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20-04-2006, 02:21 PM
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#1
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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300 Pro Max
Anyone know a good hame for a very clean 2000/01 300 ProMax
on 20" Offshore leg I have a customer who wants to change it for a quieter 250 Etec. i think it has done about 20 hrs in last 3 years . looking for about 4.000 ish for it.
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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20-04-2006, 02:27 PM
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#2
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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G'box type? Torquemaster ?
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It is impossible to lick your elbow.
Team25Racing.com 
At least 75% of people who read this will try to lick their elbow!
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20-04-2006, 02:52 PM
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#3
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The Doc
Join Date: Mar 2004
Posts: 8,291
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'x'
or non 'x'
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20-04-2006, 03:47 PM
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#4
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Registered User
Country: england
Location: the grim north
Occupation: robot
Cruising area: tyne
Join Date: Nov 2004
Location: the grim north
Posts: 915
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Quote:
Originally posted by Captain Chaos
'x'
or non 'x'
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pro max
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Speed costs weight so what do we cut off first 
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20-04-2006, 03:57 PM
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#5
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The Doc
Join Date: Mar 2004
Posts: 8,291
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yeh but "pro max" or "pro max X"
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20-04-2006, 04:37 PM
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#6
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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ProMax
"Yes" !!
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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20-04-2006, 04:48 PM
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#7
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Registered User
Location: GOLDEN MILE
Boat name: LILY THE PINK AND TERMINATOR 11
Boat make: PHANTOM 21 AND 20
Engines: 2.5 EFI X 2
Join Date: Mar 2004
Location: GOLDEN MILE
Posts: 2,475
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Pm sent.
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PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
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20-04-2006, 08:09 PM
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#8
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Registered User
Country: England
Location: Birmingham
Occupation: Scratching
Interests: Big Dinners
Boat name: Never Enough
Boat make: Seaquel 600xs
Engines: 225hp Merc ProMax
Cruising area: Anywhere! I prefer Weymouth
Join Date: May 2005
Location: Birmingham
Posts: 3,232
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The people who are selling the P25 on B&O have one for only a few hrs on!
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 I got jumper cables!
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20-04-2006, 08:12 PM
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#9
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Registered User
Location: GOLDEN MILE
Boat name: LILY THE PINK AND TERMINATOR 11
Boat make: PHANTOM 21 AND 20
Engines: 2.5 EFI X 2
Join Date: Mar 2004
Location: GOLDEN MILE
Posts: 2,475
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Quote:
Originally posted by MrRob
The people who are selling the P25 on B&O have one for only a few hrs on!
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I think if you put a ddt on that motor it will have done lots of hours.
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PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
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20-04-2006, 08:16 PM
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#10
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The Doc
Join Date: Mar 2004
Posts: 8,291
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i'd suspected that.
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20-04-2006, 09:35 PM
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#11
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Registered User
Country: UK
Location: Thorpe Bay
Occupation: IT Director, www.lighthouseit.co.uk
Interests: Boats, Surfing & Snowboarding
Boat name: Isabella / Cool Runnings II / Bella / Sea Pup / Sea Dog / Speedy II / Bernico F3
Boat make: Colvic 35 Suncruiser / Bernico F3 / Phantom 16 / Zodiac 420 YL / RIB / Apollo 9
Engines: 2 x Perkins Sabre 225ti / Mercury Pro XS /Mercury Pro XS 115/ Tohatsu 2.5 / Mercury 25 / Mercury 50
Cruising area: Thames Estuary / River Crouch / Salcombe
Join Date: Jun 2004
Location: Thorpe Bay
Posts: 932
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They did put a DDT on it and can do so again if you wanted to buy it!
Did you know the "X" stands for unknow? depending on who built the "x" engine the badged 300HP can produce anywhere between 320 -345 HP! 
Its no longer for sale by the way.
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Loving the Spitfire with a 25HP Mercury
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20-04-2006, 09:38 PM
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#12
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The Doc
Join Date: Mar 2004
Posts: 8,291
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'X'
thats great.............. hope 'Wild Bill' built mine then 
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20-04-2006, 10:05 PM
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#13
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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Re: 'X'
Quote:
Originally posted by Captain Chaos
thats great.............. hope 'Wild Bill' built mine then
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Pro Max is around 275 Hp so a tad down on the X
__________________
It is impossible to lick your elbow.
Team25Racing.com
At least 75% of people who read this will try to lick their elbow!
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20-04-2006, 10:07 PM
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#14
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Registered User
Location: GOLDEN MILE
Boat name: LILY THE PINK AND TERMINATOR 11
Boat make: PHANTOM 21 AND 20
Engines: 2.5 EFI X 2
Join Date: Mar 2004
Location: GOLDEN MILE
Posts: 2,475
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Re: Re: 'X'
Quote:
Originally posted by BluFin
Pro Max is around 275 Hp so a tad down on the X
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Simonsmotorsports does a nice mod to 335 reliable hp.
__________________
PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
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20-04-2006, 10:12 PM
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#15
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Traveling
Country: UK
Location: Alderholt
Occupation: Aerospace
Boat name: T/T D2S
Boat make: Midas 27' Cat, Argo 16 Cat. Avon Rib Thingy
Engines: Merc 280-ROS -JSRE,65Xs, 75 Stinger, Yam 60
Cruising area: Any Seedy Bar
Join Date: Sep 2004
Location: Alderholt
Posts: 4,225
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Fingers in my ears "LA,LA,LA,LA,LA,LA"
__________________
It is impossible to lick your elbow.
Team25Racing.com
At least 75% of people who read this will try to lick their elbow!
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20-04-2006, 10:43 PM
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#16
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Registered User
Boat make: Phantom 23
Join Date: Mar 2006
Posts: 1,693
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Quote:
Originally posted by Silversurfer
between 320 -345 HP!
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where'd ya hear that from?
thats just roumers, true its around 320 hp but when Eric Simon Dyno'd it he said that it is atchually 300 hp at the prop!
Fact:elarlier 300promax's had around 275 hp
Fact:the later models had the full 300hp
later models had a few different bits on them.. coils, intake was duel choke with 4 butterfly's insted of the elarlier models which only had 2 butterflys,
I have a dyno graph of a newer model 300 promax with nothing but Waynes tuner and it makes around 310 hp.
Eric Simon also says the mad efi tuner adds 5hp on a stock engine , but a 300 with intakes and heads etc, it can make 10+hp,
i doupt that with a change of tuner a engine can make over 10% more hp
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20-04-2006, 11:09 PM
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#17
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Registered User
Boat make: Phantom 23
Join Date: Mar 2006
Posts: 1,693
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there was also a carb version of the 300 promax.all the later models were EFI.
there was a 300 p/m (carb) for sale in IOW some time last year, up for 5200 !
IMO 4k is a bargian! if its got a sporty, be wary about the seal around the propshaft, as the 3.0 sporty has some sort of alloy prop and drive shafts, so when your propshaft rusts around the seal, water gets in and you will have a fekked gearbox!just whip off the prop and take a good look around the shaft, any sign of rust where the seal is, steer well clear or you could find your self with a hefty bill.
Dyno attached-
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21-04-2006, 12:34 AM
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#18
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Large member
Country: England
Location: On the farm
Occupation: General Trouble Causer Salterns Boatyard
Interests: Official smartass
Boat name: Seahorse.org
Boat make: a V24 and a SLOW unstable ICE Bladerunner
Engines: 2x300 promax, 320 Volvo
Cruising area: England/France & Med
Join Date: May 2005
Location: On the farm
Posts: 2,681
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Just a small reminder to check the serial numbers of any second hand outboard engines you buy.
You need to determine clear title.
If you buy stolen goods, the original owner can just come get them back, and you loose the engines, the money paid, and possibly get a Police record...
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21-04-2006, 01:16 AM
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#19
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The Doc
Join Date: Mar 2004
Posts: 8,291
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any news tricky?
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22-04-2006, 11:12 AM
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#20
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Large member
Country: England
Location: On the farm
Occupation: General Trouble Causer Salterns Boatyard
Interests: Official smartass
Boat name: Seahorse.org
Boat make: a V24 and a SLOW unstable ICE Bladerunner
Engines: 2x300 promax, 320 Volvo
Cruising area: England/France & Med
Join Date: May 2005
Location: On the farm
Posts: 2,681
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Might be - I will definately keep you informed!
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