another viper max convert

[Hightower]

Originally Posted by Downhilldai

There's one here:
http://forum.cornwall247.co.uk/viewt...4985b0790c7f94

and here:

Thanks Brad, just noticed this

[Top banana]

Originally Posted by Hightower

Looking good Steve, must be itching to get on the water.

Can you tell me something please. Where is the fuel takeoff/fill in relation to the inside of the console? Any pictures?

Hi Andy, The fuel filler is located on the port side, same as my car, to aid filling up. the take of inside the console is virtually in the centre, andthe fill,
breather, fuel take off and sender unit are raised off the deck by about 70mm
on a plinth, approx 450x300mm. this does make it quite a tight squeze but ive
managed to shoe horn 120 ah battery and 10 ltr oil tank inside, by cutting
the port side ducting level with the deck, as these are raised approx 120mm
off the deck, will try and post pics tomorrow. allso with having the front seat
the water seperating filter is inside the console and bolted through the seat.

[Hightower]

That's fantastic Steve, I would like to see the layout and look forward to seeing the pics.

I'm just trying to get a feel and an Idea of the tank position for my application and wondered if I could move My console further back on the deck than yours as the console I'm supplying has a slightly longer footprint at 800mm.

[Downhilldai]

On mine, the tank fittings are flush with the deck and located in the centre of the console, which is a PITA, as it's difficult to fit 2 batteries and a large oil tank around it all. I eventually decided on the Optima battery which packs a lot of power into a small box.
I specified longer below-deck ducting, to pass through a horizontal bulkhead with access hatch which I've fitted to isolate the batteries and oil tank. These ducts were originally glassed around at a 45 deg angle to the deck, which wouldn't work, so I had to cut off the GRP and re-fix them as shown. It all worked out ok in the end

[Hightower]

That Console from Osprey does look small inside, is the only access though that hatch in the front?

Luckily I'm blessed with the fact I have a much larger console than the one fitted by Osprey it's a 1100x800mm footprint, the Idea is to fit twin batteries and oil tank down one side with the center free to accomodate the fuel filter and tank fittings with the other side free to place toolkit and various other bits and bobs including a litre or two of emergancy dfi oil.

These will be fitted under a false floor and bulkhead walls that seperate the Batteries and fuel tank bits, kind of what you've done Brad.

[Top banana]

Pics of inside the console, note the raised tank feed area.

[Hightower]

What sized tanks have you got fitted Steve and Brad. As I understand it there are several sizes to choose from, 150l, 200l and 225l. Could this explain the raised area?

[Top banana]

mine is 150 ltr, i suppose one good thing about the raised area is that it gives
some protection to the through hull fittings, any body know the size of the
genuine optimax batteries, and ah, ive fitted a single 120ah battery which is
quite large. may be i could fit two smaller ones as long as they have the same
120 ah.

[bedajim]

Originally Posted by Top banana

mine is 150 ltr, i suppose one good thing about the raised area is that it gives
some protection to the through hull fittings, any body know the size of the
genuine optimax batteries, and ah, ive fitted a single 120ah battery which is
quite large. may be i could fit two smaller ones as long as they have the same
120 ah.

I,ve gone for a 200ah starter and a 180 ah house had the room so used it

[Hightower]

Originally Posted by bedajim

I,ve gone for a 200ah starter and a 180 ah house had the room so used it

Wow, that much more than I was thinking of.

I've already got a 120AH leisure battery and was going to compliment it with a smaller 85AH one.

Can anyone tell me if fibreglass is acid proof? Because I wasn't going for a battery box, was just going to contain them into a vented compartment.

[Hightower]

Originally Posted by Top banana

Pics of inside the console, note the raised tank feed area.

What fuel fill are you going to use? I was looking for something a bit special.

[Downhilldai]

My fuel tank is 200 litres.

The 150 Optimax requires 800CCA to spin it over. The Ah rating is an indication of how long the battery can provide a given amount of power for, rather than how it will deal with surges of energy, eg cranking over a large capacity motor. That is why leisure batteries have an Ah rating and starter batteries have CCA ratings. It is useful to know both ratings of a battery though. My Optima gives 810CCA, but only has a 50Ah capacity, so I decided to fit a second battery, just in case........

[Top banana]

Originally Posted by Hightower

What fuel fill are you going to use? I was looking for something a bit special.

going for a stainless steel filler from plastimo.unless something more exciting
turns up instead,
When is your hull ready,

[Top banana]

[QUOTE=Downhilldai;205578] My fuel tank is 200 litres.anindication of how long the battery c

The 150 Optimax requires 800CCA to spin it over.
Hi downhillda what size vipermax is the 150opti pushing.

[Downhilldai]

Originally Posted by Top banana

Hi downhillda what size vipermax is the 150opti pushing.

5.8 - basically the same as yours, but with single pods aft.
Will be interesting to see how they compare, as the 135 Opti is basically the same motor as the 150 (and the 175), just de-tuned a little.

[Hightower]

Originally Posted by Top banana

going for a stainless steel filler from plastimo.unless something more exciting
turns up instead,
When is your hull ready,

About 3 weeks.

I was meant to be going up last Friday to help find the position of the fuel tank relative to my console, but after I gave them the dimentions of the console they said that they'll fit the tank and glass in the deck before I go up. This means they're ready for me at the end of this week, however this week isn't good for me so early next week will have to do. I'll be taking up my trailer as well as the console.

I've just been informed by another 6.2m Vipermax owner on another thread that they had 53MPH with a 150 Etec and a 19" SS prop, so performance will be pretty good.

Can't wait till I see her

[Top banana]

Originally Posted by Hightower

About 3 weeks.

I
I've just been informed by another 6.2m Vipermax owner on another thread that they had 53MPH with a 150 Etec and a 19" SS prop, so performance will be pretty good.

Can't wait till I see her

Thats some going.bet you cant wait,are you going to take it to eurocraft to
have tubes fitted.
I should be ready for the water in about a weeks time cant wait to see the difference with the opti against the df140, ive got two props one 21p and a
19p so ill try them both out on the same day. Be interesting to see the
difference between downhilldai:S 150 and my 135

[Hightower]

Originally Posted by Top banana

Thats some going.bet you cant wait,are you going to take it to eurocraft to
have tubes fitted.

Osprey won't allow anyone other than Eurocraft to tube their RIBs now. Hugh Jardon was a special case as he bought his hull before a UK agent had been found.

So the 3 weeks should be fully tubed up

[Top banana]

Project now finnished, hopefully in time for some good weather, Next stop on the water, either this week or next week end, will have some pics of the event and some comments for all you osprey build guys. Just need to decide on a good combo plotter/ sounder.

[Hightower]

Good job Steve!

Where's the Sea trials taking place?