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#2499384 - 05/23/18 08:31 AM Nippondenso Alternator Questiion
80fbody Offline
mopar

Registered: 10/25/06
Posts: 527
Loc: Mass.
Are the Nippondenso alternators out of a 90's dodge internally regulated or do we still use the regulator on the firewall like the original alternators? Not sure how to wire the one I purchased awhile back.
_________________________
1980 RoadRunner 360,4 speed,4:10 ---------------- 1968 Dart 451/727/4:30

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#2499414 - 05/23/18 09:43 AM Re: Nippondenso Alternator Questiion [Re: 80fbody]
scratchnfotraction Offline
I Live Here

Registered: 05/29/03
Posts: 15157
Loc: Florida
mine is a denso 120 amp external regulated on the 440 truck (not sure what it is from/double groove pulley)



I have a denso mini (smaller than my denso120amp) from 88 van/double pulleys that is external regulated. not sure what amp?

IIRC they ditched the VR on firewall in 89-93

if it has a serp pully I think those are internal regulated

swing by an autozone and have them toss it on the machine and test it. that will let you know for sure.

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#2499419 - 05/23/18 09:59 AM Re: Nippondenso Alternator Questiion [Re: 80fbody]
savoy64 Offline
top fuel

Registered: 09/07/11
Posts: 1795
Loc: colorado
nope---serpentine means the computer runs it...

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#2499424 - 05/23/18 10:08 AM Re: Nippondenso Alternator Questiion [Re: 80fbody]
80fbody Offline
mopar

Registered: 10/25/06
Posts: 527
Loc: Mass.
Mine came with serpentine and v groove pulley in the box. I'll have to get some numbers off it and see if I bought a dud....
_________________________
1980 RoadRunner 360,4 speed,4:10 ---------------- 1968 Dart 451/727/4:30

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#2499716 - 05/23/18 08:53 PM Re: Nippondenso Alternator Questiion [Re: 80fbody]
volaredon Offline
pro stock

Registered: 01/25/08
Posts: 1219
Loc: ILLINOIS
the alt doesn't know or care if it is being controlled by an external VR or a computer. That same alternator was used for about 8 years, and it was regulated both ways. and serpentine pulleys can be swapped out for V pulleys and vise versa easily enough... done so more than once.

on the 91s (seems worst year for VR part of computer brain frying) vans/pickups/Dakotas, I have seen them all with the regulator wires dug out of the harness and a plain old Mopar VR wired in.

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#2499746 - 05/23/18 09:37 PM Re: Nippondenso Alternator Questiion [Re: 80fbody]
Andrewh Offline
master

Registered: 02/17/03
Posts: 7735
you can wire it up with either the dual field vr from 74 and up or ground one of the field wires and use the single field wire vr.

I have mine wired up to a single field vr and just ran a ground wire to the plug.

the plug was the hardest thing to get. had to go to a yard to find one that wasn't clipped off.

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