GT Motorsports: OS Giken Drivetrain Products for VQ37VHR

George@GTM

OS Giken is a premier Japanese manufacturer of aftermarket high performance products. We are proud to be able to offer these products to our customers and provide owners of the HR/VHR platform a true high performance clutch upgrade.

OS Giken Clutches

Through our research and development of high performance engines, we realized the need for the production of higher quality, more durable clutch systems to meet the rigorous demands of race and sport driving. Our OS multi-plate clutch is able to transmit engine revolutions and output to the drive train without loss. They are made of the highest quality materials and their durability is second to none. Our continual research and development has brought about many improvements since our multi-plate clutch line's original debut in 1983 and we are confident that our clutches can meet the demands of even the most heavily modified vehicles.

Distinctive Features of the OS Multi-Plate Clutch:

In spite of its decreased diameter, our clutch allows for extremely efficient power transfer and improved engine response. Our redesigned leverage mechanism of the diaphragm spring on the center cover results in higher pressure of the clutch disk while reducing pedal effort. In addition, ventilation holes are designed to reduce heat generated inside the clutch system and allows for the friction plate dust to exit outside the clutch system, thus increasing reliability and safety. All OS Giken clutches include a corresponding performance flywheel to ensure maximum performance and unlock your vehicle’s potential.


OS Giken Super Single Clutch
Our Super Single series make an ideal choice as a replacement to the original equipment clutch/flywheel and provide your vehicle with unparalleled response and race performance. The Supersingle clutch design is a product of our cumulative knowledge and experience in developing and refining our Racing Multiplate Clutch line.

Pricing and Purchase Information: OS Giken Super Single Clutch


OS Giken Twin Plate Clutch
-700 ft. lb. capacity (at the wheels)


Pricing and Purchase Information: OS Giken Twin Plate Clutch



OS Giken Triple Plate Clutch
-1,000 ft. lb. capacity (at the wheels)


Pricing and Purchase Information: OS Giken Triple Plate Clutch



OS Giken Quad Plate Clutch
-1,300 ft. lb. capacity (at the wheels)

Pricing and Purchase Information: OS Giken Quad Plate Clutch



OS Giken Super Lock LSD
OS Giken utilized its accumulated racing knowledge and engineering experience to develop its own limited slip differential. Four years of extensive research and development lead to a new and revolutionary LSD design with the capacity to house an unprecedented number of friction plates (up to 28 plates in total) and thus the OS Super Lock LSD was born. The increased number of plates directly has not only dramatically improved our LSD design's locking force and enables it to lock fully and completely. An added benefit to being a fully locking mechanism is that less heat is generated, thus resulting in incredible durability and reliability.

As expected from OS Giken, our LSDs are not only made from the highest quality materials, our precise machining, forged gears, and sound engineering makes our LSDs the most durable and reliable race performance LSDs available.

In addition, our design allows for the initial torque setting and lock timing to be customized to best fit you vehicle's everchanging set-up and course/road conditions. (Limited to Spec-X LSDs only)


Pricing and Purchase Information: OS Giken Super Lock LSD



-George
GT Motorsports

Slidefox

George,has OS Giken gotten these products into a 370Z in Japan yet?

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George@GTM

This clutch has been tested for the VHR engine by OS Giken, so it will work on a 370Z and G37.

-George
GT Motorsports

DIGItonium

I wonder what happens to SynchroRev when coupled with lighter drivetrain components (overrev?).

Crash

Good question. I really doubt that the rev-match works like that... I think that the RPM sensor is has a LOT higher resolution than the standard sensor and can detect the RPMs by far faster than it needs to. Yes, the lightweight components will rev faster, but the computer is still counting RPMs a and calculating timing faster than it will ever need to.

I'm positive that they don't have any sort of static timing setup as motors all rev at different speeds (no matter how close they seem). One motor may rev from 500-5000 0.3 seconds faster than the other. So a static math table wouldn't be possible. Instead, a dynamic math formula needs to be written that takes rev-time, RPM, shift speed and rev-per-nanosecond into account.

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George@GTM

It won't be affected because it controls the target RPM via the drive by wire, it will just rev-match faster

-George
GT Motorsports

Crash

^^^ Wow... That was a lot easier to say than what I said.

Hey, George. For that 450WHP I want to make with your turbo kit, will that stock clutch hold up? Or will I need to throw in a performance clutch?

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2002 Corvette Z06 - Totaled
2003 Corvette Z06 50th Anniversary

George@GTM

If you baby it, it might last for a little while.

I would recommend at least the stage 1 OS Giken clutch.

You can always get it later though when the stock one gives out if you'd like.

So when are you dropping off the Z?

-George
GT Motorsports

Black kNight

but is it only clutch !!!
or clutch + flywheel ??

Crash

Gotcha. Sounds good to me..

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2002 Corvette Z06 - Totaled
2003 Corvette Z06 50th Anniversary

tvfreakazoid

so how long and how much will it take to install these components?

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Black kNight

i think it may take 2 hours not sure