Which cars does the Type RS 1-Way Front LSD for P11 fit?

Cusco USA lists part number LSD 185 F for the Infiniti G20 (P11, P10, 1991-2002). The Type RS 1-Way Front LSD for P11 replaces the factory front differential, so check the notes on this page for any model or transmission limits before ordering.

What does 1-way mean?

A 1-way LSD locks only under acceleration. When the driver lifts or brakes it stays open like a factory diff, so the car turns in and rotates freely off the throttle. It is the most forgiving setting for a car that is also driven on the street, and the least likely to make the car push on corner entry.

How does the Type RS differ from the Type MZ?

The Type RS sets its initial torque with coil springs that push in the same direction as the activation pressure, so it engages smoothly and quickly with a lower initial torque. The Type MZ uses a high-pressure cone spring, giving it the highest initial torque of any Cusco LSD and a stronger, more linear lock suited to competition.

Can the LSD be rebuilt?

Yes. The friction plates in any clutch-type LSD wear over time, and Cusco supplies service parts such as replacement plate sets for its units, so the Type RS 1-Way Front LSD for P11 can be overhauled rather than replaced. How often depends on use; a car that sees regular track or drift days will need it sooner than a road car.

What should I know before installing it?

On a front differential the transmission must be removed and split to fit the Cusco unit, so most owners have a drivetrain specialist do it. Plan on fresh gear oil, since Cusco sells its own LSD oil for clutch-type differentials, and read the notes on this page for any extra parts Cusco says the job needs.

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Description

Cusco Type RS 1-Way Front LSD for P11 / P10 Infiniti G20

Cusco’s Type RS 1-Way Front LSD for P11 / P10 Infiniti G20 replaces the factory front differential with a clutch-type limited-slip unit that uses coil springs to set its initial torque. In 1-way form it locks under acceleration only and stays open off the throttle, so turn-in feels close to stock. Engagement is smoother and quicker than Cusco’s MZ series, and the low initial torque keeps tight turns easy when the diff is not working. Choose it for a road car that also sees track days.

Design and Performance

Small RS springs inside the pressure rings load the clutch plates before any drive torque arrives. Because they push in the same direction as the initial torque, the plates engage quickly and progressively, and adding or removing springs moves the initial torque up or down. Under power the cams add locking force in step with torque, so the Type RS 1-Way Front LSD for P11 holds the driven wheels together harder as the engine pulls harder.

Features

Coil-spring initial torque system with RS springs inside the pressure rings
1-way action: locks on acceleration only
Smoother, quicker engagement than the Cusco MZ series
Clutch-type multi-plate design in place of the factory front differential
Built for the G20

Specifications

Cusco part number: LSD 185 F
Type: Type RS
Action: 1-way
Cusco setting: 1 way (Two Different 1-way Ramp Set)
Cusco case size: C-size
Position: Front differential

Applications

Infiniti G20: P11 | 1999-2002 | 2.0L SR20DE I4, Front Wheel Drive
Infiniti G20: P10 | 1991-1996 | 2.0L SR20DE I4, Front Wheel Drive

Notes

Fitting the Type RS 1-Way Front LSD for P11 means removing the transmission and splitting it to swap the differential; installation labor is not included
Cusco: Direct replace with OE Viscous LSD (MT)

Frequently Asked Questions

Which cars does the Type RS 1-Way Front LSD for P11 fit? Cusco USA lists part number LSD 185 F for the Infiniti G20 (P11, P10, 1991-2002). The Type RS 1-Way Front LSD for P11 replaces the factory front differential, so check the notes on this page for any model or transmission limits before ordering.
What does 1-way mean? A 1-way LSD locks only under acceleration. When the driver lifts or brakes it stays open like a factory diff, so the car turns in and rotates freely off the throttle. It is the most forgiving setting for a car that is also driven on the street, and the least likely to make the car push on corner entry.
How does the Type RS differ from the Type MZ? The Type RS sets its initial torque with coil springs that push in the same direction as the activation pressure, so it engages smoothly and quickly with a lower initial torque. The Type MZ uses a high-pressure cone spring, giving it the highest initial torque of any Cusco LSD and a stronger, more linear lock suited to competition.
Can the LSD be rebuilt? Yes. The friction plates in any clutch-type LSD wear over time, and Cusco supplies service parts such as replacement plate sets for its units, so the Type RS 1-Way Front LSD for P11 can be overhauled rather than replaced. How often depends on use; a car that sees regular track or drift days will need it sooner than a road car.
What should I know before installing it? On a front differential the transmission must be removed and split to fit the Cusco unit, so most owners have a drivetrain specialist do it. Plan on fresh gear oil, since Cusco sells its own LSD oil for clutch-type differentials, and read the notes on this page for any extra parts Cusco says the job needs.

About CUSCO

CUSCO is the brand of Carrosser Co., Ltd., founded in December 1977 and based in Takasaki, Gunma Prefecture, Japan. Carrosser designs and builds coilovers, limited-slip differentials, clutches, roll cages and chassis parts, sells its steel cages under the Safety 21 name, and competes in every All Japan Championship category from circuit racing to rally and gymkhana. CUSCO USA, a division of Carrosser, is based in Huntington Beach, California.

Additional Information

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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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Cusco Type RS 1-Way Front LSD for P11 / P10 Infiniti G20 [LSD 185 F]

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Cusco Type RS 1-Way Front LSD for P11 / P10 Infiniti G20

Design and Performance

Features

Specifications

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Notes

Frequently Asked Questions

About CUSCO

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