READ THIS: This data was copied from a chart obtained by FAX from Lycoming, and I make no claims as to its accuracy. Lycoming told me that the settings are generic, and that the proper settings will vary from airframe to airframe. Therefore, this chart should NOT be used in lieu of an airframe manufacturer's recommendations. Any use of this chart constitutes implied responsibilty of the user for verifying the accuracy and applicability of the information contained herein.

FUEL AND POWER CHART - LYCOMING O360-A SERIES, -C SERIES

Press.
Alt.
1000
Feet
Std.
Alt.
Temp.
°F
100 HP -- 55% Rated
Approx. Fuel 7.8 Gal/Hr

RPM & Man. Press.
117 HP -- 65% Rated
Approx. Fuel 9 Gal/Hr.

RPM & Man. Press.
135 HP -- 75% Rated
Approx. Fuel 10.6 Gal/Hr

RPM & Man. Press.
    2100 2200 2300 2400 2100 2200 2300 2400 2200 2300 2400
SL 59 20.9 20.3 19.8 19.3 23.3 22.7 22.1 21.5 25.1 24.5 23.9
1000 55 20.7 20.1 19.6 19.1 23.1 22.4 21.8 21.3 24.8 24.2 23.6
2000 52 20.4 19.8 19.3 18.8 22.8 22.1 21.6 21.0 24.6 24.0 23.4
3000 48 20.2 19.6 19.1 18.6 22.5 21.9 21.3 20.8 24.3 23.7 23.2
4000 45 19.9 19.3 18.9 18.4 22.3 21.6 21.1 20.6 24.0 23.5 22.9
5000 41 19.7 19.1 18.7 18.2 22.0 21.4 20.9 20.3 23.8 23.2 22.7
6000 38 19.5 18.9 18.4 18.0 21.8 21.1 20.6 20.1 FT 23.0 22.5
7000 34 19.3 18.7 18.2 17.8 21.5 20.9 20.4 19.9   FT 22.2
8000 31 19.0 18.4 18.0 17.6 21.3 20.7 20.2 19.7 - - FT
9000 27 18.8 18.2 17.8 17.4 FT 20.4 20.0 19.5      
10000 23 18.6 18.0 17.6 17.2 - FT 19.8 19.3      
11000 19 18.4 17.8 17.4 17.0 - - FT 19.1      
12000 16 18.2 17.6 17.2 16.8 - - - FT      
13000 12 FT 17.4 17.0 16.7              
14000 9 - FT 16.8 16.5              
15000 5 - - FT 16.3              

To maintain constant power, correct manifold pressure approximately 0.17" Hg for each 10° F variation in carbeurator air temperature from standard altitude temperature. Add manifold pressure for air temperatures above standard, subtract for temperatures below standard