Bandit
regular
Reged: 30/06/2004
Posts: 620
Loc: Guernsey
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Has anyone got the basic Floscan fuel consumption meter for diesels ?.
Does it work .
Is it accurate .
Do you use it ?
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jrb1978
regular
Reged: 04/04/2005
Posts: 7835
Loc: ality Unknown
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Not used it. The NavMan version is very good however. How much is the flow scan kit?
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trialframe
regular
Reged: 04/11/2003
Posts: 61
Loc: Weymouth UK
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Had one on my Nimbus 320 fitted with Yanmar 4LHA 240hp. Installed it myself. Excellent piece of kit, very accurate. Takes quite a while to install. Interfaces with GPS to give liters/mile.
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Nickcf
regular
Reged: 13/04/2004
Posts: 448
Loc: Kent
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Quote:
The NavMan version is very good however.
Navman have recently stopped selling the Diesel flow kit. They are rebranding as Northstar so it may be it will be relaunched but no-one seems to know. Just tried to buy one...!
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Gludy
regular
Reged: 19/08/2001
Posts: 6659
Loc: Brecon, Wales
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As a matter of interest I have a brand new dual Floscan system in the box that i never installed.
If anyone is interested in one at £1000 off retail then PM me.
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Paul
St Francis 50 Cat
My Multihull Forum
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PCUK
regular
Reged: 29/06/2005
Posts: 1983
Loc: Devon
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I've had an analogue Flowscan for ten years and it is accurate to within a couple of percent. I believe the latest versions are easier to install as they have no dampers in the fuel lines.
Gludy's offer sounds very good!
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jrb1978
regular
Reged: 04/04/2005
Posts: 7835
Loc: ality Unknown
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Quote:
If anyone is interested in one at £1000 off retail then PM me.
Christ, how much are they to start with????
The Navman one (which is now apparently unavailable) was only £700 retail 
And it worked very well with volumetric senders on both the delivery and return lines.
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Gludy
regular
Reged: 19/08/2001
Posts: 6659
Loc: Brecon, Wales
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They are expensive
A new pair that can cope with up to 700hp or so engines with the GPS link so that you get a live mpg and the replacement tacho etc costs about £2500. These are the new easy to install type complete with a very clear DVD on how to install.
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Paul
St Francis 50 Cat
My Multihull Forum
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jrb1978
regular
Reged: 04/04/2005
Posts: 7835
Loc: ality Unknown
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Ok, so it is the engine power that is the main difference - the NM ones can only cope with 400Hp per engine.
Still, speed etc etc all taken from NMEA so not really an option that you should have to specify.
£2500!!!! And I thought the NM ones were pricey at £750 to start with.
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Gludy
regular
Reged: 19/08/2001
Posts: 6659
Loc: Brecon, Wales
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Do the Nm ones also measure the return?
Its some time now since I dealt with this and chose the Floscan, so I am going from memory.
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Paul
St Francis 50 Cat
My Multihull Forum
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Nickcf
regular
Reged: 13/04/2004
Posts: 448
Loc: Kent
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Quote:
Do the Nm ones also measure the return?
Its some time now since I dealt with this and chose the Floscan, so I am going from memory.
For diesel engines it is necessary to monitor both flow and return. All flow meters for diesel do this. The (now unavailable!) Navman 3200 unit covered engines with a max flow of 400 litres per hour and a minimum return flow of 25 litres.
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jrb1978
regular
Reged: 04/04/2005
Posts: 7835
Loc: ality Unknown
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Yes, two senders per engine, one for the delivery and one for the flow.
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PCUK
regular
Reged: 29/06/2005
Posts: 1983
Loc: Devon
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There used to be a brilliant unit from Mecdine that converted the engine to self priming (before this was common) and incorporated the return into the feed with a fuel cooler and self bleeding unit that took care of air. This only needed the feed. I had one on a Bedford 466 and it worked superbly well. Only cost about a hundred quid as well. Wasn't the demand then, so production stopped.
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Bandit
regular
Reged: 30/06/2004
Posts: 620
Loc: Guernsey
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I have twin 370 hp and I have Tanktender guages which are very accurate.
1/ I really want to know fairly accurately how much the engines burn at certain rpm/speeds. Ie i want to have an economic cruise speed.
2/ I want to evaluate the effect of hull slime and growth.
3/ The Tanktender shows me how much fuel I have quite accurately.
I am proposing being a cheapskate to monitor only one engine as I know they burn pretty much the same fuel.
I can work out the MPG and range using a calculator.
I understand that the simple one is about £500.
I will establish a graph with a clean hull of MPG(GPM) really LPM as i am metric most of the time and from that I can work range.
I dont do much long range runs so range is not an issue.
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Ballistix
regular
Reged: 12/02/2008
Posts: 658
Loc: Oxfordshire
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This appears to be interesting to me too. I had a scout around and found for a single Mercruiser 5.7L V8 EFi, my engine, it could be found for £150. Is this the same thing?
http://www.foreandaftmarine.com/flowscancruise.htm
T
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jrb1978
regular
Reged: 04/04/2005
Posts: 7835
Loc: ality Unknown
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Much simpler device for petrol engines.
Diesel use volumttric senders in the out and return lines. The Petrol version use measure flow not volume one way using a paddle wheel.
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Ballistix
regular
Reged: 12/02/2008
Posts: 658
Loc: Oxfordshire
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Ah, OK, thanks for the explanation, hence the price differential. Might fit one of these then...DIY job? 
T
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jrb1978
regular
Reged: 04/04/2005
Posts: 7835
Loc: ality Unknown
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Easily a DIY job on the most part - the only thing you might need help with is making up the fuel line joints.
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Ballistix
regular
Reged: 12/02/2008
Posts: 658
Loc: Oxfordshire
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Ah thanks. Thinking whether the 55000 or the 70000 or the 90000 now...quite fancy the 90000 because it has the l/nm.
They all seem much cheaper in the USA...anyone know of any UK dealers and prices?
Cheers
T
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Gludy
regular
Reged: 19/08/2001
Posts: 6659
Loc: Brecon, Wales
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There is a UK dealer - I think they are in Poole.
They are expensive.
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Paul
St Francis 50 Cat
My Multihull Forum
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Ballistix
regular
Reged: 12/02/2008
Posts: 658
Loc: Oxfordshire
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Just grabbed the 5500 from a US dealer for £200 inc shipping express. I don't think I'd get it better from anywhere else...will DIY fit this weekend, should be a useful bit of kit, and I'm keen to see what I'm burning.
T
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craggy
new user
Reged: 22/06/2008
Posts: 1
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Hi I was just wondering which dealer you purchased your 55000 from?
I'm looking for a twin diesel option.
cheers
Craggy
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Ballistix
regular
Reged: 12/02/2008
Posts: 658
Loc: Oxfordshire
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www.wmjmarine.com
They seemed very efficient and communicated well. Had it within 3 days.
T
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