1G Brake Master Cylinder

[TimG]

I did a search but couldn't find the information I need. My master cylinder is toast in my 92 TSi AWD and I need to find a replacement.

Mitsu ASA shows a few different options for my model car. I'm assuming I will need to order #3 or #4 but am unsure as to the difference. Again, I'm assuming abs vs non-abs but physically speaking, what's the difference if the bore size is 1"?

For what it's worth, I called Mitsu regarding pricing on these and the difference is $120 vs $175.

If anyone has any other suggestions for better master cylinders, let me know. My set-up is just a stock 2-piston brake with new pads and rotors. I called for pricing on the 3G master cylinder but Mitsu wants $300 for that so no.

-Tim

 

[Bud92gsx]

Funny how I was just reading this thread. http://www.dsmtuners.com/forums/dsm-build-journals/455110-92-gst-stealing-14b-record-build.html


Probably more info about masters/brakes,etc then I ever cared to know.

 

[kchaazz]

As far as Ive found, 15/16" is for the single piston brakes on early fwd/awd turbo cars. Im not certain of the differences between ABS and non ABS equipped cars regarding the master cylinder, but I do know that 1" is the preferred bore size for the dual piston brakes as that's what the car came with. On my car, Ive got a master cylinder from Advanced auto, and its just a 15/16" master with my two piston calipers, and honestly, it feels nice and Ive had it for years with no issues.

 

[TimG]

Well it looks like all these master cylinders are all interchangeable but the difference in prices makes me confused as to the actual differences. I'll likely end up ordering #4 in the list above. I'll report back if it works. I promise! There's too much information on this site without resolutions.

 

[kchaazz]

Well, as far as I have seen, they all will bolt up, except for the 7/8" one that I believe came on some of the 1G NT cars with the funky looking brake booster. If you want to get one for 40- 50.00, check out Advanced. I don't remember what brand I purchased, but it has lasted me years so far, trouble free and has a lifetime replacement warranty. One of the only parts store parts Ive ever seen actually work hehe...

 

[TimG]

Well that number didn't work. I can't believe it's this hard to source and locate a damn OEM brake master cylinder. I don't want to go aftermarket because OEMs last forever if taken care of. Anyone want to throw me a bone as to where I can buy a brand new OEM unit?

I found some shifty looking web pages with options but they don't state OEM nor provide part numbers to confirm.

Is there a difference between brake master cylinders between ABS and non-ABS cars? According to the web pages and Mitsu ASA, there is.