Type R Mapping and base timing.

Now that the ecu is working well, its a bit of a pain doing things through the hand commander as you can't get a full view of the map, like available on the laptop, so its a little risky just to modify things without having a clear picture of the map values.

I decided, that until I can afford the FC Datalogit software, Ill make a spreadsheet, to record all the values that I manually input into the commander.

So far, I have been working on a base timing map. The timing values are extremely aggressive, in the Apexi base map (like the Japanese stock ecu map) and although they will work on Japanese fuel, they won't work so well on out UK fuel here!

As a starting point, before doing anything, I plan to pull 4 Degrees timing across the map as a safety. I may need to do more for top end, but until I get the wideband into the exhaust and do a few runs, I want to just make sure the whole overall shape of the map is maintained. Excel allows you to then make a 3D chart and get an idea what the timing table looks like in modern engine management systems. It also lets you check for any erroneous or spikes in the data that looks out of place. By keeping the transitions and values between cells smooth, you can make sure a smooth power curve in the end!

I then zero'd the top two rows in the table, this means that as you lift off the throttle and the ecu drops back the load, you will get some splutter and popping in the exhaust. More for artistic effect that practicality! It just sounds good.

Now that the map is looking OK, its time to punch the details into the hand commander manually. A very long and tedious process....