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Master cylinder upgrade question..
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Old 08-11-2011, 02:53 PM   #21
mrpersonality
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all this making me not want to convert from drum to disk in the rear

on the bright side there are a couple svx's at the local junk yard i could find the model years/specs and take a look if anyone's in need?

only brake upgrade i did was from stock obs front rotor/calipers to what i believe to be a 98 legacy 2pot but that vehicle has since been smooshed at the junkyard so i'm unsure. will pull p/n so i can figure this out myself.
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Old 08-11-2011, 04:40 PM   #22
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I mean my car is perfectly driveable... I still dd it. Really excited to upgrade the master. Just need to figure out to which one..
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Old 08-12-2011, 05:26 AM   #23
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Is an 05 RS a 1" bore? Would it be worth while to go up to the STi 1 1/16" bore?
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Old 08-12-2011, 06:12 AM   #24
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You'll probably have an issue with the dual stage sti booster being differebt then the rs one.. I don't think rs ever came with a dual stage booster
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Old 08-12-2011, 06:21 AM   #25
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Quote:
Originally Posted by 1055 View Post
You'll probably have an issue with the dual stage sti booster being differebt then the rs one.. I don't think rs ever came with a dual stage booster
Dual stage meaning two outputs from the side of the cylinder?
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Old 08-12-2011, 06:43 AM   #26
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No the booster itself. Single stage and dual stage booster. Basically two different diaphragms granting two different pressures throuh the pedal cycle.
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Old 08-12-2011, 06:49 AM   #27
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Quote:
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No the booster itself. Single stage and dual stage booster. Basically two different diaphragms granting two different pressures throuh the pedal cycle.
OK, so the cylinder will bolt up but the booster may not? I am pretty sure I already have a 1 1/6" cylinder stock. Is there anyone who can confirm if this would work on an auto RS?
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Old 08-12-2011, 06:51 AM   #28
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if you look at the side of the cylinder the bore should be imprinted on it
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Old 08-12-2011, 07:00 AM   #29
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If it is indeed a 1 1/16th" cylinder, will the STi booster work as well?
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Old 08-12-2011, 06:01 PM   #30
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ABS units are dual stg booster. my non-abs is single stg. you can see the thickness difference
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