Re: 60amp to 120amp Denso swap with AREngineering bracketry
[Re: TWAMONACO]
#2355509
08/17/17 03:37 PM
08/17/17 03:37 PM
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Joined: Jan 2008
Posts: 2,592 None
71rm23
master
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master
Joined: Jan 2008
Posts: 2,592
None
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I made an error when I ordered the AREngineering 60 amp Denso alternator bracketry kit as a 60 amp alternator will not provide enough amperage for my car (440 engine).
What is the experience on using the AREngineering bracketry with a higher output (120 amp) Denso style alternator? Part numbers would be appreciated
Thanks For part numbers, go to ARE's site. Either order from there or there is dealers that sell his stuff
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Re: 60amp to 120amp Denso swap with AREngineering bracketry
[Re: TWAMONACO]
#2355984
08/18/17 12:11 PM
08/18/17 12:11 PM
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Joined: Oct 2005
Posts: 9,031 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 9,031
Ontario, Canada
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I might put one on my own car though since it was a cool setup I'm wondering what makes an alternator "a cool setup" !!!
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Re: 60amp to 120amp Denso swap with AREngineering bracketry
[Re: TWAMONACO]
#2356282
08/18/17 10:54 PM
08/18/17 10:54 PM
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Joined: Dec 2004
Posts: 10,607 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,607
Rittman Ohio
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Thanks Andy - the car is bone stock, no fancy stereo, A/C or electric fuel pump, just upgrading to 6AL ignition (which calls for 0.9 Amps per 1000RPM) and an electric cooling fan which calls for 22 peak amps I use a 60 amp Denso alt that I snagged off of a cash for clunkers 89 Yota 4 cylinder pick-up on my car and it works perfectly. Even when I was running an electric water pump,fan,fuel pump,and an MSD 6AL and it never skipped a beat even at 6000 RPM all the candles stay lit. The internally regulated Denso alt maintains a steady 14.5 volts even at idle with everything on so in my opinion you do not need anything with more amps. But hey it's your money What do I know after over 30 years working on Toyota cars and trucks Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: 60amp to 120amp Denso swap with AREngineering bracketry
[Re: TWAMONACO]
#2356582
08/19/17 02:35 PM
08/19/17 02:35 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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As Skeptic says, undersized alternators can be an issue. Oversized not so much. An alternator is controlled by the regulator so it will only put out enough to match demand until it hit's it's limit.
So, if you have a 120A alternator in an 80A system you'll be fine and have a 40A reserve, if you have a 60A alternator in a 80A system you will be draining your battery trying to support the load.
However, if you are going to run a 120A alternator you had best make sure your wiring and protection matches.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: 60amp to 120amp Denso swap with AREngineering bracketry
[Re: Supercuda]
#2356841
08/19/17 10:27 PM
08/19/17 10:27 PM
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Joined: Dec 2004
Posts: 10,607 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,607
Rittman Ohio
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Well I've had the same 60 amp alternator and battery in my car for over 5 years so obviously some of the above information is incorrect. I suspect the Mopar based externally regulated Denso alternator is what some of this information is based on. Toyota has used the same basic 60 amp alternator on their vehicles with dozens of electrical systems running constantly for over 200,000 miles with the original battery and alternator. The way systems are wired with relays and carful wire selection has more to do with how many amps you need from your alternator. Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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