23mm master cylinder, out of what??? Options

[stock93]

What car did the 23mm master cylinder that will bolt into our cars come out of?

John

[lapuwali]

QUOTE (ArtechnikA @ Feb 15 2005, 03:47 PM)

QUOTE (lapuwali @ Feb 15 2005, 05:54 PM) ...I would think a 21mm MC (if such a beast exists or could be made) would be about ideal for these calipers. ... there *used to be* a 20,5mm MC used with the early 911E and 911S with aluminum calipers front but the rear brakes unchanged. those have been NLA for years. BTW - we call these MC sizes by their nearest metric equivalents, but they're *actually* English-system measurements. 19mm is really 3/4", that 20,5 is really 13/16", and the 17mm is really 11/16" (11, 12, and 13/16")

Something handy to know.

On Honda motorcycles (using Nissin brake parts, Nissin is owned by Honda), they cast the size of the MC into the body of the MC. However, some are shown as metric (11mm for a particular 400), some are English (0.5 for a popular 600). I'll bet the 11mm isn't really metric, either, but 7/16" (only 4 thou different: 0.433" v 0.437").

Wilwood makes a "21mm" (13/16") and a "22mm" (7/8") MC with a remote setup. They're only single circuit, though. They make some dual circuit MCs, but they're big (smallest is "25mm" or 1").