Standard B5 S4 hat height

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  • Henka
    S2Forum Maniac
    • Nov 2004
    • 585
    • Home: Sweden

    #1

    Standard B5 S4 hat height

    Can the standard S4 B5 front rotors be used when converting to 996 monos on a S2 Avant? What is the hat height? They are 321mm so they should provide the extra clearence that the A8's don't (according to some). They are, however, more expensive than the A8 ones.
  • Stick Insect
    S2Forum Fiend
    • Dec 2003
    • 2338
    • Country: United Kingdom

    #2
    Hi Henka, it is not the disk size the matters, It is the caliper mounting bracket height as the caliper is close to the wheel not the disk.

    The disk height has to be smaller and then the caliper moved in by different brackets or machining the caliper

    I have a set which seems to clear OK there is 2-3mm clearance, if the wheel bendses that much the car would be undriveable!

    David

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    • BRY
      S2Forum Possessed
      • Nov 2004
      • 3755
      • Home: United Nations Current: Vietnam

      #3
      2mm on diameter might give enough clearance on a 16" Avus - just
      Kingdoms are run by Kings, Dictatorships are run by Dictators.
      England must be a Country. :mischeif:

      Comment

      • BRY
        S2Forum Possessed
        • Nov 2004
        • 3755
        • Home: United Nations Current: Vietnam

        #4
        But 314mm A8 discs are cheaper and don't have hat height issues.
        Kingdoms are run by Kings, Dictatorships are run by Dictators.
        England must be a Country. :mischeif:

        Comment

        • Henka
          S2Forum Maniac
          • Nov 2004
          • 585
          • Home: Sweden

          #5
          Still, I'd like to know if a S4 disk is usable. Mainly 'cause I saw a pair for sale at a fair price. They were however crossdrilled which I don't fancy... Hat height please!

          Comment

          • Stick Insect
            S2Forum Fiend
            • Dec 2003
            • 2338
            • Country: United Kingdom

            #6
            Originally posted by BRY
            2mm on diameter might give enough clearance on a 16" Avus - just
            Not with monoblocks it won't Bryan. the old split 993TT calipers clear I have seen photos on the forum of this all inside a 16" wheel!

            I don't know if Henka is running 16" wheels though. Can't help on the hat size. Maybe brembo site?

            David

            Comment

            • 90quattrocoupe
              S2Forum Maniac
              • Nov 2003
              • 771
              • Country: United States

              #7
              Originally posted by Henka
              Still, I'd like to know if a S4 disk is usable. Mainly 'cause I saw a pair for sale at a fair price. They were however crossdrilled which I don't fancy... Hat height please!
              According to Zimmerman

              Total height of the B5 S4 321X30 rotor is 46.5mm vs 59.5mm on the A8 rotors.

              Greg W.
              They can have my car when they pry my cold dead fingers from the steering wheel.

              Comment

              • Henka
                S2Forum Maniac
                • Nov 2004
                • 585
                • Home: Sweden

                #8
                Ok, then it won't work anyway. Thanx for the info!

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