The Hondata S300 is a plug in module to the factory Honda Engine Computer (ECU) which vastly expands the capabilities of the factory ECU. Forced induction, data logging, real time updating of parameters, engine protection are but a few of the s300 features. The s300 uses different connecting pins in the ECU from the s100/s200, and also has a slot cut in the side for the USB connector, so the ECU must be modified for use with the s300.
The s300 uses a high speed USB connection for both programming calibrations and datalogging. No more USB/serial connectors!
S300 for regular rectangular body type USDM OBD1 ECU (P06, PR4, P28, P30, P61, P72, P74, P75) P06/PR4/P74/P75 will need VTEC conversion in order for VTEC operation.
S300J for the smaller square body type JDM OBD1 ECU (P30, P08, P72)
S300B for boosted applications using long body type USDM OBD1 ECU. Please contact us for more information on the S300B as there are prerequisites required for the S300B.
Real Time Update: The s300 can be updated in real-time with the engine running without affecting the operation of the vehicle. This means that calibrations and changes can be uploaded to the ECU very quickly (2 seconds for a new calibration, a fraction of a second for anything else), without interrupting the operation of the engine. Changes made in the SManager software are uploaded to the ECU instantly and you can see the effect immediately. The s300 does not use an EEPROM or equivalent, so you never need to open the ECU to change chips nor 'burn' ROMs. No EPROM programmer is necessary - you just need a laptop with USB port.
Datalogging: The s300 has datalogging to the SManager software built in via the USB port. Using a laptop the various ECU sensors can be datalogged, viewed, graphed and saved for later analysis. Additionally the s300 has on board flash memory which allows a datalog recordings to be made without a laptop, for later access and download to a laptop.
Map Sensor Compatibility: Any linear MAP sensor can be used, using a scalar and offset to translate the MAP sensor characteristics into pressure. Popular MAP sensor settings are built in for ease of setup. To do this you will need the map sensor calibration numbers from the manufacturer of the sensor.
ECU Preparation: It is strongly recommended that you have this professionally installed as this is more difficult to install than an s200 and if the ecu has been previously socketed you run an even higher risk of damaging the ecu (lifting tracks and or burning them).
8 analog inputs (for datalogging only) 1 digital input (for datalogging only) Additional security to help identify and prevent theft Datalogging memory is no doubled in size for up to 2-hours of recording Non-battery memory for greater reliability and longer life On-board calibration storage
For vehicles with manual transmission use only.
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