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  #11  
Old 09-17-2018, 03:18 PM
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Originally Posted by OZgreen69 View Post
Here is the Nipon Denso 75Amp fitted to my car,

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One wire, simple upgrade and 7.29 Lbs.
Indeed I am running no accessories like radio, pw windows. Just elec fuel pump, and keeping all the lights working.
My present Denso alternator looks just like that one, albeit 41A IIRC and 6.9#. The difference in weight may be the pulley, as that one looks a touch bigger diameter. I'm trying to find a slightly larger pulley like yours to slow the alternator RPM down a touch.
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Old 09-17-2018, 04:44 PM
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Big defined: Aluminum Single Alternator Pulley, 5 Inch

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Pretty short on details.

Last edited by rtj; 09-17-2018 at 04:46 PM..
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Old 09-19-2018, 01:34 AM
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Big defined: Aluminum Single Alternator Pulley, 5 Inch

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Pretty short on details.
Yeah. I was looking for the shaft/bore size, but no info there.
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Old 09-19-2018, 01:41 AM
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I got the water pump (with the half pound lighter cover) put back on the engine yesterday. I weighed the three groove stock w/p pulley, and it's 2.6#. I suspect that an aluminum replacement would be lighter, but I also suspect it would be rather pricey. Just for amusement I'll probably try to find one of these on somebody's site, and see what the numbers are.
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