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Old 08-16-2011, 08:48 PM   #1
savvy
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2011 STI
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Default Could use another set of eyes on my AP log

So I have been through a bunch of other need help with my logs threads and learned a lot. I just wanted a second opinion for piece of mind on how everything looks.

2011 STI Sedan bone stock ~1450miles. AP been loaded for about 4 days on Stage 1 93oct. Did a 3rd gear pull from about 2300-6300RPM. I am only showing a little bit of knock (is this within acceptable parameters?) and it doesn't seem to be up too close to redline. Does everything look ok?


https://spreadsheets.google.com/spre...FPd1E&hl=en_US


93 Octane map with different gas and additional parameters.

https://spreadsheets.google.com/spre...dMQXc&hl=en_US

91 octane map (93 in the car)

https://spreadsheets.google.com/spre...RBcHc&hl=en_US
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Last edited by savvy; 08-17-2011 at 09:26 PM. Reason: Added info
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Old 08-16-2011, 10:15 PM   #2
RoninSTI
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I'm curious to see others replies to this. I had some fine knock learn on my stage 1 2011 STi, but a bit earlier in the RPM. You may want to post this on IWSTI, they seem to be a bit more active in their Accessport forum.
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Old 08-17-2011, 08:31 AM   #3
Cobb Tuning
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Default

Quote:
Originally Posted by savvy View Post
So I have been through a bunch of other need help with my logs threads and learned a lot. I just wanted a second opinion for piece of mind on how everything looks.

2011 STI Sedan bone stock ~1450miles. AP been loaded for about 4 days on Stage 1 93oct. Did a 3rd gear pull from about 2300-6300RPM. I am only showing a little bit of knock (is this within acceptable parameters?) and it doesn't seem to be up too close to redline. Does everything look ok?


https://spreadsheets.google.com/spre...FPd1E&hl=en_US
Hi there. Your log shows one knock event (where feedback knock first drops from zero). The rest of the negative values just shows the ECU slowly ramping feedback knock to zero (which is normal). That said, the knock event was at high load and it was not due to mashing the throttle (which can be normal). The question would be if this knock is fairly consistent or not and whether or not this run was under unusual conditions (say sitting at a light with high outside temps resulting in a lot of heat soak, then going WOT soon after).

You may want to consider changing gas stations/brand, especially if you are using a no-name brand. See what others in your area have luck with. You could also run the stage 1 91 octane map while still running 93, which would be a more conservative approach. All 93 octane gas is not the same and some cars, due to just variations in production, don't like to run as much timing as others. Can't say one way or another based on only a single log, though.

Edit: for your next logs, reset the log list to the default (via menu option on AccessPORT). We can then see what you boost is doing relative to the ECU's final boost target (that item - TD Boost Error - was removed from your list).

Bill
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Old 08-17-2011, 09:06 AM   #4
savvy
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Awesome, thanks Bill. I actually need to get gas today anyways. I will make another log tonight and see if anything has changed. I will also make a log with the 91 map for reference.
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Old 08-17-2011, 09:29 PM   #5
savvy
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Bill / All,

I updated my original post with new results. Different gas station was used (Mobile). Conditions were optimal, 70 degrees outside, was cruising around for a while before pulls so engine was up to temp and no heatsoak. Knock is entirely gone!! on both maps How does my boost levels look on the 93 map?
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Old 08-18-2011, 08:49 AM   #6
Cobb Tuning
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Originally Posted by savvy View Post
Bill / All,

I updated my original post with new results. Different gas station was used (Mobile). Conditions were optimal, 70 degrees outside, was cruising around for a while before pulls so engine was up to temp and no heatsoak. Knock is entirely gone!! on both maps How does my boost levels look on the 93 map?
Both logs look good. With the 91 map, your dynamic advance multiplier (DAM) hadn't learned up to 1.0 yet (actually did so during the run). You want that to happen before your run so you are running full timing during the run.

I think you can continue with the 93 map, I would just keep logging to make sure. Remember, occasional correction is normal. Where it can be a problem is a repeatable correction at higher load such as during a WOT run or a large correction at moderate/high load, assuming either of which are not the result of mashing the throttle.

Bill
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