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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-14-2010, 12:17 AM   #1
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So I think I need to change my generator soon. What can I get to up grade form stock. Something like a bolt on from another vehicle or how much many amps can I go up too. thanks guys.
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Old 01-14-2010, 03:19 AM   #2
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Originally Posted by Nighthwk12 View Post
So I think I need to change my generator soon. What can I get to up grade form stock. Something like a bolt on from another vehicle or how much many amps can I go up too. thanks guys.
I have seen 150A (ours are stock 140A) alternators listed as a compatible upgrade. I'm sure there are much higher ones for street/comp performance, but then there are concerns of the regulator properly handling them for wiring. The scrawny wires which go to the fuel pump are my first thought.

If you want a sneaky way to hold voltage up and in reserve, Danthurs wrote a tech info on the "alternator sensor wire". It will give you .5v+ on the active power bands.

From experience, all is wasted if your battery isn't operating maximumly, though. If the alt is busy charging a fat battery all of the time, it cannibalizes on-demand reserves from the charge circuit. A big thug 1000CCA battery (Optima isn't necessary) is a good choice. IMHO, that'* a brutish combo to power an N/A with.

One note, if you have after market sound gear. Sony and a couple of other manufacturers' receivers (i think you guys call them head amps) get a little weird as you get up towards 15v.
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Old 01-14-2010, 07:54 AM   #3
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If I remember right, Rich'* Park Ave Ultra has the 140A alternator. It had it in his RPO listing.
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Old 01-14-2010, 07:56 AM   #4
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An SSEi would have the 140amp, an SE only got about a 120-125amp IIRC. Buy an SSEi one. Core is the same.
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Old 01-14-2010, 02:54 PM   #5
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I just replaced mine and it is a 140 amp. I have the SE and did not check to see what amp the one I replaced was.
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Old 01-14-2010, 05:28 PM   #6
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I've had this on the back of my mind for a while, putting in an alternator from a newer 3800 that has the pins for heated windshield washer fluid. I believe those are also higher amp than the standard alternator. Possibly the 150A. I really want that heated windshield washer fluid!
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Old 01-17-2010, 05:27 PM   #7
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there are websites that you can place an order and get ones custom built to push up to like 220 amps.....heres the link

http://www.highoutputalternator.com/online-catalog.aspx
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Old 01-17-2010, 08:23 PM   #8
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Interesting. wouldn't that fry some stuff in my car though
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Old 01-17-2010, 08:38 PM   #9
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no, I dont think so. there are cars that run several alternators of this size to feed the amplifiers for subwoofers.
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Old 01-17-2010, 08:59 PM   #10
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If it was physically possible, you could take the alternator off a locomotive and wire it into your car with no worries.
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