Battery and additional eart point suggestions

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  • stocious
    S2Forum Maniac
    • Jul 2012
    • 838
    • Country: Ireland

    #1

    Battery and additional eart point suggestions

    Looking for suggestions for a new battery, what rating should it be ect..
    Also I'm going to put an additional earth strap from the battery but can't decide where to?

    Bell housing
    Intake manifold
    Cylinder head

    Considering the type of ignition on the 3B and spark hop/cylinder pressure being its weakness, as close to the plugs as possible is the best location. ? Or not ?

    Stephen
    1991 S2 3B Coupe, KW v1, solid sub frames, poly bushed, chipped, about 260 ish
  • AndyP
    S2Forum Zealot
    • Feb 2004
    • 6049
    • Country: England

    #2
    I use the Bosch S5 battery and I've also run a 2nd earth strap from the battery to the bell housing. The car was slighty sluggish to start even after I'd cleaned the earth strap on the drivers side, after adding the 2nd strap the starter was spinning over much quicker.
    sigpic
    1991 Audi S2 3B - 2.5 Stroker engine
    1997 A6 2.5TDi quattro avant - C4
    1976 RD250E / 350LC cafe racer

    Comment

    • stocious
      S2Forum Maniac
      • Jul 2012
      • 838
      • Country: Ireland

      #3
      Cheers andy I'll look into a Bosch one
      1991 S2 3B Coupe, KW v1, solid sub frames, poly bushed, chipped, about 260 ish

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      • Jamo
        Retired OG Mod
        • Mar 2004
        • 21750
        • Country: United Kingdom

        #4
        Originally posted by AndyP
        I use the Bosch S5 battery and I've also run a 2nd earth strap from the battery to the bell housing. The car was slighty sluggish to start even after I'd cleaned the earth strap on the drivers side, after adding the 2nd strap the starter was spinning over much quicker.
        in the end i've ended back up with Bosch S5 batteries, they are cheap from eurocarparts or ebay

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        • AndyP
          S2Forum Zealot
          • Feb 2004
          • 6049
          • Country: England

          #5
          This is the one I have:-



          Don't pay this price though, wait until they have one of their 25/30% sales!

          And when I say 'I' fitted the extra earth cable, it was actually Brian Tonks, so credit where it's due
          sigpic
          1991 Audi S2 3B - 2.5 Stroker engine
          1997 A6 2.5TDi quattro avant - C4
          1976 RD250E / 350LC cafe racer

          Comment

          • stocious
            S2Forum Maniac
            • Jul 2012
            • 838
            • Country: Ireland

            #6
            Cheers for all the help/suggestions lads
            Laid out atm but ill get on it once fit again
            1991 S2 3B Coupe, KW v1, solid sub frames, poly bushed, chipped, about 260 ish

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