---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Sun 11/14/04: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:38 PM - GRT fuel flow sendor accuracy (jim & terri truitt) 2. 10:18 PM - Dynon remote compasses (John Porter) ________________________________ Message 1 _____________________________________ Time: 07:38:22 PM PST US From: jim & terri truitt Subject: RV8-List: GRT fuel flow sendor accuracy --> RV8-List message posted by: jim & terri truitt I have an 8A 180 horse carb with the GRT fuel flow sensor and an EIS. It's mounted on the engine side of the firewall, no heat shield, and with 150 hours, no problem with it working. Now, for accuracy. The installation instructions specifies a five inch length of straight fuel line before the sensor and a one or two inch straight line after the sensor. We installed mine according to instructions. Then you have to fly several tanks of fuel to figure out the flocal setting. Mine always shows a higher fuel consumption than actual (that's better than showing more fuel than actual). Mine shows about 3 gallons less than actually used per tank full. Not too bad, but I wish it were more acurate than that. I noticed early on that the fuel flow reading would always go up with the fuel pump on, and go down when I turned it off. I spoke to Greg (GRT) about this and he stated I needed to install a dampener in the line before the sensor. I have all metal fuel lines and this is part of the problem with the pulses from the pump causing the variations. As yet, I have not installed the dampener but instead use the electric fuel pump as little as possible. I keep in mind the difference in flow readings and actual use that I know is there (it has been pretty consistent). I am curious to know if the dampener will also produce more acurate flow readings overall, and then bring the "fuel remaining" reading more in line with actual use. Too busy flying I guess or I'd have it done. I also have Van's float type fuel gages. Mine are very accurate when sitting on the ground engine off. They are pretty accurate in the air, although they move around a bit when flying, even in smooth air (expected of course). I originally wanted the flow meter as a more accurate back up to the gages, and I'm still glad I got it. But I have come to trust the Vans gages and I haven't been disappointed yet. I use the fuel gages and the "fuel remaining" reading of the EIS as a cross check on each other. The other thing I like is seeing the flow rate go down when I lean. It gives me a sort of sense of accomplishment, like I'm saving some money, but at nearly 3 bucks a gallon, the fuel bills still sting just the same. Oh well. You know what a hobby is? Something you spend more time and more money on than you should, but you love it anyway. Bottom line - I like the EIS flow meter and the Vans gages. _-===================================================================== _-_-= -- Please Support Your Lists This Month -- _-= (And Get Some AWESOME FREE Gifts!) _-_-= November is the Annual List Fund Raiser. Click on the _-= Contribution link below to find out more about this _-= year's Terrific Free Incentive Gifts provided by the _-= The Builder's Bookstore www.buildersbooks.com! _-_-= List Contribution Web Site _-_-= http://www.matronics.com/contribution _-_-= Thank you for your generous support! _-= -Matt Dralle, List Admin. _-_-===================================================================== _-= - The RV8-List Email Forum - _-= This forum is sponsored entirely through the Contributions _-= of List members. You'll never see banner ads or any other _-= form of direct advertising on the Matronics Forums. _-===================================================================== _-= List Related Information _-= Post Message: rv8-list@matronics.com _-= UN/SUBSCRIBE: http://www.matronics.com/subscription _-= List FAQ: http://www.matronics.com/FAQ/RV8-List.htm _-= Search Engine: http://www.matronics.com/search _-= 7-Day Browse: http://www.matronics.com/browse/rv8-list _-= Browse Digests: http://www.matronics.com/digest/rv8-list _-= Live List Chat: http://www.matronics.com/chat _-= Archives: http://www.matronics.com/archives _-= Photo Share: http://www.matronics.com/photoshare _-= List Specific: http://www.matronics.com/rv8-list _-= Other Lists: http://www.matronics.com/emaillists _-= Trouble Report http://www.matronics.com/trouble-report _-= Contributions: http://www.matronics.com/contribution _-===================================================================== ________________________________ Message 2 _____________________________________ Time: 10:18:44 PM PST US From: "John Porter" Subject: RV8-List: Dynon remote compasses --> RV8-List message posted by: "John Porter" Hi, Where are guys putting the Dynon remote compasses? I have seen in the tail and on the wing access panels but haven't heard of how well they work. Anyone out there with a system working on a -8? Thanks, John Porter _-===================================================================== _-_-= -- Please Support Your Lists This Month -- _-= (And Get Some AWESOME FREE Gifts!) _-_-= November is the Annual List Fund Raiser. Click on the _-= Contribution link below to find out more about this _-= year's Terrific Free Incentive Gifts provided by the _-= The Builder's Bookstore www.buildersbooks.com! _-_-= List Contribution Web Site _-_-= http://www.matronics.com/contribution _-_-= Thank you for your generous support! _-= -Matt Dralle, List Admin. _-_-===================================================================== _-= - The RV8-List Email Forum - _-= This forum is sponsored entirely through the Contributions _-= of List members. You'll never see banner ads or any other _-= form of direct advertising on the Matronics Forums. _-===================================================================== _-= List Related Information _-= Post Message: rv8-list@matronics.com _-= UN/SUBSCRIBE: http://www.matronics.com/subscription _-= List FAQ: http://www.matronics.com/FAQ/RV8-List.htm _-= Search Engine: http://www.matronics.com/search _-= 7-Day Browse: http://www.matronics.com/browse/rv8-list _-= Browse Digests: http://www.matronics.com/digest/rv8-list _-= Live List Chat: http://www.matronics.com/chat _-= Archives: http://www.matronics.com/archives _-= Photo Share: http://www.matronics.com/photoshare _-= List Specific: http://www.matronics.com/rv8-list _-= Other Lists: http://www.matronics.com/emaillists _-= Trouble Report http://www.matronics.com/trouble-report _-= Contributions: http://www.matronics.com/contribution _-=====================================================================