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12-06-2004, 07:46 PM
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#1
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hello
Join Date: Mar 2004
Posts: 2,739
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Good RPM from a standard 2.4 200
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12-06-2004, 07:51 PM
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#2
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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thats really good rpm
whats been done to the engine?
what was the water conditions like? millpond, rough, etc
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12-06-2004, 08:04 PM
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#3
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Nice
Thats good rpm, but it's not a standard 2.4 is it?
What speed did you make at those revs?
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12-06-2004, 08:14 PM
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#4
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hello
Join Date: Mar 2004
Posts: 2,739
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Quote:
Originally posted by Burty
thats really good rpm
whats been done to the engine?
what was the water conditions like? millpond, rough, etc
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Standard motor, 1.87:1 box. It was using my 26 chop, you know, the one you could only spin to 6300. It was well rough at weston but I manged to find a flat bit. Didnt GPS it but I reckon it was somewhere on the fast side of 110mph. Not bad for a P20 
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12-06-2004, 08:27 PM
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#5
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Senior Member
Country: ingland
Location: rinng faktery
Occupation: lanimayter
Boat name: rinng peas
Join Date: Mar 2004
Location: rinng faktery
Posts: 453
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Quote:
Originally posted by Johnny Boat Dude
It was well rough at weston
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ann sow arr de wimmin mi sun . i rekkon wan ov dems shaggid yorr brayns owt dood
gArf
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luk arfter nummber wan. downt stepp inn nummber too
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12-06-2004, 08:31 PM
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#6
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hello
Join Date: Mar 2004
Posts: 2,739
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If you dont believe me just look at how white my knuckles are in the photo 
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12-06-2004, 08:37 PM
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#7
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Cool speed
I wonder how long those standard rods will hold up or are you using bridgeport rods?
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12-06-2004, 08:42 PM
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#8
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hello
Join Date: Mar 2004
Posts: 2,739
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They're the big 5250 rods in that motor anyway same as a bridgeport they just dont have the SPS bolts that the hipo motors use.
I supose the motor isn't completely standard, it has an XR2 airbox!!! 
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12-06-2004, 08:53 PM
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#9
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Wow
I wan't an xr2 airbox!!!
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12-06-2004, 11:38 PM
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#10
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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It's so easy to confuse mph with kph, don't you think, still, 68mph is pretty good.
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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13-06-2004, 12:28 AM
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#11
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Registered User
Country: Hampshire
Location: The Solent
Occupation: IT
Boat name: Pepsea
Boat make: Tohatsu 6.6 Rib
Engines: Optimax 150
Join Date: Mar 2004
Location: The Solent
Posts: 205
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Or turn the little wheel thingy on the back of the rev counter so it thinks its only a 4 instead of a 6.
T
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13-06-2004, 02:14 AM
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#12
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hello
Join Date: Mar 2004
Posts: 2,739
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I wasn't confusing mph with kph cause I didn't record the speed I was just guessing from the rpm prop and final drive!!!
Also there is no 4 or 6 selecter on the back of the revcounter!!!
Its all down to my driving!!!
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13-06-2004, 02:18 AM
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#13
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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they are all tossers. i took the photo and i was scared shitless.
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13-06-2004, 02:19 AM
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#14
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Registered User
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer
Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
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but at the end of the day my boat is faster than yours!!!!!!!
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13-06-2004, 08:28 AM
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#15
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Registered User
Country: Hampshire
Location: The Solent
Occupation: IT
Boat name: Pepsea
Boat make: Tohatsu 6.6 Rib
Engines: Optimax 150
Join Date: Mar 2004
Location: The Solent
Posts: 205
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13-06-2004, 08:34 AM
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#16
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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It's clear non of you have ever been any where near 110, except mebbe just before your mum woke you up with a cup of tea.
Have you the faintest idea how many HP you'd need to get a P20 doing 110?
Being afraid at 70 is nothing to be ashamed of tho'. 
__________________
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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13-06-2004, 11:26 AM
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#17
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hello
Join Date: Mar 2004
Posts: 2,739
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Quote:
Originally posted by jon fuller
Have you the faintest idea how many HP you'd need to get a P20 doing 110?
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About 200!!!
It might not have been 110 but the tacho was reading 9500 with a 26 chop fitted and thats the honest truth!!!
I have a question for anyone with a mercury tacho. Whats it reading right now, this very moment? Zero? 
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13-06-2004, 06:19 PM
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#18
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally posted by Johnny Boat Dude
I have a question for anyone with a mercury tacho. Whats it reading right now, this very moment? Zero?
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Whatever it was reading when I turned the ignition off!
Of course it could be that the prop was turning air when it hit those revs! 
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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13-06-2004, 06:33 PM
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#19
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hello
Join Date: Mar 2004
Posts: 2,739
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Or it could be that whilst trying my new starter motor out the rev counter was kicking about a bit as I flicked the key on and off, as it sometimes does. Its not uncommon for it to stop on 2000-3000 rpm so when it had a big kick and stopped on 9500 I though it was to good an oppetunity to miss. The boat was on the trailer in my drive. I had to chop the picture a bit cause the full picture shows the water pressure gauge on zero and the key in the off position
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14-06-2004, 01:53 AM
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#20
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Here ya go!
No BS!
Would you go this fast in an open boat???
I would have serious reservations about it!
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