OS Giken Grand Touring Twin Plate Clutch

roplusbee

It's kinda up in the air now. If Zerolift can get it soon, I will be running this clutch. If not, Competition Clutch will be the winner. Link below.

Products

__________________
2007 350Z NISMO #0618: Zerolift | UPREV | F.I. | Greddy | Competition Clutch | Injector Dynamics | Aeromotive | Pioneer | JL

zzdudaka

Mine has been at the shop being installed since last week :|
The shop must have gotten busy or something cause it has been a week and a day now. As soon as I get my car back I will share.

__________________
Happy Z Motoring! zzdudaka
2010 40th Anniversary 370Z #357

wheee!

Awesome! Hope you get it back soon and post up your impressions!

__________________

FortuneLSX-TT

I know one of them is...

My thoughts:
A clutch alignment tool would of been a nice addition to the kit.

I was cross eyed after tightening all the bolts... I'd highly recommend labeling the bolts to ensure you follow the proper pattern. Installed the clutch, went to go bleed the system, and it was just never able to get the right feel to it.

After looking into it, my CSC had failed. Z1 worked with Zspeed and was able to get me one of their HD CSCs pieced together with a quickness. Got the new CSC in, bleeding was easy and straightforward.

Never really drove the Z around with the turbos without the clutch, so keep that in mind. I was going to wait and get all the use I could out of my stock clutch, but after realizing how big of a pain it was to pull the motor and trans I decided to upgrade while it was all out. I wish I would of decided to upgrade the CSC from the beginning, because that would have saved me pulling the trans a second time.

As far as how well it holds the power. Absolutely zero complaints, it seems to handle all the power the turbos are throwing at it so far. It was certainly a lot grippier than stock. The car felt much quicker with the clutch/flywheel. (I did have a period where I had a massive boost leak, so I was technically NA for the shakedown run)

Then comes the true beauty of the clutch, how easy it is to live with. After driving on it for around 5k miles or so, I can happily say that my left leg has barely noticed any difference.

The combo does have a decent amount of chatter, and a few people have thought something was "wrong" with my car because it was making odd "noises".

Bad news is now my master cylinder appears to be going. I will have full pedal feel in the morning when I drive to work. Occasionally by the afternoon I'll only have a few inches of pedal, but after half an hour of driving, the pedal feel will be back to full.

Cliff Notes:
Seems to be able to hold the power of a TT with no issues
Very driveable and easy to live with
Some chatter - to be expected
Stock CSC went on me
Pricey

So if you want a clutch that can handle a lot of power and still retain its streetability with a bit of noise...then this isn't a bad option if its within your budget. I'd recommend the upgraded CSC while you're at it though.

roplusbee

Great info. I will either get this one or the Competition Clutch. Hopefully, Zerolift gets a good bead on the OS Giken. I have had outstanding results with them in previous vehicles.

__________________
2007 350Z NISMO #0618: Zerolift | UPREV | F.I. | Greddy | Competition Clutch | Injector Dynamics | Aeromotive | Pioneer | JL

wheee!

Could it still be air in the clutch line?

__________________

conmam

I hope this GT clutch does come with a special heavy duty throwout bearing kit because I am not about to use the factory set up, which is plastic junk.

Please advice

Thanks

1slow370

nope you are on your own for the hydraulics, be advised that you need to order the correct aftermarket replacement for an os twin plate.

__________________
ANSWER PRICE LIST
Answers - - - - - - - - - - - - - - - - $0.75
Answers (requiring thought) - - - - $1.25
Answers (correct) - - - - - - - - - - $12.50

Ill

Three year necro. Nice

__________________
Old - GTM TT Stage 1 - 487whp / 415wtrq - bunch of goodies.

New - 2011 Shelby GT500 - 2.3L VMP TVS - JLT CAI.

conmam

Thanks for the advice. I will stick with Specialty Z street turbo clutch package. Much cheaper and no chatter. Only about 10% stiffer than factory, according to how I feel.

The reason I was considering the OS Giken was just to try a different clutch to see whether or not that helps on the pedal stiffness.... but the cost , in my opinion, is not worth it now that I might have to spend another $300 for another CSC assembly.

Elmo370z

NO matter how good a clutch system is. You need to replace the CSC along with the master cylinder is what I"m getting from reading all these threads about clutches.

1slow370

Yup the csc is gonna die no matter what, and if u change the flywheel i garuanty you will get chatter no matter what flywheel it is.

__________________
ANSWER PRICE LIST
Answers - - - - - - - - - - - - - - - - $0.75
Answers (requiring thought) - - - - $1.25
Answers (correct) - - - - - - - - - - $12.50

conmam

Oh yeah, the specialty Z street clutch does come with a custom billet CSC assembly. Factory CSC really sucks and up until now I still don't understand why Nissan or any manufacturers with their right mind would use plastic material on the CSC assembly.....