You're welcome byakuya, it's been long overdue
- my apologies for feeding along also in other threads.
That's what I'm interested to see about the E85/meth options. Since part of the skyactiv suite means the ECU is running the engine up as close as it can to max timing without causing detonation, it's hard to know without really trying.
I'm quite sure once the tuning is out there we have a ton of potential, but the thought process here was to bring temperature down and allow the ecu to possibly add more timing and extract more power. With a colder charge of air you may get even 1-2* more advance. It's not a lot, but it can make just enough of a difference IF the ECU would allow for it. (same for E85 and meth^).
In general people tend to under-estimate what the ECU of a car is capable of adapting to. It's rarely optimal, but the LTFT and STFT are capable of dialing up and down the fuel flow quite a lot in other cars. I'm not sure if the fuel trims learn in this car, or if fuel is somewhat static and it's the timing and valve events that change. It's quite the technical little thing either way :P. As an example, with 10 year older tech my car adapted to a cam with 5* of cam advance, 36* of overlap duration, and MUCH MUCH higher volume flowing heads.. and it was only a little rich, mostly due to the reverb from the open headers causing the o2's to pick up "lean" outside air
And any other thoughts on power gain options are MORE than welcome here. That is entirely what this thread is for
. hand ported throttle body perhaps? I honestly don't even know what the TB port on our car looks like!
(shame on me right? I know my other car's engine from oil pan to air filter, LOL!)