SonexBuilders.net

Hoping to learn something ...

Considering adding a fuel flow readout and looking at transducers. I have the MGL Flight 2 and I'm looking at the Gold Cube FT-90 as opposed to the Red Cube FT-60 as the Gold Cube is said to have "considerably less pressure drop than other units" ...

http://buy-ei.com/wp-content/uploads/2013/06/Info-FT190.pdf

I know Tony Lewis has been using the Red Cube (FT-60) without any reported issues in his gravity fed Jabiru 3300. But if the FT-90 gets the same accuracy with less pressure drop it sounds like it would be a better option for a gravity feed system.

Anyone use a flow transducer with the MGL Flight 2 instrument?

Thoughts, opinions, experience to share?

Help appreciated,

Dale
N319WF

I use the RedCube and did a full fuel flow test with it and it had plenty of flow.

http://www.n716wx.hicke.com/index.php/uploads/Waiex-Builders-Log/FuelFlowTest

Ft60 here. Actually on my second. The first one failed at 100 hours for unknown reasons.

If I disconnect the fuel line at the carb, I show 25 gal per hour flow rate.

Actually, the FT-60 page has yhe exact same verbage. The difference appears to be the accurate range of each sensor, the FT-90 accurate down to 2.0 gph minimum, the FT-60 down to 0.6 gph. For our little motors I suspect the lower range would be more useful.

GordonTurner wrote:Actually, the FT-60 page has the exact same verbiage. The difference appears to be the accurate range of each sensor, the FT-90 accurate down to 2.0 gph minimum, the FT-60 down to 0.6 gph. For our little motors I suspect the lower range would be more useful.

Hi Gordon,

After further review I find that you are correct that the verbiage is the same for both. The pressure drop is different but with so many using the FT60 (Red Cube) successfully, even in gravity feed systems, that looks like what I need.

The other good news is that the red cube is way cheaper than the gold cube. Seems like a good project to put on the list for the winter.

Best,

Dale
N319WF

We don't need no stinkin' cubes...