Link G4X RX7S7X Plug-In ECU, Mazda RX-7 FD3S Series 7 and 8 13B-REW

The Link G4X RX7S7X is the plug-in ECU for the later FD3S Mazda RX-7, Series 7 and Series 8, with the 13B-REW. It fits the factory ECU case and loom, uses the factory MAP sensor, controls the metering oil pump and adds a second CAN bus over the Series 6 unit. Like the Series 6 version it runs naturally aspirated, parallel twin-turbo or single-turbo setups, not the factory sequential twins.

Fits

• Mazda RX-7 FD3S Series 7 with the 13B-REW
• Mazda RX-7 FD3S Series 8 with the 13B-REW
• Manual transmission only

Before you order

• Does not control the factory sequential twin turbos. Plan on a single-turbo, parallel twin-turbo or naturally aspirated setup.
• Manual transmission only.
• Series 7 and 8 only. Link dates the Series 6 to 1992-1995, which takes in the North American-market RX-7s; those cars need the RX7S6X (218-4000).
• If you keep the factory metering oil pump, it must be set up correctly in the ECU so the engine is never short of oil.
• No onboard MAP sensor. The factory 220 kPa MAP sensor is used, or an external sensor can be wired through the expansion connector.
• Electronic throttle (drive-by-wire) control is not usable out of the box; check the requirements with us before planning a conversion.
• Configuration choice: Standard is the ECU as Link builds it. With E-Throttle Upgrade adds Link's factory modification (part 400-0100) so the ECU can drive an electronic throttle body. Link's HQ carries it out on a new ECU before it ships, which adds about 3 weeks. Link only modifies new ECUs, so an ECU you already own has to go through Link's tech support instead.

Highlights

• Metering oil pump control for the factory pump
• Boost control for single-turbo or parallel twin-turbo conversions
• Two CAN buses; PCB version 1.4 boards use 4-pin CAN connectors
• Expansion connectors with additional analog inputs
• G4X core features: flex fuel, open and closed-loop boost control, dual closed-loop lambda, VVT control, a built-in trigger oscilloscope and 512 MB of onboard logging
• Motorsport functions: launch control, anti-lag, traction control, nitrous control, cruise control, gear shift and paddle shift control
• USB tuning cable in the box; PCLink tuning software is a free download from Link

Specifications

• Platform: Link G4X
• Communications: 2 CAN bus channels, LTW 6-pin USB tuning connection
• Data logging: 512 MB onboard
• Operating voltage: 6.5-24 V (36 V maximum input)
• Dimensions: 190 x 160 x 30 mm (7.48 x 6.30 x 1.18 in)
• Weight: 260 g (9.17 oz)
• In the box: RX7S7X ECU, anti-static strap, USB tuning cable, Link stickers, plug-in manual card, product registration card