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23-05-2013, 01:16 PM
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#1
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Captain slow
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent
Join Date: Mar 2006
Location: surrey
Posts: 478
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Advice on injectors
Just had my injectors serviced,they come back with the following flow rates:
1----115
2----116
3----115
4----116
5----115
6----113
My question is,am I right in thinking I should fit the highest flow injectors in the lowest pistons?i.e the ones with 116 in 5&6 then the ones with 115 in 2,3&4 and the one with 113 in pot 1?
Thanks andymac.
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23-05-2013, 01:32 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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no, highest flow in 2 and 5.
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23-05-2013, 01:32 PM
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#3
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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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actually, it might be 1 and 6!!! oops cant remember now!!
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23-05-2013, 01:52 PM
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#4
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Captain slow
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent
Join Date: Mar 2006
Location: surrey
Posts: 478
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Or it could be 3&4
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23-05-2013, 02:09 PM
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#5
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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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defo not 3 and 4!! its the 2 pistons that run hottest which is either 2 and 5 or 1 and 6 depending on which way you look at it but i cant remember which way it is!!
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23-05-2013, 02:33 PM
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#6
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Captain slow
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent
Join Date: Mar 2006
Location: surrey
Posts: 478
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Rob,
My thinking was that the exhaust gases from the top 4 cylinders pass the bottom 2 (cylinders 5&6) on their way out,so making 5&6 hotter,thus needing more fuel/oil in 5&6.is this what you are saying?
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23-05-2013, 08:46 PM
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#7
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Registered User
Country: England
Occupation: I have 1!
Boat name: vodka express/smoking aces
Boat make: liberator 221/extreme 24
Engines: 7.4 v8 8.2 v8
Cruising area: Portsmouth
Join Date: Jul 2009
Posts: 457
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Quote:
Originally Posted by andymac
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Or 7 and 8 on a proper engine mr Mac! Hehehe
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23-05-2013, 11:34 PM
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#8
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The Doc
Join Date: Mar 2004
Posts: 8,291
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Or 11 & 12 stef!
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24-05-2013, 12:12 AM
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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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Defo highest in 2 and 5, there the lean cyls.
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24-05-2013, 12:14 AM
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#10
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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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Quote:
Originally Posted by Burty
defo not 3 and 4!! its the 2 pistons that run hottest which is either 2 and 5 or 1 and 6 depending on which way you look at it but i cant remember which way it is!!
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Think it's one and six on a sst motor, as it spins the other way
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24-05-2013, 01:16 AM
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#11
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Captain slow
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent
Join Date: Mar 2006
Location: surrey
Posts: 478
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Cheers,2&5 it is then.
Stef you got that old tub going yet??
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24-05-2013, 08:53 AM
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#12
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Registered User
Country: England
Occupation: I have 1!
Boat name: vodka express/smoking aces
Boat make: liberator 221/extreme 24
Engines: 7.4 v8 8.2 v8
Cruising area: Portsmouth
Join Date: Jul 2009
Posts: 457
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Quote:
Originally Posted by Captain Chaos
Or 11 & 12 stef!
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😜 good point! Lol
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24-05-2013, 02:14 PM
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#13
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Registered User
Country: UK
Location: Windermere
Join Date: Oct 2005
Location: Windermere
Posts: 559
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As a matter of interest what engine is it ?
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24-05-2013, 03:09 PM
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#14
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The Doc
Join Date: Mar 2004
Posts: 8,291
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260 i think
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24-05-2013, 03:34 PM
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#15
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Registered User
Country: UK
Location: Windermere
Join Date: Oct 2005
Location: Windermere
Posts: 559
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Quote:
Originally Posted by Captain Chaos
260 i think
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Righto
Did they just give you those flow rates or have they qualified them somehow ?
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24-05-2013, 04:00 PM
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#16
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Registered User
Country: UK
Location: london
Occupation: Powerboat Skipper
Interests: Boats , bikes!
Boat name: Renegade
Boat make: GPV-RENEGADE
Engines: 150 HO etec
Cruising area: Thames, south coast, anywhere!
Join Date: Dec 2008
Location: london
Posts: 2,330
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Ain't it a smiling Jack?
__________________
Im re branding pepper spray as Arsehole Repellant.im going to make a fortune.
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24-05-2013, 09:42 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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100% 5&6 which naturally run the hottest
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24-05-2013, 11:05 PM
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#18
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Captain slow
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent
Join Date: Mar 2006
Location: surrey
Posts: 478
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260 smillin jack(enoughish HP)
Techteam,they gave me a before and after figure.don't know if it's mls or gallons,but there is an improvement on all 6(not 8 steff or 12 loz).the best was on#4 from 112 to116.and #6 from 110 to113 which is 3.5 & 2.7% increase respectively.it's all bull shine to me but that's why I asked the question.looks like I'll be going with 2&5.they where done(I was)on an ASNU system.feed back most welcome. those xr2's were so good!!
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25-05-2013, 01:37 AM
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#19
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Captain slow
Country: england
Location: surrey
Boat name: terminal velocity no.120
Boat make: phantom20
Engines: 2.5efi smillin jack
Cruising area: solent
Join Date: Mar 2006
Location: surrey
Posts: 478
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Rossm
I miss read what you posted it's now 5&6 with the next lively ones on the bank above.Thank The Lord I have not got 8 too deal with.that would get very confussingamegig. Whoop whoop: Steff ima ready for muscle power!never bin bovvered about bullies b4!sort those two cylinders out,n see how the #120 gets on a.Whoop Whoop!
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25-05-2013, 09:41 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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Pull the jets out of any carbed merc and see which carbs have the bigger jets in.
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