Cougar H225 inboard diesel conversion

[Ph@ntastic]

Dash looks amazing
And thanks on the underwater lighting info!

[nitro9]

Glad you liked the dash Dave.. cant wait to see what it looks like installed.. shiny carbon always looks great against red.

Nick at Carbon Weezel

[Scand]

Looks great, is it allowed to ask how much it cost?

Originally Posted by freddy21

Picked up the new dash and switch panel from Carbon Weezel today, they made an excellent job.

The old one that came with the boat had gone milky and was damaged. The new one is made of a special resin that does not go milky or yellow. It is also lacquered to give it a high gloss finish.

Well done, thanks lads.

[PerformanceDodge]

Originally Posted by Scand

Looks great, is it allowed to ask how much it cost?

PM sent

[PerformanceDodge]

Originally Posted by nitro9

Glad you liked the dash Dave.. cant wait to see what it looks like installed.. shiny carbon always looks great against red.

Nick at Carbon Weezel

Just sat the gauges in to see what it looked like, stunning

[nitro9]

Blimey.. that looks very nice.. we didnt realise both bits went into recesses and they fit and everything.. so good when a plan comes together!

Nick at Carbon Weezel

[PerformanceDodge]

Originally Posted by nitro9

Blimey.. that looks very nice.. we didnt realise both bits went into recesses and they fit and everything.. so good when a plan comes together!

Nick at Carbon Weezel

Just trying to think up a plan for the cabin door now

[PerformanceDodge]

Modified the inlet manifold and removed the servo controlled inlet flaps as they seize up in cars let alone being used in marine environment. They made very little difference to low end torque on the dyno and we believe they are more for reducing emissions for road cars. Also removed the EGR valve housing as it is now redundant. To the left is the origanal and to the right spare set modified.

[PerformanceDodge]

Painted and dressed the engine today ready for fitting. Launch day is getting closer

[Scand]

Very nice!

[PerformanceDodge]

Dash is now finished and the helm fitted. Found some really nice large LED’s to use as warning lights. There are four warning light, Raw water flow, Oil pressure, Charge warning and gearbox oil level.

Have been trying to find some trough hull fittings for the hydraulic steering without success, so made my own in the end from some 20mm stainless hex bolts turned down, bored, tapped and polished. Also welded up some ‘T’s to split to twin ram setup.

As usual I was limited by the boat design as to where they could be positioned

[littlenige]

Totally in awe of you guys who take on the technical stuff. I wouldn't have a clue.

[fishfeatures]

this is a fab thread, some great workmanship going on here, keep up the great work...

[PerformanceDodge]

I was advised as although I have a transom mounted water pickup, that I would still need to allow water from the leg pickup to flow through it, as it helps to cool the drive. I was also advised that the gearbox can still run quite hot, so it was worth spraying the top of the drive with the water that it scoops up. So I made a skin fitting to go through the transom overhang, directed on to the center of the drive.

I found that when I connected the fitting up to a hose, although it was directed to center of the drive it splashed on top of the drive but did not flow down the sides for maximum cooling effect, so I decided to try an experiment.

I cut a piece of perforated stainless to the shape of the top of the drive, I then removed the top cap bolts of the drive and drilled and tapped them M4, then secured the perforated plate to the top of the drive with 4 mm spacing.

The perforated flat plate acts as a baffle still allowing water to flow but slower and more evenly, and the water now run down the outside of the drive, hopefully improving cooling of the drive gearbox.

[Mark Wildey]

Is there not a danger that when your blasting around at speed that wind turbulance will cause the water stream to be blown away from the leg.

There should be a picture of a shower unit I had that covers the top of the leg and overcomes this issue.

[PerformanceDodge]

Originally Posted by Mark Wildey

Is there not a danger that when your blasting around at speed that wind turbulance will cause the water stream to be blown away from the leg.

There should be a picture of a shower unit I had that covers the top of the leg and overcomes this issue.

Gareth at Drivers had a similar setup to mine on his rib and according to him it worked well. I am expecting to have around 2 bar of water pressure at around 60 to 70 mph (if I can get up to that speed) which should give a good straight flow.

When I get it in the water I shall get someone to photograph it and see what the flow is like. Its fun to experiment and try new ideas.

[RR 880]

The Scorpion Bravo 3 problem!!! We were the first people to encounter that problem with the top cone over heating and breaking on our Scorpion, it was tracked back to the fact the exhaust wasn't going through the leg and cooling it, as with most Scorpion diesels the exhaust was a straight through one!! So the "shower" was suggested to keep it cooler.
It wasn't a problem on the Bravo 1 legs as they don't run as hot!!

[cossie69]

i must say that is some project boat you are doin there i didnt have a clue to what boat is was till i seen the pics of the respray omg its amazing iv never seen a boat like that before and your work is truly amazing it makes my little project look like a pile of sh*t lol well done and cant wait to read some more , good luck with it

[karelwisse]

Hello Dave,

VERY nice job you did!
Already done a testdrive? must be very fast, i think.
Did you run the engine with all modification shown above on the testbed of Simtek?

regards Karel
Have you also noted exhaust temps?

[daze]

Hows the boat coming on, any updates ?
Mark