Phantom FTS Electric Supercharger Owners Thread

[PantsDants]

To my understanding, Knock Correction Advance Max A is the amount of timing the ECU is allowed to pull in response to knock for a given load/RPM cell. Setting it to zero may actually prevent the ECU from responding to knock at all, even though the events are still occurring. Remember, the parameters that we log, FBKC and FLKC, aren't the knock events themselves; they're the ECU's response to what it thinks is a knock event (FLKC is a bit different, but the logic still applies). Just because you don't see those parameters logged anymore doesn't necessarily mean knock isn't still occurring.

Said another way, the total ignition timing is the sum of Knock Correction Advance Max A and Base Timing A/B (B is what's normally used; I think A is for limp-home or post-start, not sure which). There are probably some other compensations applied as well. You can achieve the same effect you're going for by rescaling the load axis on Base Timing B and removing timing from there. Since it looks like you're pulling 6 degrees total, I'd go ahead and pull 3 from Base Timing B and 3 from Knock Correction Advance Max A in the affected cells. That way, you still have some headroom in Knock Correction Advance Max A for the ECU to pull timing in response to knock. It may actually reveal that it's still knocking in that range.

[KoolBRZ]

Here is my prototype rescaled Base Timing B table. It goes up to 4.0 Engine Load because I've logged up to 3.82 Engine Load. Now timing can be pulled from wherever knock is coming from. Load columns 1.4 through 4.0 are all the same, so far. That is where I'll be making most of my changes. I'm also trying a rescaled BTB table with a smoother transition. That's the 2nd pic.

[KoolBRZ]

Here's my current Base Timing B table compared to the table, above, that I started with. You can see how much timing I've pulled from it so far. It's quite a lot. More than I expected anyway.

[stevo585]

The load only goes to 1.7 or so. No need to go past 2.0. I have 1.3, 1.4, 1.5, 1.6, etc on my Ecutek tune for better resolution. I suggest this.

[KoolBRZ]

Originally Posted by stevo585

The load only goes to 1.7 or so. No need to go past 2.0. I have 1.3, 1.4, 1.5, 1.6, etc on my Ecutek tune for better resolution. I suggest this.

I have pulled timing because of engine knock that only occurs above 2.0 Engine Load. Look at my post above. I've logged up to 3.82 Engine Load, so I rescaled to 4.0. Both BTB, and KCA tables should be rescaled up to 4.0, so the ECU can compensate accordingly.

[stevo585]

Well I'm pretty sure it's maf voltage I'm referring to. Maybe I'm wrong not sure. Anyways a reputable tuner told me the Fa20 does not like high load deltas. As in they will knock badly. Be careful.

Either way your resolution is terrible maybe your limited by Rom Raider idk.

[stevo585]

On another topic what kind of pcv and catch can systems do you guys run. Right now I have nothing...

[Sojhinn]

Originally Posted by stevo585

On another topic what kind of pcv and catch can systems do you guys run. Right now I have nothing...

I'm running the mishimoto catch can. As for the check valve.... I can't remember the company and it wasn't cheap for a check valve.


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[KoolBRZ]

Here are my latest rescaled KCA and BTB tables. Knockless, so far, so they probably need more timing advance.

[Lord09]

My ESC for sale: http://www.ft86club.com/forums/showthread.php?t=100623

[stevo585]

Originally Posted by KoolBRZ

Here are my latest rescaled KCA and BTB tables. Knockless, so far, so they probably need more timing advance.

I'm able to run 22.x degrees at redline, 28 through the midrange with afr around 11.8 if that helps. On 93 octane. This was my knock wall.

[KoolBRZ]

Originally Posted by stevo585

I'm able to run 22.x degrees at redline, 28 through the midrange with afr around 11.8 if that helps. On 93 octane. This was my knock wall.

Can you post a pic of your BTB table?

[DAEMANO]

Originally Posted by stevo585

On another topic what kind of pcv and catch can systems do you guys run. Right now I have nothing...

Also running the Mishimoto catch can. The check valve is from a company called Boomba


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[stevo585]

Originally Posted by KoolBRZ

Can you post a pic of your BTB table?

If I could data log I would. When I do eventually get my own ecutek cable I will.