March Underdrives and 2 12" Subs, Charging Problems? - Ford Mustang Forum
 
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post #1 of 11 (permalink) Old 01-05-2007 Thread Starter
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March Underdrives and 2 12" Subs, Charging Problems?

I've got two Pioneer 12" subs and I'm looking at buying some march underdrives (alternator, crank, and water pump) and I'm wondering if I'm gonna have problems with my alternator charging? Also, they're steel. I know the aluminum ones are better, but they're cheap and I can get them. Is there a big difference between the steel and aluminum? I know they weigh more, but what else?


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post #2 of 11 (permalink) Old 01-10-2007
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don't recommend if u have sound in your car, i have the original 460mach and it was making charging problems so i had to take the alternator pulley away..


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post #3 of 11 (permalink) Old 01-12-2007
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I was having charging prob w/ my underdrives so I called March & got a smaller pulley & now Im all good.It was that easy

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post #4 of 11 (permalink) Old 01-12-2007
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Quote:
Originally Posted by spy23714 View Post
I've got two Pioneer 12" subs and I'm looking at buying some march underdrives (alternator, crank, and water pump) and I'm wondering if I'm gonna have problems with my alternator charging? Also, they're steel. I know the aluminum ones are better, but they're cheap and I can get them. Is there a big difference between the steel and aluminum? I know they weigh more, but what else?
To help with the power drain from your stereo, you can buy a 1 Farad Capacitor and hook it up to your amp. This is plenty of energy storage capacity for two powerful amps. They are very easy to hook up, and you can buy one at any stereo shop, best buy, ebay, and sometimes Wal-Mart for around 80-110 bucks.
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post #5 of 11 (permalink) Old 01-14-2007
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Wont the capaciter take too much away from the battery during its charge up cycle though??
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post #6 of 11 (permalink) Old 01-15-2007
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Wont the capaciter take too much away from the battery during its charge up cycle though??
Not to my knowledge. I have seen people use them without problems on many stereo installs. If you have ever seen someone who's headlights dim when the bass thumps, they need a power cap. I have installed them on vehicles like this, only to see the dimming problem disappear. You will also get better performance out of your amp.
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post #7 of 11 (permalink) Old 01-15-2007
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ya thats true i just thopught maybe it would just drain too much thats all
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post #8 of 11 (permalink) Old 01-16-2007
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Could always upgrade the Alternator, as well. Buy something that gives you more charge and you'll never worry about charging problems again. I know I never did.

-YB

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Died March 18, 2009

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post #9 of 11 (permalink) Old 01-16-2007
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you can also buy a dry cell battery they are basicaly 6 1frad caps in a battery form. I hooked one up in the back of my 5.0 and had 3 amps and 4 10 inch JL's giong off of it using the oem alternator. you hook it up just like a cap and run your distribution block off that. it works good because caps charge fast and the energy that restores them comes from the battery so it doesn't put half the load on the alternator
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post #10 of 11 (permalink) Old 01-17-2007 Thread Starter
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How many amps does a oem alternator put out?

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I think an oem puts out 70 or 80 i think. I also have under drive pulleys and had a problem charging not March i have another brand and when i read my papers again it says to help in charging keep rpm's 1500 or more.

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