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Summary of change:
We are building a custom bike, with a Honda CBR250R (2015) engine (1 cyl, 250ccm). We are planning to use VEMS v3.6; currently selecting the right options. I made a list about the options, and with the possible choices: ||'''1-wire interface''' || not needed|| ||'''EGT-input''' (exhaust gas-temp. input)||maybe yes, but not essential|| ||'''ETC BridgeOutput Interface ''' || no need, we have manual gas control (with bowden)|| ||'''Flyback type''' ||still do not have certain information, just the type of the injector (Keihin 0660 52219 FBBJF)|| ||'''Hi-side PFET outputs ''' || no|| ||'''Ignition driver''' || yes, 2+6 (cost-effective and the most suitable for one cylinder)|| ||'''Knock input channels ''' ||no|| ||'''LCD connection ''' ||yes|| ||'''MAP connection ''' ||we have a Keihin sensor unit (with 5-pin connector) for that, still don't have a datasheet, just serial numbers: 5318A (includes MAP sensor, IAT sensor, TP sensor)|| ||'''Mounting-style'''||flanged case is good|| ||'''Primary trigger''' ||VR (I have found the stock trigger as inductive, then it is suitable, isn't it?) 12 toothplaces, 3 missing|| ||'''Secondary trigger''' ||no, we don't have camshaft position sensor|| ||'''Service''' ||maybe yes|| ||'''Special request''' ||now, we have just initial questions, so we have not got any request|| ||'''With SD card''' ||internal or removable: I thought it is only for logging datas, then what is the difference between the two options?|| So the questions are: *EGT-input: would you use it in a motocycle? ** Exhaust quantity is much smaller than on other engines. Maybe the 2mm EGT ? *Injector: which flyback type do you recommend? ** '''measure injector resistance''' *MAP-sensor: we have an external (Keihin) sensor unit, which includes MAP... if MAP sensor signal is between 0-5V => '''offboard''' *Mounting type: what are the other options(no-screws; screws; unspecified) mean in real life? ** choose default or flanged (easiest mounting. The others are for compatibility with old installs) *VR sensor is the same as inductive sensor (or type of)? ** yes, just "inductive sensor" is a poor name that should never be used (because HALL sensor also measures magnetic induction B, unit=milliTesla). '''measure resistance in both direction''' * SD card is for datalogging. ** alternative option is logging via external tool (PC, notebook, or controller) The logger can be directly connected, or via radio (eg. wifi or BT or special protocol). *for future improvements: can VEMS handle fast switch ** you mean sudden power supply shutdown ? Careful installation is needed of course. Eg. powerful (max 18V) unidir transient diode should be applied externally. VEMS supply voltage can be +9V or even +7.5V (=> helps power consumption if made with SMPS, and more protection against offensive flyback from inductors like injector(s)). * or start electronics? ** yes, if engine is rotating it can be controlled These are my questions for now, if anybody has answers, I would really appreciate. Thank you.
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