1. Power Tech 4050 Engine Performance Activities
R. Bortignon

2. Power Absorption Unit

4. Torque Torque = Force X Distance (from the fulcrum)
length of lever on the dyno is .525’

5. Dyno Controls Pressure Gauge (lbs.) Throttle Lever Tachometer
Load Control

6. Petter Diesel

7. Sachs Wankel

8. Horsepower Power: the rate at which work is done
Power = work (in ft. lbs.)
time
1 Horsepower = 33,000 ft. lbs. or 550 ft. lbs.
1 minute second
BHP = 2π X L X P X N
33,000
or simplify by removing constants…
2π X L X P X N = P X N
33, ,000
L = lever arm length in feet
P = force in pounds
N = crankshaft rpm

9. Torque & BHP Graph (Typical)