5.5m Alloy Wake Boat

Postby Dickj83 » Thu Jan 12, 2012 8:07 am

Just thought I'd post some photo's of my new boat.
It's a 5.5m aluminium wake boat running an LS1 with an Edelbrock Carby through a Velvet Drive 5000V V-drive box.
Still along way to go to get her finished but right now she is usable.
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Postby Bull32 » Thu Jan 12, 2012 8:35 am

nice mate great work welcome to the site, have a look at mach6 alloy boat he built its a nice boat too. cheers
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Postby MACH6 » Thu Jan 12, 2012 9:08 am

Looks awesome mate.

Did you put any ballast tanks in it?
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Postby WillyGilflite » Thu Jan 12, 2012 11:53 am

was that parked @ Punyelroo shacks over xmas?
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Postby wakepod » Thu Jan 12, 2012 12:06 pm

Welcome to the site, boat looks great! You like Mach6 must be very good with a welder! keep the updates coming 8)
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Postby Dickj83 » Thu Jan 12, 2012 1:22 pm

MACH6 -
No ballast tanks in it unfortunately. It needed over a cubic metre of buoyancy foam! But i kept the areas to each side of the engine free for board storage/ fatsacks/ walkways to transom. At the moment i am using five 80l water drums (two each side of the engine and one in the bow) for ballast and it is giving a huge but steep wake. Will post some photos when i get some.
Yours is a very nice boat mate. Would never have dreamt of putting a pickle fork on mine! Have you done anything to inhibit oxidation?

WillyGilflite -
Yep that was me. Mate's got a shack up there.

wakepod -
I cant weld to save myself! I got the guys at work to weld it together for me; I was given a bare hull. I designed it and did all the fitout myself though.
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Postby Hammer » Thu Jan 12, 2012 2:27 pm

Good excuse to put a 440ci in the val :wink:
wake boarding since 1985!
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Postby MACH6 » Thu Jan 12, 2012 3:11 pm

Dickj83 wrote:MACH6 -
No ballast tanks in it unfortunately. It needed over a cubic metre of buoyancy foam! But i kept the areas to each side of the engine free for board storage/ fatsacks/ walkways to transom. At the moment i am using five 80l water drums (two each side of the engine and one in the bow) for ballast and it is giving a huge but steep wake. Will post some photos when i get some.
Yours is a very nice boat mate. Would never have dreamt of putting a pickle fork on mine! Have you done anything to inhibit oxidation?

WillyGilflite -
Yep that was me. Mate's got a shack up there.

wakepod -
I cant weld to save myself! I got the guys at work to weld it together for me; I was given a bare hull. I designed it and did all the fitout myself though.



Yeah, bouncy foam takes up a lot of space. I only just managed to fit 1.3m2 in mine and we jammed it in every nook and cranny.

As for corrosion protection, I put Mastinox between every dissimilar metal to metal joint e.g. engine mounts, all SS hardware and attachment of filters etc. I also used it on all large dia bolts. For all the small SS screws & bolts that we used throughout the boat I used ACF50 which is a aviation grade corrosion inhibitor that works better than anything that I have seen. Both products are used extensively on aircraft and I have never seen corrosion appear where Mastinox is properly used.

I now use ACF50 religiously on the boat, every time I fit a bolt, screw, hose or pull something apart I will cane it with ACF50 every time. Just be careful with the Mastinox as it is essentially Barium chromate paste, which is carcinogenic. So use gloves, clean up any excess and don't eat it :)


ACF50 site
http://www.corrosionblock.com.au/Indexer.html

Mastinox (aka Duralac)
https://www.whitworths.com.au/main_item ... lutePage=1
http://www.bcf.com.au/online-store/prod ... escription
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Postby rad » Thu Jan 12, 2012 7:39 pm

we coated our ally plate boat with Duralac and it has worked great, so got to recomend it too.
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Postby No1Spcl » Thu Jan 12, 2012 8:32 pm

Ripper another build thread to follow. :D Well done.
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Postby fluffy » Thu Jan 12, 2012 8:42 pm

That looks excellent!! Keen to see more of it.

Post a video of how hard it goes with that engine :lol: :lol:
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Postby Dickj83 » Fri Jan 13, 2012 8:46 am

Yep i've duralaced everything. I was wondering more about anodes etc.
I've set mine up for salt water use with a heat exchanger and some anodes. So far so good.

I'll put up some photos of the build process asap.
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Postby MACH6 » Sun Jan 15, 2012 9:40 am

I bought a anode to stick on the transom but when it arrived it was a lot bigger than I thought it was going to be and I reckon it would be an eye sore. I have intentions of putting a prop shaft anode on but all the ones that I have seen are huge and look too big for the job. I am keeping an eye out for a little anode like the ones on outboards, I would glue it strait onto the transom. Something the size of a 50c piece would be good.

My old man reckons that it wont need one as it is built out of a good corrosion resistant alloy and I should be more worried about galvanic corrosion (dissimilar metal) as it is generally not in the water long enough to be susceptible to aqueous corrosion.

I will still put one on for my own piece of mind though.
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Postby rad » Sun Jan 15, 2012 6:43 pm

should grind the big anode down into a cool shape or something... could be interesting?

and you can get little block anodes from an outboard for a few bucks and they are about 20-25mm dia.
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Postby Dickj83 » Mon Jan 16, 2012 8:59 am

Dont know it you've got a whitworths up there but this is what i am using...

Shaft anode - https://www.whitworths.com.au/main_item ... lutePage=1

Hull anodes on transom - https://www.whitworths.com.au/main_item ... lutePage=1
These are actually rudder anodes but they are small and work well.

If you do put some on make sure you dont glue them as the glue will insulate the current flow between the two metals, thus making the anode pointless.
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Postby MACH6 » Mon Jan 16, 2012 4:56 pm

I have some electrically conductive adhesive that is used for bonding of electrical joints. If you bond it on, there will be a medium between the anode & aluminium hopefully preventing any corrosive attack on the hull.

Well that's the idea anyway, could fall off within a couple of days for all I know. :D

I don't like the idea of taping a hole in the boat for it but, I could just make a stand-off from the hull to bolt it on. I will see what I decide when the time comes to fit the suckers.

That rudder anode looks the gear, might get a couple I reckons. Still not impressed with the shaft anodes though. My old man cut one down to fit between the propeller and skeg on his boat, so that could also be an option.
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Re: 5.5m Alloy Wake Boat

Postby darth » Wed Jan 25, 2012 9:56 pm

Dickj83 wrote:Just thought I'd post some photo's of my new boat.
It's a 5.5m aluminium wake boat running an LS1 with an Edelbrock Carby through a Velvet Drive 5000V V-drive box.
Still along way to go to get her finished but right now she is usable.

About time you got it on the water. Saw it sitting there so many times when I have come to the workshop to pick up my gear from grant. Looks great and a credit to you and the Boys who put it together
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Re: 5.5m Alloy Wake Boat

Postby MACH6 » Thu Mar 08, 2012 7:38 am

Hows she fairing, going good?

Any more pics of the build or on the water?
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Re: 5.5m Alloy Wake Boat

Postby Dickj83 » Thu Mar 15, 2012 5:06 pm

Here's a few pics of the build etc.

I just put some turning fins on her last week and the difference is amazing. She sits flatter through the turns, more direct steering, doesnt wash off as much speed through long turns. I'm yet to tow someone with the fins but i'm hoping she will hold her line a bit better.

Hope to get a windscreen, stereo and bigger prop asap.

At the moment she is doing about 85km/h but gets there incredibly quickly so i need more pitch on the prop. I'm currently running an Acme 13.5x17.5. They only make one pitch size bigger, being the 19". Anyone know of another brand, same diameter (or smaller), more pitch? My main problem is i am running a 1.5:1 5000V gearbox.
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Re: 5.5m Alloy Wake Boat

Postby Dickj83 » Thu Mar 15, 2012 5:07 pm

A few more pics.
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