Maximum fuel flow for a Lycoming 0320-H2AD?

[gyrotyro]

Thanks folks for the help with torque limits. My next question is, can someone tell me how I can find out what the maximum fuel flow is for a Lycoming 0320-H2AD engine?

This is fitted in an RV-6A.

I am doing static fuel flow tests to measure the fuel flow at full throttle is within limits.

Thanks.

 

[drill_and_buck]

Details can be found in AC90-89a.

Excerpt below....


(3) Since the fuel consumption of most
modern engines is approximately .55 pounds per
brake horsepower per hour for a 100 horsepower
engine, the test fuel flow should be 82.5 pounds (13.7
gallons) per hour for gravity feed, or 68.75 pounds
(11.5 gallons) per hour for a pressurized system. The
pounds per hour divided by 60 equals 1.4 pounds
and 1.15 pounds per minute fuel rate respectively.

NOTE: Formula for fuel flow rate gravity
feed is .55 x engine horsepower x 1.50 =
pounds of fuel per hour divided by 60 to
get pounds per minute, divided by 6 to get
gallons per minute.

For a pressurized system, substitute 1.25 for 1.50 to determine fuel flow rate

 

[rjcthree]

Lycoming manual for -76 series

Lycoming manual 60297-22 states 13gph for 100% rated power.

Send me your email address and I'll send you the pdf manual.

Rick 90432