Barracuda Challenger Forum

Author Topic: Internally regulated 90amp Denso alt, does it exist  (Read 669 times)

Offline leanburn

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Internally regulated 90amp Denso alt, does it exist
« on: December 30, 2016 - 10:36:32 am »
 I'm going to convert to a Denso unit. I'm considering going with the internally regulated but can only find them in 60amp. Is there any 90 amp that have v belt ?




Offline 70chall440

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #1 on: December 30, 2016 - 06:58:03 pm »
doubt that there are any with a V belt, however Denso V belt pulleys are plentiful so that should not be a problem.
Current Mopar
70 Challenger RT 440-6, 73 Cuda (under const)
05 Durango, 99 Dakota, 01 Ram 4x4, 14 2500 4X4, 10 PCP Challenger RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR, 61 Jeep FC170
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline Chris Pauluk

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #2 on: February 23, 2017 - 07:25:49 am »
I believe 1988 and up Chrysler front wheel drives have the 90amp densos..     
You could always try a 1990 Dodge Shadow ES on rockauto.com to see if that works or a 1991 Dodge Daytona ES as well.. 
All of that stuff would be internally regulated..   

Not sure on pulley interchangeability..       You might have to have a stock pulley modified.. 
Chris Pauluk
Eagan Minnesota
1973 Plymouth Cuda 340 4spd (70 AAR clone'ish) bought it that way..


Online msbaugh

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #3 on: February 24, 2017 - 03:11:18 pm »
Why do you want internally regulated? Are you wanting to eliminate the VR on the firewall and just run 1 wire?  You can convert any of the mopar or aftermarket 3 wire alternators to 1 with a small VR that will bolt onto the alternator itself.  I did this and have had many trouble free miles.  Let me know if you're interested I'll try to find the link, might open up you selection.

Online GoodysGotaCuda

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #4 on: February 24, 2017 - 03:23:41 pm »
I think I'm buying the 95a Powermaster for my Warlock. Direct replacement and internally regulated.


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Offline Mpdlawdog

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #5 on: February 27, 2017 - 02:09:04 pm »
I think I'm buying the 95a Powermaster for my Warlock. Direct replacement and internally regulated.


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Ok so I have to ask because Im a dummy when it comes to this...sorry if this is a stupid question..(my 68 charger I had almost caught fire thanks to the old set up so Im not going to risk the challenger)...Im going to by pass the amp guage and go with a volt gauge by doing the alt to battery post/rely "upgrade".....does the volt gauge get wired like the amp gauge?  also what alt do you guys suggest?  What changes if the alt has an internal regulator as far as wiring it up?  Thanks

Offline crackedback

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #6 on: February 27, 2017 - 04:41:50 pm »
Voltmeter does not wire in the same way as the ammeter.

The signal for your voltmeter should be on a switched source.

Online GoodysGotaCuda

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #7 on: February 27, 2017 - 08:39:14 pm »
Ok so I have to ask because Im a dummy when it comes to this...sorry if this is a stupid question..(my 68 charger I had almost caught fire thanks to the old set up so Im not going to risk the challenger)...Im going to by pass the amp guage and go with a volt gauge by doing the alt to battery post/rely "upgrade".....does the volt gauge get wired like the amp gauge?  also what alt do you guys suggest?  What changes if the alt has an internal regulator as far as wiring it up?  Thanks


The voltmeter is simply reading the available voltage. Whereas ammeter is reading current and that current has to go -through- the gauge for it to work.

The voltmeter is much easier to work with.

An internally regulated alternator just has one-wire, an output to the battery. So you will no longer need the voltage regulator.


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2016 Subaru WRX
2016 BMW X1
1976 Dodge Warlock
1972 Barracuda - 5.7 Hemi + T56 Magnum - In progress

Wheel & Tire Specs:Link
Aftermarket Gauges:Link

Offline Mpdlawdog

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #8 on: February 27, 2017 - 08:42:45 pm »
Thanks for clearing that up :thumbsup:......What alt are people using to do this upgrade??



The voltmeter is simply reading the available voltage. Whereas ammeter is reading current and that current has to go -through- the gauge for it to work.

The voltmeter is much easier to work with.

An internally regulated alternator just has one-wire, an output to the battery. So you will no longer need the voltage regulator.


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Offline crackedback

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #9 on: February 28, 2017 - 01:38:32 am »
There are some denso that seem to work.  87ish toyota 4cyl PU

89-91 Dodge P/U & vans
« Last Edit: February 28, 2017 - 01:41:00 am by crackedback »

Offline Chris Pauluk

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #10 on: February 28, 2017 - 02:06:37 am »
I'd think 4 runner would be a better option for a higher amp alternator

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Chris Pauluk
Eagan Minnesota
1973 Plymouth Cuda 340 4spd (70 AAR clone'ish) bought it that way..

Offline Mpdlawdog

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Re: Internally regulated 90amp Denso alt, does it exist
« Reply #11 on: February 28, 2017 - 12:50:40 pm »
Do they bolt up using the factory bracket and belt or do you have to change the pully?  Thanks guys