Manual to auto master cylinder upgrade - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

internetaardvark · 07-13-2006, 08:13 PM

I read a while back that the mc from an automatic s14 has a slightly larger piston diameter than the manual one does, so I figure it'll add a little more feed back and a stiffer pedal. But I have no Idea if there are any other differences between the two of them. I don't know if there will be any modifications needed or if the auto mc will just bolt right in to my manual s14. If anyone can answer these questions it would be appreciated, as my mc is on it's way out and I need to do something about it soon.

Jung918 · 07-14-2006, 01:27 AM

You can always pull the master cylinder out and turn the piston on the booster a little bit.

orion::S14 · 07-14-2006, 07:17 AM

Stock S13 and S14 5-speed BMC is 7/8" bore.

Auto and ABS is 15/16" bore.

Z32 is 1" or 17/16" bore.

I like the 15/16" BMC with Z32 brakes on all 4 corners...very solid, not too touchy.

- Brian

cosmoworks · 07-14-2006, 10:09 AM

Quote:

Originally Posted by internetaardvark

will just bolt right in to my manual s14.

The auto S14 mc will bolt right onto your S14.

-Cosmo

Jung918 · 07-15-2006, 11:09 PM

Did all the s13 autos come with abs?

projectRDM · 07-16-2006, 10:32 AM

Quote:

Originally Posted by Jung918

Did all the s13 autos come with abs?

Hell did that come from? No. Not even close.

aznpoopy · 07-16-2006, 01:00 AM

i have an auto 15/16 with stock brakes

its fine for daily, no problems

07-13-2006, 08:13 PM	#1
internetaardvark Leaky Injector Join Date: Jan 2005 Location: Massachusetts Age: 41 Posts: 61 Trader Rating: (0) Feedback Score: 0 reviews	Manual to auto master cylinder upgrade I read a while back that the mc from an automatic s14 has a slightly larger piston diameter than the manual one does, so I figure it'll add a little more feed back and a stiffer pedal. But I have no Idea if there are any other differences between the two of them. I don't know if there will be any modifications needed or if the auto mc will just bolt right in to my manual s14. If anyone can answer these questions it would be appreciated, as my mc is on it's way out and I need to do something about it soon. __________________ Everything is bullshit when your dumb

07-14-2006, 01:27 AM	#2
Jung918 Post Whore! Join Date: Oct 2003 Location: CA Posts: 3,203 Trader Rating: (2) Feedback Score: 2 reviews	You can always pull the master cylinder out and turn the piston on the booster a little bit. __________________ Sale: Hello Kitty Horn Button S14 Rear Valences K.Y. Gordon the Thief (Tony Chen)

07-14-2006, 07:17 AM	#3
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,666 Trader Rating: (0) Feedback Score: 0 reviews	Stock S13 and S14 5-speed BMC is 7/8" bore. Auto and ABS is 15/16" bore. Z32 is 1" or 17/16" bore. I like the 15/16" BMC with Z32 brakes on all 4 corners...very solid, not too touchy. - Brian __________________ www.KA24DEvelopment.com

07-15-2006, 11:09 PM	#5
Jung918 Post Whore! Join Date: Oct 2003 Location: CA Posts: 3,203 Trader Rating: (2) Feedback Score: 2 reviews	Did all the s13 autos come with abs? __________________ Sale: Hello Kitty Horn Button S14 Rear Valences K.Y. Gordon the Thief (Tony Chen)

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07-16-2006, 01:00 AM	#7
aznpoopy Post Whore! Join Date: Mar 2003 Location: New Jersey Age: 44 Posts: 5,013 Trader Rating: (1) Feedback Score: 1 reviews	i have an auto 15/16 with stock brakes its fine for daily, no problems