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Old 13 September 2005, 09:09   #1
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Is this enough power?

Afternoon all!

I'm looking around for Galaxsea 3 at present.

I've just seen a Ribeye 785 with a Mercury 150 XL Optimax in the back.

Is this enough power to give a decent performance and a bit of fuel ecconomy on a longer run?

Any advice and guidance gratefully recieved!

Cheers
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Old 13 September 2005, 09:18   #2
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Quote:
Originally Posted by Phil Chitty
Afternoon all!

I'm looking around for Galaxsea 3 at present.

I've just seen a Ribeye 785 with a Mercury 150 XL Optimax in the back.

Is this enough power to give a decent performance and a bit of fuel ecconomy on a longer run?

Any advice and guidance gratefully recieved!

Cheers
Hi Phil

That is just about an 8 mtr rib and a 150HP motor is going to be the very very minimum you should even consider
Just think of my 750RS with the Verado 225HP , you will not get that kind of accelaration and top speed with the 150HP

I thought you wanted to go diesel
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Old 13 September 2005, 09:33   #3
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Ha ha

I had a feeling if you were on you'd try to keep working on me!

I thought it might be a little low on the power front.

Gliddon Marine are quoting 45 knots.
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Old 13 September 2005, 09:48   #4
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Quote:
Originally Posted by Phil Chitty
Ha ha

I had a feeling if you were on you'd try to keep working on me!

I thought it might be a little low on the power front.

Gliddon Marine are quoting 45 knots.
Did I say a Parker diesel

perhaps I was thinking of such

Pontoontalk are off to the SBS on Sunday . Are you going?
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Old 13 September 2005, 09:55   #5
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Quote:
Originally Posted by Phil Chitty
Ha ha

I had a feeling if you were on you'd try to keep working on me!

I thought it might be a little low on the power front.

Gliddon Marine are quoting 45 knots.

Thats presumably when going with a 10kt tide?!

An almost 8m RIB with a 50opti is going to do 35kts tops I'd say. For comparison my 6.5M DS21 did 40ish with 150 and my 7.8m Scorpion did 45kts tops with 200.
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Old 13 September 2005, 10:00   #6
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Quote:
Originally Posted by Andre
Did I say a Parker diesel

perhaps I was thinking of such

Pontoontalk are off to the SBS on Sunday . Are you going?

I'm still working on the house this weekend mate. I've lived in a house less than 10 minutes walk from my RIB for 6 weeks now and I've only used it twice!

That has to change!

I'm off to SBS on Monday with a few others.

Gonna get me a Gekko!

Cheers for the info Alan.
I thought it might be a bit underpowered for its size.
I've not seen a 785 with less than 200hp before.
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Old 13 September 2005, 11:39   #7
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Sounds a little underpowered to me. Engine could be thirsty as working hard.
I have an opti 225 and get to about 38Kts flat out... although she is a pretty solid boat.
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Old 13 September 2005, 11:45   #8
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Sounds a little underpowered to me. Engine could be thirsty as working hard.
I have an opti 225 and get to about 38Kts flat out... although she is a pretty solid boat.
What kinda hull matey? What revs do you pull at WOT with yer Opti?
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Old 13 September 2005, 12:01   #9
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I'd say 150 is well under powered. My hull is a tad shorter at 7.5m, but the 225 gives it fab performabce.

Having said that a cuople of similar boats I know have 200's and they're quick.

I would suggest on this rib 200 would be minimum for decent performance.
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Old 13 September 2005, 13:42   #10
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Notice you mentioned low on power front you would be better having the deisel instead of a 150 on that size boat i have new 150 2 stroke fict goes great but would with 785 rib
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