Originally Posted by pgrily
What should battery voltage be at during upper rpms under load during a pull? I'm still getting stuttering in the upper rpms (~5900+). Last log, the battery voltage was getting down as low as 12.16v around 6500 rpm. I've tried switching the coil packs and the spark plugs are all good and gapped at .026. Seems like the stuttering is related to my battery voltage dropping under load.
I took a log in my brother's e85'd WRX and his battery voltage only dipped down to 13.2 under load in the upper RPM's. Guess I'll have to try a new/different alternator at this point as I'm running out of possibilities.
Does anyone know exactly what the battery voltage option in Romraider is measuring?
Edit--Both pulls were done with no accessories/lights on.