Can't keep my car charged

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08-11-2007, 01:05 AM

91blackmustanggt

1st Gear Member

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Join Date: Jun 2006

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Posts: 72

Can't keep my car charged

I recently installed a e303 cam and a crank underdrive pulley on my car. Now it only idles for a minute before it drains my battery. The underdrive pulley is bigger than the race pulley but smaller than the stock one. Is it worth the extra power, because I don't want 2always have my foot on the gas 2 keep the battery charged. I know I can upgrade my alterator but I don't want 2. Should I use mystock pulley?

08-11-2007, 02:38 AM

94Cobrakid16

3rd Gear Member

Join Date: Feb 2006

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Posts: 761

RE: Can't keep my car charged

sounds like you got it figured out, you either have to get a new alt or go back to the stock pulley?

08-11-2007, 05:31 AM

PRO50SC

The Rogue Mod

Join Date: Feb 2006

Location: Maryland Sucka's!!

Posts: 21,918

RE: Can't keep my car charged

Why wouldn't you wanna upgrade the alt? It's cheap and easy to do. And a great choice over the crappy stocker.

08-11-2007, 05:48 AM

ACE

4th Gear Member

Join Date: Jul 2005

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Posts: 1,213

RE: Can't keep my car charged

+1 to Pro's suggestion and are you sure the alt is good? have you checked for charging?

08-11-2007, 08:02 AM

aode08

5th Gear Member

Join Date: Oct 2005

Location: Ohio USA

Posts: 4,616

RE: Can't keep my car charged

Quote:

ORIGINAL: 91blackmustanggt

I recently installed a e303 cam and a crank underdrive pulley on my car. Now it only idles for a minute before it drains my battery. The underdrive pulley is bigger than the race pulley but smaller than the stock one. Is it worth the extra power, because I don't want 2always have my foot on the gas 2 keep the battery charged. I know I can upgrade my alterator but I don't want 2. Should I use mystock pulley?

I used a bigger alternator pulley, measure your old one, go to the yard for a bigger one.