I have a 2001 Camaro with a V6 3.8 engine

Yesterday, I change the stock alternator with a high output alternator that puts out 200a. The problem is that at idle, the alternator is not charging because of low rpms, at idle the car works at 700 rpms and it wont charge. Once I hit the gas and I pass 900-1000 rpms, it charges fine at 14.3 volts.

What can I do to fix this problem? I also have not changed the cable that goes to the battery from the alternator with a thicker one. Can this cause a problem?

I was also thinking about changing the regulator on the high output alternator with the one from the stock one, and then might it charge more at low rpms?? Is this possible?

Thanks.

 

A lot of H.O. alternators don't turn on until 800+ rpm, once it's on it should stay on until you shut the engine off.
IMO, just blip the throttle a little at start-up to turn it on.
I'd also install at least a 2/0 gauge alt. to batt. cable, the factory cable is to small to get any really benefit from the H.O. alt..
http://www.powermastermotorsports.com/charge_wires.html