Nissan 370Z Forum - Z1 Motorsports: Clutch Concentric Slave Cylinder Elimination Kit

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Z1 Motorsports: Clutch Concentric Slave Cylinder Elimination Kit

Z1 Motorsports Clutch Concentric Slave Cylinder Elimination Kit

https://www.z1motorsports.com/images...n-6b69473f.jpg

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.

https://images.z1motorsports.com/ima...nation+Kit.jpg

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 fluid options. Transmission fluid replacement is recommended but not mandatory for the installation of this kit.
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.

Click Here To Order. Pricing starts at $418!

Pretty sick

Sent from my SCH-I545 using Tapatalk

how hard is this to install?

can this be a diy with a pair of jackstands?

Quote:

Originally Posted by Redglare (Post 2734748)

how hard is this to install?

can this be a diy with a pair of jackstands?

Comprehensive install information:
http://www.z1motorsports.com/upload/...ic%201.0.3.pdf

Ordered. Good thing i waited on pulling the trigger on the HD CSC.

Subd

Sent from my iPhone using Tapatalk

I had this installed by Z1 a couple weeks ago, and I just did my first full track day with this setup (my car is a track only car) and it works great! Also, while I can't specifically quantify it, it seems to have a better feel than before with a more positive indication of the engagement point.

I am extremely happy with it and can highly recommend this product.

Thanks Redsmoke89! Mike, it's always a pleasure!

Sweet! Added to my list of "to buy" :tup:

Quote:

Originally Posted by LMBmikeZ (Post 2743789)

Sweet! Added to my list of "to buy" :tup:

Very good to hear!

I guess I'm going to have to plan a trip to Z1 to get this done. Might as well have them put in a new clutch, pressure plate and surface the flywheel while it's apart. John, could you PM me a ballpark guess for all this including replacing the CSC? Thanks.

Quote:

Originally Posted by Ghostvette (Post 2744982)

Sorry for the late reply. PM me your info so that I may get a solid quote!

Thanks,

Jon

definitely going to do this when i switch my clutch out here in a few months

Quote:

Originally Posted by LukasC (Post 2757688)

definitely going to do this when i switch my clutch out here in a few months

Please update the forum when it's completed. We all love to have feedback.

Quote:

Originally Posted by John@Z1 (Post 2757667)

Sorry for the late reply. PM me your info so that I may get a solid quote!

Thanks,

Jon

PM sent. Thanks

Quote:

Originally Posted by Ghostvette (Post 2761585)

PM sent. Thanks

Thank you sir!

Got all my parts in the mail while I was on a business trip, just gotta set a day to get it all done and ill update everyone on how it feels with a Spec stage 1 clutch and flywheel.

Quote:

Originally Posted by Redsmoke89 (Post 2775194)

Got all my parts in the mail while I was on a business trip, just gotta set a day to get it all done and ill update everyone on how it feels with a Spec stage 1 clutch and flywheel.

Thanks for the purchase and we look forward to the feedback as we have never used a Spec clutch.

Just got my Z1 CSC elimination kit installed, will put up a review in a few weeks after my first auto X day and break in period, so far it is an awesome increase in quality!

Question...what are the pros/cons as compared to the after market CSC's offered? In other words why get this elimination kit as opposed to the aftermarket CSC's?

I really like the idea just like being informed.

Also, do you recommend staying stock clutch with aftermarket flywheel?

Quote:

Originally Posted by cavemancan (Post 2791247)

The good thing about this kit is you can use it with either one of those set ups with the main advantage being no more pulling a transmission when a CSC fails on you. It also gives you a firm pedal feel.

Quote:

Originally Posted by John@Z1 (Post 2793824)

Thanks for the input! Pedal feel alone justifies the cost for me.

This will mark the 3rd time the slave/master cylinder will need to be replaced on my car. 2 of which were under warranty. This last time I am out of factory warranty and I am left with my extended warranty but they are telling me it is not covered. Either way I think I am going to forgo the drama and just buy this. Have to save some pennies for the whole setup though. I plan to change the clutch, flywheel, CSC, and Master cylinder.

Last 3 question(s):
- Do you recommend rebuilding the master cylinder or replacing? I saw a rebuild kit for $18 which is better then paying $110 for a new one.
- Do you guys sell stock clutches? I plan to race the car NA but keep it a daily driver.
- Any suggestion for an upgraded clutch? I may consider an upgrade just trying to keep cost down.

Quote:

Originally Posted by cavemancan (Post 2794522)

This will mark the 3rd time the slave/master cylinder will need to be replaced on my car. 2 of which were under warranty. This last time I am out of factory warranty and I am left with my extended warranty but they are telling me it is not covered.

Please report your experience to Nissan North America. The more reports, the better chance they might actually address the issue. It's stupid that this isn't a recall already.

These thing look awesome....

Quote:

Originally Posted by wheee! (Post 2800883)

These thing look awesome....

Thank you sir!

Quote:

Originally Posted by EVOR (Post 2801795)

Need a set soon

Hit us up at any time!

Quote:

Originally Posted by cavemancan (Post 2794522)

Just wanted to see if you saw these questions...

:iagree:

John, can you please explain the pros/cons of the CMC rebuild kit vs buying a new assembly?

Quote:

Originally Posted by cavemancan (Post 2808480)

Just wanted to see if you saw these questions...

I missed those :(

Originally Posted by cavemancan View Post
Thanks for the input! Pedal feel alone justifies the cost for me.

This will mark the 3rd time the slave/master cylinder will need to be replaced on my car. 2 of which were under warranty. This last time I am out of factory warranty and I am left with my extended warranty but they are telling me it is not covered. Either way I think I am going to forgo the drama and just buy this. Have to save some pennies for the whole setup though. I plan to change the clutch, flywheel, CSC, and Master cylinder.

Last 3 question(s):
- Do you recommend rebuilding the master cylinder or replacing? I saw a rebuild kit for $18 which is better then paying $110 for a new one.
- Do you guys sell stock clutches? I plan to race the car NA but keep it a daily driver.
- Any suggestion for an upgraded clutch? I may consider an upgrade just trying to keep cost down.

Rebuilding or replacing the master cylinder is never a bad idea on the Z34 as they are known to have problems. I will say that we have never had to replace the master on the Z1 shop car and it has 36K ABUSED and track tested miles.

I would suggest the Z1 clutch and flywheel combo over going with a stocker as the Z1 flywheel will allow for quicker revs.

Quote:

Originally Posted by JARblue (Post 2808492)

:iagree:

John, can you please explain the pros/cons of the CMC rebuild kit vs buying a new assembly?

I'm a busy guy which means I would just buy a new one to install as time is not a very big thing that I have on my hand. If you have a little garage time for yourself the rebuild kit may be the best for you.

Quote:

Originally Posted by John@Z1 (Post 2809478)

Thanks for the response, John. I understand. I'm convinced my CSC is going to fail soon, as well, so I'm probably just going to order your kit asap.

Can you please PM me a price for the CSC elimination kit plus an OEM CMC assembly shipped to 78731? It looks like the kit comes with a SS clutch line, but if not, please include that as well. I can't think of anything else, but if there is something you think of that would be good to go ahead and do while the transmission is out, let me know (I'll be good with the stock clutch for a while).

Thanks :tiphat:

Quote:

Originally Posted by JARblue (Post 2809508)

Thanks for the call sir!

Quote:

Originally Posted by John@Z1 (Post 2809471)

I missed those :(

Originally Posted by cavemancan View Post

Last 3 question(s):
- Do you recommend rebuilding the master cylinder or replacing? I saw a rebuild kit for $18 which is better then paying $110 for a new one.
- Do you guys sell stock clutches? I plan to race the car NA but keep it a daily driver.
- Any suggestion for an upgraded clutch? I may consider an upgrade just trying to keep cost down.

Rebuilding or replacing the master cylinder is never a bad idea on the Z34 as they are known to have problems. I will say that we have never had to replace the master on the Z1 shop car and it has 36K ABUSED and track tested miles.

I would suggest the Z1 clutch and flywheel combo over going with a stocker as the Z1 flywheel will allow for quicker revs.

John,

Thanks again for the help!

Can you quote the following to 33186
- CSC elimination kit
- Z1 clutch/flywheel combo (Does this include the clutch/flywheel install tool? If not please include)
- Steel braided clutch line (Is this included in the CSC kit? If not please include)
- Trany fluid and crush washers (redline)
- Diff fluid and crush washers (redline)

Am I missing anything?

Thanks!

Chris

P.S. Can you include wheel spacers? 20mm rear and 15mm front.
P.S.S What is the difference between the standard full face and lightweight solid hub full face aside from the obvious weight savings?