250 or 300hp Ribeye?

nimbusaviation · 07 February 2012, 08:08

Hi, excuse first ever post if this has been done to death - I am about to buy a Ribeye 785 with either the 250 or 300hp Yamaha. Does anyone have any experience or thoughts re performance, fuel flow, handling etc. Boat will be used for charter operations. Thank you

Poly · 07 February 2012, 08:13

I'd suggest you search for ribnet opinions and then make clear whether it is just the engines you want feedback on, otherwise could be bit of a bun fight.

Mollers · 07 February 2012, 08:33

Quote:

Originally Posted by nimbusaviation

I am about to buy a Ribeye 785...

Why???

You're within spitting distance of Ribcraft.

nimbusaviation · 07 February 2012, 08:45

Thanks, and Yes I guess I'm really just interested in which engine works best on a 785 - or is there in fact not much difference in the two?

Nick Hearne · 07 February 2012, 09:19

Quote:

Originally Posted by Mollers

Why???

You're within spitting distance of Ribcraft.

Then you can become a member of the leaking hatch club!

Mollers · 07 February 2012, 09:27

Quote:

Originally Posted by Nick Hearne

Then you can become a member of the leaking hatch club!

Rather than the fading tube club ?

bedajim · 07 February 2012, 09:30

Quote:

Originally Posted by nimbusaviation

Hi, excuse first ever post if this has been done to death - I am about to buy a Ribeye 785 with either the 250 or 300hp Yamaha. Does anyone have any experience or thoughts re performance, fuel flow, handling etc. Boat will be used for charter operations. Thank you

Have you test driven one? what egg whisk did it have fitted ?

You can never have to many horses

ppenman · 07 February 2012, 09:32

Hi,

I too have just ordered a Ribeye 785 (having had a couple of Ribcraft) but with the 300hp. It's basically a re-tuned 250 so weighs the same and shouldn't affect the handling too much. On part throttle which is what you'll probably use most of the time the fuel consumption should be similar.

What colour are you getting ? I've gone for the all grey.

Aries · 07 February 2012, 10:04

Umm....300hp. It's more.

nimbusaviation · 07 February 2012, 16:31

Test drove the 300 - v impressed - looking secondhand so considering a 250 as I've seen a few about. Wanted the confidence that the 250 is man enough!

Zippy · 07 February 2012, 17:29

I would guess 250 will be enough on a 8 meter rib!!

We had 225 (2 stroke) on a 7.5 meter and it was a good 48 Knot boat all day long. i have no experinence of the hull you are buying but i guess in real terms you are not really going to notice the difference in performance between the 250 and 300hp.

It maybe a bit more efficient but this is always a tough one because if your anything like me, the more horses you have the more you use them!!!

if you are loading the boat up with lots of people or weight then maybe the extra gg's will help but depends on your type of use!

nimbusaviation · 07 February 2012, 19:56

Thanks Zippy, appreciate you going to the trouble to reply, V useful!

Downhilldai · 07 February 2012, 20:00

Have you bought one now?

nimbusaviation · 07 February 2012, 20:14

Not yet - aim to do so in next few weeks

Mollers · 07 February 2012, 20:20

Quote:

Originally Posted by nimbusaviation

Thanks Zippy, appreciate you going to the trouble to reply, V useful!

There are only two reasons why a 250 would be preferable to a 300 if the hull is rated to 300hp, weight and cost. If they weigh the same, that only leaves cost. As for performance/economy, the 300 will obviously out perform the 250 in terms of acceleration and grunt, top end would be determined by propping. The 300 may possibly be more economical, as it wont be working as hard most of the time, or the difference between the two wouldn't be worth worrying about.

225hp/7m = 48knts is pretty meaningless. Which 225, which 7m? Every combination will give a different result.

Downhilldai · 07 February 2012, 20:29

As the OP is looking to buy second-hand, I'd suggest the buying decision includes more variables than just hp.

I thought the OP had already bought one, as his/her profile shows Ribeye 7m+/300Yam

HUMBER P4VWL · 07 February 2012, 20:31

Quote:

Originally Posted by Nick Hearne

Then you can become a member of the leaking hatch club!

Touché. On guard. ......

markb · 07 February 2012, 20:59

Quote:

Originally Posted by Downhilldai

As the OP is looking to buy second-hand, I'd suggest the buying decision includes more variables than just hp.

I thought the OP had already bought one, as his/her profile shows Ribeye 7m+/300Yam

It must be a fairly new one as he older ones were only supplied upto 250 hp
I had a 785 with 225 4st good for 50knts lightly laden but did chine walk at the top end

Bigmuz7 · 08 February 2012, 07:42

Quote:

Originally Posted by markb

It must be a fairly new one as he older ones were only supplied upto 250 hp
I had a 785 with 225 4st good for 50knts lightly laden but did chine walk at the top end

I did think it must be a heavy boat if the op wanted to put 300 on it for a 785 .... so if a 225 made that hull chine walk (if its the same hull just uprated) and its now got a 300 on it .. with paying punters in it/renting it

RRIBS · 08 February 2012, 11:50

300HP every time. PM me.