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Old 04-12-2012, 01:55 PM   #1
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Alternator size??

5.0 no ac or smog. What should I get? Will the stock one at orielys be fine about 99$ ?
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Old 04-12-2012, 02:28 PM   #2
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Re: Alternator size??

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Originally Posted by sixpac View Post
5.0 no ac or smog. What should I get? Will the stock one at orielys be fine about 99$ ?
Yes, as long as you don't use under drive pulleys or add any large electrical loads such as:
large wattage stereo system
electric fan
electric water pump
etc., etc.
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Old 04-12-2012, 07:09 PM   #3
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Hope you don't mind if I jump in on this one. I was planning pretty much everything you listed Trojan, so what options do I have with the pulleys?
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Old 04-12-2012, 10:33 PM   #4
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Quote:
Originally Posted by DDubs
Hope you don't mind if I jump in on this one. I was planning pretty much everything you listed Trojan, so what options do I have with the pulleys?
A good place to look is American muscle. Good rage of altinators but what amp u need ??? Good question for Trojan.
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Old 04-13-2012, 01:21 AM   #5
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Re: Alternator size??

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Originally Posted by DDubs View Post
Hope you don't mind if I jump in on this one. I was planning pretty much everything you listed Trojan, so what options do I have with the pulleys?
Quote:
Originally Posted by sixpac View Post
A good place to look is American muscle. Good rage of altinators but what amp u need ??? Good question for Trojan.
What do you mean what options with the pulleys?
Basically if you want to run them you will need a larger alternator to keep your battery properly charged.


For most purposes a 130 AMP 3G Alternator from a 94-95 Mustang will serve.


For my use I chose a 200 AMP PA Performance alternator because,
I will have:
1. An electric 2 speed fan.
2. An electric water pump.
3. Full MSD ignition system.
4. A Vortech T-Rex external fuel pump in addition to a 340lph in tank pump.
5. A gear type oil pump for pre-lube & shut down after-lube of the SC & engine.
6. Numerous digital meters to monitor pressures and temperatures.
7. A Wideband dual O2 sensor monitoring system
8. And I'm moving the battery to the rear of the car.
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Old 04-13-2012, 07:54 AM   #6
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That's exactly what I needed to know😃! I didn't know which size would be appropriate right now. Even though bigger is usually better. Really appreciate the knowledge!
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Old 04-13-2012, 07:54 AM   #7
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Re: Alternator size??

Bigger alt for moving battery? Im assuming for voltage drop as it travels down the cable? Wanting to move mine but havnt got a new alt yet, think ill get the 200amp to be safe. Want to put in elec fan an already have the msd ignition.
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Old 04-13-2012, 12:14 PM   #8
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I am running 150 amp.I have electric fan and full msd ignition.but I don't have a radio.
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Old 04-13-2012, 12:22 PM   #9
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Re: Alternator size??

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Originally Posted by Bane- View Post
Bigger alt for moving battery? Im assuming for voltage drop as it travels down the cable? Wanting to move mine but havnt got a new alt yet, think ill get the 200amp to be safe. Want to put in elec fan an already have the msd ignition.
I wouldn't buy a bigger alternator just because I was moving the battery, but yes, the length of the cables will affect the flow of electrical power. It is somewhat akin to the friction loss experienced when flowing fluids through a long section of pipe or tubing.
I got the 200 amp because of the combination of things I will be using that run on electricity.
Depending on what else you may plan to run, a 130 - 150 amp alternator may serve your purposes.
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