SMT8-FT TECHNICAL MANUAL

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Support for your SMT8-FT Unit.

INSTALLATION

The minimum installation is a good way to start getting acquainted with your SMT8-FT. It is quick, requires very few tools but does not allow you to enjoy the full potential of the product. The SMT8-FT (FT for short), can do so much more, and its power and the benefits to you are unleashed when you connect a few more wires (see the section on the Full Installation).

 

 

MINIMUM INSTALLATION

 

This installation is the absolute minimum and will provide you with a one dimensional map with 24-RPM sites spread over the calibrated RPM range. The number of sites on a map is an indication of the amount  of tuning that can be done for a specific area, in this case RPM.

 

 

PRACTICAL STEPS

 

The minimum installation has been broken down into 6 (six) practical steps, with photos. These steps cover the installation of the unit into the vehicle and the unit is not connected to a computer. Once the physical installation has been completed the engine will run as before. For the purpose of tuning the engine you need to consult the : LetRipp II Software Guide. This manual covers all aspects of the PC (Laptop) operation.

 

 

STEP 1 : FIND A SUITABLE LOCATION TO MOUNT/INSTALL THE UNIT

 

Find a suitable location for the unit, i.e :

Away (or shielded) from hot surfaces
Within harness reach of the injectors and the vehicle's ECU (Engine Control Unit)
Protected from water, water spray, or high pressure water cleaning. This is because the unit is not water-resistant or water-proof.
If possible, in a ventilated area.

 

 

STEP 2 : LOCATING THE INJECTORS OF THE ENGINE

 

SMT8-FT - Locating The Injectors of the Engine

 

Look around your vehicle's engine and locate the injectors of the fuel injected petrol engine.

Connect the loose wire (ground) of the injector harness(es) to a suitable place on the metallic chassis. This is to GROUND the unit.

 

 

STEP 3 : CONNECTING THE PLUG-AND-PLAY INJECTOR HARNESS(ES)

 

SMT8-FT - Connecting the Plug and Play Injector Harness

Remove the existing injector caps/plugs, by unclipping them. As shown in the photo above.

 

SMT8-FT - Connecting the Plug and Play Injector Harness

Using the plug-and-play harness(es) supplied with the FT kit, connect the injector harness to the injectors (if you are installing on a 4 cylinder engine, you'll have two sets of plug-and-play injector harnesses). As shows in the photo below.

 

SMT8-FT - Connecting the Plug and Play Injector Harness

 

STEP 4 : CONNECTING THE GROUND WIRES

 

Connect the ground wire(s) to a suitable metallic place on the chassis. In the photo above there were two screws in the chassis, which made it easy to attach the lugs to the chassis.

 

Note : If there is no metallic section exposed on your vehicle's chassis, you may need to scratch some of the paint off to expose the metal.

 

 

STEP 5 : CONNECTING THE HARNESS TO THE UNIT

 

Connect the connector plugs from the harness to the matching connector on the unit.

 

 

ADAPTING THE PLUG-AND-PLAY INJECTOR HARNESS

 

The SMT8-FT plug-and-play injector harness has been manufactured to clip onto Bosch Injectors. If you find that your vehicle does not have Bosch injectors, you will need to replace the Bosch Injector clips on the SMT8-FT plug-and-play harness, with the applicable injector clips for the injectors in your vehicle.

 

The polarity of the wires is not important. However, the male/female connectors must not be swapped.