How does the elec-TRON system interact with the R3's manual compression adjusters on the ClubSport?

The DCU manages overall damping through the solenoid valve at 200Hz, but the high and low speed compression adjusters on the piggyback reservoirs stay fully independent and accessible. The elec-TRON layer works alongside the mechanical adjustment, not instead of it. On a ClubSport setup that means you can dial in the mechanical baseline for a specific circuit and let the DCU handle the dynamic damping from there.

How does the elec-TRON R3 ClubSport differ from the elec-TRON R3 FastRoad?

The active damping architecture and DCU are identical across both. The difference is in the spring rates and valving; the ClubSport runs stiffer rates with track-focused tuning where the FastRoad uses softer rates with road-biased tuning. If the car is primarily on circuit, the ClubSport is the right starting point.

What damping maps does the DCU offer?

Six pre-installed maps are accessible via the rotary control switch; three passive and three adaptive. Rain, Tour, Sport, and Race cover the core driving contexts. Within whichever map is selected, the system continues making continuous adjustments automatically at 200Hz. The driver sets the overall character and the DCU handles the rest.

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Description

Nitron elec-TRON R3 ClubSport Coilover Kit for 131 Lotus Emira (with V6)

The Nitron elec-TRON R3 ClubSport Coilover Kit for the Type 131 Lotus Emira V6 combines electronic damping control through Nitron’s proportional solenoid valve with independent manual compression adjustment, giving drivers and engineers control over both the active and mechanical sides of the damping setup simultaneously. The included DCU continuously processes data from the car every 5 milliseconds, assessing vehicle attitude, braking forces, cornering loads, and acceleration inputs to determine the correct valve position and damping level at any given moment. Stiffer springs and track-focused valving put chassis control and on-circuit consistency first, while piggyback reservoirs front and rear keep high and low speed compression adjustment accessible at both ends without adding complexity to the installation. The kit is built for drivers who want to extract the most from the Emira V6’s mid-engine platform on circuit without leaving performance on the table. Every kit is custom built, custom sprung, and fully serviceable.

elec-TRON

Nitron’s elec-TRON system is built around a proprietary proportional solenoid valve fitted to each shock individually on the Type 131 Emira V6, giving the included DCU precise, independent damping control at every corner of the car. G-load, vehicle speed, road conditions, and driver inputs are all monitored simultaneously, with damping adjustments made every 5 milliseconds. A human eye blink takes somewhere between 100 and 150 milliseconds; the elec-TRON system is working at a fraction of that. The suspension is responding to the road and the driver in real time, not reacting after the fact.

Standalone Electronic Damping System

The Nitron DCU is included with the elec-TRON R3 ClubSport for the Type 131 Emira V6. It’s the brain behind the elec-TRON system, transforming a conventional passive damper setup into a precision semiactive platform. Working in conjunction with Nitron’s elec-TRON valve, the DCU continuously processes data from the car every 5 milliseconds; assessing vehicle attitude, braking forces, cornering loads, and acceleration inputs to determine the correct valve position and damping level at any given moment. The result is a suspension system that isn’t set to a fixed damping rate but is constantly optimizing grip and on-circuit performance in real time based on what the car is actually doing. The DCU is fitted with an adjustable control knob giving the driver access to a range of pre-installed damping maps; Rain, Tour, Sport, and Race; each tuned for a specific driving context. Damping continues to be adjusted continuously within whichever map is selected, so the driver sets the overall character and the system handles the rest.
- Supplied with a custom or universal wiring harness
- Utilizes Arm Cortex-M4 processor
- Independent control of 4 electronic dampers
- 6 position rotary control switch or visual rotary display and control allows user to access a number of pre-installed damping maps (3 passive / 3 adaptive)
- Two 3 axis accelerometers
- 3 axis gyroscope
- 200Hz damping control rate
- Configured for application location and settings
- Ideal for resto-mod applications
- Fully resin bonded

Unique Technology

Nitron starts every shock with precision components that go through a thorough design and development process long before final assembly. The modular construction gives engineers the flexibility to approach each application on its own terms, without compromising part quality or how components perform together under real load. Everything is machined to tight tolerances and inspected individually by trained technicians; that standard of quality control runs through every stage of production, not just the end of it. New materials, finishes, and processes go through extensive validation before they’re adopted, with proprietary Nitron technologies built in throughout to produce shocks that consistently hold up against the competition on road and track. That’s the engineering foundation the brand has been built on since 1998.
- Basic Damper Design:
  1. End Eye / Top Mount
  2. Damper Piston & Shim Stack
  3. Shaft / Rod
  4. Floating / Separator Piston
  5. Suspension Oil
  6. Compressed Nitrogen Gas

Bespoke Engineering

Nitron doesn’t adapt a generic damper to fit the Type 131 Lotus Emira V6; they engineer one around it. Every application goes through a dedicated development process where components, spring rates, and damping characteristics are shaped by the specific platform, not carried over from something similar enough to work. The geometry, weight distribution, and suspension travel of the Emira V6 are part of the design from day one, not corrections introduced later. That’s the difference between a ClubSport kit purpose-built for this car and one that was simply made to fit it.

Features

Piggyback reservoir types
No manual damping adjustments are required, fully controlled by the solenoid valve
Preload adjuster
Full alloy body
Consists of 4 coilovers, reservoirs, adjustable top mounts, and DCU kit (DCU, harness, switch)
Hand made to order

Specifications

Coilover Type: elec-TRON R3 ClubSport
Reservoir Type: Piggyback
Mounting Brackets: Not required
Recommended Spring Rates:
- Front: 550lbs/inch (96N/mm)
- Rear: 700lbs/inch (123N/mm)

Applications

Lotus Emira: 131 | 2022-present | 2GR-FE 3.5L V6 supercharged

Other Suspension Kits for Lotus Emira V6

Notes

Only compatible on V6 models, does not fit models equipped with 2.0L I4 turbocharged engine
The Nitron elec-TRON DCU is included so no additional products are required
Custom spring rates also available, please contact us directly here for more information or for a consultation on custom rates
Images used for illustration purposes only. Specific details, finishes and end fittings may differ from that shown.

Frequently Asked Questions

How does the elec-TRON system interact with the R3’s manual compression adjusters on the ClubSport? The DCU manages overall damping through the solenoid valve at 200Hz, but the high and low speed compression adjusters on the piggyback reservoirs stay fully independent and accessible. The elec-TRON layer works alongside the mechanical adjustment, not instead of it. On a ClubSport setup that means you can dial in the mechanical baseline for a specific circuit and let the DCU handle the dynamic damping from there.
How does the elec-TRON R3 ClubSport differ from the elec-TRON R3 FastRoad? The active damping architecture and DCU are identical across both. The difference is in the spring rates and valving; the ClubSport runs stiffer rates with track-focused tuning where the FastRoad uses softer rates with road-biased tuning. If the car is primarily on circuit, the ClubSport is the right starting point.
What damping maps does the DCU offer? Six pre-installed maps are accessible via the rotary control switch; three passive and three adaptive. Rain, Tour, Sport, and Race cover the core driving contexts. Within whichever map is selected, the system continues making continuous adjustments automatically at 200Hz. The driver sets the overall character and the DCU handles the rest.

About Nitron Suspension

Nitron Suspension has been at the forefront of precision suspension engineering since 1998, founded by Guy Evans with the goal of building high-performance shocks for enthusiasts and professionals alike. Over 200 dealers now carry Nitron products across Europe, Asia, the US, Australasia, and Africa. In 2008, the company moved into a dedicated facility in the UK’s Motorsport Valley, adding dynamometers, 5-axis CNC machines, and 3D CAD capabilities to support both growing demand and continued product development. A second expansion came in 2023 with a new office in Murrieta, California. The team behind every Nitron product draws from deep backgrounds in machining, materials technology, hydraulics, bike engineering, and F1 racing, with many engineers bringing firsthand experience as competitive drivers and riders. That depth of knowledge across both the technical and competitive sides of motorsport shapes every product Nitron develops.

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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Nitron elec-TRON R3 ClubSport Coilover Kit for 131 Lotus Emira (with V6) [NTCLO031ER3_CS]

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Nitron elec-TRON R3 ClubSport Coilover Kit for 131 Lotus Emira (with V6)

elec-TRON

Standalone Electronic Damping System

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for Lotus Emira V6

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews