Z1 CSC Fix Out
 

not sure if this has already been posted..

Z1 Motorsports Clutch Concentric Slave Cylinder Elimination Kit

With over a year in development and testing, Z1 Motorsports is now proud to offer a comprehensive, bolt on solution to the OEM clutch concentric slave cylinder for cars equipped with manual transmissions mated to VQ35HR and VQ37VHR engines. Thorough analysis and modeling of the factory clutch system's dynamics led to the development of an innovative kit that completely eliminates the failure-prone concentric unit, replacing it instead with a traditional release bearing mated to a Howe Racing pull-type slave cylinder.
Due to the repeated exposure to high temperatures and the high operating pressure of the factory concentric system, it has been considered a weak point of the HR+ platform’s revised drivetrain. These failures are definite, and the symptoms obvious; whether it’s pushing the limits on the track, driving hard on backroads, or simply commuting – if the clutch pedal sinks to the floor during a shift and doesn’t return, the concentric slave cylinder is the likely culprit.
Armed with an extensive list of design goals, product requirements, and functional benchmarks, the only solution was a no compromises approach. The Z1 Motorsports Concentric Slave Cylinder Elimination Kit has been extensively torture tested on the street and the track, and is completely CAD/CAM engineered as a bolt on solution to common clutch concentric slave cylinder failures, with no permanent modification to the drivetrain.

Standard VQHR+ CSCEK features:

Howe Racing Pull-type Cylinder:
Constructed of lightweight CNC machined aluminum and hard anodized black, this pull-type slave cylinder uses two dynamic bore seals, a preloaded return spring, and features zinc coated hardware and rod ends for seamless function and maximized longevity.

Dust and Heat Shields:
Laser cut from stainless steel and precision CNC bended to specification, these auxiliary brackets are included for the peace of mind and reliability that comes from keeping dust and dirt out of the bellhousing and keeping road debris and exhaust heat away from the slave cylinder.

Mounting Solutions:
Laser cut and CNC formed and machined, the mounting bracket and fork clevis were designed with the explicit goal of function. Several iterations of optimizing for stiffness and fatigue life resulted in the final revision, that features Class 8.8 zinc plated fasteners and no unwanted deflection.

Clutch Ergonomics:
Paired with the late-model heavy duty cast fork and a braided stainless steel clutch line, a properly installed and adjusted VQHR+ CSCEK will feel natural, with virtually no slop even under the most rigorous situations.

Inspected, assembled, re-inspected and packaged in house by Z1 Motorsports’ trained staff, the VQHR+ CSCEK arrives ready to install on your Z or G out of the box. In the dropdowns below, indicate the clutch that will be used, as well as any clutch and transmission fluid options.



To view a complete copy of the Installation Manual for the Z1 Motorsports Concentric Slave Cylinder Elimination Kit, please download the PDF document Here.



Please note: Product will ship in 1-2 weeks.

Very nice. I saw this a while ago on their FB page. Glad to see an awesome solution come out!

:tup:

I wonder how this compares to the HD CSC that I just bought...

I literally just ordered the Z Speed unit through them today lol. Oh well.

:iagree:

It was about time someone release this kit which make me remember of a company that also had a similar design but they were only selling it for their clutch/flywheel in 2007/2008 for a price of a leg and arm....

418$ is pretty reasonable ! I know what I'm getting for 2015 ! ;)

I would try anything aftermarket after experiencing oem failure at under 12k miles. I would also consider replacement now rather than waiting for failure.

I believe all aftermarket CSCs are basically the same, from my knowledge, there is only one company who makes the piston that fits our cars

Please do share and enlighten us. I'm interested to learn more. :tup:

not with the Z1 kit, they are switching it back to the old 03-05 350z external slave cylinder and throwout bearing as opposed to the Zspeed and OEM which has the throwout bearing and slave cylinder intergrated into one piece(aka concentric slave cylinder)

JWT was telling me its completely possible to build this yourself using factory 350z parts since the 370z tranny has all the mounting points and such for the slave cylinder, just not drilled and tapped or something like that but it would take a lot of R&D to make happen

eitherway going with this unit or the Zspeed unit, you will have to change your CMC if you experienced a CSC failure, if you dont you will only break the new slave cylinder with contaiminated fluid inside the CMC(which will eventually kill the CMC)

Ohhhhhhh, it's external.


Carry on then

I've read the same thing several places, if you Google "Concentric Slave Cylinder" they're used on a wide variety of cars, and most performance guys have to replace them and complain loudly.
Other users that aren't performance drivers I reckon go quite a while without replacing them, the golden rule applies here too, "Only the ones who replace them complain", the rest of them are simply ignorant and drive the car and have no problems. If they do they aren't on these forums.

you must call DE for further details...

John started a thread this morning :tup:

http://www.the370z.com/drivetrain-en...ml#post2734704