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Old 03-08-2016, 08:10 AM
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Default installed Singer 270a alt but lower voltage?

So my stock 2013 Grand Cherokee came with a 180a high output alt. I decided to have singer recase my alt. Before on my stock alt my charging voltage hot was 14.6, Now with the singer in its 14.1 Why would it have gone down? I know Singer usually has his set points at 14.8. I contacted Mike also to see why. Im hoping the 270a will be much better even though its less voltage. I forgot my vehicle came stock with 180a high out.

Any suggestions? or maybe someone knows why? Im gonna cold start in the morning and read to see where im at. This is testing at the charging point 3 ft away from the alt.
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Old 03-08-2016, 08:24 AM
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Is that idle?
Most higher output Alts won't put out as much at idle
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Old 03-08-2016, 08:35 AM
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Voltage depends on whatever is regulating the voltage, whether it's internal to the alternator, externally regulated (with something like a transpo adjustable regulator box), or computer controlled like some cars have built into the ecu.

Is the 270a all brand new? You mentioned a 180a alt, a stock alt, and a recased alt.
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Old 03-08-2016, 08:41 AM
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It's whatever kind of regulator singer uses... My singer alts would charge at 13.7v... I sold them and swapped them out for excessive amperage now I see 14.6v all day hot
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Old 03-08-2016, 09:17 AM
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My singer charges at 14.8 all day and drops to 14.2 full tilt on the bc5500 at .5....
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Old 03-08-2016, 09:24 AM
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Quote:
Originally Posted by e46inperrycounty View Post
My singer charges at 14.8 all day and drops to 14.2 full tilt on the bc5500 at .5....


Yea my buddy has a singer in his Bonniville and it works great 14.4v all day... I ordered two singer alts and both charged at 13.7.... And I know adulbirch on here had the same problem with his singer alt he ordered from singer for his Silverado... It must be whatever regulator he use for Chevy 5.3 motor alts
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Old 03-08-2016, 09:31 AM
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Gotta be Nate, maybe he got a bad batch of them when he ordered his stock? No clue... The toyota is legit as fawk and todds VW is straight wanging power is all I know...lol
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Old 03-08-2016, 09:34 AM
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Quote:
Originally Posted by e46inperrycounty View Post
Gotta be Nate, maybe he got a bad batch of them when he ordered his stock? No clue... The toyota is legit as fawk and todds VW is straight wanging power is all I know...lol


I ordered my singer alts over two years ago and adulbirch just got his like a month ago.... My buddy just ordered a singer for his Ford F-150... Once he installs it I'll report back on how it's doing
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Old 03-08-2016, 09:35 AM
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My singer 270 is at 14.6 cold and 14.4ish hot
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Old 03-08-2016, 09:47 AM
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Quote:
Originally Posted by massivespl View Post
I ordered my singer alts over two years ago and adulbirch just got his like a month ago.... My buddy just ordered a singer for his Ford F-150... Once he installs it I'll report back on how it's doing
And now I'm stuck with your old alts lol
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