Vista V258 cruising speed and RPM

SuzaFan · **Posted:** Sun Jun 10, 2012 1:56 pm

Hi,

I had the first ride in my recently bought Vista V258 2008.
There is Volvo 5.0 engine installed (270 hp) and I wonder what is the optimal cruising speed/RPM on this bought with this engine?
I was driving it on 3500 RPM and it was ca 27 mph.
Thanx

alanurt · **Posted:** Sun Jun 10, 2012 7:37 pm

That should be the sweet spot depending on load.

650Guy · **Joined:** Tue May 22, 2012 7:15 pm **Posts:** 47

Ok, I'm running around 4000 rpm and only getting 20 - 25 it's pending water conditions ??? What could be different

alanurt · **Posted:** Mon Jun 18, 2012 9:05 am

There are plenty of other factors, such as weight of the boat, HP, gearing and props. I don't know enough about your drivetrain to give you an answer.

ric · **Posted:** Mon Jun 18, 2012 9:23 am

The 5.8 @ 4000rpms should be 35mph unless you're hauling a few tons of load. 15x17 stock prop.

Paul I. · **Posted:** Mon Jun 18, 2012 3:12 pm

ric wrote:

The 5.8 @ 4000rpms should be 35mph unless you're hauling a few tons of load. 15x17 stock prop.

no... or at lest in the real world.

ric · **Posted:** Mon Jun 18, 2012 3:20 pm

Paul I. wrote:

ric wrote:

The 5.8 @ 4000rpms should be 35mph unless you're hauling a few tons of load. 15x17 stock prop.

no... or at lest in the real world.

That's per four winns. You callin' them a liar??

Paul I. · **Posted:** Mon Jun 18, 2012 3:32 pm

I have a V258 also, a 2007. At 3500RPMs, roughly, the boat will do 23-26MPH depending on how choppy it is. Also thats at 10GPH with a 1.9 to 2.2MPG fuel flow.

ric · **Posted:** Mon Jun 18, 2012 3:38 pm

Yeah they're a bit happy with their spec sheets. I know on my H180 it's pretty much 100% wrong.

Paul I. · **Posted:** Mon Jun 18, 2012 3:39 pm

ric wrote:

Paul I. wrote:

ric wrote:

The 5.8 @ 4000rpms should be 35mph unless you're hauling a few tons of load. 15x17 stock prop.

no... or at lest in the real world.

That's per four winns. You callin' them a liar??

Again, or at lest in the "real would." That like believing that every car in a showroom, with a MPG rating on it, is what you are going to get after you buy it. You could, but you won't.

Paul I. · **Posted:** Mon Jun 18, 2012 3:43 pm

ric wrote:

Yeah they're a bit happy with their spec sheets. I know on my H180 it's pretty much 100% wrong.

If there "pretty much 100% wrong " Than why the "That's per four winns. You callin' them a liar??"

UNLESS I am misunderstanding you!

ric · **Posted:** Mon Jun 18, 2012 3:59 pm

I was being sarcastic, it doesn't translate well over text

Paul I. · **Posted:** Mon Jun 18, 2012 4:04 pm

ric wrote:

I was being sarcastic, it doesn't translate well over text

OH!!!

ric · **Posted:** Mon Jun 18, 2012 4:09 pm

According to FW my H180 with a 3.0 and stock prop should do 36mph @ 4000rpms. With a 20mph tail wind, 50ft above sea level, trimmed perfect.. the best I can do at 4000rpms is exactly 30mph. I am running a Solas prop stock pitch that is 2mm bigger then factory so technically it should be spot on.

To be 6mph off spec with a perfectly running boat tells me one thing... prop slip with the cheap solas.

Or bad FW specs.

I'm thinking prop slip. I only get 2-3mph from 3500 to 4100. If I keep this boat I'm going to have to upgrade to a better prop. I'm 6-7mph slower per spec across the board.

SuzaFan · **Posted:** Mon Jun 18, 2012 5:32 pm

Paul I. wrote:

I have a V258 also, a 2007. At 3500RPMs, roughly, the boat will do 23-26MPH depending on how choppy it is. Also thats at 10GPH with a 1.9 to 2.2MPG fuel flow.

Also Volvo Penta 5.0 GXi duoprop?

www.iFourWinns.com

Vista V258 cruising speed and RPM

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