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Re: The great alternator question...
[Re: codfish]
#125419
09/27/08 07:12 PM
09/27/08 07:12 PM
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Joined: Jan 2004
Posts: 3,001
Coram, NY
Pool Fixer
master
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master
Joined: Jan 2004
Posts: 3,001
Coram, NY
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Quote:
Quote:
I've had my denso on my big block for over 6 years. it's a 130amp out of an 02 ram van. bolted to stock big block brackets and I added a 4g wire from alt to pos stud on starter relay. I also cleaned the bulkhead connector real good and bypassed the amp gauge. best money I have ever spent on the car.
you can get cheap denso's on ebay all day long
OK.
So you ran a new wire from the alt to the starter relay.
Did you leave the original wire hooked up as original? Or does it have to be removed for this upgrade to be effective?
And does anyone know if the Denso, or later chrysler alternator will work with my new , March brackets on my 440?
thanks
codfish
i left all other stock wiring in place. I did have to add another wire for the field hookups. I went from single field reg to dual field.
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Re: The great alternator question...
[Re: AndyF]
#125420
09/27/08 08:44 PM
09/27/08 08:44 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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I developed the Denso swap to solve those problems. The stock Mopar alternators are very lazy at low speeds. The Denso alternator solves all the problems and it bolts on with very easy wiring mods. I switched my car over a long time ago and would never go back to a Mopar alternator.
Andy, Do you have any brackets to low mount the alternator to clear an electric water pump?
I have a Denso 130 Amp external reg alternator from a newer truck, and I am going to run electric water pump, electric fuel pump, and cooling fans. Wiring is not a problem, put my EE degree to work, just looking for brackets so I don't have to fab them myself?
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Re: The great alternator question...
[Re: codfish]
#125421
09/28/08 08:43 AM
09/28/08 08:43 AM
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Joined: Jan 2007
Posts: 7,664
IN
ahy
master
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master
Joined: Jan 2007
Posts: 7,664
IN
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Quote:
Quote:
I've had my denso on my big block for over 6 years. it's a 130amp out of an 02 ram van. bolted to stock big block brackets and I added a 4g wire from alt to pos stud on starter relay. I also cleaned the bulkhead connector real good and bypassed the amp gauge. best money I have ever spent on the car.
you can get cheap denso's on ebay all day long
OK.
So you ran a new wire from the alt to the starter relay.
Did you leave the original wire hooked up as original? Or does it have to be removed for this upgrade to be effective?
And does anyone know if the Denso, or later chrysler alternator will work with my new , March brackets on my 440?
thanks
codfish
When you run a wire from the alternator to starter relay OE wiring needs to stay in place to feed power to the switches ect. in the pass compartment. The later model higher output OE "square back" alternators will fit older model brackets. The Big Denso can fit with stock brackets but its real close to or hits the head unless you get the new brackets designed by Andy F (Mancini sells them). I believe the small Denso needs different brackets designed by Andy F (Mancini).
It doesn't sound like your application needs a jumbo alternator - A late model high output "squareback" ('78 Diplomat parts store replacement rated 78 amps), a Powermaster squareback (75-80 amps) or the small Denso would fill the bill. The Denso would have the best low RPM performance and may be more durable. It also costs more and requires bracket modifications.
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