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Uprated Alternator For Audi A4 B5

ZeroK66 Nov 21, 2006

  1. ZeroK66

    ZeroK66 Member

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    Hi Guys,

    How/Where can I get one? My motor will be out soon, so be a good idea to it at the same time.

    cheers
     
  2. ZeroK66

    ZeroK66 Member

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    I have tried an A8 one which is 150A but did not fit... trying a TDI one next.
     
  3. madvw

    madvw Active Member

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    i'd guess that the diesel one would be the largest you could go without a specialised one.
     
  4. Broken Byzan

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User quattro Audi A4

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    I have a 120 amp TDi one to go on mine when i drop the turbo motor in, it looks at first glance as tho it will fit without to much problem,other than maybe taking a lug off the alternator annd fitting a spacer to the rear mount
     
  5. AndyMac

    AndyMac Moderator Staff Member Moderator

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    My standard A4 2.8Q is 120amp
     
  6. ZeroK66

    ZeroK66 Member

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    Yeah the 2.7T is 120A as well... probably ample for any reasonalbe size setup (aiming for 1500W RMS currently) - but still, while the engine is out I may as well get a new one in there and an upgraded one while I am at it :p
     
  7. ZeroK66

    ZeroK66 Member

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    Apparently the TDI one will fit... so watch this space.

    I am running 4awg cable from the alternator - battery. Multiple earth straps from the engine to the chassis and 0awg cable from the battery earth to the chassis. That should solve any current flow issues I have.

    Will report back and let you know if it has solved my dimming issues. Last thing needed is newer battery and a nice monoblock :D
     
  8. ZeroK66

    ZeroK66 Member

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    Ended up running 0awg cable from the alternator to the battery :). Running 0awg from the battery -ve to the earth too... so there should be ample cable in place.

    Not sure if I am going to see any benifit from the TDI alternator... as this could also be 120A :( - and probably cost me a bomb! either way... I got a nice shiny new alternator in there, some good hardcore cabling ready for a nice install once i get some money in the bank again.

    Cheers,
     
  9. ZeroK66

    ZeroK66 Member

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    Well the latest report is WOW - what a difference. The sound from my standard amp is MUCH improved. That is only pulling about 6-800W at the time. Upgrading the wiring I think made the biggest difference. This is a very worthwhile upgrade if you are running a few hundrew Watt :)
     

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