lalojamesliz Posted April 25, 2012 Report Share Posted April 25, 2012 hey guys, i bought a mechman alt for my car that is a 6 phase and puts out a max of 171 amps around a month ago or less. i relocated the battery to the rear cargo area (hatchback) i have done "the big 3" done to my car and have a 1 awg cable going from my battery (+) to the alt and a 2 awg mechman cable going from the (-) of the battery to the casing of my alternator along with another 1 awg cable grounding it also inn the engine bay. my question is, when i start my car the voltage starts at 14.2V and once i drive around a little while the voltage drops to 13.6 at idle with nothing on or with everything on (radio,lights,car,ac fan) is this voltage normal? my car idles at 1k rpm i have a redtop optima with a resting voltage of 12.6V (after 2 days of sitting) and its a larger one. i think 800 or 1000 cca. Quote Link to comment Share on other sites More sharing options...
MECHMAN Posted April 25, 2012 Report Share Posted April 25, 2012 Voltage dropping at idle into the 13.4-13.8v range is normal. Your alternator is still charging, just not at it's full output. Full output on that unit will be reached at 1700-1800rpm. Quote 1-888-MECHMAN www.Mechman.com [email protected] Link to comment Share on other sites More sharing options...
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