Hi Jim,
The key thing when you are talking about BJ8 Brakes (or any standard Healey
brakes) is that they use a solid rotor - not a ventilated rotor.
Cross drilling a Ventilated rotor (which allows air to enter between the two
rotor braking faces, and escape through the rotor braking face) makes a
whole lot of sense to me. Cross drilling a solid rotor doesn't...
Ventilated rotors are generally far too thick to use with Healey calipers -
but many Australian Healey racers have used e.g. Volvo calipers and
ventilated rotors on their Healeys.
Slotting a solid rotor also makes sense - the slots keep the pad face
'square' by effectively 'clipping' it on each rotation - proving even pad
wear and minimising pad glazing.
On my BJ8, I have DBA slotted rotors (part number 094BS - standard slotted)
They also do std normal rotors (094B std) and slotted AND Crossdrilled
(094BX- standard Gold ), with Std BJ8 calipers.
Interestingly - the Healey rotors don't appear in the DBA international
catalogue:
http://www.dba.com.au/dba_catalogue_2004/HTML/pdf/DBA_INT_CAT_2005_v3_web.pdf
But you'll find them on page 57 of the DBA Australian catalogue:
http://www.dba.com.au/DBAcat_012005.pdf
As far as 'best stopping' goes for a BJ8 using BJ8 calipers - thats more a
function of the pad; the pad being suited for the application; and correct
bedding in of the pads.
Best
Chris
www.myaustinhealey.com
----- Original Message -----
From: "James Sailer" <heliskier@direcway.com>
To: "Healey List" <healeys@autox.team.net>
Sent: Sunday, January 08, 2006 4:56 AM
Subject: Slotted Discs
> Hi All
>
> Am looking for some new discs for the front of my BJ8. Have seen various
> pics of cars with slotted discs but not seen vendors. Anyone have some
> guidance .. Also if these are the way to go to get best stopping.
>
> Thanks.
>
> Jim Sailer 66 BJ8
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