Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 21-11-2004, 08:39 PM   #1
Registered User
 
roofer's Avatar
 
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
how fast

how fast will my phantom 18 go with a 2.5efi 280 offshore motor swingin a 25 pitch chopper prop,the boat is being stripped out to race but is heavily built not a lightweight race hull.
__________________

roofer is offline   Reply With Quote
Old 21-11-2004, 08:42 PM   #2
Registered User
 

Join Date: Mar 2004
Posts: 472
FAST
__________________

__________________
boat less
BREN is offline   Reply With Quote
Old 21-11-2004, 08:44 PM   #3
Registered User
 
roofer's Avatar
 
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
i know that but how FAST!
__________________
PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
roofer is offline   Reply With Quote
Old 21-11-2004, 08:57 PM   #4
Registered User
 
K9 racing's Avatar
 
Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water

Join Date: Nov 2004
Location: southampton
Posts: 888
probable beetween 85 and 95mph!!!
K9 racing is offline   Reply With Quote
Old 21-11-2004, 09:01 PM   #5
numbskull
 
Jon Fuller's Avatar
 
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
I would also guess somewhere around 90
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 21-11-2004, 09:03 PM   #6
Registered User
 
roofer's Avatar
 
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
i thought about 85,95 would be very very nice but id have to be anerexic to get that speed
roofer is offline   Reply With Quote
Old 21-11-2004, 09:05 PM   #7
numbskull
 
Jon Fuller's Avatar
 
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
There was a P21 / 2.5 280 that ran 82 at windermere a few years back, and the 18 is a fair bit quicker for the same power, if conditions allow
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 21-11-2004, 09:08 PM   #8
Registered User
 
roofer's Avatar
 
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
the engine i bought has been tuned and balenced,but i dont know whats been done.
__________________
PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
roofer is offline   Reply With Quote
Old 21-11-2004, 10:02 PM   #9
Registered User
 
RHINO's Avatar
 
Country: ENGLAND
Boat name: V13
Boat make: V24 batboat
Engines: 5.7 320hp
Cruising area: SOUTHCOAST

Join Date: Mar 2004
Posts: 1,131
i have the performance record at windermere with my phantom 19 with a 280 efi. it ran 92 mph. the prop you propose will be crap. the prop you need is a raker,and i still have my one if you would like to try it.
RHINO is offline   Reply With Quote
Old 21-11-2004, 10:02 PM   #10
Taz
Registered User
 
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast

Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
Sod that it will be well unstable at that speed!

Rather you then me
__________________
[
Taz is offline   Reply With Quote
Old 21-11-2004, 10:03 PM   #11
numbskull
 
Jon Fuller's Avatar
 
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
Quote:
Originally posted by RHINO
i have the performance record at windermere with my phantom 19 with a 280 efi. it ran 92 mph.
That's Mooooovin!

(did you get Mantoss to drive it for you?)
Jon Fuller is offline   Reply With Quote
Old 21-11-2004, 10:25 PM   #12
Registered User
 
RHINO's Avatar
 
Country: ENGLAND
Boat name: V13
Boat make: V24 batboat
Engines: 5.7 320hp
Cruising area: SOUTHCOAST

Join Date: Mar 2004
Posts: 1,131
i know it will be hard to believe but it was quite stable and we think it would have faster if we had the next size prop. ask jackie hunt, of 4litre rib fame, as she was my co pilot
RHINO is offline   Reply With Quote
Old 22-11-2004, 09:13 AM   #13
BananaShark Member
 
Cookee's Avatar
 
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
Roofer - I reckon it'll be bouncing off the rev limiter if it has one with that prop - it'll swing at least a 26. Mind you do you know what it's been tuned to rev to?
__________________
Cookee



British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)

www.bananasharkracing.com
Cookee is offline   Reply With Quote
Old 22-11-2004, 10:25 AM   #14
numbskull
 
Jon Fuller's Avatar
 
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
They'll pull 8500 anyways!
__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Old 22-11-2004, 10:27 AM   #15
Registered User
 
Burty's Avatar
 
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer

Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
Send a message via AIM to Burty
Roofer, where did the engine come from?
i'm asking because i'm not aware of any software available over here (uk) to increase the rev limit hence not alot more power can be gained from a 280
Johnny knows alot more about it than me so its over to him.
Burty is offline   Reply With Quote
Old 22-11-2004, 10:28 AM   #16
Registered User
 
Burty's Avatar
 
Country: UK
Location: Weston Super Mare
Occupation: Electrical Engineer

Join Date: Mar 2004
Location: Weston Super Mare
Posts: 6,351
Send a message via AIM to Burty
Think the rev limit is 8250
Burty is offline   Reply With Quote
Old 22-11-2004, 10:36 AM   #17
Registered User
 
roofer's Avatar
 
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
i was told the engine belonged to charles burnett the american offshore racer,it was left over here when he packed up racing.the engine was tuned by smilin jack florida.
__________________
PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
roofer is offline   Reply With Quote
Old 22-11-2004, 10:39 AM   #18
Registered User
 
roofer's Avatar
 
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
cookee,ive just had the prop repitched and resized down from a 26 to a 25 on advice from a man who knows all about the kind of racing i'll be doing.
__________________
PLEASE DON'T STEAL...THE GOVERNMENT DON'T LIKE THE COMPETITION
roofer is offline   Reply With Quote
Old 22-11-2004, 12:14 PM   #19
hello
 

Join Date: Mar 2004
Posts: 2,739
There are 2 versions of the 280. A consumer one and a race one the consumer one is limited to 7500 and the race one is 8200. I think you only get the race one over here though. If its on a 15" or an offshore mid it will be the race offshore version 8200rpm, assmuing the power heads never been swapped. If you want mega power and revs its best to swap to 260 or Drag electronics and change to a 56PSI (black) fuel reg and ECU. Its not just the limiter on the 280, the igniton cant hadle more than about 8500rpm. Dont know anything about circuit racing but is top speed everything ir do you need acceleration out of the corners too? There was a ski boat in weston (Palpataions, P21 lightweight) that ran 87mph gps with a tuned 280 towing a skier.
JamesM is offline   Reply With Quote
Old 22-11-2004, 01:12 PM   #20
numbskull
 
Jon Fuller's Avatar
 
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
I think the circuit motors will pull over 9K
__________________

__________________
.

"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
Jon Fuller is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT +1. The time now is 01:51 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
×