Which master cylinder do I get? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-22-2004, 01:05 AM   #11
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The 6" MC has a bore of 25.5mm and a stroke of 34mm. I measured the one I pulled from the 94 (I knew I wanted that for a reason besides just the res).
Giving it a surface area of 80.110612666539727580797406273627 square mm'*,
and a volume of 2723.7608306623507377471118133033 cubic mm'*.
((d*pi)*l)

Assuming the the 8" MC has the same bore but an increased length stroke, it'* got an 84.8mm stroke. By that reasoning it'* a got a volume of 6793.3799541225688988516200520036 cubic mm'*.

That'* a difference of 4069.6191234602181611045082387006 cubic mm'*!!
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Old 09-22-2004, 08:27 AM   #12
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Well I measured the MC and she'* a 6 incher. Got the one with the reservoir at Advance Autoparts for around 60 bones. Works like a charm. No more leaky.
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Old 09-22-2004, 06:31 PM   #13
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Cool. You've got a 6"...

However, I'm still wondering the difference between vehicles requiring these different units, or measurements of the GM Unit.
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Old 09-22-2004, 09:01 PM   #14
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bigger equals better. At least that'* what i'm going to say.


-justin
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Old 09-22-2004, 09:07 PM   #15
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Nope, Not with brakes.

read the tech articles at www.teamscr.com Great guys, GM too.
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Old 11-09-2004, 04:39 AM   #16
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How much is a master cylinder? My brake fluid keeps running out each month and I have a feeling its the MC leaking because thats what Ive been told here I believe.
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Old 11-09-2004, 07:36 AM   #17
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Quote:
Originally Posted by CmptrNerd
How much is a master cylinder? My brake fluid keeps running out each month and I have a feeling its the MC leaking because thats what Ive been told here I believe.
Go back 5 posts and there'* your answer.
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Old 11-09-2004, 11:49 PM   #18
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lol thanks!
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