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Old 04-22-2019   #1
secondchance
 
Join Date: Aug 2006
Location: McLean, VA
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Default Alternator upgrade

In preparation of Spal fan upgrade I am planning, I decided to upgrade my alternator to 200amp. Powermaster is an option but figured I would try Nippon Denso version customized to work with CS144 cars.
Mike (5abivt) had done this conversion a couple of years ago. His choice was DC Power unit. However, his difficulty in adopting Nippon Denso connector to CS144 was noted and led to my decision to go with Quality Power Alternator since Quality Power Alternator offers conversion harness taking the guess work out and keeping it looking professional.
Additional 8 ga. cable was added between the alternator post to battery to allow for additional current and, while at it, added additional 18 ga. between the battery and HVAC controller resulting in some extra oomph to HVAC fan.
Note Phil's custom spacer that allows slick adoptation to passenger side mounting bracket.


All buttoned up. Shame that most of the alternator is hidden behind vent tube, harness and bracket.


Of course, while at it, a perfect opportunity to replace fuel pressure regulator with Phil's upgraded version.


The work was done at WAZOO garage with invaluable help from Jim and moral support from Nelson and Charlie. Thanks guys!!!

Last edited by secondchance; 04-22-2019 at 09:13 AM.
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Old 04-22-2019   #2
-=Jeff=-
 
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Join Date: Jul 2007
Location: Bartlett, IL
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Default Re: Alternator upgrade

Do you have more details on part numbers and cost? I would like to upgrade my alternator and was leaning towards this route but could not find and info when I searched

Thanks
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Old 04-22-2019   #3
secondchance
 
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Default Re: Alternator upgrade

Quote:
Originally Posted by -=Jeff=- View Post
Do you have more details on part numbers and cost? I would like to upgrade my alternator and was leaning towards this route but could not find and info when I searched

Thanks
I think below is the one I ordered.
https://www.qualitypowerauto.com/ite...-7.2-Mount.htm

Invoice says 8112-ND-200A, rear post 6S 2.3" pulley and W3030D harness.
Again, passenger side post needs a spacer and thread needs to be bored out for our LT5. Cost was $485 including the harness.

Talk to Kevin. He was very helpful.
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Old 04-25-2020   #4
1LEZ
 
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Default Re: Alternator upgrade

Quote:
Originally Posted by secondchance View Post
I think below is the one I ordered.
https://www.qualitypowerauto.com/ite...-7.2-Mount.htm

Invoice says 8112-ND-200A, rear post 6S 2.3" pulley and W3030D harness.
Again, passenger side post needs a spacer and thread needs to be bored out for our LT5. Cost was $485 including the harness.

Talk to Kevin. He was very helpful.
Can you tell if this works for a 1990 car? Thanks for the write up!
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Old 04-25-2020   #5
secondchance
 
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Default Re: Alternator upgrade

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Originally Posted by 1LEZ View Post
Can you tell if this works for a 1990 car? Thanks for the write up!
As far as I know, yes. No difference in alternator physical dimensions or any mounting points.
Throw in 2 Spal fans and fear of overheating becomes a distant memory.
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Old 04-22-2019   #6
HAWAIIZR-1
 
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Default Re: Alternator upgrade

Yun, nice mod and I did not think so soon. Thanks for sharing and costing me even more money.....LOL.

Maybe we can convince Phil to sell his custom spacer?

Maybe Kevin will consider a group buy too?


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Old 04-22-2019   #7
secondchance
 
Join Date: Aug 2006
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Default Re: Alternator upgrade

Quote:
Originally Posted by HAWAIIZR-1 View Post
Yun, nice mod and I did not think so soon. Thanks for sharing and costing me even more money.....LOL.

Maybe we can convince Phil to sell his custom spacer?

Maybe Kevin will consider a group buy too?


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Talk to Kevin - don't hurt to ask. Right? Custom spacer is nice but stacked washers will work in a pinch.
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Old 04-22-2019   #8
HAWAIIZR-1
 
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Default Re: Alternator upgrade

Quote:
Originally Posted by secondchance View Post
Talk to Kevin - don't hurt to ask. Right? Custom spacer is nice but stacked washers will work in a pinch.

I’ll try to get on the right time zone and give him a call. Not into washers and will check with Phil. If nothing else some specs to have Carter make a run. Thanks again!



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Old 04-22-2019   #9
-=Jeff=-
 
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Default Re: Alternator upgrade

Kevin is the contact @ Quality Power Alternator? I would think the later tech Alternator would work better/last longer
__________________
1990 Corvette ZR-1 #1051
Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback
Late Model IH - Plenum
Coilovers - 4.10s
Custom Interior
NCM Lifetime Member #978
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Old 04-22-2019   #10
secondchance
 
Join Date: Aug 2006
Location: McLean, VA
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Default Re: Alternator upgrade

Quote:
Originally Posted by -=Jeff=- View Post
Kevin is the contact @ Quality Power Alternator? I would think the later tech Alternator would work better/last longer
Kevin is the contact at Quality Power. My understanding is that Nippon Denso units use "hairpin" winding for the stator resulting in more efficiency.
These alternators evidently have high RPM capability. Kevin was recommending 1.6" pulley (if I remember correct) and I went conservative with the largest pulley offered - 2.3". This combo requires 80 inch belt.
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