Not yet. Still waiting!
Did a number of runs just now on map 2. 0-90ish mph. It certainly pulls even harder than map 1, but, I worry about the ECU pulling a little bit of timing roughly right below 3750 rpm, despite it being relatively cold outside (66ºF at night). Comparing my logs to Map 1 at the same RPM's, it doesn't look like it's pulling timing in that same area. All RPM's above that are great, though - no timing pulled. Interesting thing is, after a few runs, the ECU seemed to learn a bit and not pull timing in that area anymore.
Take a look... First few runs, essentially back to back. Circled is the area where timing was pulled - you could feel it drop a little bit of power at that RPM for a split second.
View attachment 21975
View attachment 21976
By the 4th run, the timing began staying more consistent. No more perceptible drop in power.
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Now take a look, this is about the 5th run, no more dip in timing in this area;
however, it looks like it's starting out with less advanced timing to begin with after flooring it. Looks like the ECU has learned to trim it back a little beforehand so it doesn't feel like it's losing power in that spot. That's amazing...
View attachment 21978
Lastly, here is map 1 when it was really hot outside.
View attachment 21979
Now that I'm looking at all of them at once, it actually looks like the timing is very similar between Map 1 and Map 2 when comparing my last couple runs of Map 2 to Map 1.
I wonder if the JB4 is causing the ECU to think the boost is substantially lower at that RPM point, so the ECU thinks the timing should be more advanced. However, since boost, at that given RPM, is actually higher than what the ECU perceives, knock potential rises. When switching from Map 1 to Map 2, the ECU thinks the boost is even lower, so timing is more advanced, when in reality boost is actually even higher, so it has to dial back the timing... I suppose it takes a few pulls to compensate for this.
Either way, I will have to log some pulls during the day time when it's hot outside and see if anything changes. Until then, it looks like Map 2 is working well on my car with 92 octane pump fuel; but so far it's only verified when cold outside.
On a side note: Despite being 66ºF outside, looks like my AIT's ranged from 91ºF all the way up to 118º (after doing a few back to back pulls). That said,
I think there is some room for a bigger/better intercooler, and possibly even some heat reflective tape on some of the intake piping.
Damn. This car is getting fast already. Excited for more.
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