smaller alternator

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smaller alternator

Postby chevyart » Thu Jan 12, 2017 8:37 pm

made up my alternator bracket from an older Zoops big block bracker that mounted the alternator on the drivers side, in middle of engine. now i have it on the passenger side, just outbound of the valve cover, and it is tight to valve cover,. the standard size alternator i am using(70s 2 prong) is real close to valve cover. is there any type of smaller alternator that has all the same specs as the standard alternator i mentioned, but with a smaller width body to help clear the valve cover, and bolt into the alternator bracket (2" wide mounting pad), and stlll have the pulleys line right up the same as the standard alternator., and give me aprox 100 amps power output. thanks art
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Re: smaller alternator

Postby gt350fme » Fri Jan 13, 2017 11:39 am

Maybe try one of these 7 lb mini denso alternators, I will be using a 70 amp unit but there is a 90 amp model also, these are single wire activated but can be wired with the 3 wires and act like a regular alternator, you will have to get creative with the mounting brackets but it can be done.
Mine is installed and wired on the passenger side, I have not run it yet so I don't know how well it will work. ... F80NNRBBYV
1964 Chevy K20 Panel
1973 GT Vega Hatchback
1984 944 porsche
1992 Lexus SC 400
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1973 Chevrolet Vega GT

Re: smaller alternator

Postby zeke » Fri Jan 20, 2017 1:15 am

Better option than the ND alternators is a cs130 Delco unit.

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1979 Chevrolet Monza 2+2

Re: smaller alternator

Postby spencerforhire » Fri Jan 20, 2017 7:38 am

CS130 is what's on my drag car; I doubt if it's any more than a pound heavier than the Nipponenso Suzuki one. My hauler is the only quiet place in the pits- no generator and battery charger running between rounds. Notice the "vintage" Moroso 5" underdrive pulley; I really should swap it for a 4" one, as the car really doesn't charge properly below 1500rpm. And I have a 5-minute timer for the fan and waterpump to cool down between rounds so I can't forget to shut stuff off.
alt.jpg (166.32 KiB) Viewed 653 times
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD (work truck/parts hauler)
04 Silverado 2WD (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

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1972 Chevrolet Vega Hatchback

Re: smaller alternator

Postby leander » Tue Apr 11, 2017 1:58 am

May car also has cs130 Delco alternator for 3 years now and have no issues whatsoever.
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