Service Manual

GENERAL INFORMATION 1-4
PERFORMANCE CURVES
FB46OV WOT PERFORMANCE (SAE J607a)
TORQUE
kgm ft- Ibs
2.6
2.4
18
gr/hp.hr Ibs/hp.hr
300
2000 3000 3600 4000
ENGINE SPEED r.p.m.
The horsepower ratings shown herein are established in accordance with Society
of Automotive Engineers Code J607a.
Power curves are corrected to standard conditions of
sea level barometer and
temperature of 15.6°C (60"
F) and are developed from laboratory test engines
equipped with standard air cleaner and muffler.
The "Maximum
B.H.P." curve represents performance of laboratory test engines.
Production engines will develop not
less than 95% of the "Maximum B.H.P."
when tested after run-in to reduce friction and after cleanout of combustion
chamber, with
valves, carburetor and ignition system adjusted to laboratory
standards.
Engine power will decrease
3.5% for each 305m (1,000 ft.) above sea level and 1%
for each 5.6°C (10°F) above standard temperature of 15.6°C
(60°F).