Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 07-09-2009, 02:01 PM   #1
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
need more speed!!!

speed tested my boat today for the first time since fitting my new powerhead, smooth/slight conditions. and to be honost was dissapointed.

im running an old shape ring 18 (the magician) with '98 XR2 200hp with offshore leg and standard box. using normal unleaded pre-mixed at 33-1
using a 26pitch drag prop and running just under 6000rpm
i have the motor jacked up on the transom so the bullet of the gearbox is vertually level with the V.
only hitting speeds of 55mph! and trimming up doesnt really make much difference, slows me down if anythin!
was hoping to be more like in the high 60's!!

any help or set up tips would be much appriciated
__________________

martynwilley is offline   Reply With Quote
Old 07-09-2009, 02:16 PM   #2
Registered User
 
scooby_hugh's Avatar
 
Country: UK
Location: Guernsey
Occupation: Network Engineer
Boat make: Argo 21
Engines: 2.5 EFI
Cruising area: Channel Islands

Join Date: May 2009
Location: Guernsey
Posts: 398
I think your xr2 should be revving to about 7/7.5 k not under 6, maybe you should try a diff prop 55mph it terrible with that boat and engine!! Good luck
__________________

scooby_hugh is offline   Reply With Quote
Old 07-09-2009, 02:26 PM   #3
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: 4,632
23 or 24 inch prop!
__________________
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 07-09-2009, 02:30 PM   #4
Registered User
 
andy21's Avatar
 
Country: UK
Occupation: Designin' Stuff
Interests: Boating/4x4s/Fast Cars
Boat name: Namotu
Boat make: Extreme 24
Engines: 383 Mag Stroker
Cruising area: Channel Isles

Join Date: Aug 2008
Posts: 557
Hello Matey!

Is that one of the Yam props? I tried a 26 one of them on mine and it would only just touch on 50 knots at the limiter compared to 56 knots with a Laser 2 23 pitch...

What other props have you got?
__________________
I like boating
andy21 is offline   Reply With Quote
Old 07-09-2009, 02:35 PM   #5
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
yeah a yam prop. i aint got any other props. sold all my laser 2's. think its gonna be a case of borrowin a few off different people till i find what i need then buy 1 to suit my setup.

thanks everyone and keep the suggestions coming
martynwilley is offline   Reply With Quote
Old 07-09-2009, 03:27 PM   #6
topgun
 
topgun's Avatar
 
Country: Guernsey
Location: Guernsey
Occupation: Civil Servant/ Senior driving examiner
Interests: Boats/bikes/Black label
Boat name: Flash Back/Avenger/Anchor Management
Boat make: Sunseeker San Remo/mini cougar/Cougar cat 25/Avenger 21
Engines: San Remo 2x Volvo 5.7 v8/mini cougar Yamaha 25/Cougar 2x twin spark Yam V6/Avenger has volvo 300v8
Cruising area: C.I.Waters

Join Date: Jul 2009
Location: Guernsey
Posts: 500
Hi Martin,

Why dont you phone Dave Trotter Satellite Services And Supplies 253498
he owned and raced Magician before he had his P25

Most Rings seem happy with a Laser, a 26 sounds a bit big for your set up.
If you look up Phantom 25 raceboats on utube it shows the Guernsey nationals from the 80's and amongst the 25's is some good footage of your boat.
I will try to find the link for you.

Steve
topgun is offline   Reply With Quote
Old 07-09-2009, 06:26 PM   #7
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
yeah i spoke to dave trotter this morning an he gave me some helpful advice. and yes i have seen the video on youtube 'phantom raceboats' some great clips of my boat in its younger days.

i have found a chopper prop and a cleaver to try, as dave said its cuz the ass end of the magician is heavy and need to create some lift on the back.

might try dropping the motor back down the transom an inch so i can use more trim and see if that makes a difference.

cheers
martynwilley is offline   Reply With Quote
Old 07-09-2009, 07:03 PM   #8
Registered User
 

Join Date: Jun 2009
Posts: 670
should be getting more than that...ive got a big old heavy marshan 19 with a 200XR2 (earlly 90's) and with my high five(23p) its giving me 60mph at 7000 and with my chopper(23p) ime getting a shade under 70 at 6900..both with the nose 1" below and trimmed out to give an impressive rooster . make sure you aint got a bad pair of coils as i used to have which made mine flat as a witches tit

edit...looking at your 1st post it looks like you've over propped it a tad
baj666 is offline   Reply With Quote
Old 08-09-2009, 03:42 PM   #9
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
ok, so i got a worked QSS chopper 26pitch to try. still think i need to go down on the pitch thou.

anyone on geurney got a chopper or cleaver 23pitch i could try?? think thats the sort of prop i need?
martynwilley is offline   Reply With Quote
Old 08-09-2009, 04:11 PM   #10
Registered User
 
scooby_hugh's Avatar
 
Country: UK
Location: Guernsey
Occupation: Network Engineer
Boat make: Argo 21
Engines: 2.5 EFI
Cruising area: Channel Islands

Join Date: May 2009
Location: Guernsey
Posts: 398
Maybe kev walsh or someone from the gpa, im sure theres lots knocking around
scooby_hugh is offline   Reply With Quote
Old 08-09-2009, 04:12 PM   #11
Registered User
 
scooby_hugh's Avatar
 
Country: UK
Location: Guernsey
Occupation: Network Engineer
Boat make: Argo 21
Engines: 2.5 EFI
Cruising area: Channel Islands

Join Date: May 2009
Location: Guernsey
Posts: 398
Just remembered simon vermulen (big dutch) has a 24 pitch QSS he may let u try... Send him a pm
scooby_hugh is offline   Reply With Quote
Old 08-09-2009, 04:24 PM   #12
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
thanks scooby got hold of kev and he's hooked me up with a 24pitch cleaver,

hopefully should give me some stern lift an an put me in the high 60's
martynwilley is offline   Reply With Quote
Old 08-09-2009, 04:34 PM   #13
Registered User
 
scooby_hugh's Avatar
 
Country: UK
Location: Guernsey
Occupation: Network Engineer
Boat make: Argo 21
Engines: 2.5 EFI
Cruising area: Channel Islands

Join Date: May 2009
Location: Guernsey
Posts: 398
good luck!! although a choppers tend to be better on rings as rings like to ride a bit bow up but at the end of the day its all down to testing and personal preferance, try as many props as you can before you buy one and let us know how it goes with the cleaver
scooby_hugh is offline   Reply With Quote
Old 08-09-2009, 07:13 PM   #14
Registered User
 
cooolaii's Avatar
 
Country: gibraltar
Location: gibraltar
Occupation: Shop Proprietor
Interests: ocr,sleeping
Boat name: The Rock
Boat make: Phantom 19XL
Engines: Yamaha 130B

Join Date: Mar 2006
Location: gibraltar
Posts: 331
Hi Raker 24 can be good all rounder,XR2 used to use them in OCR, but testing differant staff is the best thing before buying.
cooolaii is offline   Reply With Quote
Old 09-09-2009, 09:19 AM   #15
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: 4,632
A raker will give you bow lift and a Cleaver the opposite, so the first thing you need to decide is what you need!
__________________
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 19-09-2009, 06:37 PM   #16
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
ok so i got a 24p chopper worked by propeller revolutions an just got home after takin it out for 20mins. 6700rpm 66mph an im very very happy!!!
there is a whole other powerband above 600rpm i hadnt even hit with the 26p id been using. goin out again tomorrow to try 23p spinelli cleaver
martynwilley is offline   Reply With Quote
Old 19-09-2009, 06:49 PM   #17
Registered User
 
Big V's Avatar
 
Location: Guernsey
Interests: Powerboats and Rugby
Boat name: C96 Fast Air
Boat make: Ocke Mannerfelt B-23
Engines: Mercury 200XS
Cruising area: Channel Islands

Join Date: Oct 2008
Location: Guernsey
Posts: 532
Quote:
Originally Posted by martynwilley View Post
ok so i got a 24p chopper worked by propeller revolutions an just got home after takin it out for 20mins. 6700rpm 66mph an im very very happy!!!
there is a whole other powerband above 600rpm i hadnt even hit with the 26p id been using. goin out again tomorrow to try 23p spinelli cleaver


great news mate!!

good work

looking forward to racing with you next year.

Jacques
Big V is offline   Reply With Quote
Old 19-09-2009, 06:55 PM   #18
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
cheers J,

yeah im hopin to be right on your tail next year

an maybe out ahead in the rough

p.s im in town tonight 4 my B-day. if your out tap me up
martynwilley is offline   Reply With Quote
Old 19-09-2009, 08:06 PM   #19
Registered User
 

Join Date: Jun 2009
Posts: 670
Quote:
Originally Posted by martynwilley View Post
ok so i got a 24p chopper worked by propeller revolutions an just got home after takin it out for 20mins. 6700rpm 66mph an im very very happy!!!
there is a whole other powerband above 600rpm i hadnt even hit with the 26p id been using. goin out again tomorrow to try 23p spinelli cleaver
now your talkin ..did you have a bit of sea or was it flat
baj666 is offline   Reply With Quote
Old 20-09-2009, 04:49 PM   #20
Martyn W
 
martynwilley's Avatar
 
Country: uk
Location: Guernsey Channel island
Occupation: wholesale food sales
Interests: Burning fuel!!!
Boat name: The Magician, A Fine Pair
Boat make: ring20b, chriscraft stinger 26
Engines: merc XR2, 2X AQ311B 5.7's
Cruising area: channel islands

Join Date: Jul 2009
Location: Guernsey Channel island
Posts: 284
lil bit of chop,
trimmed up with a little spray comin out the back, but recon it'll do better flat calm with a nice big rooster tail
__________________

martynwilley 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 04:23 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×