145 amp truck alternator.........question - LS1TECH - Camaro and Firebird Forum Discussion



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145 amp truck alternator.........question

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Old 12-06-2017, 02:47 PM   #1
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Default 145 amp truck alternator.........question

Right now I have a stock style PepBoys alternator. It runs my car and all accessories just fine. 1,000 watt amp and 12" woofer is all aftermarket.

But I'm installing TWO extra BIG pusher cooling fans to my condenser and TWO BIG pusher fans to my radiator, and twin big *** fuel pumps. So I need a little better battery soon.

IF.....I install the 145 truck alternator now, with my "basically" current factory set up....will I have any problems with over-charging or any other issue....until those items are installed...?

Or can I drive around a long time with no issues at all using a 145 amp alt.....?

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Old 12-06-2017, 03:04 PM   #2
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Alternators don't "push" current... they provide current as required by the attached devices (battery, engine, electronics, etc.) up to their rated output. So you could install a 500A alternator and it would still only output what is necessary for your configuration - no need to worry about over charging. The existing devices will draw what they need and you'll have some extra capacity available to add more devices without overwhelming the alternator.
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Old 12-06-2017, 03:12 PM   #3
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Originally Posted by WhiteBird00 View Post
Alternators don't "push" current... they provide current as required by the attached devices (battery, engine, electronics, etc.) up to their rated output. So you could install a 500A alternator and it would still only output what is necessary for your configuration - no need to worry about over charging. The existing devices will draw what they need and you'll have some extra capacity available to add more devices without overwhelming the alternator.
Cool thanks....

I was told 2005 Escalade alternator will fit our F-Bodys.....is that the correct year 145 amp truck alternator?

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Old 12-07-2017, 03:34 AM   #4
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everything you need to know about truck alts...

https://ls1tech.com/forums/generatio...failure-s.html
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Old 12-08-2017, 11:18 AM   #5
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everything you need to know about truck alts...

https://ls1tech.com/forums/generatio...failure-s.html
Yup.....good thread. I think I'm all straight now.....

Thanks....

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