind of speed everyone else is getting out of theres. Is 48 about normal? I just thought that it would go a little fast w/ the 5.7 and fuel injection.
Author:  Castaicpiper [ Mon Jul 12, 2010 1:19 pm ]
Post subject:  Re: Top Speed?
I have the same boat but 5.7 gs duo prop. best speed was 46 on the gps
Author:  lindeman23 [ Mon Jul 12, 2010 1:42 pm ]
Post subject:  Re: Top Speed?
Thats good to know, I just thought it was a bit slow with that big a motor.
Author:  DocG [ Mon Jul 12, 2010 5:04 pm ]
Post subject:  Re: Top Speed?
1997 FW Horizon 200 W/ Volvo Penta 5.7

150mph according to the gauge...

No wait, that's the temp gauge, sorry.. 8)
Author:  lindeman23 [ Tue Jul 13, 2010 7:28 am ]
Post subject:  Re: Top Speed?
I'm not sure that I would take my boat that fast even if it did go that fast. :)
Author:  M3eater [ Tue Jul 13, 2010 12:10 pm ]
Post subject:  Re: Top Speed?
Our 97 245 Sundowner had the 280hp Volvo (5.7) with the F6 props and would just tickle 50mph (gps) with the canvas down, two people, 1/2 tank of fuel, flat water and the best trim on the drive.
Author:  lindeman23 [ Tue Jul 13, 2010 2:22 pm ]
Post subject:  Re: Top Speed?
Thats quick for something that size, I'm still a little dissapointed I didn't hit the 50mph mark.
Author:  Technologic80 [ Fri Jul 23, 2010 2:26 pm ]
Post subject:  Re: Top Speed?
Man! You guys are all sooo lucky, you dont even know it!

My 255 Sundowner with the 5.7l (carbed) and a brand new prop only goes 34mph WOT :cry: :cry:

I tuned it up yesterday (cap/rotor/wires/plugs) so I havent had it out since... I doubt I will have picked up that much mph's though :(
Author:  Graham R [ Fri Jul 23, 2010 4:48 pm ]
Post subject:  Re: Top Speed?
My (or rather, our) 1999 225 with the 280 HP 5.7 GSi did 52 mph on the GPS ( once, with perfect conditions, glass like ocean).

Our 2004 245 with the 5,7 GXi 320 HP will do about 46-47 mph (GPS). It gets used a lot less than the earlier boat due to the c**p weather for the last 4 years, so it always has had a full tank of fuel and some chop to contend with.

No idea what our next boat will do; mentioned a 278 Vista with a 300 hp volvo D4 diesel to my wife the other day, she asked whether we needed something bigger than that; I was, shall we say, taken aback! Now, there's that brand new leftover 2006 378 (I think) with IPS drives still for sale in the UK at 2/3 the list price ; no, too big and still too expensive

Graham
Author:  Aquadisiac [ Sat Jul 24, 2010 11:56 am ]
Post subject:  Re: Top Speed?
2000 235 5.7 280hp, family of four full of fuel and gear 43mph on gps.
Author:  Goostoff [ Mon Aug 23, 2010 9:08 pm ]
Post subject:  Re: Top Speed?
1989 205 sundowner with thye 5.0 HO 200 HP I managed to get the gauge to read 45mph. Forgot to take the GPS with me, and that was my first time ever operating a boat in my life, so I have no idea if I could get any more out of it or not. BTW that was with 2 adult and 2 teens in the boat.
Author:  aussie_sundowner [ Mon Aug 30, 2010 5:09 pm ]
Post subject:  Re: Top Speed?
empty boat, flat water 260 HP Merc, factory prop ( 3 blade) 54mph @ 4600rom

fully loaded, around 46mph
Author:  Obie [ Wed Sep 01, 2010 2:14 pm ]
Post subject:  Re: Top Speed?
A 255 Sundowner with a 320 HP 5.7 L engine running F3 props I was able to reach 44 mph. Two persons, half fuel at an elevation of 3,600 ft. If I ever get the boat down to sea level I should be able to get to 45 or 46 mph.
Author:  Technologic80 [ Fri Sep 10, 2010 8:02 am ]
Post subject:  Re: Top Speed?
Obie wrote:
A 255 Sundowner with a 320 HP 5.7 L engine running F3 props I was able to reach 44 mph. Two persons, half fuel at an elevation of 3,600 ft. If I ever get the boat down to sea level I should be able to get to 45 or 46 mph.


Ok that brings my boats speed into perspective then!

I have a 270hp 5.7l engine and I can go 36 mph MAX, on a good day, wind behind me, no water in freshwater tank, 1/2 tank fuel, and going with the current.

Not to mention my boat is a 1991 too. (heavier? different hull design?)

I am re-propping from a 15.25" x 15p to a 15" x 17p. My WOT RPMS are in the middle of the range, so I figure if I lost 200 RPMS, I'd still be in the recommended range. And maybe I'd gain a little speed!
Author:  lindeman23 [ Fri Sep 10, 2010 10:47 am ]
Post subject:  Re: Top Speed?
Question: My boat is a 1997 w/ the fuel injected 5.7 liter. On the Website it says my motor has either 250 or 220 HP. How is it that your 91 has 270? Did you do upgrades?
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