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Old 06 December 2022, 09:38   #1
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Engine size

Hey Everyone,

This is my first post here. Thanks for any help given.

I've just brought a Whaly 435 and whilst its in transport I'm looking for an engine.

The guy that sold it to me recommended a 40hp 2 stroke .

Manufacturer states max 30HP......

Now, Id rather go for the 40 as it'll have tilt and trim which is a bit of a game changer for the work I do. However I have no idea as to what happens if I overpower the boat......

Bearing in mind that ' just dont give it full power' probably wont work as I wont be the only one driving it and some of the lads will definitely want to 'see what it can do' no matter what they're told.

Any advice very glady received

Boat will be fully loaded sometimes and single occupancy at others, inshore use only, conditions variable but usually pretty easy.
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Old 06 December 2022, 10:36   #2
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Check that your intended insurers would be happy with it.

It's a 'what could happen if someone gets it wrong' thing & as you've said that others who might be reckless will be driving it you might be laying yourself open to being sued.
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Old 06 December 2022, 10:45   #3
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Quote:
Originally Posted by Simon88 View Post
Hey Everyone,



This is my first post here. Thanks for any help given.



I've just brought a Whaly 435 and whilst its in transport I'm looking for an engine.



The guy that sold it to me recommended a 40hp 2 stroke .



Manufacturer states max 30HP......



Now, Id rather go for the 40 as it'll have tilt and trim which is a bit of a game changer for the work I do. However I have no idea as to what happens if I overpower the boat......



Bearing in mind that ' just dont give it full power' probably wont work as I wont be the only one driving it and some of the lads will definitely want to 'see what it can do' no matter what they're told.



Any advice very glady received



Boat will be fully loaded sometimes and single occupancy at others, inshore use only, conditions variable but usually pretty easy.


Donít just check the power, weight is a more important factor. Adding TnT will add weight. The last thing you want is a small stern heavy boat with 1 up.
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Old 06 December 2022, 16:18   #4
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So looking at the 40 2 stroke (remote control, tilt / trim) being approx 81kg.
A 30hp 4 stroke (manual lift and within the manufacturer's guidelines) is approx 97kg.

I'm tempted with the 40 as the tilt trim really makes a difference when going into rocky, coastal bays. The weights favor the 40.

Fully understand the insurance concept, and I'm not being dismissive, but we work in places where insurance isn't really a thing.....

Most of the work is actually at very low to medium-low speeds.

Its as much of a case as how would I expect the boat to react under too much power?
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Old 06 December 2022, 17:27   #5
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Quote:
Originally Posted by Simon88 View Post
Hey Everyone,

This is my first post here. Thanks for any help given.

I've just brought a Whaly 435 and whilst its in transport I'm looking for an engine.

The guy that sold it to me recommended a 40hp 2 stroke .

Manufacturer states max 30HP......

Now, Id rather go for the 40 as it'll have tilt and trim which is a bit of a game changer for the work I do. However I have no idea as to what happens if I overpower the boat......

Bearing in mind that ' just dont give it full power' probably wont work as I wont be the only one driving it and some of the lads will definitely want to 'see what it can do' no matter what they're told.

Any advice very glady received

Boat will be fully loaded sometimes and single occupancy at others, inshore use only, conditions variable but usually pretty easy.
Know nothing about these boats ,but had a look and just noticed reccomended on the r model at 29.5 KW which is of course 40 hp ,is this the modelyou have bought ? ,lots of google images with 40 ,s on
Appologies if i have missed something here !
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Old 06 December 2022, 18:24   #6
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I've got the standard model, no R's in stock.....
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Old 06 December 2022, 20:15   #7
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Whaly looks similar to Pioner boats, polyethylene build, etc.

Ultimately you can do what you want engine wise if this is for coastal waters, but if the specification says 30hp, then thatís the transom rating and insurance isnít going to deviate. Maybe not what you want to hear, but thatís my take on it unless you can get your hands on a 435R.
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Old 06 December 2022, 23:14   #8
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Bearing in mind that ' just dont give it full power' probably wont work as I wont be the only one driving it and some of the lads will definitely want to 'see what it can do' no matter what they're told
I've no experience whatsoever with the type of RIB or OBs your talking about, but that one sentance stood out to me as answering your question - JMO
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Old 07 December 2022, 07:33   #9
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Trim n tilt is available on a 30?
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Old 07 December 2022, 07:42   #10
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Go for it. You know you want too
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Old 07 December 2022, 13:56   #11
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Quote:
Originally Posted by Simon88 View Post
So looking at the 40 2 stroke (remote control, tilt / trim) being approx 81kg.
A 30hp 4 stroke (manual lift and within the manufacturer's guidelines) is approx 97kg.

I'm tempted with the 40 as the tilt trim really makes a difference when going into rocky, coastal bays. The weights favor the 40.

Fully understand the insurance concept, and I'm not being dismissive, but we work in places where insurance isn't really a thing.....

Most of the work is actually at very low to medium-low speeds.

Its as much of a case as how would I expect the boat to react under too much power?
that is a rather scary statement, what sort of work are you doing?
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