posted
i recently installed a 160amp alt in audi and stock was 125 and also upgraded to red top, thing is...i odn't notice difference at all in dimming!! anyone know what cause could be?
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1998 audi a6 2.8 quattro 2006 Audi A3 2.0T Moro Blue Posts: 728 | From: va | Registered: Feb 2003
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posted
The dimming is probably from the new alt having an idle output less than the stock alt. The new alt may be a little higher max amperage but is probably a poor design and lacks low rpm performance. Thats the main difference in different manufacturers alts. All 200 amp alts will probably do 200 amps but which one will have some power at idle. And at what rpm does the 200 amps come into play.
How much power do you have?
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2002 UsaCi Super Modified 0-1000 World Champion 173.6 2002 UsaCi Legal World Record Holder Expert 0-600 (B&K) 171.0 (171.4) 2003 Meca XX-Class Record Holder 172.0 (backed up with a 171.9) Posts: 1194 | From: LaVergne TN. | Registered: Sep 2001
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well, it dimmed before upgrade, and it still dims even when driving at 4000 rpm. im running jbl 1200 at one ohm, so probably around 1200 watts and lanzar vibe410, so thats around 350watts. should the alt need like a break in time?
-------------------- RIP Mr Rogers RIP Dave Thomas...thanks for WENDY'S AND THE 99CENT MENU!!!
1998 audi a6 2.8 quattro 2006 Audi A3 2.0T Moro Blue Posts: 728 | From: va | Registered: Feb 2003
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posted
Your amp will pull around 150 amps full tilt. If you add that to what your car is pulling to run the fans, ignition etc. Your exceeding the capacity of the alt. You really need a bigger alternator. Something in the 200 amp range.
Dom
-------------------- LOUDEST CERTIFIED SCORE ON LINEAR X 172.0
2002 UsaCi Super Modified 0-1000 World Champion 173.6 2002 UsaCi Legal World Record Holder Expert 0-600 (B&K) 171.0 (171.4) 2003 Meca XX-Class Record Holder 172.0 (backed up with a 171.9) Posts: 1194 | From: LaVergne TN. | Registered: Sep 2001
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posted
well, i know u quoted me before on a 210amp alt for around 389 i think. was that price includin core? or w/out core? cuz i may send back current and buy from you
-------------------- RIP Mr Rogers RIP Dave Thomas...thanks for WENDY'S AND THE 99CENT MENU!!!
1998 audi a6 2.8 quattro 2006 Audi A3 2.0T Moro Blue Posts: 728 | From: va | Registered: Feb 2003
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