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Mauledriver(at)nc.rr.com
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 Posted: Sun Mar 30, 2014 8:21 am Post subject: Need help with FloScan re-location from tunnel to engine c |
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Thanks!
(do not archive)
On 3/28/2014 10:31 PM, Sean Stephens wrote:
| Quote: |
Bill, here's a slew of various installs of the red cube fwf...
http://www.matronics.com/forums/viewtopic.php?t=93819
-Sean #40303 (Just weighed the bird)
> Bill Watson <mailto:Mauledriver(at)nc.rr.com>
> March 28, 2014 at 8:42 PM
>
>
> Can anyone point me to any installation pictures of FloScan
> installations where the unit is mounted between the fuel controller
> and the spider? Any links or pics appreciated.
>
> Background:
> I've decided to change the location of my fuel flow unit from the
> tunnel to between the fuel controller and the spider. I've seen a
> few pictures of other installations but I know I've seen some I can't
> find at the moment.
>
> I've gotten quite comfortable with the tunnel installation. There's
> no doubt that it's a bit inaccurate with the boost pump on but that's
> not really a problem.
>
> However, the folks at Airflow pointed out 2 other issues that I'm in
> fact experiencing:
> 1) Fuel flow readings fluctuate a bit, as recorded by my GRT system.
> It's only plus/minus .2GPH but it limits the accuracy of my nozzle
> tuning efforts. I'm tuned up pretty good right now but I'd like to
> improve it a bit more.
> 2) During full power climbs my fuel pressure drops a bit below where
> it should and that causes me to turn on my boost pump for short
> periods of time midway up during my climb outs. I can't recite the
> exact reasons for that as described by Don Rivera at Airflow, but
> it's related to the restriction of flow sensor and it's location
> between the tank and the engine driven fuel pump. As I understand it,
> it's best to have as few restrictions as possible upstream of the
> fuel pump. And having inadequate fuel pressure during full power
> operations is undesirable.
>
> Bill
>
>
-----
No virus found in this message.
Checked by AVG - www.avg.com
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Mauledriver(at)nc.rr.com
Guest
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| Posted: Sun Mar 30, 2014 8:32 am Post subject: Need help with FloScan re-location from tunnel to engine c |
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How's the iStart unit working for you?
This has been my first fuel injected engine. Thankfully I've been able
to stick to a single set of procedures for cold and hot starts:
- Cold: Crack throttle 1/4" or so, turn on boost pump until (tunnel
mounted Flowscan) fuel flow meter shows a constant value, then open
mixture for 5 seconds or until flow meter shows constant value. Then
close mixture. Crank until firing, then open mixture to any running
value desired.
- Hot: Crack throttle 1/4" or so, turn on boost pump until (tunnel
mounted Flowscan) fuel flow meter shows a constant value, (delete),
Crank until firing, then open mixture to any running value desired.
The Hot Start procedure works on hot Carolina days, even trying to
re-start seconds after shutdown. If the mixture is accidentally opened
before cranking, the engine floods and difficulties are encountered.
I hope the procedures continue to work after I relocate the Flowscan unit.
On 3/28/2014 10:21 PM, Linn Walters wrote:
| Quote: |
Doesn't answer your exact question but I mounted my floscan to the
lower engine mount crossbar. I used Adel clamps to attach a 2X2"
aluminum angle that the floscan mounts on so it's between the
mechanical pump and the fuel servo. The reason I did it that way is
I've installed an iSTART system that injects fuel into the air intake
past the fuel servo. See it in use here: http://istartair.com/. If I
placed the floscan between the servo and spider the fuel usage
wouldn't be as accurate as I want. You reminded me to take pictures
which I'll do after Sun -n-Fun.
Linn
On 3/28/2014 9:42 PM, Bill Watson wrote:
>
>
> Can anyone point me to any installation pictures of FloScan
> installations where the unit is mounted between the fuel controller
> and the spider? Any links or pics appreciated.
>
> Background:
> I've decided to change the location of my fuel flow unit from the
> tunnel to between the fuel controller and the spider. I've seen a
> few pictures of other installations but I know I've seen some I can't
> find at the moment.
>
> I've gotten quite comfortable with the tunnel installation. There's
> no doubt that it's a bit inaccurate with the boost pump on but that's
> not really a problem.
>
> However, the folks at Airflow pointed out 2 other issues that I'm in
> fact experiencing:
> 1) Fuel flow readings fluctuate a bit, as recorded by my GRT system.
> It's only plus/minus .2GPH but it limits the accuracy of my nozzle
> tuning efforts. I'm tuned up pretty good right now but I'd like to
> improve it a bit more.
> 2) During full power climbs my fuel pressure drops a bit below where
> it should and that causes me to turn on my boost pump for short
> periods of time midway up during my climb outs. I can't recite the
> exact reasons for that as described by Don Rivera at Airflow, but
> it's related to the restriction of flow sensor and it's location
> between the tank and the engine driven fuel pump. As I understand it,
> it's best to have as few restrictions as possible upstream of the
> fuel pump. And having inadequate fuel pressure during full power
> operations is undesirable.
>
> Bill
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
-----
No virus found in this message.
Checked by AVG - www.avg.com
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Mauledriver(at)nc.rr.com
Guest
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| Posted: Sun Mar 30, 2014 12:47 pm Post subject: Need help with FloScan re-location from tunnel to engine c |
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Thanks, that helps.
Regarding the 90 degree fitting; the 90degree fitting shown on your old hose is the "full flow" type according to Don(at)Airflow, and that's okay. The fitting you want to avoid is the 90 degree fitting where there is no curve. That type of fitting will impede the free flow of fuel. (I'm just repeating what Don told our class a few weeks ago).
On 3/30/2014 1:57 PM, Deems Davis wrote:
[quote] Yes,
I went through the same thing after talking to Don (at) Airflow, I have the Floscan and "mounted " it (at) the front corner of the engine case http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04976.html. I used a mounting bracket fabbed out of alu similar to: http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04980.html. I ordered 2 new hoses to replace this: http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04978.html. The hose the connects the servo and the flow scan has a right angle fitting where it connects to the floscan. There is a caution some where about avoiding that, but the configuration works flawlessly with no fluctuations.
On Sun, Mar 30, 2014 at 9:34 AM, Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)> wrote:
[quote]--> RV10-List message posted by: Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)>
Thanks!
It looks like the transducer is 'unmounted' in this case and just supported by the fuel hoses. I'm thinking of doing the same. Anyone with experience using a fuel hose supported Flowscan?
(do not archive)
On 3/29/2014 2:04 PM, Ben Westfall wrote:
[quote] --> RV10-List message posted by: "Ben Westfall" <rv10(at)sinkrate.com (rv10(at)sinkrate.com)>
Bill,
Mark Cooper's blog has some pics and a description of his mounting in the
similar location.
http://myrv10factory.wordpress.com/2012/12/10/red-cube-relocation-garmin-gtn
-750-tx-fixed-par100ex-music-limitations-and-afs-screen-tweaks/
-Ben
--
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aerosport1
Joined: 07 Nov 2007
Posts: 231
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| Posted: Mon Mar 31, 2014 5:19 am Post subject: Need help with FloScan re-location from tunnel to engine c |
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Bill
Here are some pictures that might help. 430 hrs and working great
Geoff Combs
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bill Watson
Sent: Sunday, March 30, 2014 4:47 PM
To: rv10-list(at)matronics.com
Subject: Re: Need help with FloScan re-location from tunnel to engine compartment
Thanks, that helps.
Regarding the 90 degree fitting; the 90degree fitting shown on your old hose is the "full flow" type according to Don(at)Airflow, and that's okay. The fitting you want to avoid is the 90 degree fitting where there is no curve. That type of fitting will impede the free flow of fuel. (I'm just repeating what Don told our class a few weeks ago).
On 3/30/2014 1:57 PM, Deems Davis wrote:
[quote]
Yes,
I went through the same thing after talking to Don (at) Airflow, I have the Floscan and "mounted " it (at) the front corner of the engine case http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04976.html. I used a mounting bracket fabbed out of alu similar to: http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04980.html. I ordered 2 new hoses to replace this: http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04978.html. The hose the connects the servo and the flow scan has a right angle fitting where it connects to the floscan. There is a caution some where about avoiding that, but the configuration works flawlessly with no fluctuations.
On Sun, Mar 30, 2014 at 9:34 AM, Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)> wrote:[quote]
--> RV10-List message posted by: Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)>
Thanks!
It looks like the transducer is 'unmounted' in this case and just supported by the fuel hoses. I'm thinking of doing the same. Anyone with experience using a fuel hose supported Flowscan?
(do not archive)
On 3/29/2014 2:04 PM, Ben Westfall wrote:[quote]
--> RV10-List message posted by: "Ben Westfall" <rv10(at)sinkrate.com (rv10(at)sinkrate.com)>
Bill,
Mark Cooper's blog has some pics and a description of his mounting in the
similar location.
http://myrv10factory.wordpress.com/2012/12/10/red-cube-relocation-garmin-gtn
-750-tx-fixed-par100ex-music-limitations-and-afs-screen-tweaks/
-Ben
--
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_________________
Geoff Combs
RV-10 QB N829GW
Flying 500 hrs
40033 |
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trigo(at)mail.telepac.pt
Guest
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| Posted: Tue Apr 01, 2014 12:47 am Post subject: Need help with FloScan re-location from tunnel to engine c |
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Geoff
I dont have the engine nearby, so I cant confirm what I am going to ask.
You installed the red cube in the fuel line between the throttle body and
the fuel spider, right? Is that fuel line included with the engine?
Im asking because it seems that fuel line is not included in the FF kit
from Vans.
Do you happen to have the specifications (diameter, lenght and fittings) of
those 2 fuel lines to which the red cube is attached to?
Regards
Carlos
From: owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Geoff Combs
Sent: tera-feira, 1 de Abril de 2014 14:15
To: rv10-list(at)matronics.com
Subject: RE: Need help with FloScan re-location from tunnel to
engine compartment
Bill
Here are some pictures that might help. 430 hrs and working great
Geoff Combs
From: owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bill Watson
Sent: Sunday, March 30, 2014 4:47 PM
To: rv10-list(at)matronics.com
Subject: Re: Need help with FloScan re-location from tunnel to
engine compartment
Thanks, that helps.
Regarding the 90 degree fitting; the 90degree fitting shown on your old hose
is the "full flow" type according to Don(at)Airflow, and that's okay. The
fitting you want to avoid is the 90 degree fitting where there is no curve.
That type of fitting will impede the free flow of fuel. (I'm just repeating
what Don told our class a few weeks ago).
On 3/30/2014 1:57 PM, Deems Davis wrote:
Yes,
I went through the same thing after talking to Don (at) Airflow, I have the
Floscan and "mounted " it (at) the front corner of the engine case
http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04976.html. I
used a mounting bracket fabbed out of alu similar to:
http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04980.html. I
ordered 2 new hoses to replace this:
http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04978.html
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Tue Apr 01, 2014 1:39 am Post subject: Need help with FloScan re-location from tunnel to engine c |
|
|
Carlos,
The cube is typically supplied by the EFIS manufacturer as part of the engine instrumentation.
Bob
Sent from my iPad
On Apr 1, 2014, at 4:45 AM, "Carlos Trigo" <trigo(at)mail.telepac.pt (trigo(at)mail.telepac.pt)> wrote:
[quote] <![endif]--> <![endif]-->
Geoff
I don’t have the engine nearby, so I can’t confirm what I am going to ask.
You installed the “red cube” in the fuel line between the throttle body and the fuel spider, right? Is that fuel line included with the engine?
I’m asking because it seems that fuel line is not included in the FF kit from Van’s.
Do you happen to have the specifications (diameter, lenght and fittings) of those 2 fuel lines to which the red cube is attached to?
Regards
Carlos
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of Geoff Combs
Sent: terça-feira, 1 de Abril de 2014 14:15
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: RE: Need help with FloScan re-location from tunnel to engine compartment
Bill
Here are some pictures that might help. 430 hrs and working great
Geoff Combs
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of Bill Watson
Sent: Sunday, March 30, 2014 4:47 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Re: Need help with FloScan re-location from tunnel to engine compartment
Thanks, that helps.
Regarding the 90 degree fitting; the 90degree fitting shown on your old hose is the "full flow" type according to Don(at)Airflow, and that's okay. The fitting you want to avoid is the 90 degree fitting where there is no curve. That type of fitting will impede the free flow of fuel. (I'm just repeating what Don told our class a few weeks ago).
On 3/30/2014 1:57 PM, Deems Davis wrote:
[quote]
Yes,
I went through the same thing after talking to Don (at) Airflow, I have the Floscan and "mounted " it (at) the front corner of the engine case http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04976.html. I used a mounting bracket fabbed out of alu similar to: http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04980.html. I ordered 2 new hoses to replace this: http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04978.html. The hose the connects the servo and the flow scan has a right angle fitting where it connects to the floscan. There is a caution some where about avoiding that, but the configuration works flawlessly with no fluctuations.
On Sun, Mar 30, 2014 at 9:34 AM, Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)> wrote:[quote]
--> RV10-List message posted by: Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)>
Thanks!
It looks like the transducer is 'unmounted' in this case and just supported by the fuel hoses. I'm thinking of doing the same. Anyone with experience using a fuel hose supported Flowscan?
(do not archive)
On 3/29/2014 2:04 PM, Ben Westfall wrote:[quote]
--> RV10-List message posted by: "Ben Westfall" <rv10(at)sinkrate.com (rv10(at)sinkrate.com)>
Bill,
Mark Cooper's blog has some pics and a description of his mounting in the
similar location.
http://myrv10factory.wordpress.com/2012/12/10/red-cube-relocation-garmin-gtn
-750-tx-fixed-par100ex-music-limitations-and-afs-screen-tweaks/
-Ben
--
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler |
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aerosport1
Joined: 07 Nov 2007
Posts: 231
|
| Posted: Tue Apr 01, 2014 6:51 am Post subject: Need help with FloScan re-location from tunnel to engine c |
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|
Carlos
If I remember correctly I took my original line and had them cut it and add
the new fittings as need and then
Cut to the new lengths.
There is a place nearby that does all types of custom hoses.
Geoff
Geoff Combs
Aerosport Modeling & Design
8090 Howe Industrial Parkway
Canal, Winchester, Ohio 43110
614-834-5227
From: owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Carlos Trigo
Sent: Tuesday, April 01, 2014 4:46 AM
To: rv10-list(at)matronics.com
Subject: RE: Need help with FloScan re-location from tunnel to
engine compartment
Geoff
I dont have the engine nearby, so I cant confirm what I am going to ask.
You installed the red cube in the fuel line between the throttle body and
the fuel spider, right? Is that fuel line included with the engine?
Im asking because it seems that fuel line is not included in the FF kit
from Vans.
Do you happen to have the specifications (diameter, lenght and fittings) of
those 2 fuel lines to which the red cube is attached to?
Regards
Carlos
From: owner-rv10-list-server(at)matronics.com
<mailto:owner-rv10-list-server(at)matronics.com>
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Geoff Combs
Sent: tera-feira, 1 de Abril de 2014 14:15
To: rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>
Subject: RE: Need help with FloScan re-location from tunnel to
engine compartment
Bill
Here are some pictures that might help. 430 hrs and working great
Geoff Combs
From: owner-rv10-list-server(at)matronics.com
<mailto:owner-rv10-list-server(at)matronics.com>
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bill Watson
Sent: Sunday, March 30, 2014 4:47 PM
To: rv10-list(at)matronics.com <mailto:rv10-list(at)matronics.com>
Subject: Re: Need help with FloScan re-location from tunnel to
engine compartment
Thanks, that helps.
Regarding the 90 degree fitting; the 90degree fitting shown on your old hose
is the "full flow" type according to Don(at)Airflow, and that's okay. The
fitting you want to avoid is the 90 degree fitting where there is no curve.
That type of fitting will impede the free flow of fuel. (I'm just repeating
what Don told our class a few weeks ago).
On 3/30/2014 1:57 PM, Deems Davis wrote:
Yes,
I went through the same thing after talking to Don (at) Airflow, I have the
Floscan and "mounted " it (at) the front corner of the engine case
http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04976.html. I
used a mounting bracket fabbed out of alu similar to:
http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04980.html. I
ordered 2 new hoses to replace this:
http://deemsrv10.com/album/Sec%20FF4%20Fuel%20System/slides/DSC04978.html
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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_________________
Geoff Combs
RV-10 QB N829GW
Flying 500 hrs
40033 |
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