Barracuda Challenger Forum

Author Topic: Powermaster alternator problem  (Read 1214 times)

Offline shatar4

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Powermaster alternator problem
« on: September 26, 2016 - 04:16:51 PM »
Has anyone had problems with the 140 amp Powermaster street alternator? Mine has a grayish dust that's forming in the back of it.
1971 Triple black 340 Challenger




Online brads70

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Re: Powermaster alternator problem
« Reply #1 on: September 26, 2016 - 08:01:07 PM »
I haven't personally but Neil didn't give them any glowing reviews..... :-\
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline Killer_Mopar

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Re: Powermaster alternator problem
« Reply #2 on: September 27, 2016 - 08:07:26 AM »
FWIW, my car and my father's both have the 95A version and he managed to smoke one of them but Powermaster replaced the alternator free of charge and he hasn't had an issue since (wiring was replaced at same time, which may have contributed to the issue). I've never had an issue with mine.... that being said, I've seen several negative reviews/posts over the years.... but for the price and it being chromed, I'm happy.
70 Challenger R/T SE - The never-ending project........


Offline Chryco Psycho

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Re: Powermaster alternator problem
« Reply #3 on: October 02, 2016 - 09:56:05 PM »
"powermaster" is your problem they are often good for a week or so sometimes less

Challenger - You`ll wish You Hadn`t

Offline marc70challenger

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Re: Powermaster alternator problem
« Reply #4 on: October 13, 2016 - 11:08:43 PM »
"powermaster" is your problem they are often good for a week or so sometimes less


Chryco - with our new project, I want to be able to up the electrical system from 12 to 16 volts at some point.  So was looking at Powermaster XS ... so could use same alt and just up voltage output 
http://powermastermotorsports.com/xs_volt_for_racing_a.html 

You think they are crap?  Do you have any suggestions for our situation?  Or manufacturer.  Need at least 140 amp ... 150-160 I would prefer ... and if could change/regulate voltage up to 16v would be perfect.  I've searched/googled ... but its the internet opinion poll ... :lol:

Thanks!!!!!
« Last Edit: October 13, 2016 - 11:11:31 PM by marc70challenger »
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline Chryco Psycho

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Re: Powermaster alternator problem
« Reply #5 on: October 13, 2016 - 11:31:34 PM »
I have not looked for a 16 v alt , Brad found a high power unit though for his car .
 Maybe a rebuilder could create a 16v 160 amp unit for you , I had a custom 150 amp built for one project with a lot of power draw

Challenger - You`ll wish You Hadn`t

Offline marc70challenger

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Re: Powermaster alternator problem
« Reply #6 on: October 13, 2016 - 11:33:41 PM »
I have not looked for a 16 v alt , Brad found a high power unit though for his car .
 Maybe a rebuilder could create a 16v 160 amp unit for you , I had a custom 150 amp built for one project with a lot of power draw

Cool.  For off-the-shelf manufactured ... who do you like?  Thanks man!
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline Chryco Psycho

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Re: Powermaster alternator problem
« Reply #7 on: October 13, 2016 - 11:47:39 PM »
I cannot think of a MFG that I trust off the shelf , Summit or Jegs may have something , I just had most of mine built locally , you could buy the powermaster & have a rebuilder check it over carefully , I have just seen too many fail very quickly

Challenger - You`ll wish You Hadn`t

Offline Bullitt-

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Re: Powermaster alternator problem
« Reply #8 on: October 13, 2016 - 11:56:42 PM »
Hey Marc, How've y'all been?  ....  :wave:
Here's a bolt on custom job  http://www.qualitypowerauto.com/item_557/Chrysler-Mount-Mega-Amp-Alternator.htm
That may be the one Brad has ... Those upgraded OE jobs don't improve the idle output only at upper rpms
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline Chryco Psycho

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Re: Powermaster alternator problem
« Reply #9 on: October 14, 2016 - 12:17:42 PM »
Looks like a decent option  :2thumbs:

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Online brads70

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Re: Powermaster alternator problem
« Reply #10 on: October 14, 2016 - 06:07:05 PM »
Hey Marc, How've y'all been?  ....  :wave:
Here's a bolt on custom job  http://www.qualitypowerauto.com/item_557/Chrysler-Mount-Mega-Amp-Alternator.htm
That may be the one Brad has ... Those upgraded OE jobs don't improve the idle output only at upper rpms


Yep that the one I have. Working great!  :2thumbs:
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline TonyBolton

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Re: Powermaster alternator problem
« Reply #11 on: October 14, 2016 - 06:40:07 PM »
Mechman alternators if you want the best out there.

Offline roadman5312

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Re: Powermaster alternator problem
« Reply #12 on: October 14, 2016 - 06:59:01 PM »
Yep that the one I have. Working great!  :2thumbs:

                      Same here     :2thumbs:

Offline marc70challenger

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Re: Powermaster alternator problem
« Reply #13 on: October 15, 2016 - 11:19:27 PM »
I cannot think of a MFG that I trust off the shelf , Summit or Jegs may have something , I just had most of mine built locally , you could buy the powermaster & have a rebuilder check it over carefully , I have just seen too many fail very quickly

Good point!
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0

Offline marc70challenger

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Re: Powermaster alternator problem
« Reply #14 on: October 15, 2016 - 11:31:26 PM »
Hey Marc, How've y'all been?  ....  :wave:
Here's a bolt on custom job  http://www.qualitypowerauto.com/item_557/Chrysler-Mount-Mega-Amp-Alternator.htm
That may be the one Brad has ... Those upgraded OE jobs don't improve the idle output only at upper rpms


Very nice - thanks!!!   We're gonna have to cut into the engine plate - no big deal, to make it fit ... and this one is actually dimensionally not that big .. least for what you get!
1970 Challenger 340 Performance Package
1965 Barracuda - "The Pumpkin"  http://www.cuda-challenger.com/cc/index.php?topic=116471.0