Hey everyone, I’m planning to install two Pioneer 10-inch subs (800W RMS and 3000W max each). So, that’s 1600W RMS and 6000W max when running in a 1-ohm setup. To get the most out of them, I need to upgrade my car’s electrical system. I want to add a second high-output alternator for the audio gear, while keeping the factory alternator running the usual car stuff. But here’s the issue.
I drive a 2003 Chevy Impala with a 3.4L V6. They don’t make an aftermarket bracket for a second alternator for my vehicle. I think it’s because of space and the layout of the engine bay. I’m running into these same space issues.
For anyone with mechanical experience, what’s your advice? What’s the best way to make this work? Can I just add a second belt and pulley with a tensioner, like the factory alternator, and create a custom bracket? Or is there a better, easier way? I need it to fit without interfering with the hood closing. I don’t mind if it’s a tiny bit off, as long as it fits. Let me know your thoughts and suggestions. I’d appreciate any help!
Why not just replace the factory alternator with a higher output one and run everything off that? 1600W RMS isn’t really that much. What you’re planning might just cause extra problems. If you really need more power later, you could just add a second battery instead.
@Keller
That’s the plan actually — I want to add a second battery, but I’m worried about parasitic draw. I guess I could get two identical AGM batteries and that might solve the issue, right?
Yan said: @Keller
That’s the plan actually — I want to add a second battery, but I’m worried about parasitic draw. I guess I could get two identical AGM batteries and that might solve the issue, right?
Yeah, if you keep them separate, just add an isolator relay. What you’re trying to do with two alternators really isn’t necessary, especially if you go with two batteries.
Just to add: I also have a 1000W amp running my door speakers (6x9s and 6x5.5s). So, with everything, my total max output is around 7000W give or take.