My car did something very strange on the dyno this morning. It sits right around 13 volts idling, and as the rpms climb the voltage drops to low 12s. Also, it ran very rich as the volts dropped making terrible power. We suspected the alternator was going bad, since it should be making at least 14v at wot. The battery is brand new. We even checked the old logs and on every other dyno pull we have ever done it was over 14v. Heres where it gets weird and I get confused.....
The alternator tested excellent on a bench test, making over 14 volts. The belts felt pretty tight and the car was making a full 10lbs of boost, so they couldnt have been slipping right? Well then how the hell am i losing voltage when the alternator is on the car?
:headsmash:
The alternator tested excellent on a bench test, making over 14 volts. The belts felt pretty tight and the car was making a full 10lbs of boost, so they couldnt have been slipping right? Well then how the hell am i losing voltage when the alternator is on the car?
:headsmash: