Quote:
Originally Posted by masraum
to make things a bit easier
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Good video. I was more interested in the engine test cell, trying to see what all was in it. I didn't see how they "burned" the power. When I worked at GM I helped run a lab with six engine test cells. We used eddy current dynos to absorb the power.
I have stories.
We ran two 350s with 700R4 transmissions 17 hours a day in two of the cells, testing the transmissions. The cycle started with the engine at idle, when the program started, the actuator yanked the throttle wide open and kept it there until the dyno clocked the equivalent of 90 mph, then it would close the throttle, let it coast down a while, then force a downshift that sent the engine to the redline, run it back to 90, then let it idle to a stop. A cycle took about 2 minutes. Over and over for the whole shift.
There were also two 3800s with transmissions, testing lock-up torque converters. They ran all day too, although in not such an extreme way.
Usually there was something else in one of the cells doing something.
Five or six engines accelerating. Over and over. Out of synch. All day long. Even with the cell doors closed it didn't take long for the racket to start to get to you.
We were doing bearing tests on a 6.2 diesel when the crankshaft broke. We rented an electric jackhammer to get the engine apart.
Good times.