An in-depth talk about FL5 ECU tuning

[champ_white_FL5]

Now to some info you CAN use:

I was checking how Hondata managed to do their base tune for the R and ok.

I respect them A LOT as a company, and tuned hundreds of cars on S300 and dozens on Flashpros but I´d say their aproach is wrong. And lots of important missing tables. I´m nobody but If at any point HONDATA wants help from some idiot tuning Bosch ecus since carbs lol I would be happy to help. Anyway.

FIrst thing they lack is START OF INJECTION maps, at least for homogen injection, which is what the ECU uses at full load. That could give users the chance to get a little more juice from OEM injectors without experiencing misfires at high speeds or just leaning out.

Second thing is turbocharger model tables. This may look overkill but if you don´t set the turbocharger model properly, pre control will be far off and you will be relying in the PID to get you where you want, and that may never happen lol. Basic shit like a free flowing exhaust system will make boost control a little off.

Third thing and now trust me on this one.

Hondata basemap basically maxed out everything and tuned the car using compaction ratio tables, this ones

while tables like this are maxed out at the 100% TPS region

Its not necessarily bad to do that but why not make it a little more progressive instead?





Now...

FOCUS HERE:

THIS IS WHERE YOU SHOULD LOOK AT!

Why the f*ck is this maxed out when this is the table that calls for the actual torque your car delivers at a specific RPM.

Look at how this is modeled stock:

Recognise this curve??????? THis is your stock torque curve.

Don´t recognise the torque values??? seem a little high?

that is because they are wrong! For some reason whoever translated the data assumed that maxed value was 655 (probaly because it is a 16 bit value but whatever), when it is not. Maxed out value is 100% of 600NM which is the REFERENCE TORQUE VALUE, for all the torque model on the ECU.

EITHER WAY, when tuning this table, do not max it out, start with it STOCK, and then DRAW IT LIKE ONE OF YOUR FRENCH GIRLS, raising it little by little and see the magic happens.

of course you need to raise boost limiters at some point, but trust me, if you start from a stock calibration and raise NOTHING but this values, you will gain a lot of power before you find the pressure ratio (boost) limiters. Keep in mind to raise the torque limit per gear per driving mode because you may hit that limit also

This is the hondata basemap? Does that maxed out torque table risk engine damage? Have they updated the basemap since this was posted?