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Alternator Upgrade Questions

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WesternRed View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WesternRed Quote  Post ReplyReply Direct Link To This Post Topic: Alternator Upgrade Questions
    Posted: Sep/10/2018 at 9:16am
Looking to upgrade the alternator on my 360 since the old Motorola one from 1971 doesn’t seem to be cutting it.

I am running fuel injection and associated ancillaries, dual thermo-fans and soon to be CSR electric water pump.

Thinking around 140 Amps and internally regulated would be the go.

What are people using and how do you have it mounted. Doesn’t look like the factory bracketry will work with the CSR pump.

This is primarily for drag racing so lots of battery draining short runs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BrotherBamc Quote  Post ReplyReply Direct Link To This Post Posted: Sep/10/2018 at 10:36am
http://theamcforum.com/forum/motorcraft-alternator-upgrade_topic39960_post363799.html?KW=#363799

Check this thread out..
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WesternRed View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WesternRed Quote  Post ReplyReply Direct Link To This Post Posted: Sep/10/2018 at 5:41pm
Good info there.

Looks like it is a chrome Aeroflow brand  a GM/Delco 120 Amp unit then, pretty much the cheapest thing available on Aussie eBay without getting into used parts. Should get the job done.

The only other thing i want to do is to hook up a relay to the ignition terminal on the starter solenoid to turn off the thermo-fans while the engine is cranking to save a bit of juice.

Oh, and upgrade to a mini-starter.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote vinny Quote  Post ReplyReply Direct Link To This Post Posted: Sep/11/2018 at 11:21am
A Delco cs130 from an 89 Pontiac Safari is an easy install. By cutting an inch off the back of the pivot base it will mount the same as the Motorola. 

Edited by vinny - Sep/11/2018 at 11:25am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WesternRed Quote  Post ReplyReply Direct Link To This Post Posted: Sep/11/2018 at 7:39pm
Pretty sure the one I ordered is an updated version in the 10SI case and will do one or three wire hookup as needed. With the electric water pump, I won't be able to run the Motorola brackets, so will have to make something up anyway.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WesternRed Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2018 at 9:17am
Just to close this out, got the alternator mounted up today:



Ha ha, only kidding that was just a quick mock up to work out what I needed, this is the finished job:


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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2018 at 9:27am
Ha! sockets make great spacers, plus they are chromed to match.

Looks nice and clean, like new even.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WesternRed Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2018 at 9:36am
Never mind the sockets, you should try finding a 7" long x 7/16" UNC bolt on a public holiday.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 304-dude Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2018 at 9:39am
Originally posted by WesternRed WesternRed wrote:

Never mind the sockets, you should try finding a 7" long x 7/16" UNC bolt on a public holiday.  


Ah, that I understand... ended up using a head stud for my custom setup.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pwrslide Quote  Post ReplyReply Direct Link To This Post Posted: Sep/25/2018 at 3:56pm
Originally posted by WesternRed WesternRed wrote:

Good info there.

Looks like it is a chrome Aeroflow brand  a GM/Delco 120 Amp unit then, pretty much the cheapest thing available on Aussie eBay without getting into used parts. Should get the job done.

The only other thing i want to do is to hook up a relay to the ignition terminal on the starter solenoid to turn off the thermo-fans while the engine is cranking to save a bit of juice.

Oh, and upgrade to a mini-starter.


 With that much amperage you will want to consider running power to a new fuse panel to run the hi current draw accesories. I am running the same style 10si (100 amp) internal regulated. I ran a #6 wire to the  relay and then to a Painless wiring  junction block which feeds the 10 circuit underdash Painless fuse block and also the factory feed to the original fuse panel. The junction block makes it nice as I ran out of room on the relay post as you can see as the Robb MC starter feed needs to be on the hot side of the relay


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