Does the R3C Clutch for MA70 need a Movement Alteration Kit?

OS Giken Japan lists release conversion parts as required with its R3C for the 7M-GTE MA70, but Turn 14 and OS Giken USA name no kit for the R3C Clutch for MA70 (TY011-CH5). Our team will confirm the release parts with OS Giken before the order is placed.

How much power will it hold?

OS Giken USA rates the R3C at about 1,100 lb-ft of torque, and OS Giken Japan places the R series in its 700 PS class. That is the top of the OS Giken clutch range, built for competition engines. Our team can help with any questions.

It is the OS Giken model code. R is the cover series, 3 is the number of discs and C is the 215mm disc size. There is no D in the code; the R series uses the OS Giken floating dampened center hub instead, built to withstand transmission shock.

Is it usable on the street?

It is a race clutch. Engagement is firm and abrupt, and it passes more noise and driveline shock than a street clutch. It can be driven on the road, but most owners fit it to cars used mainly at events or the track.

Can it be rebuilt when it wears?

Yes. OS Giken sells its R3C overhaul kits as OS021-CH50A, with new discs, center plates, pressure plate and cover bolts, and OS021-CH50B, which adds a new cover. Ask our team for either kit when the clutch needs service after hard use.

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Description

OS Giken R3C Clutch for MA70 Toyota Supra 7M-GTE, Triple Plate

OS Giken’s R3C Clutch for MA70 Supra models is the triple plate clutch from OS Giken’s R series, the highest capacity range OS Giken builds. Three 215mm discs run on OS Giken’s floating dampened center hub, which OS Giken USA says is built to withstand transmission shock and abuse from high-powered race cars, and the clutch is rated at up to about 1,100 lb-ft with the heat capacity to match. OS Giken USA says the R3C is often found in its own competition drift and drag vehicles.

Built for Competition Use

The R3C Clutch for MA70 cars is a race clutch first. Engagement is firm and it passes more noise and driveline shock than a street clutch, so it suits a 7M-GTE build used mainly at events. For a car that still sees regular road use, the TR2CD for MA70 is rated at about 800 lb-ft with a more forgiving pedal.

Release Parts to Confirm

OS Giken Japan lists the R3C for the MA70 7M-GTE with release conversion parts required. Turn 14 and OS Giken USA name no Movement Alteration Kit for TY011-CH5, so our team will confirm the release parts with OS Giken before the order is placed.

Features

Three 215mm clutch discs
R series cover with floating center hub construction
Rated by OS Giken USA at about 1,100 lb-ft
Built by OS Giken in Japan to be serviced and rebuilt

Applications

Toyota Supra: MA70 | 1987-1992 | 3.0L 7M-GTE turbo, R154 five-speed

Notes

OS Giken Japan lists release conversion parts as required with its 7M-GTE R3C; Turn 14 names no kit for this part number, and our team will confirm the release parts with OS Giken before the order is placed
OS Giken R3C overhaul kits are OS021-CH50A and OS021-CH50B
Installation labor is not included

Frequently Asked Questions

Does the R3C Clutch for MA70 need a Movement Alteration Kit? OS Giken Japan lists release conversion parts as required with its R3C for the 7M-GTE MA70, but Turn 14 and OS Giken USA name no kit for the R3C Clutch for MA70 (TY011-CH5). Our team will confirm the release parts with OS Giken before the order is placed.
How much power will it hold? OS Giken USA rates the R3C at about 1,100 lb-ft of torque, and OS Giken Japan places the R series in its 700 PS class. That is the top of the OS Giken clutch range, built for competition engines. Our team can help with any questions.
What does R3C mean? It is the OS Giken model code. R is the cover series, 3 is the number of discs and C is the 215mm disc size. There is no D in the code; the R series uses the OS Giken floating dampened center hub instead, built to withstand transmission shock.
Is it usable on the street? It is a race clutch. Engagement is firm and abrupt, and it passes more noise and driveline shock than a street clutch. It can be driven on the road, but most owners fit it to cars used mainly at events or the track.
Can it be rebuilt when it wears? Yes. OS Giken sells its R3C overhaul kits as OS021-CH50A, with new discs, center plates, pressure plate and cover bolts, and OS021-CH50B, which adds a new cover. Ask our team for either kit when the clutch needs service after hard use.

About OS Giken

OS Giken was founded in Okayama, Japan in 1973 by Masaharu Okazaki. It built the TC16 and TC24-B1 DOHC cylinder heads for Nissan L-series engines, began making multi-plate racing clutches in 1982 and started supplying OEM limited-slip differentials in 1983. Development of the Super Lock LSD began in 1997, and of the OS-88 sequential gearbox for the Skyline GT-R in 1998.

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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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OS Giken R3C Clutch for MA70 Toyota Supra 7M-GTE, Triple Plate [TY011-CH5]

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OS Giken R3C Clutch for MA70 Toyota Supra 7M-GTE, Triple Plate

Built for Competition Use

Release Parts to Confirm

Features

Applications

Notes

Frequently Asked Questions

About OS Giken

Reviews