Good info -- keep us posted as you break that thing in. What TT setup are you running? What kind of HP/torque?

 

Gtm stg 2 W/ open waste gates, stock internals. 8 psi-363 tq &420 hp/ 10 psi- 400 tq &458 hp/12 psi- 430 tq & 505 hp

 

Well, I went through my paper work and figured out that the pressure on the clutch is 1100kg.

 

good stuff Chris glad you got sorted on the alignment tool

the pressure plate clamp load on the aluminum cover, 215mm disk type is 1100kg. I have to search around and see what the stock HR pressure plate clamp load is - not sure if I've ever seen that info posted

you'll find that the engagement gets smoother and smoother as it's run in. Try doing around 400-500 miles on stop/go type driving, no launching, and avoiding solid speed cruising or full pull WOT runs. Once that's done, enjoy it!

 

Thanks for the info

 

so nobody knows the stock clamping load for the hr?

what about the de?

 

Found the clamping force for the DE to be 1936 lb or about 878 KG. Found it here:
http://www.*********.com/forums/lofi...hp/t37855.html

It may not be official, but I don't know otherwise. Wouldn't mind knowing for the HR also so I can compare with current aftermarket pressures.

EDIT: K, don't know why there's ** in the link supposed to be "350z- tech" where the ** are), but I just searched google "350z stock clamping force", 7-th link down.

 

Hey Adam, I noticed with mine that right around the ~500 mile mark the clutch became much more compliant (even with the UR pulley). No longer shutters below 1700 from a stop. It really has become a pleasure to drive......aside from the little added noise that was to be expected. 1st gear engagement has also become slightly less grabby.

 

good stuff!

 

So, if the clamping force is 1200 KG for the OSG Dual and the JWT clutch is 1200 KG, does the OSG have the same likelihood of causing the CSC to fail? I thought the pressure was lower in a dual.

The OSG would use the existing CSC right?
Excuse my ignorance on this stuff.

 

OS is 1100 I believe....

 

so... 1100 OSG, 1200 JWT, stock HR around 900 maybe?
exedy stage 1 and 2 1030kg..

 

For some reason I think the stock one is near 800 kg. I'll see if I can find where, but I thought I read the JWT was 50% stiffer, it feels a lot stiffer so its possible.

Edit - 370z plate is 880kg, and has a nifty self adjusting mechanism that I don't remember seeing on my stock plate.
http://www.370z.com/MagazineArticles...-Flywheel.aspx

 

If that's the case, I wouldn't mind trying the exedy + flywheel setup. I wouldn't be tracking or significantly increasing hp in my car that much anyways.

 

ok....... you are talking like the exedy wouldn't hold up to the osg or something. exedy is like the leading brand of clutches for imports. so you could still track the hell out of it and still get tons of hp out of it. i dont know maybe its just the way you made it sound was like you couldn't do those things with exedy clutch but you could with osg or something else.

 

then you should probably just leave it stock, as there won't be any point in upgrading

 

It's nothing against OSG or exedy. I was just looking at the pressure #'s. Lower the better I'm thinking, seeing as the CSC may be related to the pressure on the plates. Plus, dual plate clutches sound a bit extreme for a daily driver and for what I might do. And JWT seems to make me think fail, since it's what I hear more, even though there isn't too much to go by. Btw, you looking at the ATS for your setup or still looking for more options?


Z1, true, stock is a consideration. Although, if I replace it, wouldn't mind upgrading since the trans would be out. Didn't think the stage 1 + flywheel was that serious of an upgrade. Stock flywheel and clutch can be a bit pricey, but if the CSC fails w/ an aftermarket clutch, it's hard to say which is the better route for cost. I'm thinking it might be worth taking a chance? I'm not looking to buy one soon, so I'll keep my eyes open here.

I'm more interested in seeing if any other clutches come out that tries to tackle the CSC issue. I'm hoping ATS and stock are not the only options.

 

people have blown the CSC on stock clutches as well

sometimes things just happen based upon the luck of the draw

 

what are the symptoms of blown CSC ?

 

Clutch pedal fully stuck to the floor, and the clutch stuck "engaged" so you can't shift.