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370 AMP alt not charging @ idle


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Hey guys, I recently installed my new alternator in my 2001 VW Golf and it will not charge at idle, like it will literally gives no output, however, step on the gas and raise the RPMs 200 more and I go from 12.8 to 14.8 and it outputs lotss and lots of amperage as it should once the RPMs are up. Moral of story- 600 RPMs no output, 750-800 great voltage-output

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Kenwood KVT-614

(4) Marathon 155 AH batts

2/0 OFC SHCA

Mechman 370

(2) Audioque 3500.1

(2) AA Mayhem 15s

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What brand of Alt? And a 600 rpm idle is pretty low so it's not surprising

Edited by Broke_Audio_Addict

That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.

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The pulley I am using is from Mechman and is noticeably smaller than my OEM one. I am afraid that with an even smaller pulley my belt will slip. Smaller belts are not available for my car unfortunately :( (7 rib double sided..)

Kenwood KVT-614

(4) Marathon 155 AH batts

2/0 OFC SHCA

Mechman 370

(2) Audioque 3500.1

(2) AA Mayhem 15s

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Thats one of the tradeoffs with a huge alt.. especially 3 phase

Low idle output, if any.

Smaller pulley *may* slip under load.. but the only other way that i can think of is a diff crank pulley (depending on ur belt routing).. and that can prove to be a bitch.

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On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

Mitsubishi 3000GT (Old Build)

Headunit: Pioneer 80PRS

Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids

Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies

Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s

Electrical :Singer 260A Alt & JY Power Lithium

 

2005 Chevy Colorado Ext Cab

Headunit: Pioneer 80PRS

Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms

Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s

Electrical: Singer "390" and JY Power

My Official Feedback Thread

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I thought this was the alt that was supposed to do a ton @ idle? Im fairly certain its a 6 phase. Like the difference in 100 RPMs means output and no output??? Thats crazy!?

the 100RPMs can make the difference of turning on and NOT turning on. Its insane, but true.

  • Like (+1 Rep) 1
On 5/8/2011 at 7:38 PM, Kranny said:
On 5/8/2011 at 7:35 PM, 'Maxim' said:

It hurts me inside when I read stuff like this and remember you're 15

LMFAO so true

:blush:

Mitsubishi 3000GT (Old Build)

Headunit: Pioneer 80PRS

Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids

Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies

Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s

Electrical :Singer 260A Alt & JY Power Lithium

 

2005 Chevy Colorado Ext Cab

Headunit: Pioneer 80PRS

Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms

Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s

Electrical: Singer "390" and JY Power

My Official Feedback Thread

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