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> 23 mm Master cylinder?, From a 930?
HalfMoon
post Oct 31 2017, 08:46 PM
Post #21


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A friend of mine who owns a race shop that does alot of Porsche work said when queried about reducing travel on the 914 brake system that the 23mm master cylinder from a 930 would far better reduce the travel over a 19mm master cylinder.
Has anyone done this mod and if so, what were the performance gains/differences?
Thanks
D
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HalfMoon   23 mm Master cylinder?   Oct 31 2017, 08:46 PM
Vacca Rabite   A friend of mine who owns a race shop that does a...   Oct 31 2017, 09:32 PM
HalfMoon   A friend of mine who owns a race shop that does ...   Oct 31 2017, 10:05 PM
porschetub   A friend of mine who owns a race shop that does a...   Oct 31 2017, 10:19 PM
Mike Bellis   I'm running a 23 but I also have 930 brakes. I...   Oct 31 2017, 10:39 PM
HalfMoon   I'm running a 23 but I also have 930 brakes. ...   Oct 31 2017, 10:56 PM
shoguneagle   Agree with all the above. I am running 23mm M/C w...   Oct 31 2017, 10:52 PM
HalfMoon   Agree with all the above. I am running 23mm M/C ...   Oct 31 2017, 10:57 PM
HalfMoon   To clarify- I run a 19mm too (as well as a variet...   Oct 31 2017, 10:55 PM
mepstein   To clarify- I run a 19mm too (as well as a varie...   Nov 1 2017, 05:30 AM
jd74914   To clarify- I run a 19mm too (as well as a vari...   Nov 1 2017, 05:49 AM
mepstein   [quote name='mepstein' post='2544209' date='Nov 1...   Nov 1 2017, 05:58 AM
HalfMoon   To clarify- I run a 19mm too (as well as a vari...   Nov 1 2017, 10:02 AM
mepstein   [quote name='mepstein' post='2544209' date='Nov 1...   Nov 1 2017, 11:36 AM
porschetub   [quote name='mepstein' post='2544209' date='Nov ...   Nov 1 2017, 04:59 PM
infraredcalvin   It’s not a 930 MC is a 23 mm ATE MC for a Merced...   Oct 31 2017, 11:50 PM
infraredcalvin   Sorry had to edit above...   Oct 31 2017, 11:55 PM
flyer86d   My old 911SC track car had turbo brakes front and ...   Nov 1 2017, 05:30 AM
DBCooper   And, important to note, with just a larger m/c you...   Nov 1 2017, 08:28 AM
Racer Chris   We just swapped out a 23mm M/C for a 22 mm VW unit...   Nov 1 2017, 09:04 AM
HalfMoon   We just swapped out a 23mm M/C for a 22 mm VW uni...   Nov 1 2017, 10:05 AM
mgp4591   We just swapped out a 23mm M/C for a 22 mm VW uni...   Nov 1 2017, 11:05 AM
Racer Chris   Is that the M/C for the Corrado that you swapped ...   Nov 1 2017, 11:07 AM
tomeric914   20.64mm or 22.22mm Master Cylinder Option How-To t...   Nov 1 2017, 07:03 PM
HalfMoon   20.64mm or 22.22mm Master Cylinder Option How-To ...   Nov 2 2017, 05:38 PM
Racer Chris   20.64mm or 22.22mm Master Cylinder Option How-To...   Nov 2 2017, 07:08 PM
tomeric914   David, This is basic hydraulics, but somehow, too...   Nov 2 2017, 07:54 PM
HalfMoon   David, This is basic hydraulics, but somehow, to...   Nov 2 2017, 11:48 PM
Keyser Sose   I currently run a 19mm and find that their's s...   Nov 3 2017, 10:56 AM
Racer Chris   the bias valve can make it hard to get them full...   Nov 3 2017, 03:03 PM
Keyser Sose   the bias valve can make it hard to get them ful...   Nov 3 2017, 03:37 PM
Racer Chris   So do those valves ever go bad? They don't ...   Nov 4 2017, 09:06 AM
tomeric914   THIS IS AN EXAMPLE ONLY!!! You need t...   Nov 3 2017, 03:04 PM
DBCooper   OK, when I got my car the pedal was way too hard. ...   Nov 1 2017, 10:34 AM
Dave_Darling   When you change the diameter of the master cylinde...   Nov 1 2017, 09:48 PM
tomeric914   ...on a bone stock brake system When you change ...   Nov 2 2017, 08:39 AM
Dave_Darling   ...on a bone stock brake system No, that's ...   Nov 2 2017, 12:07 PM
tomeric914   The reason for going with a larger master cylinder...   Nov 2 2017, 07:36 PM
SirAndy   When you change the diameter of the master cylinde...   Nov 2 2017, 11:19 AM
porschetub   When you change the diameter of the master cylind...   Nov 2 2017, 06:59 PM
GeorgeRud   Is the lack of a proportioning valve on the 911s b...   Nov 4 2017, 09:19 AM


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