ArVeeNiner
Well Known Member
I have put my fuel flow transducer in line between the mechanical fuel pump and the carb as per page 10 of this document: http://www.jpinstruments.com/700-800_FF_install.PDF
The Dynon instructions state that you need to have 6" of straight line before and after the transducer. In trying to meet this requirement, my distance between the fuel line and the exhaust was unacceptably small. I have been able to move the line to a minimum of 1 1/8" from the exhaust which is still a bit close for comfort. It I totally ignore the 6" of straight hose before and after the transducer and cut my fuel line much shorter than it is, I can increase my distance to over 2" from the heat source.
My question is, just how important is this 6" of straight line requirement to the accuracy of the fuel flow transducer?
The Dynon instructions state that you need to have 6" of straight line before and after the transducer. In trying to meet this requirement, my distance between the fuel line and the exhaust was unacceptably small. I have been able to move the line to a minimum of 1 1/8" from the exhaust which is still a bit close for comfort. It I totally ignore the 6" of straight hose before and after the transducer and cut my fuel line much shorter than it is, I can increase my distance to over 2" from the heat source.
My question is, just how important is this 6" of straight line requirement to the accuracy of the fuel flow transducer?