Which cars does the Type RS 1.5-Way Front LSD for EG/EH/EJ fit?

Cusco USA lists part number LSD 318 C15 for the Honda Civic (EG/EH/EJ, EK9, 1992-2000) and the Honda Civic del Sol (EG2, 1992-1998). The Type RS 1.5-Way Front LSD for EG/EH/EJ replaces the factory front differential, so check the notes on this page for any model or transmission limits before ordering.

What does 1.5-way mean?

A 1.5-way LSD locks fully under acceleration and partly under deceleration. The extra coast-side lock ties the driven wheels together when the driver lifts or brakes, which steadies the car on corner entry and under trail braking, at the cost of a little more push than a 1-way. It is a common choice for track cars.

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 ramp setting be changed later?

Cusco lists the setting for this unit as 1.5 way (1 and 1.5 way). Where Cusco names an alternate or optional ramp set, the unit can be changed over when the differential is opened, so it is best combined with a differential service rather than treated as a quick change at the track.

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 1.5-Way Front LSD for EG/EH/EJ / EK9 Honda Civic and EG2 Honda Civic del Sol

Cusco’s Type RS 1.5-Way Front LSD for EG/EH/EJ / EK9 Honda Civic and EG2 Honda Civic del Sol replaces the factory front differential with a clutch-type limited-slip unit that uses coil springs to set its initial torque. As a 1.5-way it locks fully under acceleration and partly on deceleration, which steadies the car on corner entry. 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 car that is driven on the road and pushed hard on track.

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 1.5-Way Front LSD for EG/EH/EJ holds the driven wheels together harder as the engine pulls harder.

Features

Coil-spring initial torque system with RS springs inside the pressure rings
1.5-way action: full lock on acceleration, partial on deceleration
Smoother, quicker engagement than the Cusco MZ series
Clutch-type multi-plate design in place of the factory front differential
Built for the Civic and Civic del Sol

Specifications

Cusco part number: LSD 318 C15
Type: Type RS
Action: 1.5-way
Cusco setting: 1.5 way (1 & 1.5 way)
Position: Front differential

Applications

Honda Civic: EG/EH/EJ | 1992-1995 | 1.6L (B16A) – 5MT OEM Open Differential
Honda Civic del Sol: EG2 | 1992-1998 | MT, OEM Diff : OPEN, B16A
Honda Civic: EK9 | 1996-2000 | EK9 (Si – VTEC B16A2) – Open OE Diff

Notes

Fitting the Type RS 1.5-Way Front LSD for EG/EH/EJ means removing the transmission and splitting it to swap the differential; installation labor is not included
Cusco: Comes with speed meter driven gear. To use this LSD for OE Viscous LSD equipped vehicle, requires to replace ring gear and bolts.

Frequently Asked Questions

Which cars does the Type RS 1.5-Way Front LSD for EG/EH/EJ fit? Cusco USA lists part number LSD 318 C15 for the Honda Civic (EG/EH/EJ, EK9, 1992-2000) and the Honda Civic del Sol (EG2, 1992-1998). The Type RS 1.5-Way Front LSD for EG/EH/EJ replaces the factory front differential, so check the notes on this page for any model or transmission limits before ordering.
What does 1.5-way mean? A 1.5-way LSD locks fully under acceleration and partly under deceleration. The extra coast-side lock ties the driven wheels together when the driver lifts or brakes, which steadies the car on corner entry and under trail braking, at the cost of a little more push than a 1-way. It is a common choice for track cars.
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 ramp setting be changed later? Cusco lists the setting for this unit as 1.5 way (1 and 1.5 way). Where Cusco names an alternate or optional ramp set, the unit can be changed over when the differential is opened, so it is best combined with a differential service rather than treated as a quick change at the track.
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 1.5-Way Front LSD for EG/EH/EJ / EK9 Honda Civic and EG2 Honda Civic del Sol [LSD 318 C15]

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Cusco Type RS 1.5-Way Front LSD for EG/EH/EJ / EK9 Honda Civic and EG2 Honda Civic del Sol

Design and Performance

Features

Specifications

Applications

Notes

Frequently Asked Questions

About CUSCO

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