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Old 10-19-2010, 03:32 PM   #1
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Default VIDEO: Master Cylinder Flex...

It's no secret that many cars including Miatas have some flex in the master cylinder area during braking events. Here is a quick viddie I made indicating the amount and direction of the bending issue. You could hook up dial indicators and pedal force and hydraulic pressure sensors, however I was satisfied just getting a sense of the issue at first.

http://www.youtube.com/watch?v=dgd7tvCDUdc

There are a number of ways to address such flaws. The reward is a firmer brake pedal with an increased ability to modulate. Improve a few things like this here and there and before you know it your brakes will be more effective during performance driving maneuvers. Yes this too is datalogging, hated by so many ricers, LOL.

Last edited by sjmarcy; 10-19-2010 at 03:44 PM.
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Old 10-19-2010, 11:00 PM   #2
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Here is another view…was dark so the viddie is a bit grainy…but you can see the important stuff and root cause.

http://www.youtube.com/watch?v=cKnEx0Y2ZZc
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Old 10-26-2010, 11:08 PM   #3
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Old 10-27-2010, 10:18 PM   #4
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Here is a strengthened brace…mostly the vertical issue now concerns me with this strategy…other approaches may bear fruit.

http://www.youtube.com/watch?v=GfpPNO9XS_M
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Old 10-28-2010, 01:50 PM   #5
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Here is the main source of flex. It's *not* the firewall.

http://www.youtube.com/watch?v=uhoGOfpUWDQ
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