Home | WRX/STi/XT/GT/Baja Turbo | Impreza 2.5 | Legacy/Forester/Baja/BRZ | Specials | Gallery | Contact Us | Order Form

Perfect Power Piggybacks and Stand-ALone ECUs

Please be patient, certain parts are made per order and require time to manufacturer. All parts will be immediately shipped as they become available. All prices do not include any core charges, shipping, taxes or installation charges. All orders are considered 'Special Order' and are paid in full at time of order via wire transfer or as agreed. All pricing must be verified the day of quote, at time of order, at time of shipping and will be adjusted based on the value of the Dollar Internationally. Any deficiency is immediately due upon billing and before delivery.

Perfect Power Products

The Perfect Solution to a Powerful Engine Management System


SMT8-L Smart Tuner 8 Lite

The SMT8-L piggy-back system also follows in the footsteps of the SMT6 and SMT7 products, just like its big brother the SMT8, but with un-paralleled performance and a quantum leap in technical innovation. This is all possible with the latest 16 bit DSP processors. The SMT8-L is the first piggy-back that offers you the capability to do DUAL AFR tuning, as well as ETC (Electronic Throttle Control) tuning.

The SMT8-L has two complete maps. Which means you can switch between two different tuned maps while driving. It is possible to have one map for economy, the other for performance. Or use the maps for different weather conditions. The Maps can be switched from the hardware input. The parameters and calibration are not switched. The maps can be 'locked' into a fixed position from the PC for tuning and downloading.

The SMT8-L piggyback is applicable to:

Tuning, Auto tuning, Dyno tuning, Auto tuning, Chip Tuning, Tuning cars, Performance tuning, Chip Performance, Engine performance, Auto performance, Computer Tuning, Piggyback tuning, Vehicle tuning, Computer ECU, Fuel consumption, Increasing Horsepower, Eco tuning, Fuel Injection, Turbo charger, Engine tuning and many more.

The SMT8-L can drive one extra injector (13 ohm) for supplementing fuel at high boost. The extra injector can be controlled via Throttle/RPM, AMP, Engine and Air temperature maps. This allows for precise fuel delivery at boost conditions. This feature is very popular with turbo and supercharger installations.

The SMT8-L is the first Perfect Power piggy-back product to allow ETC modifications. The ETC flap control can be modified (re-mapped) with the SMT8-L. It takes some skill to negate the effect of the ECU traction or launch control, but if you want to spin tyres then this is the way to go!

The SMT8-L product is currently available in two kits: the SMT8-L User Kit and the SMT8-L Kit.

SMT8-L-UKIT includes:

1 x SMT8-L Light Controller

1 x SMT8-L Tuning Harness

1 x USB Communication Cable

1 x CD with LetRipp Software and Manuals

SMT8-L-KIT includes:

1 x SMT8-L Light Controller

1 x SMT8-L Tuning Harness




System Definition Tailor the unit to your application
Ignition advance/retard limits Restricts ignition modification range
Start second specification Prevents action after power-up
Analogue Upper/Lower limits Prevents analogue over-ranging
Frequency Modification Tune a frequency airflow meter
Frequency upper/lower limit Prevents frequency over-ranging
Boost Control Controls the turbo boost
Boost loop gain parameter Set the boost control gain
Cut protection action Signal cut when protected
Retard protection action Retards ignition when protected
Modify protection action Proportional protection
Frequency protection Protects a frequency signal
AMP protection Protects an AMP Signal
Engine Temp. Protection Protects the engine temperature
Air Temp. Protection Protects the air temperature
RPM protection Protects RPM
Time before protection action Specify time before action takes place
Ignition window For not so perfect crank signals
Analog modification channels Allows you to map three engine signals
Wide band AFR modification Allows one wideband AFR tuning
Narrow band AFR modification Allows two narrowband AFR tuning
External display specification Tailor your display needs
TPS calibration Adapt your TPS sensor
TPS direction Specify Up/Down direction
Engine temp. calibration Two-point adaptation to your engine
Air Temp. Calibration Two-point adaptation to your engine
AMP calibration Linear adaptation to your engine sensor
RPM calibration Set the operating range
External display testing Verifies the external display function
Teeth per injection setting Operates the external injector timing
Teeth per crank turn Adapt to your crank trigger wheel
Edges per crank turn Adapt to your crank trigger wheel
Ignition map with 384 points For three dimensional Ignition tuning
Ignition AMP map Provides AMP ignition tuning
Ignition Engine temp. map Provides Engine Temperature ignition
Ignition Air temp. map Provides Air temp. ignition tuning
7 steps per degree ignition Very fine ignition replication
Injection map with 384 points Two maps for two injection activation
Injection AMP side map Provides AMP injection tuning
Injection Engine temp. side map Provides engine temo. injection tuning
Injection Air temp. side map Provides air temp. injection tuning
Analogue maps with 384 points For fine tuning of two analogue signals
Analogue AMP side map Provides analogue AMP tuning
Analogue Engine temp. side map Provides analogue Engine temp. Tuning
Analogue Air temp. side map Provides Analogue Air temp. tuning
Frequency or PWM tuning Both signals can be tuned
Frequency map with 384 points For fine tuning a frequency/PWM signal
Frequency AMP side map Provides frequency AMP tuning
Frequency Engine temp. side map Provides frequency engine temp. tuning
Frequency Air temp. side map Provides frequency air temp. tuning
Boost basic PWM setting Two PWM settings for different loads
Boost air temp. map Different PWM settings for air temp
Boost Target map Precise boost target control
Manual map switching From the dashboard
PC map switching For loading set ups into different maps
USB 2.0 communication Communication and optional power
Built-in factory test With dates and results
Administration text field For saving manufacturing data
Dealer info text field For dealer identification
Branding text field Branding information
Password text field Access control
Maximum RPM recording User retrievable recording
Maximum Engine temp. record User retrievable
Maximum Air temperature User retrievable
Maximum AMP recording User retrievable
Fault indication on all major items Easy installation and trouble shooting
Re-flash enabled Upgradeable in the field
Comprehensive help text Easy understanding without manual
14 point hardware test procedure Tests every hardware function
Engine real-time data For monitoring and display

Back to Peripheral Products
Back to Main Products Page