Is an accessory kit required for this EXEDY Hyper Twin Organic Clutch?

Yes. EXEDY sells a Hyper Series Accessory Kit separately for every Hyper Series clutch, and HCAK102 is the kit EXEDY names for this Hyper Twin Organic Clutch on the NSX. Order it with the clutch so the parts EXEDY lists for a full installation are ready when the transmission comes out.

How much torque does the Hyper Twin Organic Clutch hold?

EXEDY lists 596 lb-ft of clutch torque capacity and about 340 lb-ft at the wheels for HMG12SD, with a clamp load of 1,765 lb. That capacity is aimed at a heavily modified NSX; a car with mild bolt-ons will not use it and will be happier with a single-disc clutch.

Why does this clutch use sprung discs?

The springs in each hub absorb shock and engagement harshness in the driveline. EXEDY fits sprung discs to multi-plate clutches meant for high-powered street and race cars, which makes this version of the NSX clutch more tolerable in traffic than a rigid-disc unit.

How does an organic twin differ from a cerametallic twin?

Organic facings engage progressively and are quieter, which suits a car that is driven on the road as well as tracked, while cerametallic pucks tolerate more heat and abuse. EXEDY offers both, and the organic twin is the gentler choice for a high-powered NSX that still sees regular street use.

Does the kit include a flywheel?

Yes. The kit pairs the clutch with a lightweight chromoly steel flywheel. EXEDY integrates the ring gear teeth into the flywheel rather than pressing on a separate ring, tests its lightweight flywheels to 15,000 to 18,000 rpm and lists them as SFI approved, and the flywheel can be resurfaced at a later service.

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Description

EXEDY Hyper Twin Organic Clutch for NA1 Acura NSX

EXEDY’s Hyper Twin Organic Clutch for NA1 Acura NSX is a strap-drive twin with organic facings and sprung hubs, rated by EXEDY at 596 lb-ft of clutch torque. It suits a supercharged NSX that is still driven on the road, where the organic facings keep engagement smooth.

Design and Performance

Organic facings give progressive engagement and a quieter clutch than EXEDY cerametallic twins, while a patented cushion function creates a half-engaged zone that keeps pedal effort light for a twin-plate. The forged aluminum cover is stiffer than a stamped steel one, and EXEDY assembles each multi-plate clutch by hand before checking clamp load and release.

Features

Two organic friction discs on sprung center hubs
Organic facings for smoother engagement than a cerametallic twin
Purple anodized forged aluminum cover
Lightweight chromoly flywheel with integrated ring gear teeth

Specifications

Disc diameter: 200 mm
Cover type: Pull type
Clamp load: 1,765 lb
Clutch torque capacity: 596 lb-ft
Torque capacity at the wheels: 340 lb-ft

Applications

Acura NSX: NA1 | 1991-1996 | 3.0L C30A

Notes

The EXEDY Hyper Series Accessory Kit is required for installation and is sold separately

Frequently Asked Questions

Is an accessory kit required for this EXEDY Hyper Twin Organic Clutch? Yes. EXEDY sells a Hyper Series Accessory Kit separately for every Hyper Series clutch, and HCAK102 is the kit EXEDY names for this Hyper Twin Organic Clutch on the NSX. Order it with the clutch so the parts EXEDY lists for a full installation are ready when the transmission comes out.
How much torque does the Hyper Twin Organic Clutch hold? EXEDY lists 596 lb-ft of clutch torque capacity and about 340 lb-ft at the wheels for HMG12SD, with a clamp load of 1,765 lb. That capacity is aimed at a heavily modified NSX; a car with mild bolt-ons will not use it and will be happier with a single-disc clutch.
Why does this clutch use sprung discs? The springs in each hub absorb shock and engagement harshness in the driveline. EXEDY fits sprung discs to multi-plate clutches meant for high-powered street and race cars, which makes this version of the NSX clutch more tolerable in traffic than a rigid-disc unit.
How does an organic twin differ from a cerametallic twin? Organic facings engage progressively and are quieter, which suits a car that is driven on the road as well as tracked, while cerametallic pucks tolerate more heat and abuse. EXEDY offers both, and the organic twin is the gentler choice for a high-powered NSX that still sees regular street use.
Does the kit include a flywheel? Yes. The kit pairs the clutch with a lightweight chromoly steel flywheel. EXEDY integrates the ring gear teeth into the flywheel rather than pressing on a separate ring, tests its lightweight flywheels to 15,000 to 18,000 rpm and lists them as SFI approved, and the flywheel can be resurfaced at a later service.

About EXEDY

EXEDY Corporation of Neyagawa, Osaka, traces its clutch business back to 1923 and built its name as Daikin Clutch before adopting the EXEDY brand. It is a leading original-equipment maker of clutches and powertrain parts, and its racing line supplies Hyper Series multi-plate clutches for drag, circuit and rally use. EXEDY Globalparts Corporation, its wholly owned US subsidiary, supports the range in North America.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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EXEDY Hyper Twin Organic Clutch for NA1 Acura NSX [HMG12SD]

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EXEDY Hyper Twin Organic Clutch for NA1 Acura NSX

Design and Performance

Features

Specifications

Applications

Notes

Frequently Asked Questions

About EXEDY

Reviews