Hey guys quick question are the master cylinder's the same for the brembo and non brembo z's or are they different. Also same goes for the brake booster???

 

Nope - different. Many have upgraded to Brembo or other BBK without any issues as a result of not swapping the MC or booster.

 

i went from my non-brembo brakes to brembos, and kept my master cylinder. no issues ('07 base model Z)

 

Do the 06+ Brembos differ from 03-05?

 

Interesting cause mine took a **** just recently after install maybe just a coincidence.

 

Why not consider upgrading to Wilwood!!???

 

can someone post links to these items and/or list part numbers?

i am going to upgrade. my setup (r35) works just fine for street
driving on an oe mc/bb from '03. to track i'd like to upgrade for
prevention's sake.

 

Here you go:


Wilwood :
http://www.wilwood.com/MasterCylinde...erLanding.aspx

Aluminum Tandem Master Cylinder 7/8" Bore Size
Part Number: 260-9439-BK
Price: $216

Aluminum Tandem Master Cylinder 1.00" Bore Size
Part Number: 260-8555
Price: $216

REMOTE MASTER CYLINDERS
http://www.wilwood.com/MasterCylinde...ter%20Cylinder

 

Prevent what?

 

Dave - my existing master cylinder from failing under more extreme driving conditions.

how can i determine which model/bore size to use?

 

There are probably a thousand members here who have upgraded to Brembos or some other BBK and I'd bet less than 10 have done any kind of MC/booster upgrade. I've only seen one thread about doing the upgrade. We're talking about lots of people who track and even race the Z.

I doubt that upgraded brakes would have anything to do with MC failure anyway.

The FSM lists the MC specs.

 

I'm not aware of any need for an mc change nor of any difference in bore size (and size doesn't make one better or worse than another) in the two cars. Granted I may be wrong on that but unless someone shows me a stock spec sheet I'm believing they are the same size.

While the Wilwood parts might look better (and be happy to help you get one) being of the same size won't change the function. Being of an alternate size won't make it better or worse. And certainly won't assure you of any 'failure' beyond what you have now....unless it's somehow terribly f'd up now; in which case I think you're know.

Which one to use: probably the one you have in the car now and buy a brake kit intended to be used with it and be done with it all.

 

You are correct, the bore is the same. I believe the difference is in the booster IIRC

 

i have some valid concerns about very high speed braking.

any thoughts on what size mc the r35 has? i've looked quite a bit,
but not found anything as yet.

 

Master cylinder diameters (measured in larger tandem bore) --

350Z standard brakes: 1-1/16"

350Z Track model (Brembo): 1-1/16"

370Z (all brake systems): 1"

G35 standard brakes: 1"

G35 Track model (Brembo): 1-1/16"

G37 (exc. Sport brakes): 1" or 15/16" depending on model variant

G37 w/Sport brakes: 1" or 15/16" depending on year

R35 GT-R: 1-1/16"


Chris

 

While only relating to the older car, that's interesting. The goal I suspect would be to have the standard G35 be softer and require less effort thus catering to the "more refined Infiniti driver" (ie. women? older? less sport minded? owners) Yet the Track model immediately goes back to the larger bore for a more firm and responsive formula.

I'd have to suggest that those with big brakes and the smaller bore might prefer the larger model- but expect to have to push a bit harder to make them work.

 

That's about the same conclusion I came to. The 350Z driver is probably considered more of a "youthful, sporty type" by the product planners as compared the target market for the G35. But when the G buyer checked off the Track Model box, he was given the firmer pedal like the Z guy. I'll talk to the guys that were on those programs next week to see what their thoughts were. But, then again, it usually costs me a lunch or two... or three!

Chris

 

this is all very interesting. i wonder if the r35 unit is of different manufacture