I did a first fuel flow test tonight. I disconnected the fuel hose from the carburetor and placed it in a bucket (photo 2). I had the bucket marked at 1 gallon.
I opened the fuel valve by pushing in the rod I have connected to the valve (photo 1), and timed how long it took to fill the bucket to 1 gallon.
It took 82 seconds in the parked position. If anyone wants to check my math:
- 1 gal came out in 82 seconds - Flow(GPH) = 3600 X #Gallons/#Seconds - 3600 x (1/82) = 43.9 gph
At 0.55 lbs per HP, the Aerovee should burn: - 0.55 lbs x 80 hp = 44 lbs/hour - 44/6 lbs (avgas) = 7.33 gph (wide open throttle)
FAA says design for 150%, so... - 7.33 ghp x 150% = 11 gph
So at 43.9 gph I think I have enough fuel flow ;)
Next I need to check with a steep (25 deg) climb angle.
Fuel valve: push for fuel flow.
Fuel line removed from carburetor, to fill graduated bucket.