The products available on this site are intended for off highway use in sanctioned racing events only. Customer is responsible for observation of all federal, state, and local laws and statutes regarding legality of use. LMS-EFI LLC does not condone use of these products in a manner which does not comply with these laws.

Syvecs S-GDI Standalone ECU

  • Sale
  • $3,700

The SDI ECU is the perfect solution for integrated direct injection engine management. Based on the highly popular S8 architecture the SDI just has less inputs and outputs for those GDI applications that don’t require the complexity of the full S8.

The SDI is designed to directly control and drive all Gasoline Direct injectors including parts from Ford, GM and Bosch (including Bosch Motorsport types) without the need for an external driver box. As standard it caters for 4 Cylinder engines but we can provide for more cylinders via the use of our S12 Ecu and GDI Boxes

Cased In A Sealed Aluminium Billet Unit With 1 x Waterproof Connector Offering 88pins


24 x General Purpose Analogue Inputs:
16 x 5V/Bipolar, Sensor/Sync/Speed, Programmable Trigger Voltages
4 x 5V Sensor Input
4 x Thermistor Sensor Input

2 x NTK Lambda Inputs

2 x K-Type Thermocouple Circuit
2x Knock Input


24 x High/Low Side Driver Outputs:

4 x Half Bridge Outputs (Max 10 Amps)
12 x Low Side Injection/PWM Outputs (Max 10 Amps)
4 x TTL / IGBT Ignition Drivers

4 x GDI Drivers


2 x Can 2.0B

1 x Rs232 Output

100 Mhz Full Duplex Ethernet For Connection To PC For Programming And Data Download


Up to 64MB Internal Logging Memory aswell as Onboard Laptop Logging

6 to 20v input voltage range with reverse polarity protection

3 x regulated 5V sensor supply outputs with protection

Operating Temperature -25 to +95 C

Dimensions 178 x 122 x 36 mm